WO2024051221A1 - 一种投影模组及交通工具 - Google Patents

一种投影模组及交通工具 Download PDF

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Publication number
WO2024051221A1
WO2024051221A1 PCT/CN2023/097647 CN2023097647W WO2024051221A1 WO 2024051221 A1 WO2024051221 A1 WO 2024051221A1 CN 2023097647 W CN2023097647 W CN 2023097647W WO 2024051221 A1 WO2024051221 A1 WO 2024051221A1
Authority
WO
WIPO (PCT)
Prior art keywords
reflector
light beam
projection module
vehicle
projection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/097647
Other languages
English (en)
French (fr)
Inventor
邹焕
马明
段军克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP23861925.8A priority Critical patent/EP4579125A1/en
Publication of WO2024051221A1 publication Critical patent/WO2024051221A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/16—Laser light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/689—Flaps, i.e. screens pivoting around one of their edges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F21V13/06—Combinations of only two kinds of elements the elements being reflectors and refractors a reflector being rotatable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2066—Reflectors in illumination beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
    • B60Q1/085—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/40—Exterior vehicle lighting devices for illuminating purposes the light being emitted to facilitate access to the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Definitions

  • the present application relates to the field of display, and in particular to a projection module and a vehicle.
  • the lighting unit of the automobile headlight has changed from the original fixed position to the manually adjustable pitch height, and then evolved to use the position sensor on the chassis suspension to sense the pitch attitude of the body.
  • the lighting unit is connected to the bracket.
  • the bracket is equipped with a rotating shaft in the horizontal direction and fits in the groove of the headlight housing.
  • the lower edge of the bracket and the round head of the motor are fixed with a ball socket.
  • the output signal of the position sensor is sent to the electronic control unit (ECU), which then drives the motor connected to the lighting unit.
  • the motor pushes the edge to rotate around the fulcrum and tilts the entire lighting unit, adaptively changing the light output as the slopes and road surface undulate. Angle and position of the beam on the ground. That is, the bracket and lighting unit assembly are tilted up and down to achieve welcome imaging or front lighting.
  • This application provides a projection module and a vehicle.
  • a reflection unit to the projection module and adjusting the position of the reflection unit by rotating components, the projection position of the light beam is changed.
  • the projection position of the light beam is changed.
  • motor torque and drive current specifications can be reduced, power consumption and cost and carbon dioxide emissions can be reduced.
  • the first aspect of the embodiment of the present application provides a projection module, which can be applied to lighting systems of vehicles and other projection scenes with limited space.
  • the projection module includes: a light source device, a lens group, a reflection unit and a rotating part connected to the reflection unit; the emitted light from the light source device forms a light beam after passing through the lens group, and the light beam is projected to the outside of the vehicle; the reflection unit is used to change the In the transmission direction of the light beam, the rotating component is used to adjust the position of the reflection unit, thereby changing the projection position of the light beam.
  • a reflector is added to the projection module and the position of the reflector is adjusted by rotating the component, thereby changing the projection position of the light beam.
  • the light beam is projected onto the ground at a closer range (ie, the first distance range) or a farther range (ie, the second distance range) from the vehicle for imaging.
  • adjusting the position of the reflector you can project at different distances, replacing the motor to rotate the entire module.
  • adjusting the position of the reflector requires less space, which can reduce the space occupied by the camera module. It can reduce the space occupied by the camera module.
  • the rotating part does not rotate the entire module, but projects the mirrors in the module.
  • the motor torque, drive current specifications, power consumption and cost and carbon dioxide emissions are reduced.
  • the welcome mode compared to the solution of the motor rotating the entire module.
  • Projection module By adjusting the position of the reflector by rotating the component, the light beam can be projected onto the ground closer to the vehicle for imaging.
  • the rotating component is used to adjust the position of the reflection unit, so that changing the projection position of the light beam includes: the rotating component is used to adjust the reflection
  • the position of the unit is such that the reflective unit receives the light beam and adjusts the direction of the light beam emitted by the lens group. For example, after adjusting the optical path of the light beam to a first down-tilt optical path, the light beam is projected onto the ground within a first distance range (for example, 1 meter to 6 meters) from the vehicle for imaging.
  • the motor rotates the entire module.
  • the projection module adjusts the position of the reflector by rotating the component and reducing the motor torque of the rotating component, so that the light beam can be projected to the ground closer to the vehicle for imaging.
  • the angle between the propagation direction of the light beam adjusted by the reflection unit and the plane where the chassis of the vehicle is located is between 9 degrees and 30 degrees.
  • the propagation direction can be flexibly adjusted by adjusting the position.
  • the rotating component in the traveling mode of the vehicle, is used to adjust the position of the reflection unit so that the reflection unit leaves or escapes from the transmission path of the light beam.
  • the motor rotates the entire module.
  • the projection module adjusts the position of the reflector by rotating parts and reduces the motor torque of the rotating parts, so that the light beam can be projected out.
  • the rotating component in the traveling mode of the vehicle, is used to adjust the position of the reflection unit, so that changing the projection position of the light beam includes: the rotating component is used to adjust the reflection unit The position is such that the reflection unit receives the light beam and adjusts the direction of the light beam emitted by the lens group. For example, after the optical path of the light beam emitted by the lens group is adjusted to the second down-tilt optical path, it is projected onto the ground in a second distance range (for example, 8 meters to 50 meters) from the vehicle for imaging.
  • a second distance range for example, 8 meters to 50 meters
  • the minimum value of the second distance range is greater than The maximum value of the first distance range, the angle between the first down-inclined light path and the plane where the vehicle chassis is located is greater than the angle between the second down-inclined light path and the plane where the vehicle chassis is located.
  • the motor rotates the entire module.
  • the projection module adjusts the position of the reflector by rotating components and reduces the motor torque of the rotating components, which allows the beam to be projected to the ground farther away from the vehicle for imaging.
  • the rotating component should have the function of adjusting the reflector to the different positions mentioned above, thereby changing the projection position of the light beam (for example, 1 to 6 meters, or 8 to 50 meters, etc.).
  • the above-mentioned reflecting unit includes a first reflecting mirror and a second reflecting mirror, and the rotating component is used to adjust the position of the second reflecting mirror so that the second reflecting mirror receives The light beam is emitted to the lens group, and the light beam is reflected to the first reflector and then projected out.
  • the above-mentioned reflecting unit includes a first reflecting mirror and a second reflecting mirror, and the rotating component is used to adjust the position of the first reflecting mirror so that the first reflecting mirror receives The emitted light beam of the lens group is reflected by the second reflector and projected out.
  • the above-mentioned reflecting unit includes a first reflecting mirror and a second Reflector, the rotating component is used to adjust the position of the first reflector and the second reflector, so that the first reflector receives the emitted light beam of the lens group reflected by the second reflector and projects the light beam.
  • switching between the welcome mode and the traveling mode is achieved by adjusting the positions of the first reflector and the second reflector through a rotating component. This increases the flexibility of the mirror adjustment mode.
  • the above-mentioned reflection unit includes a reflector, the reflector is used to receive the emitted light beam of the lens group, and the main optical axis of the lens group is aligned with the plane of the vehicle chassis. non-zero angle.
  • the projection position can be adjusted through a reflector.
  • the above-mentioned projection module further includes a baffle, the baffle is located between the reflection unit and the lens group; in the welcome mode, the baffle is used to block part of the Light.
  • the above-mentioned projection module further includes an expander mirror, and the light beam is projected out through the expander mirror.
  • the image is projected onto the ground within a second distance range from the vehicle for imaging, in front of the vehicle, or to the side of the vehicle for imaging.
  • the imaging design of the shared lens group can be simplified, and at the same time, it can adapt to more differentiated styling requirements of the entire lamp.
  • the above-mentioned light source device includes a light source and a projection element, and the light source includes: a light emitting diode (LED), a laser diode (LD), etc. at least one of.
  • Projection components include: at least one of liquid crystal display (LCD), liquid crystal on silicon (LCOS), digital micro-mirror device (DMD), etc.
  • the projection module when the light source device includes a light source and does not include a projection element, the projection module is mainly used for switching between the high beam and low beam of the vehicle. In the case where the light source device also includes a projection element, the projection module is also used for imaging outside the vehicle.
  • the above-mentioned rotating component adjusts the position of the reflection unit by receiving a control signal.
  • the above-mentioned rotating component realizes switching of the projection module between the low-beam mode and the high-beam mode by adjusting the position of the reflection unit, and the low-beam mode is the above-mentioned
  • the projection position of the projection module is a first distance away from the vehicle.
  • the projection position is a second distance away from the vehicle, and the first distance is smaller than the second distance.
  • the projection module can be switched between the low-beam mode and the high-beam mode through a control signal, thereby increasing the range of applicable scenarios for the projection module.
  • a second aspect of this application provides a vehicle.
  • the vehicle includes the projection module in any one of the optional modes of the first aspect and the first aspect.
  • the projection module is installed on the vehicle.
  • the above-mentioned vehicle further includes a processor, the processor is configured to send a control signal to the projection module, and the rotating component adjusts the position of the reflection unit according to the control signal, thereby Change the projection position of the beam.
  • 1 to 12A, 12B, 12C, and 12D are several structural schematic diagrams of projection modules provided by embodiments of the present application.
  • Figure 13 is a schematic diagram of a projection module installed on a vehicle according to an embodiment of the present application.
  • Figure 14 is a schematic diagram of a possible functional framework of the vehicle provided by the embodiment of the present application.
  • This application provides a projection module and a vehicle. By adding a reflection unit to the projection module and adjusting the position of the reflection unit by rotating components, the projection position of the light beam is changed. By adding a reflection unit to the projection module and adjusting the position of the reflection unit by rotating the component, the projection position of the light beam is changed. Can reduce space requirements. In addition, motor torque and drive current specifications can be reduced, power consumption and cost and carbon dioxide emissions can be reduced.
  • the motor pushes the edge to rotate around the fulcrum and the entire lighting unit pitches and tilts, and the light output adaptively changes with the undulations of ramps and road surfaces. Angle and position of the beam on the ground. That is, the bracket and lighting unit assembly are tilted up and down to achieve welcome imaging or front lighting.
  • the rotation process in the above solution requires a large space, and the boundaries of automobile headlights are often limited.
  • the projection module includes: a light source device, a lens group, a reflection unit, and a rotating component connected to the reflection unit.
  • the emitted light from the light source device passes through the lens group to form a light beam, and the light beam is projected to the outside of the vehicle (for example, the front or side of the vehicle).
  • the reflection unit is used to change the transmission direction of the light beam.
  • the rotating component is used to adjust the position of the reflection unit, thereby changing the projection position of the light beam.
  • the position of the reflection unit By adjusting the position of the reflection unit, projection is performed at different distances, replacing the motor rotating the entire module.
  • adjusting the position of the reflector requires less space, which can reduce the space occupied by the camera module.
  • the rotating part does not rotate the entire module, but projects the mirrors in the module. As a result, the motor torque, drive current specifications, power consumption and cost and carbon dioxide emissions are reduced.
  • the welcome mode compared to the solution of the motor rotating the entire module.
  • the projection module adjusts the position of the reflector by rotating components, so that the light beam can be projected to the ground closer to the vehicle for imaging.
  • the number of reflective units may be one, two, or more than two.
  • the vehicle used by the projection module can be used in welcome mode or traveling mode.
  • the reflection unit has the function of changing the projection position/propagation direction of the light beam.
  • the time period such as the welcome mode, the traveling mode
  • the position of the reflection unit is changed by the rotating member, thereby changing the beam projection position, it is within the protection scope of the present application.
  • the light source device may include at least one of the following: a light source and a projection element.
  • the light source includes at least one of a light emitting diode (LED), a laser diode (LD), and the like.
  • Projection components include: liquid crystal display (LCD), silicon-based liquid crystal (liquid crystal on At least one of silicon (LCOS), digital micro-mirror device (DMD), etc.
  • the projection module is mainly used for switching between the high beam and low beam of the vehicle. In the case where the light source device also includes a projection element, the projection module is also used for imaging outside the vehicle.
  • the light source device is used to output the original light beam to the lens group.
  • the lens group may include at least one of the following: a lens (for example, a convex lens, a concave lens, etc.), a reflector, a prism or a Fresnel mirror, etc.
  • the number of lenses in the lens group may be one or more, and the specific number is not limited here.
  • the reflector can be a curved surface with a certain curvature (for example, the radius of the curved surface is between 1,000 mm and 100,000 mm), a free-form surface, a spherical surface, etc. When the reflector has a curved surface, the optical power can be corrected to improve the projection effect.
  • the rotating components may include a rotating shaft and a driving motor/solenoid valve of the rotating shaft, etc.
  • the rotating component is used to control the reflector to adjust the projection angle of the light beam emitted by the lens group, thereby realizing the welcome mode or traveling mode of the vehicle.
  • the traveling mode can be understood as a scene in which the vehicle is traveling and requires long-distance projection or does not require close-range projection.
  • the projection module projects the light beam onto the ground within a second distance range from the vehicle for imaging.
  • the projection module projects the beam to the front of the vehicle for imaging.
  • the welcome mode can be understood as a scene when the vehicle is not moving, is moving but requires close-range projection, or does not require long-range projection.
  • the projection module projects the light beam onto the ground within a second distance range from the vehicle for imaging. The second distance range is greater than the first distance range.
  • the front projected to the front of the vehicle for imaging may include a wall or the ground.
  • the above-mentioned traveling mode can be understood as the high-beam mode of the projection module
  • the welcome mode can be understood as the low-beam mode of the projection module.
  • the rotating component can adjust the position of the reflective unit by receiving a control signal, thereby realizing the switching of the projection module between the low beam mode and the high beam mode.
  • the control signal can be generated by the vehicle based on environmental changes or user operations. of.
  • brackets or housings can be configured for the reflector, lens set, and light source device.
  • the projection modules provided by the embodiments of the present application are described below according to the number of reflection units and the mode of the vehicle.
  • FIG. 1 is a schematic structural diagram of the projection module provided by the embodiment of the present application.
  • the projection module includes: a light source device 101 , a lens group 102 , a reflector 103 , and a rotating component 104 connected to the reflector 103 .
  • the main optical axis of the lens group 102 forms a non-zero angle with the plane of the vehicle chassis.
  • the emitted light from the light source device 101 passes through the lens group 102 and forms a light beam.
  • the rotating component 104 is used to adjust the position of the reflector 103, thereby changing the projection position of the light beam. For example, the light beam is projected onto the ground within a first distance range from the vehicle for imaging. Or it can be understood that the rotating component 104 is used to adjust the position of the reflector 103 so that the reflector 103 outputs light beams in different transmission directions.
  • the chief ray of the light source device 101 coincides with the X-axis.
  • the optical axis of the lens group 102 coincides with the X-axis. Therefore, the chief ray of the light source device 101 coincides with the optical axis of the lens group 102 .
  • the rotating component 104 is used to control the reflector 103 to adjust the projection angle of the light beam emitted by the lens group 102 (or it can be understood as controlling the position of the reflection unit or adjusting the direction of the light beam emitted by the lens group 102), thereby realizing the welcome mode of the vehicle or Marching mode.
  • the reflector 103 receives the light beam emitted by the lens group 102, adjusts the optical path of the light beam to the first down-tilt optical path, and then projects it onto the ground within a first distance range from the vehicle for imaging.
  • a first distance range for example, the plane where the vehicle chassis is located and the first down-inclined light path
  • the angle is a first angle (for example, the first angle is between 9 degrees and 30 degrees).
  • the first distance range is 3 meters-6 meters. It can be understood that the first angle and the first distance range in Figure 1 are just examples. In actual applications, they can be set as needed, and are not specifically limited here.
  • the projection module may also include a baffle 105 , which is located between the reflector 103 and the lens group 102 (for example, the baffle 105 is located on the bracket where the reflector 103 is located, or where the lens group 12 is located. bracket, etc.); the baffle 105 is used to block part of the light.
  • the baffle 105 is used to prevent another part of the light from being projected out.
  • the projection module may also include an expanding mirror 106 .
  • the light beam emitted by the reflecting mirror 103 is projected onto the ground within a first distance range from the vehicle through the expanding mirror 106 for imaging.
  • the extender lens 106 may be a spherical lens with a certain curvature, a free-form lens (with a radius of curvature between 1000 mm and 100000 mm) or a plane lens.
  • the extender mirror 106 may or may not participate in the imaging calculation, and the details are not limited here.
  • FIG. 3 is another structural schematic diagram of the projection module provided by the embodiment of the present application.
  • the projection module includes: a light source device 101 , a lens group 102 , a reflector 103 , and a rotating component 104 connected to the reflector 103 .
  • the emitted light from the light source device 101 passes through the lens group 102 and forms a light beam.
  • the rotating component 104 is used to adjust the position of the reflector 103 (for example, the adjustment angle of the reflector 103), so that the light beam is projected onto the ground within a second distance range from the vehicle for imaging. It can be seen that the difference between Figure 1 and Figure 3 lies in the position of the reflector 103, or it can be understood as the angle between the mirror surface of the reflector 103 and the horizontal optical axis. The same parts will not be repeated here.
  • the reflector 103 receives the light beam emitted by the lens group 102 , adjusts the optical path of the light beam to the second downward-inclined optical path, and then projects it to a vehicle within a second distance range from the vehicle. Imaging on the ground.
  • the angle between the plane where the vehicle chassis is located (or a plane parallel to the plane where the vehicle chassis is located) and the second down-tilt optical path is a second angle (for example, the second angle is between 9 degrees and 30 degrees).
  • the second distance range is 8 meters-10 meters. It can be understood that the second angle and the second distance range in Figure 2 are just examples. In actual applications, they can be set as needed, and are not specifically limited here.
  • the first angle is larger than the second angle. That is, the adjustment angle of the projection module to the light beam in the welcome mode is greater than the adjustment angle of the light beam of the projection module in the traveling mode.
  • the projection module may also include a baffle 105 and/or an expansion mirror 106 .
  • the projection module can also include a baffle 105, which is located on the side where the reflector 103 is connected to the lens group 102; in the welcome mode, the baffle 105 is used to prevent the reflection mirror 103 from not reflecting Part of the beam is projected out.
  • the light beam emitted by the reflector 103 is projected onto the ground within a second distance range from the vehicle through the expander mirror 106 for imaging.
  • the description of the baffle 105 and the extender mirror 106 may refer to the description of FIG. 2 and will not be described again here.
  • the position of the baffle 105 shown in FIG. 4 can be further away from the ground than the position of the baffle 105 shown in FIG. 2 , or it can be understood that after the welcome mode is switched to the traveling mode, not only the reflector 103 has been adjusted, the position of the baffle 105 can also be adjusted accordingly.
  • one or more expanding mirrors 106 can be provided in the emission direction of the reflecting mirror 103.
  • the first angle is greater than the second angle.
  • the first distance range is smaller than the second distance range. That is, the projection distance of the projection module in the welcome mode is smaller than the projection distance of the projection module in the traveling mode.
  • the projection module shown in FIGS. 1 to 4 is in an upward tilt state as an example.
  • the projection model The group may also be in a downward tilt state, etc., and the details are not limited here.
  • a reflector 103 is added to the projection module, and the position of the reflector 103 is adjusted through the rotating component 104, so that the light beam is projected to a range closer to the vehicle (i.e., the first distance range) or farther. Imaging is performed on the ground in the far range (ie, the second distance range).
  • the position of the reflector 103 projection at different distances is performed, replacing the solution of the motor rotating the entire module.
  • adjusting the position of the reflector 103 requires less space and can reduce the space occupied by the camera module.
  • the rotating component 104 does not rotate the entire module, but projects the reflector in the module.
  • the projection module adjusts the position of the reflector 103 by rotating the component 104, so that the light beam can be projected onto the ground closer or further away from the vehicle for imaging.
  • the reflection unit includes one reflector.
  • the following describes the case where the reflection unit includes multiple reflectors.
  • the embodiment of the present application only takes the example of two reflectors as the plurality of reflectors. describe.
  • the reflective unit includes two reflectors when the vehicle is in welcome mode.
  • the upper reflector and the lower reflector are arranged according to the angle difference of 1/2 of the frame to meet the frame requirements of close projection.
  • the focal plane adjustment function can be realized when the projection scene is switched to achieve a better ground projection effect. It can be understood that arranging according to the angle difference of 1/2 of the frame is only a better solution. In practical applications, other arrangement methods can also be used, and there is no specific limit here.
  • the second reflecting mirror in the reflecting unit is connected to the rotating component.
  • the rotating component is used to adjust the position of the second reflector, so that the second reflector receives the light beam emitted from the lens group, reflects the light beam to the first reflector, and then projects it out.
  • FIG. 5 is another structural schematic diagram of a projection module provided by an embodiment of the present application.
  • the projection module includes: a light source device 101 , a lens group 102 , a first reflector 1031 , a second reflector 1032 , and a rotating component 104 connected to the second reflector 1032 .
  • the first reflecting mirror 1031 is fixedly disposed on one side of the lens group 102; the second reflecting mirror 1032 is connected to the rotating component 104, and the second reflecting mirror 1032 is disposed on the other side of the lens group 102 through the rotating component 104.
  • the rotating component 104 is used to adjust the position of the second reflector 1032 so that the second reflector 1032 receives the light beam emitted by the lens group 102 and reflects the light beam to the first reflector 1031 and then projects it out. .
  • the chief ray of the light source device 101 coincides with the X-axis.
  • the optical axis of the lens group 102 coincides with the X-axis. Therefore, the chief ray of the light source device 101 coincides with the optical axis of the lens group 102 .
  • the rotating component 104 is used to control the second reflector 1032 to adjust the projection angle of the light beam emitted by the lens group 102 (or to control the position of the second reflector 1032), so that the light emitted by the second reflector 1032 can pass through the first reflector.
  • 1031 is reflected to the ground for imaging, or projected onto the ground within a first distance range from the vehicle for imaging.
  • the angle between the plane where the vehicle chassis is located and the first downward-inclined optical path is the first angle
  • the first downward-inclined optical path is the optical path of the light beam emitted by the first reflector 1031 in the welcome mode.
  • the first distance range is 3 meters-6 meters. It can be understood that the first angle and the first distance range in Figure 5 are just examples. In actual applications, they can be set as needed, and are not specifically limited here.
  • the projection module may also include a baffle 105 and/or an extender mirror 106 .
  • the baffle 105 is located on the side where the first reflector 1031 is connected to the lens group 102 ; in the welcome mode, the baffle 105 is used to prevent the second reflector 1032 from being reflected to the first reflector 1031 Part of the light beam (or understood as the light that the lens group 102 will emit outside the boundary of the second reflector 1032) is projected out.
  • Extension mirror 106 is used to The light beam emitted by the first reflector 1031 is projected onto the ground within a first distance range from the vehicle for imaging.
  • the description of the baffle 105 and the extender mirror 106 may refer to the description in FIG. 2 or FIG. 4 , and will not be described again here.
  • the first reflector 1031 and the second reflector 1032 are added to the projection module, and the position of the second reflector 1032 is adjusted through the rotating component 104 so that the second reflector 1032 receives the lens group 102
  • the light beam is emitted and reflected to the first reflector 1031 for imaging on the ground. Or it may be projected onto the ground in a relatively close range to the vehicle (i.e., the first distance range) for imaging.
  • the position of the second reflector 1032 projection at different distances is performed, replacing the solution of the motor rotating the entire module.
  • adjusting the position of the second reflecting mirror 1032 requires less space and can reduce the space occupied by the camera module.
  • the rotating component 104 does not need to rotate the entire module, but projects the second reflector 1032 in the module. As a result, the motor torque, drive current specifications, power consumption and cost and carbon dioxide emissions are reduced.
  • the welcome mode compared to the solution of the motor rotating the entire module.
  • the projection module adjusts the position of the second reflector 1032 by rotating the component 104, so that the light beam can be projected to the ground closer to the vehicle for imaging.
  • FIG. 7 is another schematic structural diagram of a projection module provided by an embodiment of the present application.
  • the projection module includes: a light source device 101 , a lens group 102 , a first reflector 1031 , a second reflector 1032 , and a rotating component 104 connected to the second reflector 1032 .
  • the first reflecting mirror 1031 is fixedly disposed on one side of the lens group 102; the second reflecting mirror 1032 is connected to the rotating component 104, and the second reflecting mirror 1032 is disposed on the other side of the lens group 102 through the rotating component 104.
  • the rotating component 104 is used to adjust the position of the second reflector 1032 (for example, the adjustment angle of the second reflector 1032 in FIG.
  • the second reflector 1032 cannot receive the light beam emitted by the lens group 102 (Or it can be understood as causing the second reflector 1032 to leave the transmission path of the light beam), and the emitted light beam of the lens group 102 is projected out.
  • the projection module may also include a baffle 105 and/or an expansion mirror 106 .
  • the baffle 105 is located on the side where the first reflector 1031 is connected to the lens group 102; in the traveling mode, in order to reduce the blocking of the light beam emitted by the lens group 102 by the baffle 105, the position of the baffle 105 can be changed. Make adjustments (the position of the baffle 105 is further away from the ground than the position shown in Figure 6).
  • the extender mirror 106 is used to project the light beam emitted by the lens group 102 .
  • the description of the baffle 105 and the extender mirror 106 may refer to the description in FIG. 6 and will not be described again here.
  • the position of the baffle 105 shown in FIG. 8 can be further away from the ground than the position of the baffle 105 shown in FIG. 6 , or it can be understood that after the welcome mode is switched to the traveling mode, not only the second reflection
  • the position of the mirror 1032 is adjusted, and the position of the baffle 105 can also be adjusted accordingly.
  • the first reflector 1031 and the second reflector 1032 are added to the projection module, and the position of the second reflector 1032 is adjusted through the rotating component 104 so that the second reflector 1032 cannot receive the lens group.
  • the light beam emitted by the lens group 102 is projected out.
  • Front projection is performed by adjusting the position of the second reflector 1032, instead of the motor rotating the entire module.
  • adjusting the position of the second reflecting mirror 1032 requires less space and can reduce the space occupied by the camera module.
  • the rotating component 104 does not need to rotate the entire module, but projects the second reflector 1032 in the module. As a result, the motor torque, drive current specifications, power consumption and cost and carbon dioxide emissions are reduced.
  • the projection module adjusts the position of the second reflector 1032 by rotating the component 104, so that the light beam can be projected to a position farther away from the vehicle or in front of the vehicle for imaging.
  • the first reflecting mirror in the reflecting unit is connected to the rotating component.
  • the rotating component is used to adjust the position of the first reflector so that the first reflector receives the
  • the reflected lens group emits light beams and projects the light beams out.
  • FIG. 9 is another schematic structural diagram of a projection module provided by an embodiment of the present application.
  • the projection module includes: a light source device 101 , a lens group 102 , a first reflector 1031 , a second reflector 1032 , and a rotating component 104 connected to the first reflector 1031 .
  • the second reflector 1032 is fixedly disposed on one side of the lens group 102; the first reflector 1031 is connected to the rotating component 104, and the first reflector 1031 is disposed on the other side of the lens group 102 through the rotating component 104.
  • the rotating component 104 is specifically used To adjust the position of the first reflector 1031.
  • the rotating component 104 is used to adjust the position of the first reflector 1031 to receive the light beam reflected by the second reflector 1032 and project the light beam onto the ground within a first distance range from the vehicle. Imaging.
  • the chief ray of the light source device 101 coincides with the X-axis.
  • the optical axis of the lens group 102 coincides with the X-axis. Therefore, the chief ray of the light source device 101 coincides with the optical axis of the lens group 102 .
  • the light beam emitted by the lens group 102 is projected to the first reflector 1031 through the second reflector 1032, so that the first reflector 1031 projects the light beam to the ground for imaging.
  • the rotating component 104 is used to adjust the position of the first reflector 1031 (or to adjust the projection angle of the light beam emitted by the first reflector 1031), so that the light emitted by the second reflector 1032 can be reflected to the ground through the first reflector 1031.
  • the angle between the plane where the vehicle chassis is located and the first downward-inclined optical path is the first angle
  • the first downward-inclined optical path is the optical path of the light beam emitted by the first reflector 1031 in the welcome mode.
  • the first distance range is 3 meters-6 meters. It can be understood that the first angle and the first distance range in Figure 9 are just examples. In actual applications, they can be set as needed, and are not specifically limited here.
  • the projection module may also include a baffle 105 and/or an extender mirror 106 .
  • the baffle 105 is located on the side where the first reflector 1031 is connected to the lens group 102 ; in the welcome mode, the baffle 105 is used to prevent the second reflector 1032 from being reflected to the first reflector 1031 Part of the light beam (or understood as the light that the lens group 102 will emit outside the boundary of the second reflector 1032) is projected out.
  • the expander mirror 106 is used to project the light beam emitted by the first reflector 1031 onto the ground within a first distance range from the vehicle for imaging.
  • the description of the baffle 105 and the extender mirror 106 may refer to the previous description, and will not be described again here.
  • a first reflector 1031 and a second reflector 1032 are added to the projection module, and the position of the first reflector 1031 is adjusted through the rotating component 104, so that the light emitted by the second reflector 1032 can pass through
  • the first reflector 1031 reflects to the ground for imaging, or projects to the ground that is relatively close to the vehicle (ie, the first distance range) for imaging.
  • the position of the first reflector 1031 By adjusting the position of the first reflector 1031, projection at different distances is performed, replacing the solution of the motor rotating the entire module.
  • adjusting the position of the first reflector 1031 requires less space and can reduce the space occupied by the camera module.
  • the rotating component 104 does not need to rotate the entire module, but projects the first reflector 1031 in the module. As a result, the motor torque, drive current specifications, power consumption and cost and carbon dioxide emissions are reduced.
  • the welcome mode compared to the solution of the motor rotating the entire module.
  • the projection module adjusts the position of the first reflector 1031 by rotating the component 104, so that the light beam can be projected to the ground closer to the vehicle for imaging.
  • FIG. 11 is another schematic structural diagram of a projection module provided by an embodiment of the present application.
  • the projection module includes: a light source device 101, a lens group 102, a first reflector 1031, a second reflector 1032, and a rotating component 104 connected to the first reflector 1031.
  • the second reflector 1032 is fixedly disposed on one side of the lens group 102; the first reflector 1031 is connected to the rotating component 104, and the first reflector 1031 is disposed on the other side of the lens group 102 through the rotating component 104.
  • the rotating component 104 is specifically used To adjust the position of the first reflector 1031. In the welcome mode, the rotating component 104 is used to adjust the first reaction
  • the mirror 1031 is positioned to receive the light beam reflected by the second reflector 1032 and project the light beam onto the ground or in front of the vehicle within a second distance range for imaging.
  • the chief ray of the light source device 101 coincides with the X-axis.
  • the optical axis of the lens group 102 coincides with the X-axis. Therefore, the chief ray of the light source device 101 coincides with the optical axis of the lens group 102 .
  • the light beam emitted by the lens group 102 is projected to the first reflecting mirror 1031 through the second reflecting mirror 1032, so that the first reflecting mirror 1031 projects the light beam to the ground for imaging.
  • the rotating component 104 is used to adjust the position of the first reflector 1031 (or to adjust the projection angle of the light beam emitted by the first reflector 1031), so that the light emitted by the second reflector 1032 can be projected to and from the first reflector 1031.
  • the vehicle is imaged on the ground or in front of the second distance range.
  • the angle between the plane where the vehicle chassis is located and the second downward-inclined optical path is the second angle
  • the second downward-inclined optical path is the optical path of the light beam emitted by the first reflector 1031 in the traveling mode.
  • the second distance range is 8 meters-50 meters. It can be understood that the second angle and the second distance range in Figure 11 are just examples. In actual applications, they can be set as needed, and are not specifically limited here.
  • the projection module may also include a baffle 105 and/or an expansion mirror 106 .
  • the baffle 105 is located on the side where the first reflector 1031 is connected to the lens group 102; in the traveling mode, in order to reduce the blocking of the light beam emitted by the lens group 102 by the baffle 105, the position of the baffle 105 can be changed. Make adjustments (the position of the baffle 105 is further away from the ground than the position shown in Figure 9).
  • the extender mirror 106 is used to project the light beam emitted by the lens group 102 onto the ground or in front of the vehicle within a second distance range for imaging.
  • the description of the baffle 105 and the extender mirror 106 may refer to the previous description, and will not be described again here.
  • the position of the baffle 105 shown in Figure 12A can be further away from the ground than the position of the baffle 105 shown in Figure 9, or it can be understood that after the welcome mode is switched to the traveling mode, not only the first reflection
  • the position of the mirror 1031 is adjusted, and the position of the baffle 105 can also be adjusted accordingly.
  • the light beam reflected by the second reflector 1032 is received. And the light beam is projected onto the ground or in front of the vehicle within a second distance range for imaging.
  • Front projection is performed by adjusting the position of the first reflector 1031 instead of the motor rotating the entire module.
  • adjusting the position of the first reflector 1031 requires less space and can reduce the space occupied by the camera module.
  • the rotating component 104 does not need to rotate the entire module, but projects the first reflector 1031 in the module.
  • the projection module adjusts the position of the first reflector 1031 by rotating the component 104, so that the light beam can be projected to a position farther away from the vehicle or in front of the vehicle for imaging.
  • connection between the two aforementioned mirrors and the rotating component is just an example. In actual applications, other forms can also be used.
  • the first reflecting mirror 1031 and the second reflecting mirror 1032 are respectively connected to the rotating component.
  • the rotating component is used to control the positions of the first reflector 1031 and the second reflector 1032 to achieve close range projection or long range projection.
  • the connection between the reflector and the rotating part is not limited here.
  • the first reflecting mirror in the reflecting unit is connected to the first rotating component
  • the second reflecting mirror in the reflecting unit is connected to the second rotating component
  • multiple reflectors are respectively connected to the rotating component. That is, two motors control the first rotating component and the second rotating component respectively, the first reflecting mirror is connected to the first rotating component, and the first reflecting mirror is arranged on one side of the lens group through the first rotating component.
  • the second reflecting mirror is connected to the second rotating component, and the second reflecting mirror is arranged on the mirror through the second rotating component. The other side of the headset.
  • FIG. 12B is another schematic structural diagram of a projection module provided by an embodiment of the present application.
  • the projection module includes: a light source device 101, a lens group 102, a first reflecting mirror 1031, a second reflecting mirror 1032, a first rotating component 104 connected to the first reflecting mirror 1031, a baffle 105 and a
  • the second reflector 1032 is connected to the rotating component 107 .
  • the first rotating component 104 is connected to the baffle 105
  • the first reflecting mirror 1031 is disposed on one side of the lens group 102 .
  • the second reflecting mirror 1032 is connected to the second rotating component 107 , and the second reflecting mirror 1032 is disposed on the other side of the lens group 102 through the second rotating component 107 .
  • the first rotating component 104 is used to adjust the position of the baffle 105 and the first reflector 1031.
  • the baffle 105 moves upward, thereby reducing the impact of the baffle 105 on the projected light of the lens group 103. Occlusion.
  • the first reflecting mirror 1031 is adjusted to a position where it cannot receive the reflected light from the second reflecting mirror 1032 .
  • the second rotating component 107 is used to adjust the position of the second reflector 1032 (for example, the adjustment angle of the second reflector 1032 in FIG.
  • the second reflector 1032 cannot receive the light beam emitted by the lens group 102 (or understand In order to make the second reflector 1032 leave the transmission path of the light beam), thereby causing the light beam emitted from the lens group 102 to be projected out.
  • the first rotating component 104 is used to adjust the position of the baffle 105 and the first reflector 1031.
  • the baffle 105 moves downward to prevent the light reflected by the lens group 102 from not being reflected by the reflection unit. go out.
  • the first reflecting mirror 1031 is adjusted to a position that can receive the reflected light from the second reflecting mirror 1032 .
  • the second rotating component 107 is used to adjust the position of the second reflecting mirror 1032 so that the second reflecting mirror 1032 receives the light beam emitted by the lens group 102 and projects the light beam to the ground through the first reflecting mirror 1031 .
  • the projection module may also include an extender mirror 106 .
  • an extender mirror 106 For the description of the extender mirror 106, reference may be made to the previous description, and details will not be described again here.
  • the first rotating component 104 may include a first rotating shaft gear and a first motor gear, and the first rotating shaft gear meshes with the first motor gear.
  • the first shaft gear is connected to the first reflector 1031 and the baffle 105 respectively.
  • the motor corresponding to the first motor gear drives the first shaft gear through the first motor gear to drive the first reflector 1031 and the baffle 105 sports.
  • the second rotating component 107 may include a second rotating shaft gear and a second motor gear, and the second rotating shaft gear meshes with the second motor gear.
  • the second shaft gear is connected to the second reflector 1032. After receiving the signal, the motor corresponding to the second motor gear drives the second shaft gear through the second motor gear to drive the second reflector 1032 to rotate.
  • first rotating shaft gear and the second rotating shaft gear have different parameters (for example, including at least one of the following: gear module, number of teeth, etc.), so the angles at which the two gears rotate to the final state are different.
  • the second reflector 1032 can also be used to project images on distant roads (for example, a dynamic light carpet of 8 to 50 meters) while driving.
  • the first reflector 1031 is fixed at a fixed position or is driven by the first rotating component 104 to rotate to a preset position.
  • the two motors receive signals from the vehicle end, they drive the baffle 105 and the second motor respectively at the same time.
  • the reflector 1032 flips upward to a different state. Different states correspond to near-field welcome and far-field projection (real-time projection from 8 meters to 50 meters away from the road, such as dynamic light blankets, etc.).
  • the projection module includes a baffle
  • one motor can also be used to control the baffle and the second reflector, as follows. Describe each.
  • the motor simultaneously controls the positions of the baffle and the second reflector through the rack pair.
  • This situation can also be understood as simultaneously connecting the first rotating component and the second rotating component through a rack pair. and then The rack pair can be controlled by a motor to realize the simultaneous rotation of the first rotating component and the second rotating component.
  • the first rotating component is connected to the baffle.
  • the first reflector is arranged on one side of the lens group.
  • the second reflector passes through the second
  • the rotating part is provided on the other side of the lens group. That is, compared with the projection module of Figures 1 to 11, the structure of the projection film set further includes a rack pair controlled by a motor, and the rack pair is connected to the first rotating component and the second rotating component respectively.
  • FIG. 12C is another schematic structural diagram of a projection module provided by an embodiment of the present application.
  • the projection module includes: a light source device 101, a lens group 102, a first reflector 1031, a second reflector 1032, a first rotating component 104, a baffle 105 connected to the first rotating component 104, and
  • the second reflector 1032 is connected to the rotating component 107 and the rack pair 108 .
  • the rack pair 108 is connected to the first rotating component 104 and the second rotating component 107 respectively.
  • the first reflecting mirror 1031 is provided on one side of the lens group 102 .
  • the second reflecting mirror 1032 is connected to the second rotating component 107 , and the second reflecting mirror 1032 is disposed on the other side of the lens group 102 through the second rotating component 107 .
  • the first rotating component 104 is used to adjust the position of the baffle 105 so that the baffle 105 moves upward, thereby reducing the blocking of the light projected by the lens group 103 by the baffle 105 .
  • the second rotating component 107 is used to adjust the position of the second reflector 1032 so that the second reflector 1032 cannot receive the light beam emitted by the lens group 102 (or it can be understood as causing the second reflector 1032 to leave the transmission path of the light beam), and then The emitted light beam of the lens group 102 is projected out.
  • the first rotating component 104 is used to adjust the position of the baffle 105 so that the baffle 105 moves downward to prevent the light reflected by the lens group 102 from being reflected by the reflection unit.
  • the second rotating component 107 is used to adjust the position of the second reflecting mirror 1032 so that the second reflecting mirror 1032 receives the light beam emitted by the lens group 102 and projects the light beam to the ground through the first reflecting mirror 1031 .
  • the first rotating component 104 can also be used to adjust the position of the first reflector 1031 to meet the above-mentioned traveling mode and welcome mode.
  • the projection module may also include an extender mirror 106 .
  • an extender mirror 106 For the description of the extender mirror 106, reference may be made to the previous description, and details will not be described again here.
  • the first rotating component 104 may include a first rotating shaft gear and a first motor gear, and the first rotating shaft gear meshes with the first motor gear.
  • the first rotating shaft gear is connected with the baffle 105 .
  • the second rotating component 107 may include a second rotating shaft gear and a second motor gear, and the second rotating shaft gear meshes with the second motor gear.
  • the second rotating shaft gear is connected to the second reflector 1032 .
  • the first motor gear and the second motor gear correspond to one motor (or it can be understood as using one motor to simultaneously control the first motor gear and the second motor gear through a rack pair). After receiving the signal, the motor can not only drive the first shaft gear through the first motor gear to drive the first reflector 1031 and the baffle 105 to move.
  • the second motor gear can also be used to drive the second shaft gear to drive the second reflector 1032 to rotate.
  • first rotating shaft gear and the second rotating shaft gear have different parameters (for example, including at least one of the following: gear module, number of teeth, etc.), so the angles at which the two gears driven by one motor rotate to the final state are different. Therefore, the positions of the baffle and the second reflector can be adjusted at the same time.
  • near-field greetings for example, 3 meters to 6 meters
  • dynamic light blankets on farther roads when driving for example, 8 meters to 50 meters). etc.
  • the first reflector 1031 is fixed at a fixed position or driven by the first rotating component 104 to rotate to a preset position.
  • a motor receives a signal from the vehicle end, it drives the baffle 105 and the baffle 105 simultaneously through the rack pair.
  • the second reflector 1032 moves. Since the parameters of the corresponding gears of the baffle 105 and the second reflector 1032 are different, the angles at which the two gears driven by one motor rotate to the final state are different. Therefore, the positions of the baffle and the second reflector can be adjusted at the same time.
  • near-field greetings for example, 3 meters to 6 meters
  • it can also achieve dynamic light blankets on farther roads when driving (for example, 8 meters to 50 meters). etc.) screen projection.
  • the motor simultaneously controls the positions of the baffle and the second reflector through multiple sets of gears.
  • the first rotating component is connected through one end of the multiple sets of gears
  • the second rotating component is connected through the other ends of the multiple sets of gears.
  • one motor can be used to control multiple sets of gears to achieve simultaneous rotation of the first rotating part and the second rotating part.
  • the first rotating part is connected to the baffle
  • the first reflecting mirror is arranged on one side of the lens group
  • the second reflecting mirror passes through the first rotating part.
  • Two rotating parts are arranged on the other side of the lens group.
  • the projection film set further includes a rack pair controlled by a motor, and the rack pair is connected to the first rotating component and the second rotating component respectively.
  • Figure 12D is another structural schematic diagram of a projection module provided by an embodiment of the present application.
  • the projection module includes: a light source device 101, a lens group 102, a first reflector 1031, a second reflector 1032, a first rotating component 104, a baffle 105 connected to the first rotating component 104, and
  • the second reflecting mirror 1032 is connected to the rotating component 107 and multiple sets of gears 109 .
  • the plurality of sets of gears 109 are connected to the first rotating component 104 and the second rotating component 107 respectively.
  • the first reflecting mirror 1031 is provided on one side of the lens group 102 .
  • the second reflecting mirror 1032 is connected to the second rotating component 107 , and the second reflecting mirror 1032 is disposed on the other side of the lens group 102 through the second rotating component 107 .
  • the traveling mode and the welcoming mode please refer to the aforementioned first description, and will not be described again here.
  • the specific difference from the first case mainly lies in the connection object of a motor. That is, the first situation is that a motor controls the first rotating component and the second rotating component simultaneously through the rack pair. This situation is that a motor controls the first rotating component and the second rotating component simultaneously through multiple sets of gears.
  • the first rotating component 104 can also be used to adjust the position of the first reflector 1031 to meet the above-mentioned traveling mode and welcome mode.
  • the projection module may also include an extender mirror 106 .
  • an extender mirror 106 For the description of the extender mirror 106, reference may be made to the previous description, and details will not be described again here.
  • the first rotating component 104 may include a first rotating shaft gear and a first motor gear, and the first rotating shaft gear meshes with the first motor gear.
  • the first rotating shaft gear is connected with the baffle 105 .
  • the second rotating component 107 may include a second rotating shaft gear and a second motor gear, and the second rotating shaft gear meshes with the second motor gear.
  • the second rotating shaft gear is connected to the second reflector 1032 .
  • the first motor gear and the second motor gear correspond to one motor (or it can be understood as using one motor to simultaneously control the first motor gear and the second motor gear through multiple sets of gears). After receiving the signal, the motor can not only drive the first shaft gear through the first motor gear to drive the first reflector 1031 and the baffle 105 to move.
  • the second motor gear may also be used to drive the second shaft gear to drive the second reflector 1032 to rotate.
  • the parameters of the first rotating shaft gear and the second rotating shaft gear are different, so the two gears driven by one motor rotate to the final state.
  • the angles vary. Therefore, the positions of the baffle and the second reflector can be adjusted at the same time.
  • near-field greetings for example, 3 meters to 6 meters
  • it can also achieve dynamic light blankets on farther roads when driving (for example, 8 meters to 50 meters). etc.) screen projection. That is, the parameters of the first rotating component 104 and the parameters of the second rotating component 107 in FIG. 12D are different.
  • the parameters of the gears meshing with the first rotating shaft gear among the above multiple sets of gears and the gear meshing with the second rotating shaft gear among the multiple sets of gears are different, so the two gears driven by one motor rotate to The angle of the end state varies. Therefore, the positions of the baffle and the second reflector can be adjusted at the same time.
  • near-field greetings for example, 3 meters to 6 meters
  • dynamic light blankets on farther roads when driving for example, 8 meters to 50 meters). etc.
  • the first reflector 1031 is fixed at a fixed position or is driven by the first rotating component 104 to rotate to a preset position.
  • a motor receives a signal from the vehicle, it simultaneously drives the baffle 105 and the baffle 105 through multiple sets of gears.
  • the second reflector 1032 moves. Since the parameters of the corresponding gears of the baffle 105 and the second reflector 1032 are different, the angles at which the two gears driven by one motor rotate to the final state are different.
  • the positions of the baffle and the second reflector can be adjusted at the same time, and in addition to achieving near-field welcome (for example, 3 meters to 6 meters), real-time projection of 8 meters to 50 meters away from the road surface while driving can also be achieved as needed.
  • near-field welcome for example, 3 meters to 6 meters
  • real-time projection of 8 meters to 50 meters away from the road surface while driving can also be achieved as needed.
  • dynamic light blanket etc.
  • first rotating component and the second rotating component can also be connected simultaneously through other components (such as gear pairs). Specifically, There are no limitations here.
  • the above description is only based on the example that the first reflector is fixed and the second reflector is rotatable. In practical applications, the second reflector can also be fixed and the first reflector is rotatable. It is also possible that both the first reflecting mirror and the second reflecting mirror are rotatable, etc., and the details are not limited here.
  • An embodiment of the present application also provides a vehicle equipped with any one of the aforementioned projection modules or projection systems.
  • the projection module or projection system includes: a light source device, a lens group, a reflection unit, and a rotating component connected to the reflection unit.
  • the emitted light from the light source device forms a light beam after passing through the lens group.
  • the rotating component is used to adjust the position of the reflection unit, thereby changing the projection position of the light beam.
  • the number of reflective units may be one, two, or more than two.
  • the vehicle used by the projection module can be used in welcome mode or traveling mode.
  • FIG. 13 is a schematic diagram of a projection module installed on a vehicle according to an embodiment of the present application. Or it can be understood that the projection module is a part of the vehicle headlight.
  • the vehicle can achieve close-range (for example, 1 to 6 meters) projection, long-distance (for example, 6 to 50 meters) projection or front projection.
  • the above-mentioned vehicle further includes a processor, the processor is used to send a control signal to the projection module, and the rotating component adjusts the position of the reflection unit according to the control signal, thereby changing the projection position of the light beam.
  • the processor may be at least one of a processor/controller such as an electronic control unit (ECU) and a vehicle controller 140 (body control module, BCM).
  • vehicles may be cars, trucks, motorcycles, buses, boats, airplanes, helicopters, lawn mowers, recreational vehicles, playground vehicles, construction equipment, trolleys, golf carts, trains, and handcarts etc.
  • the projection module can be installed on the lighting system of the vehicle (such as car headlights, taillights, brake lights, etc.). It can be used for high and low beam switching and welcome projection.
  • Figure 14 is a schematic diagram of a possible functional framework of the vehicle provided by the embodiment of this application.
  • the functional framework of the vehicle may include various subsystems, such as the control system 15 in the figure, the sensor system 12, one or more peripheral devices 16 (one is shown as an example in the figure), a power supply 18.
  • Computer system 20 may be Display system 32.
  • the vehicle may also include other functional systems, such as an engine system that provides power for the vehicle, etc., which is not limited in this application.
  • the sensor system 12 may include several detection devices, which can sense the measured information and convert the sensed information into electrical signals or other required forms of information output according to certain rules.
  • these detection devices may include a global positioning system (GPS), vehicle speed sensor, inertial measurement unit (IMU), radar unit, laser rangefinder, camera device, wheel speed sensor, Steering sensors, gear sensors, or other components used for automatic detection, etc. are not limited in this application.
  • the control system 15 may include several elements, such as the illustrated steering unit, braking unit, lighting system, automatic driving system, map navigation system, network time synchronization system and obstacle avoidance system.
  • the control system 15 may also include components such as a throttle processor and an engine processor for controlling the driving speed of the vehicle, which are not limited in this application.
  • Peripheral device 16 may include several elements, such as a communication system, a touch screen, a user interface, a microphone and a speaker as shown, among others.
  • the communication system is used to realize network communication between vehicles and other devices other than vehicles.
  • the communication system can use wireless communication technology or wired communication technology to realize network communication between vehicles and other devices.
  • the wired communication technology may refer to communication between vehicles and other devices through network cables or optical fibers.
  • the power source 18 represents a system that provides power or energy to the vehicle, which may include, but is not limited to, rechargeable lithium batteries or lead-acid batteries, etc. In practical applications, one or more battery components in the power supply are used to provide electric energy or energy for starting the vehicle. The type and material of the power supply are not limited in this application.
  • the computer system 20 may include one or more processors 2001 (one processor is shown as an example) and a memory 2002 (which may also be referred to as a storage device).
  • the memory 2002 may also be inside the computer system 20 or outside the computer system 20 , for example, as a cache in a vehicle, etc., which is not limited by this application. in,
  • Processor 2001 may include one or more general-purpose processors, such as a graphics processing unit (GPU).
  • the processor 2001 may be used to run relevant programs or instructions corresponding to the programs stored in the memory 2002 to implement corresponding functions of the vehicle.
  • Memory 2002 may include volatile memory (volatile memory), such as RAM; memory may also include non-volatile memory (non-volatile memory), such as ROM, flash memory (flash memory) or solid state drive (solid state). drives, SSD); the memory 2002 may also include a combination of the above types of memory.
  • the memory 2002 can be used to store a set of program codes or instructions corresponding to the program codes, so that the processor 2001 can call the program codes or instructions stored in the memory 2002 to implement corresponding functions of the vehicle. This function includes but is not limited to some or all of the functions in the vehicle function framework diagram shown in Figure 14. In this application, a set of program codes for vehicle control can be stored in the memory 2002, and the processor 2001 calls the program codes to control the safe driving of the vehicle. How to achieve safe driving of the vehicle will be described in detail below in this application.
  • the memory 2002 may also store information such as road maps, driving routes, sensor data, and the like.
  • the computer system 20 can be combined with other elements in the vehicle functional framework diagram, such as sensors in the sensor system, GPS, etc., to implement vehicle-related functions.
  • the computer system 20 can control the driving direction or driving speed of the vehicle based on data input from the sensor system 12 , which is not limited in this application.
  • the display system 32 may include several components, such as a processor and any one of the projection modules described in FIGS. 1 to 13 .
  • the processor is used to generate images according to user instructions and send the image content to the projection module.
  • the projection position of the light beam is changed. pass Adjust the position of the reflector for projection, replacing the motor to rotate the entire module.
  • adjusting the position of the reflector requires less space, which can reduce the space occupied by the camera module.
  • by reducing the motor torque drive current specifications, power consumption and cost and carbon dioxide emissions are reduced.
  • the light beam can be projected to the ground closer to the projection module for imaging.
  • the functions of some components in the display system 32 can also be implemented by other subsystems of the vehicle.
  • the processor can also be a component in the control system 15 .
  • the projection module can also be located in the lighting system to implement high and low beam lighting and/or projection of the vehicle.
  • Figure 14 of this application includes four subsystems.
  • the sensor system 12, the control system 15, the computer system 20 and the display system 32 are only examples and do not constitute a limitation.
  • vehicles can combine several components in the vehicle according to different functions to obtain subsystems with corresponding different functions.
  • the vehicle may include more or fewer systems or components, which is not limited by this application.

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Abstract

一种投影模组，可以应用于交通工具的照明系统、其他空间受限的投影场景等。投影模组包括光源器件（101）、镜头组（102）、反射单元（103）以及与反射单元（103）相连接的转动部件（104）；光源器件（101）的出射光经过镜头组（102）后形成光束，光束被投射到交通工具的外面；反射单元（103）用于改变光束的传输方向，转动部件（104）用于调整反射单元（103）的位置，从而改变光束的投射位置。通过引入反射单元（103）的位置调整实现投影模组在交通工具外面的近距离/远距离成像。

Description

一种投影模组及交通工具
本申请要求于2022年9月9日提交中国国家知识产权局、申请号为202222401752.1、申请名称为“一种投影模组及交通工具”的中国专利申请的优先权，以及要求于2023年2月15日提交中国国家知识产权局、申请号为202310140825.2、申请名称为“一种投影模组及交通工具”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示领域，尤其涉及一种投影模组及交通工具。
背景技术
随着汽车工业的发展，汽车大灯的照明单元由最初的固定位置变为可以手动调节俯仰高低，进而演变为借助底盘悬架上的位置传感器感应车身的俯仰姿态。
目前，照明单元和支架相连，支架水平方向设置转轴，配合在大灯壳体的槽内，支架下边缘和电机圆头以球窝固定。位置传感器的输出信号发送给电子控制单元(electronic control unit，ECU)，进而驱动照明单元连接的电机，由电机推动边缘绕支点转动整个照明单元俯仰倾斜，随着坡道和路面起伏自适应改变出光角度和光束在地面的位置。即通过支架和照明单元总成上下俯仰，以实现迎宾成像或前方照明。
然而，上述方案中的转动过程需要较大的空间，而汽车大灯的边界往往受限。
发明内容
本申请提供了一种投影模组及交通工具，通过在投影模组中增加反射单元，并通过转动部件调整反射单元的位置，从而改变光束的投射位置。可以减少空间的要求。此外，可以降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。
本申请实施例第一方面提供了一种投影模组，可以应用于交通工具的照明系统、其他空间受限的投影场景等。该投影模组包括：光源器件、镜头组、反射单元以及与反射单元相连接的转动部件；光源器件的出射光经过镜头组后形成光束，光束被投射到交通工具的外面；反射单元用于改变光束的传输方向，转动部件用于调整反射单元的位置，从而改变所述光束的投射位置。
本申请实施例中，通过在投影模组中增加反射镜，并通过转动部件调整反射镜的位置，从而改变光束的投射位置。例如，将光束投射至与交通工具相距较近范围(即第一距离范围)或较远范围(即第二距离范围)的地面上进行成像。通过调整反射镜位置进行不同距离的投影，替代电机旋转整个模组的方案。一方面，反射镜的位置调整对于空间的要求较小，可以减少摄像模组所占的空间。可以减少摄像模组所占的空间。另一方面，转动部件不用转动整个模组，而是投影模组中的反射镜。从而降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。另一方面，在迎宾模式下，相较于电机旋转整个模组的方案。投影模组 通过转动部件调整反射镜的位置，可以使得光束投射至相距交通工具距离更近的地面上进行成像。
可选地，在第一方面的一种可能的实现方式中，在交通工具的迎宾模式下，转动部件用于调整反射单元的位置，从而改变光束的投射位置包括：转动部件用于调整反射单元的位置，以使得反射单元接收到光束，并将镜头组射出光束的方向进行调整。例如将光束的光路调整为第一下倾光路后，投射至与交通工具相距第一距离范围(例如，1米至6米)的地面上进行成像。
该种可能的实现方式中，在迎宾模式下，相较于电机旋转整个模组的方案。投影模组通过转动部件调整反射镜的位置，减少转动部件的电机扭矩，可以使得光束投射至相距交通工具距离更近的地面上进行成像。
可选地，在第一方面的一种可能的实现方式中，上述光束经过反射单元调整后的传播方向与交通工具的底盘所在平面之间的夹角为9度至30度之间。
该种可能的实现方式中，可以通过调整位置实现传播方向的灵活调整。
可选地，在第一方面的一种可能的实现方式中，交通工具的行进模式下，转动部件用于调整反射单元的位置，以使得反射单元离开或脱离光束的传输路径。
该种可能的实现方式中，在行进模式下，相较于电机旋转整个模组的方案。投影模组通过转动部件调整反射镜的位置，减少转动部件的电机扭矩，可以使得光束投射出去。
可选地，在第一方面的一种可能的实现方式中，在交通工具的行进模式下，转动部件用于调整反射单元的位置，从而改变光束的投射位置包括：转动部件用于调整反射单元的位置，以使得反射单元接收到光束，并将镜头组射出光束的方向进行调整。例如将镜头组射出光束的光路调整为第二下倾光路后，投射至与交通工具相距第二距离范围(例如，8米至50米)的地面上进行成像，第二距离范围的最小值大于第一距离范围的最大值，第一下倾光路与交通工具底盘所在平面的夹角大于第二下倾光路与交通工具底盘所在平面的夹角。
该种可能的实现方式中，在行进模式下，相较于电机旋转整个模组的方案。投影模组通过转动部件调整反射镜的位置，减少转动部件的电机扭矩，可以使得光束投射至相距交通工具距离更远的地面上进行成像。
应理解，转动部件应具备将反射镜调整到上述不同的位置，从而使光束的投射位置改变的功能(例如，1到6米，或8到50米等)。
可选地，在第一方面的一种可能的实现方式中，上述的反射单元包括第一反射镜与第二反射镜，转动部件用于调整第二反射镜的位置，使得第二反射镜接收到镜头组的射出光束，并将光束反射至第一反射镜后投射出去。
该种可能的实现方式中，相当于固定第一反射镜，通过转动部件调整第二反射镜来实现迎宾模式与行进模式之间的切换。进而增加反射镜调整模式的灵活性。
可选地，在第一方面的一种可能的实现方式中，上述的反射单元包括第一反射镜与第二反射镜，转动部件用于调整第一反射镜的位置，使得第一反射镜接收到第二反射镜反射的镜头组的射出光束，并将光束投射出去。
该种可能的实现方式中，相当于固定第二反射镜，通过转动部件调整第一反射镜来实现迎宾模式与行进模式之间的切换。进而增加反射镜调整模式的灵活性。
可选地，在第一方面的一种可能的实现方式中，上述的反射单元包括第一反射镜与第二 反射镜，转动部件用于调整第一反射镜与第二反射镜的位置，使得第一反射镜接收到第二反射镜反射的镜头组的射出光束，并将光束投射出去。
该种可能的实现方式中，通过转动部件调整第一反射镜与第二反射镜的位置来实现迎宾模式与行进模式之间的切换。进而增加反射镜调整模式的灵活性。
可选地，在第一方面的一种可能的实现方式中，上述的反射单元包括一个反射镜，反射镜用于接收镜头组的射出光束，镜头组的主光轴与交通工具底盘所在平面呈非零角度。
该种可能的实现方式中，在镜头组的主光轴与交通工具底盘所述平面不平行的情况下，可以通过一个反射镜实现投射位置的调整。
可选地，在第一方面的一种可能的实现方式中，上述的投影模组还包括挡板，挡板位于反射单元与镜头组之间；在迎宾模式下，挡板用于阻挡部分光。
该种可能的实现方式中，通过引入挡板，可以减少反射镜未反射完全带来的漏光。在迎宾模式下，可以减少或避免除了地面的投影外其它不需要的投影。
可选地，在第一方面的一种可能的实现方式中，上述的投影模组还包括拓展镜，光束经过拓展镜投射出去。例如，投射至与交通工具相距第二距离范围的地面上进行成像、交通工具前方、交通工具侧方进行成像。
该种可能的实现方式中，通过引入拓展镜，可以简化分担镜头组的成像设计，同时适配整灯更多差异化的造型需求。
可选地，在第一方面的一种可能的实现方式中，上述的光源器件包括光源与投影元件，光源包括：发光二极管(light emitting diode，LED)和激光二极管(laser diode，LD)等中的至少一个。投影元件包括：液晶显示器(liquid crystal display，LCD)、硅基液晶(liquid crystal on silicon，LCOS)、数字微镜器件(digital micro-mirror device，DMD)等中的至少一个。
该种可能的实现方式中，在光源器件包括光源，不包括投影元件的情况下，投影模组主要用于交通工具的远光灯与近光灯之间的切换。在光源器件还包括投影元件的情况下，该投影模组还用于在交通工具外面进行成像。
可选地，在第一方面的一种可能的实现方式中，上述的转动部件通过接收控制信号来调整反射单元的位置。
可选地，在第一方面的一种可能的实现方式中，上述的转动部件通过调整反射单元的位置实现投影模组在近光模式与远光模式之间的切换，近光模式为所述投影模组的投射位置与交通工具相距第一距离，近光模式为投射位置与交通工具相距第二距离，第一距离小于第二距离。
该种可能的实现方式中，可以通过控制信号实现投影模组在近光模式与远光模式之间的切换，提升投影模组适用场景的广泛性。
本申请第二方面提供了一种交通工具。交通工具包括如前述第一方面、第一方面任意一种可选方式中的投影模组。投影模组安装在交通工具上。
可选地，在第二方面的一种可能的实现方式中，上述的交通工具还包括处理器，处理器用于向投影模组发送控制信号，转动部件根据控制信号来调整反射单元的位置，从而改变光束的投射位置。
附图说明
图1至图12A、图12B、图12C、图12D为本申请实施例提供的投影模组的几种结构示意图；
图13为本申请实施例提供投影模组安装在交通工具的示意图；
图14为本申请实施例提供的交通工具的一种可能的功能框架示意图。
具体实施方式
本申请提供了一种投影模组及交通工具，通过在投影模组中增加反射单元，并通过转动部件调整反射单元的位置，从而改变光束的投射位置。通过在投影模组中增加反射单元，并通过转动部件调整反射单元的位置，从而改变光束的投射位置。可以减少空间的要求。此外，可以降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。
应理解，本申请中使用的“第一”、“第二”等仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。另外，为了简明和清楚，本申请实施例多个附图中重复参考编号和/或字母。重复并不表明各种实施例和/或配置之间存在严格的限定关系。
目前，在某些投影场景下(例如，交通工具的照明系统、其他空间受限的投影场景等)，电机推动边缘绕支点转动整个照明单元俯仰倾斜，随着坡道和路面起伏自适应改变出光角度和光束在地面的位置。即通过支架和照明单元总成上下俯仰，以实现迎宾成像或前方照明。然而，上述方案中的转动过程需要较大的空间，而汽车大灯的边界往往受限。
为此，本申请提供了一种投影模组。可以应用于交通工具的照明系统、其他空间受限的投影场景等场景。本申请实施例仅以应用于交通工具的汽车大灯为例进行示例性描述，当然也可以应用于交通工具的尾灯、刹车灯等。该投影模组包括：光源器件、镜头组、反射单元以及与反射单元相连接的转动部件。光源器件的出射光经过镜头组后形成光束，光束被投射到交通工具的外面(例如，交通工具的前方或侧方)。反射单元用于改变光束的传输方向。转动部件用于调整反射单元的位置，从而改变光束的投射位置。通过调整反射单元位置进行不同距离的投影，替代电机旋转整个模组的方案。一方面，反射镜的位置调整对于空间的要求较小，可以减少摄像模组所占的空间。另一方面，转动部件不用转动整个模组，而是投影模组中的反射镜。从而降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。另一方面，在迎宾模式下，相较于电机旋转整个模组的方案。投影模组通过转动部件调整反射镜的位置，可以使得光束投射至相距交通工具距离更近的地面上进行成像。
其中，反射单元的数量可以是一个、两个、或两个以上。另外，根据转动部件调整反射单元的位置不同，该投影模组所应用的交通工具可以应用于迎宾模式或行进模式等。
可以理解的是，反射单元具有改变光束投影位置/传播方向的功能。在反射单元使用过程中，可以有部分时间段(例如迎宾模式、行进模式)改变光路的方向，也可以有部分时间离开光束的传播路径(或者理解为不对光束进行反射)。只要有一段时间，通过转动件改变反射单元的位置，从而改变了光束投射位置，就在本申请的保护范围之内。
本申请实施例中，光源器件可以包括以下至少一种：光源与投影元件。光源包括发光二极管(light emitting diode，LED)和激光二极管(laser diode，LD)等中的至少一个。投影元件包括：液晶显示器(liquid crystal display，LCD)、硅基液晶(liquid crystal on  silicon，LCOS)、数字微镜器件(digital micro-mirror device，DMD)等中的至少一个。在光源器件包括光源，不包括投影元件的情况下，投影模组主要用于交通工具的远光灯与近光灯之间的切换。在光源器件还包括投影元件的情况下，该投影模组还用于在交通工具外面进行成像。
光源器件用于向镜头组输出原始光束。镜头组可以包括以下至少一项：透镜(例如，凸透镜、凹透镜等)、反射镜、棱镜或菲涅尔镜等。另外，镜头组中镜头的数量可以是一个或多个，具体此处不做限定。反射镜可以是具有一定曲率的曲面(例如，曲面半径在1000毫米至100000毫米之间)，也可以自由曲面、还可以是球面等。在反射镜具有曲率的曲面时，可以修正光焦度，提升投影效果。转动部件可以包括转轴以及转轴的驱动电机/电磁阀等。转动部件用于控制反射镜调整镜头组射出光束的投影角度，进而实现交通工具的迎宾模式或行进模式。
其中，行进模式可以理解为是交通工具在行进过程中、需要远距离投影或者不需要近距离投影的场景。该行进模式下，投影模组将光束投射至与交通工具相距第二距离范围的地面上进行成像。或者，投影模组将光束投射至交通工具前方进行成像。迎宾模式可以理解为是交通工具在不行进过程中、在行进过程中但需要近距离投影、或者不需要远距离投影的场景。该迎宾模式下，投影模组将光束投射至与交通工具相距第二距离范围的地面上进行成像。第二距离范围大于第一距离范围。可以理解的是，投射至交通工具前方进行成像中的前方可以包括墙面或地面等。
可选地，上述的行进模式可以理解为投影模组的远光模式，迎宾模式可以理解为投影模组的近光模式。具体的，转动部件可以通过接收控制信号来调整反射单元的位置，进而实现投影模组在近光模式与远光模式之间的切换其中，该控制信号可以是交通工具基于环境变化或用户操作生成的。
当然，为了固定投影模组中的各器件，可以为反射镜、镜头组、光源器件配置相应的支架或壳体。
下面根据反射单元数量以及交通工具所处模式的不同对本申请实施例提供的投影模组分别进行描述。
在反射单元为一个反射镜，交通工具在迎宾模式的情况下，图1为本申请实施例提供的投影模组的一个结构示意图。如图1所示，投影模组包括：光源器件101、镜头组102、反射镜103以及与反射镜103相连接的转动部件104。镜头组102的主光轴与交通工具底盘所在平面呈非零角度。光源器件101的出射光经过镜头组102后形成光束。转动部件104用于调整反射镜103的位置，从而改变光束的投射位置。例如，将光束投射至与交通工具相距第一距离范围的地面上进行成像。或者理解为，转动部件104用于调整反射镜103的位置，从而使得反射镜103输出不同传输方向的光束。
在图1中，光源器件101的主光线和X轴重合。镜头组102的光轴和X轴重合。因此，光源器件101的主光线和镜头组102的光轴重合。转动部件104用于控制反射镜103调整镜头组102射出光束的投影角度(或者理解为，控制反射单元的位置或将镜头组102射出光束的方向进行调整)，进而实现交通工具的迎宾模式或行进模式。在迎宾模式的情况下，反射镜103接收到镜头组102射出的光束，并将该光束的光路调整为第一下倾光路后，投射至与交通工具相距第一距离范围的地面上进行成像。例如，交通工具底盘所在平面与第一下倾光路 的角度为第一角度(例如，第一角度位于9度至30度之间)。第一距离范围为3米-6米。可以理解的是，图1中的第一角度与第一距离范围只是示例，在实际应用中，可以根据需要设置，具体此处不做限定。
可选地，为了减少反射镜103未反射完全带来的漏光。如图2所示，投影模组还可以包括挡板105，挡板105位于反射镜103与镜头组102之间(例如，挡板105位于反射镜103所在的支架上，或位于镜头组12所在支架上等)；挡板105用于阻挡部分光。例如，在迎宾模式下，镜头组102射出的光束可能有一部分光束经过反射镜103进行反射，另一部分光未经过反射镜103反射。挡板105用于防止另一部分光投射出去。
可选地，为了简化分担镜头组102的成像设计，同时适配整灯更多差异化的造型需求。如图2所示，投影模组还可以包括拓展镜106，反射镜103射出的光束经过拓展镜106投射至与交通工具相距第一距离范围的地面上进行成像。其中，该拓展镜106可以是具有一定曲率的球面透镜、自由曲面透镜(曲率半径在1000毫米至100000毫米之间)或平面透镜等。另外，拓展镜106可以参与成像计算也可以不参与成像计算，具体此处不做限定。
在反射单元为一个反射镜，交通工具在行进模式的情况下，图3为本申请实施例提供的投影模组的另一个结构示意图。如图3所示，投影模组包括：光源器件101、镜头组102、反射镜103以及与反射镜103相连接的转动部件104。光源器件101的出射光经过镜头组102后形成光束。转动部件104用于调整反射镜103的位置(例如，反射镜103的调整角度)，以使得光束投射至与交通工具相距第二距离范围的地面上进行成像。可以看出，图1与图3不同之处在于反射镜103的位置，或者理解为反射镜103镜面与水平光轴的角度。对于相同部分，此处不再赘述。
在图3中，在行进模式的情况下，反射镜103接收到镜头组102射出的光束，并将该光束的光路调整为第二下倾光路后，投射至与交通工具相距第二距离范围的地面上进行成像。例如，交通工具底盘所在平面(或与交通工具底盘所在平面平行的平面)与第二下倾光路的角度为第二角度(例如，第二角度位于9度至30度之间)。第二距离范围为8米-10米。可以理解的是，图2中的第二角度与第二距离范围只是示例，在实际应用中，可以根据需要设置，具体此处不做限定。另外，一般情况下，第一角度大于第二角度。即迎宾模式下投影模组对光束的调整角度大于行进模式下投影模组对光束的调整角度。
可选地，与前述图2类似，投影模组还可以包括挡板105，和/或拓展镜106。如图4所示，投影模组还可以包括挡板105，挡板105位于反射镜103与镜头组102连接的一侧；在迎宾模式下，挡板105用于防止反射镜103未反射的部分光束投射出去。反射镜103射出的光束经过拓展镜106投射至与交通工具相距第二距离范围的地面上进行成像。其中，挡板105与拓展镜106的描述可以参考图2的描述，此处不再赘述。
可选地，图4所示的挡板105的位置可以相较于图2所示的挡板105的位置更远离地面，或者理解为，在迎宾模式切换为行进模式后，不仅反射镜103的位置进行了调整，挡板105的位置也可以进行相应调整。另外，为了反射镜103射出的光束都可以经过拓展镜106，可以在反射镜103的射出方向上设置一个或多个拓展镜106。
结合图1至图4可以看出，第一角度大于第二角度。第一距离范围小于第二距离范围。即投影模组在迎宾模式下的投影距离小于投影模组在行进模式下的投影距离。
可以理解的是，图1至图4所示的投影模组是以上倾状态为例。在实际应用中，投影模 组也可以是下倾状态等，具体此处不做限定。
本申请实施例中，通过在投影模组中增加反射镜103，并通过转动部件104调整反射镜103的位置，以使得光束投射至与交通工具相距较近范围(即第一距离范围)或较远范围(即第二距离范围)的地面上进行成像。通过调整反射镜103位置进行不同距离的投影，替代电机旋转整个模组的方案。一方面，反射镜103的位置反射镜的位置调整对于空间的要求较小，可以减少摄像模组所占的空间。另一方面，转动部件104不用转动整个模组，而是投影模组中的反射镜。从而降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。另一方面，相较于电机旋转整个模组的方案。投影模组通过转动部件104调整反射镜103的位置，可以使得光束投射至相距交通工具距离更近或更远的地面上进行成像。
上面对反射单元包括一个反射镜的情况进行了描述，下面对反射单元包括多个反射镜的情况进行描述，本申请实施例仅以多个反射镜为两个反射镜为例进行示例性描述。
在反射单元包括两个反射镜，交通工具在迎宾模式的情况下。例如，上反射镜和下反射镜分别按画幅1/2角度差值布置以满足近处投影的画幅需求。可以在投影场景切换时可以实现焦面调节的功能，达到较佳的地面投影效果。可以理解的是，按画幅1/2角度差值布置只是较优的方案，在实际应用中，也可以使用其他布置方式，具体此处不做限定。
另外，基于两个反射镜与转动部件的连接情况，可以分为多种情况，下面分别进行描述。
第一种，反射单元中的第二反射镜与转动部件连接。
该种情况下，转动部件用于调整第二反射镜的位置，使得第二反射镜接收到镜头组的射出光束，并将光束反射至第一反射镜后投射出去。
1、迎宾模式。
图5为本申请实施例提供的投影模组的另一个结构示意图。如图5所示，投影模组包括：光源器件101、镜头组102、第一反射镜1031、第二反射镜1032以及与第二反射镜1032相连接的转动部件104。第一反射镜1031固定设置在镜头组102的一侧；第二反射镜1032与转动部件104连接，第二反射镜1032通过转动部件104设置在镜头组102的另一侧。在迎宾模式下，转动部件104用于调整第二反射镜1032的位置，以使得第二反射镜1032接收到镜头组102发出的光束，并将该光束反射至第一反射镜1031后投射出去。
在图5中，光源器件101的主光线和X轴重合。镜头组102的光轴和X轴重合。因此，光源器件101的主光线和镜头组102的光轴重合。转动部件104用于控制第二反射镜1032调整镜头组102射出光束的投影角度(或者理解为，控制第二反射镜1032的位置)，使得第二反射镜1032射出的光线可以经过第一反射镜1031反射至地面进行成像，或投射至与交通工具相距第一距离范围的地面上进行成像。例如，交通工具底盘所在平面与第一下倾光路的角度为第一角度，第一下倾光路为迎宾模式下第一反射镜1031的射出光束的光路。第一距离范围为3米-6米。可以理解的是，图5中的第一角度与第一距离范围只是示例，在实际应用中，可以根据需要设置，具体此处不做限定。
可选地，与前述图2或图4所示实施例类似，如图6所示，投影模组还可以包括挡板105，和/或拓展镜106。如图6所示，挡板105位于第一反射镜1031与镜头组102连接的一侧；在迎宾模式下，挡板105用于防止第二反射镜1032未反射至第一反射镜1031的部分光束(或者理解为镜头组102将要射往第二反射镜1032边界外的光线)投射出去。拓展镜106用于将 第一反射镜1031射出的光束投射至与交通工具相距第一距离范围的地面上进行成像。其中，挡板105与拓展镜106的描述可以参考图2或图4中的描述，此处不再赘述。
本实施例中，通过在投影模组中增加第一反射镜1031与第二反射镜1032，并通过转动部件104调整第二反射镜1032的位置，以使得第二反射镜1032接收到镜头组102发出的光束，并将该光束反射至第一反射镜1031后在地面进行成像。或者投射至与交通工具相距较近范围(即第一距离范围)的地面上进行成像。通过调整第二反射镜1032位置进行不同距离的投影，替代电机旋转整个模组的方案。一方面，第二反射镜1032的位置反射镜的位置调整对于空间的要求较小，可以减少摄像模组所占的空间。另一方面，转动部件104不用转动整个模组，而是投影模组中的第二反射镜1032。从而降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。另一方面，在迎宾模式下，相较于电机旋转整个模组的方案。投影模组通过转动部件104调整第二反射镜1032的位置，可以使得光束投射至相距交通工具距离更近的地面上进行成像。
2、行进模式。
图7为本申请实施例提供的投影模组的另一个结构示意图。如图7所示，投影模组包括：光源器件101、镜头组102、第一反射镜1031、第二反射镜1032以及与第二反射镜1032相连接的转动部件104。第一反射镜1031固定设置在镜头组102的一侧；第二反射镜1032与转动部件104连接，第二反射镜1032通过转动部件104设置在镜头组102的另一侧。在行进模式下，转动部件104用于调整第二反射镜1032的位置(例如，图7中第二反射镜1032的调整角度)，以使得第二反射镜1032接收不到镜头组102发出的光束(或者理解为使得第二反射镜1032离开光束的传输路径)，镜头组102的射出光束投射出去。
可选地，与前述图6类似，投影模组还可以包括挡板105，和/或拓展镜106。如图8所示，挡板105位于第一反射镜1031与镜头组102连接的一侧；在行进模式下，为了减少挡板105对于镜头组102射出光束的遮挡，可以将挡板105的位置进行调整(相较于图6所示的挡板105的位置更远离地面)。拓展镜106用于将镜头组102射出的光束投射出去。其中，挡板105与拓展镜106的描述可以参考图6中的描述，此处不再赘述。
可选地，图8所示的挡板105的位置可以相较于图6所示的挡板105的位置更远离地面，或者理解为，在迎宾模式切换为行进模式后，不仅第二反射镜1032的位置进行了调整，挡板105的位置也可以进行相应调整。
本实施例中，通过在投影模组中增加第一反射镜1031与第二反射镜1032，并通过转动部件104调整第二反射镜1032的位置，以使得第二反射镜1032接收不到镜头组102发出的光束，从而实现镜头组102的射出光束投射出去。通过调整第二反射镜1032位置进行前方投影，替代电机旋转整个模组的方案。一方面，第二反射镜1032的位置反射镜的位置调整对于空间的要求较小，可以减少摄像模组所占的空间。另一方面，转动部件104不用转动整个模组，而是投影模组中的第二反射镜1032。从而降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。另一方面，在行进模式下，相较于电机旋转整个模组的方案。投影模组通过转动部件104调整第二反射镜1032的位置，可以使得光束投射至距离交通工具较远的位置或前方进行成像。
第二种，反射单元中的第一反射镜与转动部件连接。
该种情况下，转动部件用于调整第一反射镜的位置，使得第一反射镜接收到第二反射镜 反射的镜头组的射出光束，并将光束投射出去。
1、迎宾模式。
图9为本申请实施例提供的投影模组的另一个结构示意图。如图9所示，投影模组包括：光源器件101、镜头组102、第一反射镜1031、第二反射镜1032以及与第一反射镜1031相连接的转动部件104。第二反射镜1032固定设置在镜头组102的一侧；第一反射镜1031与转动部件104连接，第一反射镜1031通过转动部件104设置在镜头组102的另一侧，转动部件104具体用于调整第一反射镜1031的位置。在迎宾模式下，转动部件104用于调整第一反射镜1031的位置，以接收到第二反射镜1032反射的光束，并将该光束投影至与交通工具相距第一距离范围的地面上进行成像。
在图9中，光源器件101的主光线和X轴重合。镜头组102的光轴和X轴重合。因此，光源器件101的主光线和镜头组102的光轴重合。镜头组102射出的光束经过第二反射镜1032投射至第一反射镜1031，以使得第一反射镜1031将光束投影至地面进行成像。转动部件104用于调整第一反射镜1031的位置(或者理解为，调整第一反射镜1031射出光束的投影角度)，使得第二反射镜1032射出的光线可以经过第一反射镜1031反射至地面进行成像，或投射至与交通工具相距第一距离范围的地面上进行成像。例如，交通工具底盘所在平面与第一下倾光路的角度为第一角度，第一下倾光路为迎宾模式下第一反射镜1031的射出光束的光路。第一距离范围为3米-6米。可以理解的是，图9中的第一角度与第一距离范围只是示例，在实际应用中，可以根据需要设置，具体此处不做限定。
可选地，投影模组还可以包括挡板105，和/或拓展镜106。如图10所示，挡板105位于第一反射镜1031与镜头组102连接的一侧；在迎宾模式下，挡板105用于防止第二反射镜1032未反射至第一反射镜1031的部分光束(或者理解为镜头组102将要射往第二反射镜1032边界外的光线)投射出去。拓展镜106用于将第一反射镜1031射出的光束投射至与交通工具相距第一距离范围的地面上进行成像。其中，挡板105与拓展镜106的描述可以参考前面的描述，此处不再赘述。
本实施例中，通过在投影模组中增加第一反射镜1031与第二反射镜1032，并通过转动部件104调整第一反射镜1031的位置，以使得第二反射镜1032射出的光线可以经过第一反射镜1031反射至地面进行成像，或投射至与交通工具相距较近范围(即第一距离范围)的地面上进行成像。通过调整第一反射镜1031位置进行不同距离的投影，替代电机旋转整个模组的方案。一方面，第一反射镜1031的位置反射镜的位置调整对于空间的要求较小，可以减少摄像模组所占的空间。另一方面，转动部件104不用转动整个模组，而是投影模组中的第一反射镜1031。从而降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。另一方面，在迎宾模式下，相较于电机旋转整个模组的方案。投影模组通过转动部件104调整第一反射镜1031的位置，可以使得光束投射至相距交通工具距离更近的地面上进行成像。
2、行进模式。
图11为本申请实施例提供的投影模组的另一个结构示意图。如图11，投影模组包括：光源器件101、镜头组102、第一反射镜1031、第二反射镜1032以及与第一反射镜1031相连接的转动部件104。第二反射镜1032固定设置在镜头组102的一侧；第一反射镜1031与转动部件104连接，第一反射镜1031通过转动部件104设置在镜头组102的另一侧，转动部件104具体用于调整第一反射镜1031的位置。在迎宾模式下，转动部件104用于调整第一反 射镜1031的位置，以接收到第二反射镜1032反射的光束，并将该光束投影与交通工具相距第二距离范围的地面上或前方进行成像。
在图11中，光源器件101的主光线和X轴重合。镜头组102的光轴和X轴重合。因此，光源器件101的主光线和镜头组102的光轴重合。镜头组102射出的光束经过第二反射镜1032投射至第一反射镜1031，以使得第一反射镜1031将光束投影至地面进行成像。转动部件104用于调整第一反射镜1031的位置(或者理解为，调整第一反射镜1031射出光束的投影角度)，使得第二反射镜1032射出的光线可以经过第一反射镜1031投射至与交通工具相距第二距离范围的地面上或前方进行成像。例如，交通工具底盘所在平面与第二下倾光路的角度为第二角度，第二下倾光路为行进模式下第一反射镜1031的射出光束的光路。第二距离范围为8米-50米。可以理解的是，图11中的第二角度与第二距离范围只是示例，在实际应用中，可以根据需要设置，具体此处不做限定。
可选地，与前述图9类似，投影模组还可以包括挡板105，和/或拓展镜106。如图12A所示，挡板105位于第一反射镜1031与镜头组102连接的一侧；在行进模式下，为了减少挡板105对于镜头组102射出光束的遮挡，可以将挡板105的位置进行调整(相较于图9所示的挡板105的位置更远离地面)。拓展镜106用于将镜头组102射出的光束投射至与交通工具相距第二距离范围的地面上或前方进行成像。其中，挡板105与拓展镜106的描述可以参考之前的描述，此处不再赘述。
可选地，图12A所示的挡板105的位置可以相较于图9所示的挡板105的位置更远离地面，或者理解为，在迎宾模式切换为行进模式后，不仅第一反射镜1031的位置进行了调整，挡板105的位置也可以进行相应调整。
本实施例中，通过在投影模组中增加第一反射镜1031与第二反射镜1032，并通过转动部件104调整第一反射镜1031的位置，以接收到第二反射镜1032反射的光束，并将该光束投影与交通工具相距第二距离范围的地面上或前方进行成像。通过调整第一反射镜1031位置进行前方投影，替代电机旋转整个模组的方案。一方面，第一反射镜1031的位置反射镜的位置调整对于空间的要求较小，可以减少摄像模组所占的空间。另一方面，转动部件104不用转动整个模组，而是投影模组中的第一反射镜1031。从而降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。另一方面，在行进模式下，相较于电机旋转整个模组的方案。投影模组通过转动部件104调整第一反射镜1031的位置，可以使得光束投射至距离交通工具较远的位置或前方进行成像。
可以理解的是，前述两种反射镜与转动部件的连接情况只是举例，在实际应用中，还可以有其他形式，例如，第一反射镜1031与第二反射镜1032分别与转动部件进行连接，转动部件用于控制第一反射镜1031与第二反射镜1032的位置进而实现近距离投影或远距离投影。对于反射镜与转动部件的连接情况此处不做限定。
第三种，反射单元中的第一反射镜与第一转动部件连接，反射单元中的第二反射镜与第二转动部件连接。
该种情况可以理解为是多个反射镜分别与转动部件连接。即两个电机分别控制第一转动部件与第二转动部件，第一反射镜与第一转动部件连接，第一反射镜通过第一转动部件设置在镜头组的一侧。第二反射镜与第二转动部件连接，第二反射镜通过第二转动部件设置在镜 头组的另一侧。
图12B为本申请实施例提供的投影模组的另一个结构示意图。如图12B所示，投影模组包括：光源器件101、镜头组102、第一反射镜1031、第二反射镜1032、与第一反射镜1031连接的第一转动部件104、挡板105以及与第二反射镜1032相连接的转动部件107。第一转动部件104与挡板105连接，第一反射镜1031设置在镜头组102的一侧。第二反射镜1032与第二转动部件107连接，第二反射镜1032通过第二转动部件107设置在镜头组102的另一侧。
具体的，在行进模式下，第一转动部件104用于调整挡板105与第一反射镜1031的位置，一方面使得挡板105向上运动，进而减少挡板105对于镜头组103的投射光线的遮挡。另一方面将第一反射镜1031调整到接收不到来自第二反射镜1032反射光线的位置。第二转动部件107用于调整第二反射镜1032的位置(例如，图12B中第二反射镜1032的调整角度)，以使得第二反射镜1032接收不到镜头组102发出的光束(或者理解为使得第二反射镜1032离开光束的传输路径)，进而使得镜头组102的射出光束投射出去。
在迎宾模式下，第一转动部件104用于调整挡板105与第一反射镜1031的位置，一方面使得挡板105向下运动，进而防止镜头组102反射出的光线未经过反射单元反射出去。另一方面，将第一反射镜1031调整到可以接收来自第二反射镜1032反射光线的位置。第二转动部件107用于调整第二反射镜1032的位置，以使得第二反射镜1032接收到镜头组102发出的光束，并通过第一反射镜1031将光束投射到地面。
可选地，投影模组还可以包括拓展镜106。其中，拓展镜106的描述可以参考前面的描述，此处不再赘述。
进一步的，第一转动部件104可以包括第一转轴齿轮与第一电机齿轮，且第一转轴齿轮啮合第一电机齿轮。第一转轴齿轮分别与第一反射镜1031、挡板105连接，第一电机齿轮对应的电机接收到信号后，通过第一电机齿轮带动第一转轴齿轮从而驱动第一反射镜1031与挡板105运动。第二转动部件107可以包括第二转轴齿轮与第二电机齿轮，且第二转轴齿轮啮合第二电机齿轮。第二转轴齿轮与第二反射镜1032连接，第二电机齿轮对应的电机接收到信号后，通过第二电机齿轮带动第二转轴齿轮从而驱动第二反射镜1032转动。
上述第一转轴齿轮与第二转轴齿轮的参数(例如包括以下至少一项：齿轮模数、齿数等)不同，因此两个齿轮转至终状态的角度各不相同。除了能实现近场迎宾以外(例如3米至6米)，第二反射镜1032还能实现行车时较远路面(例如8米至50米的动态光毯等)的画面投射。
该种情况可以理解为，第一反射镜1031固定在固定位置或者被第一转动部件104带动旋转至预设位置，当两个电机收到车端信号后，同时分别驱动挡板105和第二反射镜1032向上翻转至终不同状态。不同状态对应近场迎宾与远场投影(较远路面8米到50米的实时投影，例如动态光毯等)。
另外，在投影模组包括挡板的情况下，除了上述使用两个电机分别对挡板与第二反射镜进行控制之外，也可以通过一个电机对挡板与第二反射镜进行控制，下面分别进行描述。
第一种，电机通过齿条副同时控制挡板与第二反射镜的位置。
该种情况也可以理解为是通过一个齿条副同时连接第一转动部件与第二转动部件。进而 可以通过一个电机控制齿条副实现第一转动部件与第二转动部件的同时转动，第一转动部件与挡板连接，第一反射镜设置在镜头组的一侧，第二反射镜通过第二转动部件设置在镜头组的另一侧。即投影膜组相较于前述图1至图11的投影模组，结构上还包括被电机控制的齿条副，齿条副分别与第一转动部件以及第二转动部件连接。
图12C为本申请实施例提供的投影模组的另一个结构示意图。如图12C所示，投影模组包括：光源器件101、镜头组102、第一反射镜1031、第二反射镜1032、第一转动部件104、与第一转动部件104连接的挡板105、与第二反射镜1032相连接的转动部件107以及齿条副108。齿条副108分别与第一转动部件104以及第二转动部件107连接。第一反射镜1031设置在镜头组102的一侧。第二反射镜1032与第二转动部件107连接，第二反射镜1032通过第二转动部件107设置在镜头组102的另一侧。
具体的，在行进模式下，第一转动部件104用于调整挡板105位置，使得挡板105向上运动，进而减少挡板105对于镜头组103的投射光线的遮挡。第二转动部件107用于调整第二反射镜1032的位置，以使得第二反射镜1032接收不到镜头组102发出的光束(或者理解为使得第二反射镜1032离开光束的传输路径)，进而使得镜头组102的射出光束投射出去。
在迎宾模式下，第一转动部件104用于调整挡板105的位置，使得挡板105向下运动，进而防止镜头组102反射出的光线未经过反射单元反射出去。第二转动部件107用于调整第二反射镜1032的位置，以使得第二反射镜1032接收到镜头组102发出的光束，并通过第一反射镜1031将光束投射到地面。
可选地，第一转动部件104还可以用于调整第一反射镜1031的位置以满足上述行进模式与迎宾模式。
可选地，投影模组还可以包括拓展镜106。其中，拓展镜106的描述可以参考前面的描述，此处不再赘述。
进一步的，第一转动部件104可以包括第一转轴齿轮与第一电机齿轮，且第一转轴齿轮啮合第一电机齿轮。第一转轴齿轮与挡板105连接。第二转动部件107可以包括第二转轴齿轮与第二电机齿轮，且第二转轴齿轮啮合第二电机齿轮。第二转轴齿轮与第二反射镜1032连接。第一电机齿轮与第二电机齿轮对应一个电机(或者理解为用一个电机通过齿条副同时控制第一电机齿轮与第二电机齿轮)。该电机接收到信号后，不仅可以通过第一电机齿轮带动第一转轴齿轮从而驱动第一反射镜1031与挡板105运动。还可以通过第二电机齿轮带动第二转轴齿轮从而驱动第二反射镜1032转动。
上述第一转轴齿轮与第二转轴齿轮的参数(例如包括以下至少一项：齿轮模数、齿数等)不同，因此一个电机带动的两个齿轮转至终状态的角度各不相同。从而同时调整挡板与第二反射镜的位置，进而除了能实现近场迎宾以外(例如3米至6米)，还能实现行车时较远路面(例如8米至50米的动态光毯等)的画面投射。
该种情况可以理解为，第一反射镜1031固定在固定位置或者被第一转动部件104带动旋转至预设位置，当一个电机收到车端信号后，通过齿条副同时驱动挡板105与第二反射镜1032移动，由于挡板105与第二反射镜1032对应齿轮的参数不同，因此一个电机带动的两个齿轮转至终状态的角度各不相同。从而同时调整挡板与第二反射镜的位置，进而除了能实现近场迎宾以外(例如3米至6米)，还能实现行车时较远路面(例如8米至50米的动态光毯等)的画面投射。
第二种，电机通过多组齿轮同时控制挡板与第二反射镜的位置。
该种情况下，也可以理解为是通过多组齿轮的一端连接第一转动部件，并通过多组齿轮的另一端连接第二转动部件。进而可以通过一个电机控制多组齿轮实现第一转动部件与第二转动部件的同时转动，第一转动部件与挡板连接，第一反射镜设置在镜头组的一侧，第二反射镜通过第二转动部件设置在镜头组的另一侧。具体的，投影膜组相较于前述图1至图11的投影模组，结构上还包括被电机控制的齿条副，齿条副分别与第一转动部件以及第二转动部件连接。
图12D为本申请实施例提供的投影模组的另一个结构示意图。如图12D所示，投影模组包括：光源器件101、镜头组102、第一反射镜1031、第二反射镜1032、第一转动部件104、与第一转动部件104连接的挡板105、与第二反射镜1032相连接的转动部件107以及多组齿轮109。多组齿轮109分别与第一转动部件104以及第二转动部件107连接。第一反射镜1031设置在镜头组102的一侧。第二反射镜1032与第二转动部件107连接，第二反射镜1032通过第二转动部件107设置在镜头组102的另一侧。
其中，关于行进模式与迎宾模式的描述可以参考前述第一种的描述，此处不再赘述。具体与第一种情况的不同点主要在于一个电机的连接对象。即第一种情况是一个电机通过齿条副同时控制第一转动部件与第二转动部件，该种情况是一个电机通过多组齿轮同时控制第一转动部件与第二转动部件
可选地，第一转动部件104还可以用于调整第一反射镜1031的位置以满足上述行进模式与迎宾模式。
可选地，投影模组还可以包括拓展镜106。其中，拓展镜106的描述可以参考前面的描述，此处不再赘述。
进一步的，第一转动部件104可以包括第一转轴齿轮与第一电机齿轮，且第一转轴齿轮啮合第一电机齿轮。第一转轴齿轮与挡板105连接。第二转动部件107可以包括第二转轴齿轮与第二电机齿轮，且第二转轴齿轮啮合第二电机齿轮。第二转轴齿轮与第二反射镜1032连接。第一电机齿轮与第二电机齿轮对应一个电机(或者理解为用一个电机通过多组齿轮同时控制第一电机齿轮与第二电机齿轮)。该电机接收到信号后，不仅可以通过第一电机齿轮带动第一转轴齿轮从而驱动第一反射镜1031与挡板105运动。还可以通过第二电机齿轮带动第二转轴齿轮从而驱动第二反射镜1032转动。
一种可能实现的方式中，上述第一转轴齿轮与第二转轴齿轮的参数(例如包括以下至少一项：齿轮模数、齿数等)不同，因此一个电机带动的两个齿轮转至终状态的角度各不相同。从而同时调整挡板与第二反射镜的位置，进而除了能实现近场迎宾以外(例如3米至6米)，还能实现行车时较远路面(例如8米至50米的动态光毯等)的画面投射。即图12D中第一转动部件104的参数与第二转动部件107的参数不同。
另一种可能实现的方式中，上述多组齿轮中与第一转轴齿轮相啮合的齿轮与多组齿轮中与第二转轴齿轮相啮合的齿轮参数不同，因此一个电机带动的两个齿轮转至终状态的角度各不相同。从而同时调整挡板与第二反射镜的位置，进而除了能实现近场迎宾以外(例如3米至6米)，还能实现行车时较远路面(例如8米至50米的动态光毯等)的画面投射。即图12D中多组齿轮109中上方齿轮(即多组齿轮109中与第一转动部件连接的齿轮)与下方齿轮(即 多组齿轮109中与第二转动部件连接的齿轮)的参数不同。
可以理解的是，上述两种可能实现的方式只是举例，在实际应用中，还可以通过其他方式使得一个电机带动的两个齿轮转至终状态的角度不相同，具体此处不做限定。
该种情况可以理解为，第一反射镜1031固定在固定位置或者被第一转动部件104带动旋转至预设位置，当一个电机收到车端信号后，通过多组齿轮同时驱动挡板105与第二反射镜1032移动，由于挡板105与第二反射镜1032对应齿轮的参数不同，因此一个电机带动的两个齿轮转至终状态的角度各不相同。从而同时调整挡板与第二反射镜的位置，进而除了能实现近场迎宾以外(例如3米至6米)，还能根据需要实现行车时较远路面8米到50米的实时投影，例如动态光毯等。
可以理解的是，上述只是以齿条副、多组齿轮为例进行的描述，在实际应用中，还可以是通过其他部件(例如齿轮副)同时连接第一转动部件与第二转动部件，具体此处不做限定。
另外，上述只是以第一反射镜固定，第二反射镜可转动为例进行的描述，在实际应用中，还可以是第二反射镜固定，第一反射镜可转动。还可以是第一反射镜与第二反射镜都可转动等，具体此处不做限定。
本申请实施例还提供了一种交通工具，该交通工具安装有前述任意一种投影模组或投影系统。该投影模组或投影系统包括：光源器件、镜头组、反射单元以及与反射单元相连接的转动部件。光源器件的出射光经过镜头组后形成光束。转动部件用于调整反射单元的位置，从而改变光束的投射位置。其中，反射单元的数量可以是一个、两个、或两个以上。另外，根据转动部件调整反射单元的位置不同，该投影模组所应用的交通工具可以应用于迎宾模式或行进模式等。
本申请实施例还提供了一种交通工具，该交通工具安装有前述图1至图12D任意一种投影模组。图13为本申请实施例提供投影模组安装在交通工具的示意图。或者理解为，投影模组为交通工具车前大灯中的一部分。交通工具通过控制投影模组中反射单元的角度或位置，实现近距离(例如1米至6米)投影、远距离(例如6米至50米)投影或前方投影。
可选地，上述的交通工具还包括处理器，处理器用于向投影模组发送控制信号，转动部件根据控制信号来调整反射单元的位置，从而改变光束的投射位置。其中，该处理器可以是电子控制单元(electronic control unit，ECU)以及整车控制器140(body control module，BCM)等处理器/控制器中的至少一种。
示例性的，交通工具可以为轿车、卡车、摩托车、公共汽车、船、飞机、直升飞机、割草机、娱乐车、游乐场车辆、施工设备、电车、高尔夫球车、火车、和手推车等，本申请实施例不作特别的限定。投影模组可以安装于交通工具的照明系统(例如汽车大灯、尾灯、刹车灯等)上。可以用于远近光灯切换与迎宾等投影。
图14为本申请请实施例提供的交通工具的一种可能的功能框架示意图。
如图14示，交通工具的功能框架中可包括各种子系统，例如，图示中的控制系统15、传感器系统12、一个或多个外围设备16(图示以一个为例示出)、电源18、计算机系统20、 显示系统32。可选地，交通工具还可包括其他功能系统，例如，为交通工具提供动力的引擎系统等等，本申请这里不做限定。
其中，传感器系统12可包括若干检测装置，这些检测装置能感受到被测量的信息，并将感受到的信息按照一定规律将其转换为电信号或者其他所需形式的信息输出。如图示出，这些检测装置可包括全球定位系统(global positioning system，GPS)、车速传感器、惯性测量单元(inertial measurement unit，IMU)、雷达单元、激光测距仪、摄像装置、轮速传感器、转向传感器、档位传感器、或者其他用于自动检测的元件等等，本申请并不做限定。
控制系统15可包括若干元件，例如图示出的转向单元、制动单元、照明系统、自动驾驶系统、地图导航系统、网络对时系统和障碍规避系统。可选地，控制系统15还可包括诸如用于控制车辆行驶速度的油门处理器及发动机处理器等元件，本申请不做限定。
外围设备16可包括若干元件，例如图示中的通信系统、触摸屏、用户接口、麦克风以及扬声器等等。其中，通信系统用于实现交通工具和除交通工具之外的其他设备之间的网络通信。在实际应用中，通信系统可采用无线通信技术或有线通信技术实现交通工具和其他设备之间的网络通信。该有线通信技术可以是指车辆和其他设备之间通过网线或光纤等方式通信。
电源18代表为车辆提供电力或能源的系统，其可包括但不限于再充电的锂电池或铅酸电池等。在实际应用中，电源中的一个或多个电池组件用于提供车辆启动的电能或能量，电源的种类和材料本申请并不限定。
交通工具的若干功能均由计算机系统20控制实现。计算机系统20可包括一个或多个处理器2001(图示以一个处理器为例示出)和存储器2002(也可称为存储装置)。在实际应用中，该存储器2002也在计算机系统20内部，也可在计算机系统20外部，例如作为交通工具中的缓存等，本申请不做限定。其中，
关于处理器2001的描述，可以参考前述处理器1301的描述。处理器2001可包括一个或多个通用处理器，例如，图形处理器(graphic processing unit，GPU)。处理器2001可用于运行存储器2002中存储的相关程序或程序对应的指令，以实现车辆的相应功能。
存储器2002可以包括易失性存储器(volatile memory)，例如，RAM；存储器也可以包括非易失性存储器(non-volatile memory)，例如，ROM、快闪存储器(flash memory)或固态硬盘(solid state drives，SSD)；存储器2002还可以包括上述种类的存储器的组合。存储器2002可用于存储一组程序代码或程序代码对应的指令，以便于处理器2001调用存储器2002中存储的程序代码或指令以实现车辆的相应功能。该功能包括但不限于图14所示的车辆功能框架示意图中的部分功能或全部功能。本申请中，存储器2002中可存储一组用于车辆控制的程序代码，处理器2001调用该程序代码可控制车辆安全行驶，关于如何实现车辆安全行驶具体在本申请下文详述。
可选地，存储器2002除了存储程序代码或指令之外，还可存储诸如道路地图、驾驶线路、传感器数据等信息。计算机系统20可以结合车辆功能框架示意图中的其他元件，例如传感器系统中的传感器、GPS等，实现车辆的相关功能。例如，计算机系统20可基于传感器系统12的数据输入控制交通工具的行驶方向或行驶速度等，本申请不做限定。
显示系统32可包括若干元件，例如，处理器和前述图1至图13中描述的任意一种投影模组。处理器用于根据用户指令生成图像，并将该图像内容发送至投影模组。通过在投影模组中增加反射单元，并通过转动部件调整反射单元的位置，从而改变光束的投射位置。通过 调整反射镜位置进行投影，替代电机旋转整个模组的方案。一方面，反射镜的位置调整对于空间的要求较小，可以减少摄像模组所占的空间。另一方面，降低电机扭矩，驱动电流规格，功耗和成本及二氧化碳排放得以降低。另一方面，通过转动部件调整反射单元的位置，可以使得光束投射至相距投影模组距离较近的地面上进行成像。需要说明的是，显示系统32中的部分元件的功能也可以由车辆的其它子系统来实现，例如，处理器也可以为控制系统15中的元件。
可以理解的是，投影模组也可以位于照明系统中，用于实现交通工具的远近光照明以和/或投影。
其中，本申请图14出包括四个子系统，传感器系统12、控制系统15、计算机系统20和显示系统32仅为示例，并不构成限定。在实际应用中，交通工具可根据不同功能对车辆中的若干元件进行组合，从而得到相应不同功能的子系统。在实际应用中，交通工具可包括更多或更少的系统或元件，本申请不做限定。
在本说明书的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (17)

  1. 一种投影模组，其特征在于，所述投影模组应用于交通工具，所述投影模组包括：光源器件、镜头组、反射单元以及与所述反射单元相连接的转动部件；
    所述光源器件的出射光经过所述镜头组后形成光束，所述光束被投射到所述交通工具的外面；
    所述反射单元用于改变所述光束的传输方向；
    所述转动部件用于调整所述反射单元的位置，从而改变所述光束的投射位置。
  2. 根据权利要求1所述的投影模组，其特征在于，所述转动部件用于调整所述反射单元的位置，从而改变所述光束的投射位置包括：所述转动部件用于调整所述反射单元的位置，以使得所述反射单元接收到所述光束，并将所述镜头组射出光束的方向进行调整，投射至与所述交通工具相距第一距离范围的地面上进行成像。
  3. 根据权利要求2所述的投影模组，其特征在于，所述第一距离范围为1米至6米。
  4. 根据权利要求2或3所述的投影模组，其特征在于，所述光束经过所述反射单元调整后的传播方向与所述交通工具的底盘所在平面之间的夹角为9度至30度之间。
  5. 根据权利要求1至4中任一项所述的投影模组，其特征在于，所述转动部件用于调整所述反射单元的位置，从而改变所述光束的投射位置包括：所述转动部件用于调整所述反射单元的位置，以使得所述反射单元接收到所述光束，并将所述镜头组的射出光束投射至与所述交通工具相距相距第二距离范围的地面上进行成像。
  6. 根据权利要求5所述的投影模组，其特征在于，所述第二距离范围为8米至50米。
  7. 根据权利要求1至6中任一项所述的投影模组，其特征在于，所述反射单元包括第一反射镜与第二反射镜，所述转动部件用于调整所述第二反射镜的位置，使得所述第二反射镜接收到所述镜头组的出射光束，并将所述光束反射至所述第一反射镜后投射出去。
  8. 根据权利要求1至6中任一项所述的投影模组，其特征在于，所述反射单元包括第一反射镜与第二反射镜，所述转动部件用于调整所述第一反射镜的位置，使得所述第一反射镜接收到所述第二反射镜反射的所述镜头组的出射光束，并将所述光束投射出去。
  9. 根据权利要求1至6中任一项所述的投影模组，其特征在于，所述反射单元包括第一反射镜与第二反射镜，所述转动部件用于调整所述第一反射镜与所述第二反射镜的位置，使得所述第二反射镜接收到所述镜头组的出射光束，并将所述光束反射至所述第一反射镜后投射出去。
  10. 根据权利要求1至6中任一项所述的投影模组，其特征在于，所述反射单元包括一个反射镜，所述反射镜用于接收所述镜头组的射出光束，所述镜头组的主光轴与所述交通工具底盘所在平面呈非零角度。
  11. 根据权利要求1至10中任一项所述的投影模组，其特征在于，所述投影模组还包括挡板，所述挡板位于所述反射单元与所述镜头组之间，所述挡板用于阻挡部分光。
  12. 根据权利要求1至11中任一项所述的投影模组，其特征在于，所述投影模组还包括拓展镜，所述光束经过所述拓展镜投射至所述交通工具前方进行成像。
  13. 根据权利要求1至12中任一项所述的投影模组，其特征在于，所述光源器件包括光源与投影元件，所述光源包括：发光二极管LED和激光二极管LD中的任一个，所述投影元件 包括：液晶显示器LCD、硅基液晶LCOS、数字微镜器件DMD中的任一个。
  14. 根据权利要求1至13中任一项所述的投影模组，其特征在于，所述转动部件通过接收控制信号来调整所述反射单元的位置。
  15. 根据权利要求14所述的投影模组，其特征在于，所述转动部件通过调整所述反射单元的位置实现所述投影模组在近光模式与远光模式之间的切换，所述近光模式为所述投影模组的投射位置与所述交通工具相距第一距离，所述近光模式为所述投射位置与所述交通工具相距第二距离，所述第一距离小于所述第二距离。
  16. 一种交通工具，其特征在于，包括权利要求1至15中任一项所述的投影模组，所述投影模组安装在所述交通工具上。
  17. 根据权利要求16所述的交通工具，其特征在于，所述交通工具还包括处理器，所述处理器用于向所述投影模组发送控制信号，所述转动部件根据所述控制信号来调整反射单元的位置，从而改变光束的投射位置。
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