WO2021179560A1 - 一种光学系统、电子设备以及显示装置 - Google Patents

一种光学系统、电子设备以及显示装置 Download PDF

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Publication number
WO2021179560A1
WO2021179560A1 PCT/CN2020/114564 CN2020114564W WO2021179560A1 WO 2021179560 A1 WO2021179560 A1 WO 2021179560A1 CN 2020114564 W CN2020114564 W CN 2020114564W WO 2021179560 A1 WO2021179560 A1 WO 2021179560A1
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WO
WIPO (PCT)
Prior art keywords
optical
optical system
camera module
reflection device
bearing
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/CN2020/114564
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English (en)
French (fr)
Inventor
李�灿
张海洋
陈勇
罗臻
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 EP20924115.7A priority Critical patent/EP3974887A4/en
Priority to CN202080001923.2A priority patent/CN113874772A/zh
Publication of WO2021179560A1 publication Critical patent/WO2021179560A1/zh
Priority to US17/903,799 priority patent/US20230003998A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
    • 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
    • G02B26/10—Scanning systems
    • G02B26/101—Scanning systems with both horizontal and vertical deflecting means, e.g. raster or XY scanners
    • 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
    • G02B26/10—Scanning systems
    • G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
    • 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
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19617—Surveillance camera constructional details
    • G08B13/19626—Surveillance camera constructional details optical details, e.g. lenses, mirrors or multiple lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • 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
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G03B37/02—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with scanning movement of lens or cameras

Definitions

  • This application relates to the technical field of electronic devices, and in particular to an optical system, electronic equipment and a display device.
  • monitoring equipment In order to ensure the safety of the city, monitoring equipment will be installed in some places in the city, and the monitoring range of a single camera monitoring equipment is limited. In order to further increase the monitoring range, multi-camera monitoring equipment has appeared.
  • the camera in the dome camera can rotate 360 degrees at a relatively high speed, that is, it can realize the function of rapid circular scanning.
  • the camera needs to rotate to a specific position and shoot in a stable state.
  • the fill light module, and related drive components such as a motor and a bearing
  • the load is relatively large.
  • the camera rotates to a specific position, it will take a long time for the camera to reach a stable state due to the inertia of the camera, the fill light module, and related drive components (such as motors and bearings), that is to say, the dome camera is in progress.
  • the fill light module, and related drive components such as motors and bearings
  • the way the camera is driven to rotate in a camera monitoring device with a fast weekly scan function limits the capture speed of this type of monitoring device.
  • the present application provides an optical system, electronic equipment and a display device, which are used to increase the capture speed of a camera monitoring equipment with a fast weekly scanning function.
  • an embodiment of the present application provides an optical system, which includes a camera module, an optical reflection device, and a first driving component.
  • the position of the camera module in the optical system is fixed and will not rotate or move.
  • the camera module is opposite to the front of the optical reflecting device, and the optical reflecting system can reflect the light projected on the optical reflecting device into the camera module. In this way, the camera module can capture images with the light reflected to the camera module.
  • the first driving component can change the position of the optical reflection device and drive the optical reflection device to rotate in the first direction.
  • the position of the camera module is fixed, and the direction of the light reflecting device can be adjusted through the first driving component, so that the camera module can capture images in various directions.
  • the camera module no longer needs to rotate, which can effectively shorten the camera The time the module took the image.
  • the components that need to be moved are the optical reflector and the first driving component. During the movement, the load is relatively small, which is beneficial to achieve efficient movement and facilitates the camera module to capture images.
  • the optical system may also include other driving components, so as to realize the rotation of the optical reflection device in directions other than the first direction.
  • the optical system further includes a second driving component, and the second driving component can drive the optical reflection device to rotate in a second direction; the first direction and the second direction are different.
  • the optical reflection device can rotate in multiple different directions, so that the optical reflection device can reflect light in various different directions, so that the camera module can capture images in multiple directions with a larger capture range.
  • the installation direction of the camera module can be fixedly arranged along the horizontal direction (direction perpendicular to the direction of gravity), or fixedly arranged in the direction of gravity.
  • the camera module is arranged in a fixed direction, and the arrangement position is more flexible.
  • the camera module is located below the optical reflector or above the desired optical reflector.
  • the first drive assembly to drive the optical reflection device
  • a motor can be used to drive the optical reflection device to rotate.
  • the first driving assembly includes a first motor and a first bearing; the first motor is used to drive the first bearing, so that the first bearing drives the optical reflection device to rotate in the first direction.
  • the first driving assembly can easily drive the optical reflection device to rotate through the first motor and the first bearing.
  • the second drive assembly includes a second motor and a second bearing; the second bearing is connected to the optical reflector; the second motor is used to drive the second bearing so that the second bearing Drive the optical reflection device to rotate in the second direction.
  • the second driving assembly can easily drive the optical reflection device to rotate through the second motor and the second bearing.
  • the first bearing may be connected to the back or side surface of the optical reflection device, so that it is convenient for the first motor to drive the optical reflection device to rotate.
  • the first bearing may also be connected to the second motor through a connecting rod, and the connecting rod can be used to enable the optical reflection device to rotate in two different directions.
  • the surface shape of the optical reflection device may be fixed, that is, the optical reflection device may be a surface fixed mirror, and the surface shape of the surface fixed mirror is one of the following:
  • the optical reflecting device is a surface-type variable reflector
  • the surface-type variable reflector can be one of the following:
  • the surface variable reflector is suitable for a variety of different application scenarios because it can change its own reflecting surface, and the control method is more flexible, which also expands the application range of the optical system.
  • the optical reflective device can be a single-sided coated optical reflective device, that is, only one side can reflect light, and the optical reflective device can also be a double-sided coated optical reflective device, that is, both sides are coated. It can reflect light, and the double-sided coated optical reflective device can reflect light on both sides, so that when the first drive component and the second drive component drive the optical reflective device, they only need to rotate a small angle to be able to rotate to reflect light.
  • the rotation time of the light reflecting device can be reduced, and the range of light that can be reflected by the double-sided coating reflecting device will also increase, which increases the shooting range of the camera module.
  • the first direction and the second direction are perpendicular.
  • the optical reflection device can rotate in two directions perpendicular to each other, so that the optical reflection device can realize omni-directional rotation, and further ensure the capture range of the camera module.
  • the second direction may be the direction of gravity. That is, one rotation direction of the optical reflection device is the direction of gravity.
  • the second bearing is connected to the side or back of the reflective optical device.
  • the second bearing can be connected to the back or side surface of the optical reflection device, which facilitates the second motor to drive the optical reflection device to rotate.
  • the optical system further includes a bracket, and the first driving component is connected to the camera module through the bracket.
  • the first driving assembly can be supported so that the optical reflection device can be driven to rotate.
  • the optical system further includes a housing, and the housing is located outside the camera module.
  • the housing is arranged on the outside of the camera module, which can protect the camera module from being damaged.
  • the optical system further includes a light-transmitting cover, which is connected to the housing and is located outside the first driving assembly and the optical reflection device.
  • the light-transmitting cover can protect other components in the optical system on the premise that the optical reflective device can work normally.
  • an embodiment of the present application provides an electronic device, including a processor and a camera, and the camera includes the first aspect and the optical system in any possible implementation of the first aspect.
  • an embodiment of the present application provides an optical system, which includes a camera module, an optical reflection device, and a first driving component.
  • the camera module is opposite to the front of the optical reflecting device, and the optical reflecting system can reflect the light projected on the optical reflecting device into the camera module. In this way, the camera module can capture images with the light reflected to the camera module.
  • the first driving component can change the position of the optical reflection device and drive the optical reflection device to rotate in the first direction.
  • the camera module may not be rotated, which can effectively shorten the time for the camera module to capture images.
  • the components that need to be moved are the optical reflector and the first drive assembly. During the movement, the load is relatively small, which is conducive to efficient movement and convenient for the camera module to capture images.
  • the optical system may also include other driving components, so as to realize the rotation of the optical reflection device in directions other than the first direction.
  • the optical system further includes a second driving component, and the second driving component can drive the optical reflection device to rotate in a second direction; the first direction and the second direction are different.
  • the optical reflection device can reflect light in different directions, so that the camera module can capture images in multiple directions with a larger capture range.
  • the installation direction of the camera module can be arranged in a horizontal direction (a direction perpendicular to the direction of gravity), and can also be arranged in the direction of gravity.
  • the setting position of the camera module is more flexible and suitable for different application scenarios.
  • the first driving component to drive the optical reflection device
  • a motor can be used to drive the optical reflection device to rotate.
  • the first driving assembly includes a first motor and a first bearing; the first motor is used to drive the first bearing, so that the first bearing drives the optical reflection device to rotate in the first direction.
  • the first driving component can also drive the camera module to rotate in a similar manner. This way is simpler and more convenient.
  • the second drive assembly includes a second motor and a second bearing; the second bearing is connected to the optical reflector; the second motor is used to drive the second bearing so that the second bearing Drive the optical reflection device to rotate in the second direction.
  • the second driving component can also drive the camera module to rotate in a similar manner. This way is simpler and more convenient.
  • the first bearing may be connected to the back or side surface of the optical reflection device, so that it is convenient for the first motor to drive the optical reflection device to rotate.
  • the first bearing may also be connected to the second motor through a connecting rod, and the connecting rod can be used to enable the optical reflection device to rotate in two different directions.
  • the surface shape of the optical reflection device may be fixed, that is, the optical reflection device may be a surface fixed mirror, and the surface shape of the surface fixed mirror is one of the following:
  • the optical reflecting device is a surface-type variable reflector
  • the surface-type variable reflector can be one of the following:
  • the optical reflective device can be a single-sided coated optical reflective device, that is, only one side can reflect light, and the optical reflective device can also be a double-sided coated optical reflective device, that is, both sides are coated. It can reflect light, and the double-sided coated optical reflective device can reflect light on both sides, so that when the first drive component and the second drive component drive the optical reflective device, they only need to rotate a small angle to be able to rotate to reflect light.
  • the rotation time of the light reflecting device can be reduced, and the range of light that can be reflected by the double-sided coating reflecting device will also increase, which increases the shooting range of the camera module.
  • the first direction and the second direction are perpendicular.
  • the optical reflection device can rotate in two directions perpendicular to each other, so that the optical reflection device can realize omni-directional rotation, and further ensure the capture range of the camera module.
  • the second direction may be the direction of gravity. That is, one rotation direction of the optical reflection device is the direction of gravity.
  • the second bearing is connected to the side or back of the reflective optical device.
  • the second bearing can be connected to the back or side surface of the optical reflection device, which facilitates the second motor to drive the optical reflection device to rotate.
  • the optical system further includes a bracket, and the first driving component is connected to the camera module through the bracket.
  • the first driving assembly can be supported so that the optical reflection device can be driven to rotate.
  • the optical system further includes a housing, and the housing is located outside the camera module.
  • the optical system further includes a light-transmitting cover, which is connected to the housing and is located outside the first driving assembly and the optical reflection device.
  • an embodiment of the present application provides an electronic device, including a processor and an imaging device, and the imaging device includes the second aspect and the optical system in any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a display device, including the second aspect and the optical system in any possible implementation manner of the second aspect, and the optical system is located on the upper part of the display device.
  • the type of display device is not limited here, and all devices with display functions are applicable to the embodiments of the present application.
  • the display device may be a television, a display screen, a smart screen, and other devices.
  • Figure 1A is a schematic diagram of the setup of a ball machine
  • Figure 1B is a schematic diagram of the structure of a ball machine
  • FIG. 2 is a schematic structural diagram of an optical system provided by this application.
  • FIG. 3A is a schematic front view of the first driving assembly and the optical reflection device provided by this application;
  • FIG. 3B is a schematic diagram of the back of the first driving component and the optical reflective device provided by this application;
  • 4A is a schematic front view of the first driving assembly and the optical reflection device provided by this application;
  • 4B is a schematic diagram of the backside of the first driving component and the optical reflection device provided by this application;
  • 4C is a schematic diagram of the connection between the first bearing and the optical reflective device provided by this application.
  • FIG. 5 is a schematic structural diagram of an optical system provided by this application.
  • 6A is a schematic front view of the first driving component, the second driving component, and the optical reflective device provided by this application;
  • 6B is a schematic back view of the first driving component, the second driving component, and the optical reflective device provided by this application;
  • FIGS. 7A to 7C are schematic diagrams of the light reflection optical path of the optical reflection device provided by this application.
  • FIG. 8 is an optical path diagram when the surface type of the optical reflection device provided by this application is concave
  • FIG. 9A is an optical path diagram when the surface type of the optical reflection device provided by this application is convex
  • FIG. 9B is a schematic front view of the first driving component, the second driving component, and the optical reflective device provided by this application;
  • FIG. 9C is a schematic back view of the first driving component, the second driving component, and the optical reflective device provided by this application;
  • FIG. 9D is a schematic back and front view of the first driving component, the second driving component, the camera module, and the optical reflecting device provided by this application;
  • FIG. 10 is a schematic structural diagram of an optical system provided by this application.
  • FIG. 11 is a schematic diagram of a side structure of an optical system provided by this application.
  • FIG. 12 is a schematic structural diagram of an optical system provided by this application.
  • FIG. 13 is a schematic diagram of the rotation direction of an optical reflection device and a camera module in an optical system provided by this application;
  • FIG. 14 is a schematic structural diagram of an optical system provided by this application.
  • 15 is a schematic diagram of the rotation direction of the optical reflection device and the camera module in an optical system provided by this application;
  • Fig. 16 is a schematic diagram of a position of an imaging device
  • FIG. 17 is a schematic cross-sectional structure diagram of an optical system provided by this application.
  • FIG. 1A it is a schematic diagram of the dome camera.
  • the dome camera is fixed at a certain height, and the camera in the dome camera can rotate 360 degrees to capture the flow of people from all directions in the place where the dome camera is located.
  • Fig. 1B is a schematic diagram of the structure of the dome camera, and Fig. 1B shows the main components included in the dome camera, such as a camera and two motors.
  • the camera can rotate under the driving of the two motors.
  • the overall load almost includes most of the components of the dome camera (such as motors, cameras, etc.).
  • the load is heavier.
  • the average capture speed of the dome camera is 0.2 frames per second, which means The dome camera can shoot one frame of images every five seconds.
  • the capture speed is only suitable for places with low traffic. When there is a large traffic, the capture speed is small, which will cause missed shooting, and it will not be better. Monitoring effect.
  • an embodiment of the present application provides an optical system that includes a camera module capable of capturing images, an optical reflection device, and a first driving component.
  • the optical reflection device can reflect light into
  • the camera module can take a snapshot through the optical reflecting device.
  • the first driving component can drive the optical reflection device to move, so that the optical reflection device can reflect light in different directions, and the camera module can thus capture images in different directions.
  • the camera module is relatively fixed. Only by adjusting the direction of the light reflecting device, the camera module can capture images in various directions, omitting the time for the camera module to rotate and reaching a stable state, which can be effective Shorten the time taken by the camera module to capture images.
  • the components that need to be moved are the optical reflector and the first drive component. During the movement, the load is relatively small, which can achieve efficient movement and is also convenient for the camera module to capture images.
  • the optical system includes a camera module 110, an optical reflection device 120, and a first driving component 130.
  • the camera module 110 is fixedly arranged, and the camera module 110 faces the optical reflection device 120 in front.
  • the camera module 110 in FIG. 2 is located above the optical reflector 120.
  • the optical reflection device 120 can reflect the light projected on the optical reflection device 120 into the camera module 110.
  • the camera module 110 can capture images through the optical reflection device 120, that is, the camera module 110 can use the input camera module 110 In the light for imaging.
  • the first driving assembly 130 can drive the optical reflection device 120 to rotate in the first direction. Driven by the first driving component 130, the optical reflection device 120 can reflect light in different directions into the camera module 110.
  • the embodiment of the present application does not limit the manner in which the first driving component 130 drives the optical reflection device 120.
  • the first driving component 130 can drive the optical reflection device 120 to rotate through magnetic force (for example, using the force between magnetic poles to drive the optical reflection device 120). 120 to rotate), the first driving component 130 can also use an electromagnetic field to drive the optical reflection device 120 to rotate (for example, the action between an electric current and a magnetic field is used to drive the optical reflection device 120 to rotate).
  • the first driving component 130 may also drive the optical reflection device 120 to rotate through a mechanical method (such as a torsion spring, a motor, etc.).
  • the first direction may be the direction of gravity (also referred to as the vertical direction, the vertical direction, or the vertical rotation direction in the embodiments of the present application), or it may be the same as
  • the direction of gravity is at a certain angle, such as the horizontal direction (90 degrees to the direction of gravity, the horizontal direction can also be called the horizontal rotation direction).
  • the assembly 130 is disposed under the optical reflecting device 120 and opposite to the back of the optical reflecting device 120.
  • the first driving assembly 130 includes a first bearing 131 and a first motor 132, and the first bearing 131 is connected to the optical reflecting device 120.
  • FIG. 3B which is a schematic diagram of the back of the first driving assembly 130 and the optical reflector 120
  • the first bearing 131 is connected to the back of the optical reflector.
  • the first motor 132 can drive the first bearing 131 so that the first rotating shaft can rotate in a horizontal direction, and the optical reflection device 120 can be driven to rotate in the horizontal direction under the action of the first bearing 131.
  • the optical reflection device 120 When the optical reflection device 120 rotates in the horizontal direction, the optical reflection device 120 can realize a 360-degree rotation on the horizontal plane. In this way, during the rotation, light from all directions can be projected onto the optical reflection device 120, and the camera module The optical reflection device 120 can capture images of various orientations on the horizontal plane. In addition, in the process of capturing an image, the camera module 110 does not need to be rotated, which effectively shortens the time for capturing an image.
  • the driving assembly 130 includes a first motor 132 and a first bearing 131, and the first bearing 131 is connected to the optical reflection device 120.
  • FIG. 4B which is a schematic diagram of the back of the first driving assembly 130 and the optical reflection device 120, the first bearing 131 is connected to the side of the optical reflection device 120.
  • the side surface of the optical reflective device 120 is provided with a buckle 133, and the first bearing 131 can be clipped on the buckle 133.
  • the first motor 132 can drive the first bearing 131 so that the first bearing 131 can rotate in the vertical direction. In this way, the optical reflection device 120 can be driven to rotate in the vertical direction under the action of the first bearing 131.
  • the optical reflection device 120 When the optical reflection device 120 rotates in the vertical direction, the optical reflection device 120 can realize a 360-degree rotation on the vertical plane (that is, the gravitational plane). In this way, during the rotation, the light from all directions can be projected to the optical reflection.
  • the camera module 110 can capture images in various directions on the vertical plane through the optical reflective device 120. In addition, in the process of capturing an image, the camera module 110 no longer participates in rotation, which effectively shortens the time for capturing an image.
  • the camera module 110 can capture images in various directions in the first direction.
  • the optical system also Another driving component may be included to drive the optical reflection device 120 to rotate in another direction.
  • an optical system provided by this embodiment of the application includes a camera module 110, an optical reflector 120, a first driving component 130, and a second driving component 140.
  • the second driving component 140 may The optical reflection device 120 is driven to rotate in the second direction; the first direction and the second direction are different directions.
  • the structure of the first driving component 130 is similar to that of the second driving component 140. For details, please refer to the structure of the first driving component 130, which will not be described here. Similar to the first driving assembly 130, the embodiment of the present application does not limit the manner in which the second driving assembly 140 drives the optical reflective device 120, nor does it limit the specific orientation of the second direction.
  • the rotation process of the first driving component 130 driving the optical reflection device 120 and the rotation process of the second driving component 140 driving the optical reflection device 120 can be performed separately, that is, at the same time, only one driving component drives the optical reflection device 120 to rotate.
  • the rotation process of the first driving component 130 driving the optical reflection device 120 and the rotation process of the second driving component 140 driving the optical reflection device 120 may also be performed simultaneously, that is, at the same time, one driving component drives the optical reflection device 120 to rotate. During the process, another driving component can also drive the optical reflection device 120 to rotate.
  • a connection can be established between the first driving component 130 and the second driving component 140.
  • first direction as the horizontal direction (that is, the direction of gravity)
  • second direction as the vertical direction
  • the connection between the first driving assembly 130 and the second driving assembly 140 and the optical reflection device 120 will be described.
  • FIG. 6A it is a front view of the first drive assembly 130, the second drive assembly 140 and the optical reflector 120;
  • the first drive assembly 130 includes a first motor 132 and a first bearing 131, the first bearing 131 is connected to the optical reflector The device 120;
  • the second drive assembly 140 includes a second motor 142 and a second bearing 141, the second bearing 141 is connected to the optical reflection device 120.
  • the first bearing 131 and the second bearing 141 may be connected by a connecting rod.
  • the second bearing 141 is connected to the side surface of the optical reflection device 120.
  • the first bearing 131 is connected to the second motor 142 through an L-shaped connecting rod 150.
  • the first bearing 131 is driven by the first motor 132.
  • the first bearing 131 drives the second driving assembly 140 and the optical reflecting device 120 through the L-shaped connecting rod 150. Rotate in the horizontal direction.
  • the second motor 142 can drive the second bearing 141, and under the action of the second bearing 141, can drive the optical reflection device 120 to rotate in the vertical direction.
  • the backside of the first driving assembly 130, the second driving assembly 140 and the optical reflection device 120 is schematically shown.
  • the first bearing 131 and the second bearing 141 are connected by an L-shaped connecting rod 150. As shown in FIG. 6B, the backside of the first driving assembly 130, the second driving assembly 140 and the optical reflection device 120 is schematically shown.
  • the first bearing 131 and the second bearing 141 are connected by an L-shaped connecting rod 150. As shown in FIG.
  • the moving part that rotates around the axis can only rotate around one axis passing through the moving part, it cannot independently rotate around multiple shafts passing through the moving part.
  • the components 140 can all drive the optical reflection device 120 to rotate, and the first bearing 131 and the second driving component 140 can be connected by means of a connecting rod.
  • the second driving assembly 140 in which the second bearing 141 is connected to the optical reflection device 120, can realize the rotation of the optical reflection device 120 around the second bearing 141. In this way, the optical reflection device 120 can rotate in the vertical direction under the drive of the second bearing 141, and can rotate in the horizontal direction under the drive of the first bearing 131 and the L-shaped connecting rod 150.
  • the embodiment of the application does not limit the location of the camera module 110.
  • the camera module 110 can be installed vertically or horizontally.
  • the camera module 110 is only set vertically. Take an example for illustration.
  • the optical reflection device 120 is a schematic diagram of the light reflection path of the light.
  • the light can be projected to the optical reflection device 120, and the light is reflected into the camera module 110 through the action of the optical reflection device 120. In this way, the camera module 110 can capture images in various directions.
  • the imaging quality of the image captured by the camera module 110 and the range covered by the image are related to the surface shape of the optical reflection device 120.
  • the embodiment of the present application does not limit the surface shape of the optical reflection device 120, and the surface shape of the optical reflection device 120 is as follows One of the surface types: flat, convex, concave, diffractive, and free-form surface.
  • the reflecting surface is a flat surface, which can follow the reflection principle to realize light reflection and ensure that the camera module 110 can effectively image.
  • the optical reflection device 120 can project more light into the camera module 110 than a flat surface.
  • the surface of the optical reflection device 120 is convex, and the angle of the light projected on the optical reflection device 120 is larger than that of a flat surface.
  • the surface of the optical reflection device 120 is a diffractive surface or a free-form surface, compared to a flat surface, the light projected on the optical reflection device 120 can be diffracted or reflected, and the aberration caused by the light imaging can be corrected to ensure the final imaging model. Image quality taken by group 110.
  • the diffractive surface and the free-form surface are a special surface type in optical design. Etching on the surface of a traditional optical element produces a relief structure with two or more step depths, which can form a diffractive optical element (DOE).
  • the reflective surface of the DOE is the diffractive surface, and the DOE can be used as a reflective optical device.
  • the refractive index of blue light is greater than that of red light, while the diffractive surface will be the opposite.
  • the refractive index of red light is greater than that of blue light, so that the chromatic aberration of the optical system can be corrected more conveniently.
  • an optical reflective device with a free-form surface can be formed. This free-form surface is arbitrary, and the parameters of this free-form surface are relatively complex (such as multiple curvatures, etc.), and it also has the advantage of correcting aberrations. .
  • the surface of the optical reflector 120 is concave
  • FIG. 8 it is an optical path diagram when the surface of the optical reflecting device 120 is concave.
  • the optical reflecting device 120 can compress the range of incident light into a smaller range of reflected light and project it to the imaging mold. Group 110. That is to say, the concave optical reflector can compress the light beam. Compared with the flat optical reflector, more light can enter the camera module 110, which increases the amount of light entering the camera module 110 to increase the aperture. Effect.
  • the concave optical reflector will lengthen the optical back focus, which enables the camera module 110 to capture distant scenes (similar to a nearsighted eye with glasses on and see the distance clearly).
  • Table 1 is a comparison table of the aperture and the amount of light entering the optical system composed of the planar optical reflecting device and the concave optical reflecting device and the same camera module 110.
  • the light input amount of the flat optical reflection device is normalized, and the light input amount of the concave optical reflection device is 1.44 times of the light input amount of the flat optical reflection device.
  • Increasing the amount of light can increase the brightness of the image captured by the camera module 110, making the image clearer and brighter.
  • FIG. 9A it is a light path diagram when the surface of the optical reflective device 120 is convex.
  • the optical reflective device 120 can diverge the range of incident light into a larger range of reflected light and project it to the camera module. 110.
  • the convex optical reflector can diverge the light beam.
  • the reflected light has a larger range and enters the camera module 110, which increases the field of view of the camera module 110 and increases the camera.
  • the coverage area of the image taken by the module 110 that is, the convex optical reflective device can be at the same angle, compared with the planar optical camera module 110, which can make the area covered by an image taken by the camera module 110 Bigger.
  • the convex optical reflector will shorten the optical back focus, which enables the camera module 110 to capture close-up scenes (similar to presbyopia, wear glasses and see close-ups).
  • Table 2 is a comparison table of the field of view of the optical system composed of the planar optical reflective device and the convex optical reflective device and the same camera module 110.
  • the field of view of the optical system formed by the convex optical reflector and the camera module 110 is significantly larger than the field of view of the optical system formed by the planar optical reflector and the camera module 110.
  • the optical reflecting device may also be a variable reflector.
  • the surface variable reflector refers to a reflector whose surface shape can be changed according to requirements, such as a micromirror array and a liquid reflector.
  • the embodiment of the present application does not The specific type of the surface variable reflector is limited, and any reflector that can change the surface shape is applicable to the embodiments of the present application.
  • the optical reflection device 120 may be a single-sided coated optical reflection device, that is, one side of the optical reflection device 120 can reflect light (as shown in FIGS. 6A to 6B), and the optical reflection device 120 is also It can be a double-sided coated optical reflective device, that is, both sides of the optical reflective device 120 can reflect light, so that when the optical reflective device 120 rotates, it can quickly switch to the side that can reflect light, thereby ensuring The camera module 110 may be able to take pictures quickly.
  • the double-sided coated optical reflection device 120 has two surfaces capable of reflecting light.
  • the two surfaces can reflect light from opposite directions, that is, they can reflect light from two different directions.
  • the camera module 110 can capture people or objects in two opposite directions through the optical reflective device 120.
  • the optical system can be set in the middle of the two-way sidewalk.
  • the first driving component 130 or the second driving component 140 can drive the optical reflecting device 120 to switch the light reflecting surface so that the reflected light can enter the camera module 110 , To capture pedestrians moving from left to right, or pedestrians moving from right to left.
  • FIG. 9B is a schematic front view of the first driving assembly 130, the second driving assembly 140, and the optical reflecting device 120 when the optical reflecting device 120 is a double-sided coated optical reflecting device.
  • the structure of the first driving component 130, the second driving component 140, the connection relationship between the first driving component 130, the second driving component 140, and the optical reflective device 120 are the same as those of the first driving component 130 and the second driving component shown in FIG. 6A.
  • the structure of the component 140, the connection relationship between the first driving component 130, the second driving component 140 and the optical reflective device 120 are the same. For details, please refer to the foregoing content, and will not be repeated here.
  • FIG. 9C is a schematic diagram of the back of the first driving component 130, the second driving component 140, and the optical reflection device 120 in the case where the optical reflection device 120 is a double-sided coated optical reflection device.
  • the structure of the first driving component 130, the second driving component 140, the connection relationship between the first driving component 130, the second driving component 140, and the optical reflective device 120 are the same as those of the first driving component 130 and the second driving component shown in FIG. 6B.
  • the structure of the component 140, the connection relationship between the first driving component 130, the second driving component 140 and the optical reflective device 120 are the same. For details, please refer to the foregoing content, and will not be repeated here.
  • the back of the optical reflection device 120 shown in FIG. 6B is the back support of the optical reflection device, and a buckle can be provided on the edge of the back support to connect with the second bearing 141.
  • the second driving component 140 drives the optical reflection device 120 to rotate, the back of the optical reflection device 120 does not need to be turned to the camera module 110.
  • the second driving component 140 needs to turn the optical The reflection device 140 rotates by a larger angle.
  • the optical reflection device 120 is a double-sided coating optical reflection device
  • the back of the optical reflection device 120 can be used as a reflection surface to reflect light into the camera module 110
  • the second driving component 140 is driving the optical reflection device.
  • the back of the optical reflective device 120 can also be turned to the camera module 110.
  • 9D it is a front view of the first driving component 130, the second driving component 140, the camera module 110, and the optical reflecting device 120; since the front and back surfaces of the optical reflecting device 120 can be used as reflecting surfaces, the second driving component 140 Only by driving the optical reflection device 140 to rotate a small angle, the light can be reflected into the camera module 110 through the front and back surfaces of the optical reflection device 120, which is simpler and more efficient.
  • the optical system also includes other components. As shown in FIG. 10, the optical system also includes a housing 160 that surrounds the camera module 110 on the outside. The housing 160 can be connected to the camera module 110 to ensure the camera The position of the module 110 can be fixed.
  • the optical system further includes a light-transmitting cover 170, which is connected to the housing 160, and the light-transmitting cover 170 surrounds the first driving assembly 130, the second driving assembly 140 and the optical reflection device 120.
  • the light can be projected onto the optical reflection device 120 through the light-transmitting cover 170.
  • the present application does not limit the material of the light-transmitting cover 170.
  • it may be glass, polystyrene, or other transparent materials.
  • the optical system may further include a bracket, and the bracket may connect the first driving assembly 130 and the camera module 110.
  • FIG. 11 a schematic side view of the optical system, from the first motor 132 in FIG. 11, is connected to a bracket 180, and the bracket 180 can extend upward to be connected to the camera module 110.
  • the average capture speed obtained by measurement can reach 2 frames per second, which is obviously compared to the common dome camera (0.2 frames per second) , The image capture speed has been significantly increased.
  • the camera module 110 is located above the optical reflective device 120 as an example for description. In practical applications, the camera module 110 may also be located below the optical reflective device 120. .
  • the structure in which the camera module 110 is located under the optical reflective device 120 can be applied to a scene where an object or a person under the optical reflective device 120 needs to be monitored or photographed.
  • another optical system provided by this embodiment of the present application includes a camera module 110 fixedly arranged, and the camera module 110 faces the optical reflective device 120 in front.
  • the camera module 110 in FIG. 12 is located under the optical reflection device 120.
  • the first driving assembly 130 can drive the optical reflection device 120 to rotate in the first direction. Driven by the first driving component 130, the optical reflection device 120 can reflect light in different directions into the camera module 110.
  • the camera module 110 can be fixed, that is, the camera module 110 does not rotate or move, and the first driving component only drives the optical reflection device 120 to rotate.
  • the manner in which the first driving assembly 130 drives the optical reflective device 120 and the specific orientation of the first direction can be referred to the foregoing content, and will not be repeated here.
  • the camera module 110 can also be rotated or moved, and the camera module 110 can also be moved or rotated under the drive of the first drive assembly, that is, the first drive assembly can drive the optical reflection
  • the device 120 rotates in the first direction, and can also drive the camera module 110 to rotate in the first direction.
  • the rotation direction of the camera model 110 and the optical reflector 120 are the same.
  • the optical reflector 120 can be changed in position to reflect light in different directions, so that the camera module 110 can be photographed by the optical reflector 120
  • both the optical reflection device 120 and the camera module 110 will move, and the relative position of the optical reflection device 120 and the camera module 110 will not change easily, which is convenient for imaging.
  • FIG. 13 shows the rotation range of the camera module 110 and the optical reflecting device 120 when the first direction is the horizontal direction.
  • the camera The module 110 and the optical reflection device 120 can realize a 360-degree rotation, so that the camera module 110 has a larger shooting range.
  • the rotation range of the camera module 110 and the optical reflection device 120 shown in FIG. 13 is only an example. In practical applications, it can be set according to specific scenarios.
  • the optical system can be installed on the upper end of the display screen. When the display screen is used for video conferences, the optical system can only take pictures of people in the front range of the display screen.
  • the rotation range of the camera module 110 and the optical reflector 120 can be set to an angle of 180 degrees or less.
  • the case where the first direction is the direction of gravity is similar, and will not be repeated here.
  • the rotation range of the camera module 110 and the optical reflection device 120 can also be changed according to specific application scenarios. Therefore, the shooting range of the camera module 110 is wider.
  • the camera module 110 may also be moved or rotated under the drive of other driving components.
  • the camera module 110 may face the optical reflection device 120 or away from the optical reflection device 120 under the other driving components.
  • the distance between the camera module 110 and the optical reflective device 120 is controllable. By changing the distance between the camera module 110 and the optical reflective device 120, the distance between the camera module 110 and the object can be changed. You can flexibly adjust the size of objects or people in the captured images or videos.
  • the first driving assembly 130 may The bearing connected to the camera module 110 is included to ensure that when the first motor 132 drives the optical reflection device 120 to rotate through the first bearing, the camera module 110 can also be driven to rotate through the bearing connected to the camera model 110.
  • the optical reflection device 120 can be driven by the first driving assembly 130 to rotate in one direction, that is, the first direction.
  • the optical system may also include a second driving component 140, which can drive the optical reflection device 120 rotates in the second direction; the first direction and the second direction are different directions.
  • the structure of the first driving component 130 is similar to that of the second driving component 140. For details, please refer to the structure of the first driving component 130, which will not be described here.
  • the camera module 110 can take pictures through the optical reflection device 120 A picture or video within a certain range to a specific height (the height is related to the height set by the camera module 110), and the range is related to the angle of rotation of the optical reflector 120.
  • the optical reflection device 120 can rotate 360 degrees in a horizontal direction, and the camera module 110 can capture people or objects around at a certain height.
  • the camera module 110 can take pictures or videos of different heights through the optical reflection device 120.
  • the range of the height is related to the angle at which the optical reflector 120 rotates in the vertical direction. The larger the angle of the optical reflector 120 rotates in the vertical direction, the greater the range of the height, and the camera module 110 can capture larger images. Pictures or videos within the height range.
  • the optical reflection device 120 can rotate simultaneously in the first direction and the second direction, which can effectively expand the rotation range of the optical reflection device 120, and further, can expand the field of view of the camera module 110 and expand the shooting range.
  • the rotation process of the first driving component 130 driving the optical reflection device 120 and the rotation process of the second driving component 140 driving the optical reflection device 120 can be referred to the foregoing content, and will not be repeated here.
  • the camera module 110 can be fixed, or it can be moved or rotated under the drive of the second drive assembly, that is, the second drive assembly can drive the optical reflector 120 along the second direction. Rotation can also drive the camera module 110 to rotate in the second direction.
  • the rotation direction of the camera module 110 and the optical reflector 120 are the same.
  • the optical reflector 120 and the camera module 110 can be rotated together.
  • the optical reflector 120 can reflect light in different directions, so that the camera module 110 can capture images or videos of different angles through the optical reflector 120; the camera module 110 can also move or rotate in a direction different from the first direction or the second direction under the drive of other driving components.
  • the first driving component 130 can drive the optical reflection device 120 to rotate in a horizontal direction
  • the second driving component 140 drives the optical reflection device 120 and the camera module. 110 rotates in the vertical direction.
  • the second driving component 140 may include a bearing connected to the camera model 110 to ensure that the second motor 142 drives the optical reflective device through the second bearing 141
  • the camera model 110 can also be driven to rotate through a bearing connected to the camera model 110.
  • the traditional camera device When the traditional camera device is shooting, it can be externally placed on the upper part of the device (such as a monitor, TV screen), and the camera device can be rotated to achieve shooting.
  • the shooting range of the camera device is related to the angle of rotation of the camera device.
  • the diameter of the camera device when it rotates is equal to the length of the camera device, which will result in a larger space occupied by the camera device on the upper part of the device (that is, the rotation space of the camera device).
  • the upper part of the display, TV screen needs to be rotated laterally under the drive of a horizontal motor to capture people or objects around the device.
  • the rotation space of the device becomes larger. In the optical system shown in FIGS.
  • the camera module 110 since the camera module 110 is located below the optical reflector 120, the camera module 110 may not rotate, and the shooting range of the camera module 110 is the same as the rotating range of the optical reflector 120 Relatedly, the rotation of the optical reflection device 120 in different directions can effectively expand the shooting range of the camera module 110.
  • the volume occupied by the entire optical system is related to the rotation range of the optical reflection device 120, and the optical reflection device 120 is located in the camera module 110.
  • the optical reflector 120 and camera module 110 are arranged vertically, which can shorten the lateral width of the entire optical system. Compared with the volume occupied by the traditional camera device installed on the device, the optical system The volume can be reduced to a large extent, making it possible for the optical system to be built into the device.
  • the optical reflection device 120 can rotate in the first direction and the second direction, and the rotation range is relatively large, which can effectively expand the field of view of the camera module 110 and increase the shooting range.
  • the optical system shown in Figures 12 to 15 can be applied to a display screen or a display, set on the top of the display screen or the display, or embedded in the display screen or the upper part of the display.
  • the optical system as described in FIGS. 12 to 15 can also be set in other devices, and only a display screen or a display is used as an example for illustration.
  • FIG. 17 for a structural diagram of the optical system embedded in the upper part of the display screen
  • FIG. 17 is a cross-sectional view of the display screen.
  • the optical system is located on the upper part of the display screen.
  • the second motor 142 in the second drive assembly 140 drives the second bearing 141, so that the optical reflection device 120 can be rotated in the vertical direction
  • the first driving assembly 130 is located in the lower part of the entire optical system
  • the first bearing 131 is driven by the first motor 132 in the first driving assembly 130
  • the first bearing 131 drives the optics.
  • the reflection device 120 and the camera module 110 rotate together in a horizontal direction.
  • An embodiment of the present application also provides an electronic device, which includes a processor and any one of the optical systems described in the foregoing content.
  • the processor can obtain an image taken by the camera module 110 in the optical system.
  • the processor can also process the image, such as performing correction, encoding and other operations.
  • the electronic device also includes a communication interface for transmitting data with other devices.
  • the processor can transmit acquired images or processed images to other devices through the communication interface.

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Abstract

一种光学系统、电子设备以及显示装置，光学系统包括摄像模组(110)、光学反射器件(120)、和第一驱动组件(130)。摄像模组(110)位置固定。摄像模组(110)与光学反射器件(120)的正面相对，光学系统能够将投射到光学反射器件(120)的光反射到摄像模组(110)中，摄像模组(110)可以借助反射到摄像模组(110)的光抓拍图像。第一驱动组件(130)能够带动光学反射器件(120)沿第一方向转动。光学系统中，摄像模组(110)的位置是固定的，通过第一驱动组件(130)可以调整光学反射器件(120)的方向，使得摄像模组(110)抓拍到各个方位的图像，摄像模组(110)不再需要转动，有效缩短摄像模组(110)拍摄图像的时间。在整个光学系统中，需要运动的器件为光学反射器件(120)以及第一驱动组件(130)，运动的负载较小，有利于实现高效运动，便于摄像模组(110)抓拍图像。

Description

一种光学系统、电子设备以及显示装置
相关申请的交叉引用
本申请要求在2020年03月13日提交中国专利局、申请号为PCT/CN2020/079372、申请名称为“一种光学系统以及电子设备”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
本申请涉及电子器件技术领域，尤其涉及一种光学系统、电子设备以及显示装置。
背景技术
为保证城市安全，在城市的一些场所中会设置监控设备，单一摄像机的监控设备所能监控的范围有限，为了进一步增大监控范围，出现了多摄像机监控设备。
但多摄像机监控设备所能增大的监控范围仍然有限，且由于摄像机数量较多也增加了部署难度。而具备快速周扫功能的摄像机监控设备(如球机)由于其监控范围更大、部署灵活等优点取代了多摄像机监控设备。
以球机为例，球机中摄像机能够较高速的进行360度旋转，也即能够实现快速周扫的功能。通常，球机在抓拍图像时，需要摄像机旋转到特定位置并在稳定的状态下进行拍摄。
由于球机中的摄像机旋转时，需要驱动摄像机、补光模组以及相关驱动组件(如电机和轴承)一同进行运动，负载较大。等摄像机到旋转到特定位置时，由于摄像机、补光模组以及相关驱动组件(如电机和轴承)自身惯性，需要较长的时间才能使得摄像机达到稳定的状态，也就是说，球机在进行周扫时，每进行一次抓拍都需要较长时间。
综上，具备快速周扫功能的摄像机监控设备中驱动摄像机旋转的方式限制了该类监控设备的抓拍速度。
发明内容
本申请提供一种光学系统、电子设备以及显示装置，用以提高具备快速周扫功能的摄像机监控设备抓拍速度。
第一方面，本申请实施例提供了一种光学系统，该光学系统包括摄像模组、光学反射器件、和第一驱动组件。摄像模组在该光学系统中的位置固定，不会发生转动或移动。摄像模组与光学反射器件的正面相对，光学反射系统能够将投射到光学反射器件的光反射到摄像模组中，这样，摄像模组可以借助反射到摄像模组的光抓拍图像。第一驱动组件能够改变光学反射器件的位置，带动光学反射器件沿第一方向转动。
通过上述光学系统，摄像模组的位置是固定的，通过第一驱动组件可以调整光反射器件的方向，使得摄像模组抓拍到各个方位的图像，摄像模组不再需要转动，能够有效缩短摄像模组拍摄图像的时间。另外，在整个光学系统中，需要运动的器件为光学反射器件以及第一驱动组件，在运动的过程中，负载相对较小，有利于实现高效运动，便于摄像模组抓拍图像。
一种可能的实现方式，光学系统中除了第一驱动组件，还可以包括其他驱动组件，以 实现光学反射器件在除第一方向外的其他方向转动。示例性的，光学系统还包括第二驱动组件，第二驱动组件可以带动光学反射器件沿第二方向转动；第一方向和第二方向不同。
通过上述光学系统，光学反射器件能够在多个不同的方向上转动，使得光学反射器件能够反射各个不同方向的光，使得摄像模组能够抓拍到多个方位的图像，抓拍范围更大。
一种可能的实现方式，摄像模组的设置方向可以沿水平方向(与重力方向垂直的方向)固定设置，也可以是重力方向固定设置。
通过上述光学系统，摄像模组设置在固定方向上，设置位置更加灵活。
一种可能的实现方式，摄像模组位于光学反射器件的下方，也可以为所欲光学反射器的上方，摄像模组与光学反射器件的位置有多种，能够适用于不同的场景，例如当摄像模组位于光学反射器件的上方时，能够适用于监控场景，如交通道路的监控等；当摄像模组位于光学反射器件的下方时，能够适用于远程会议，如设置在显示装置上部，拍摄参会人员等。
一种可能的实现方式，第一驱动组件带动光学反射器件的方式有许多中，例如可以利用电机带动光学反射器件转动。示例性的，第一驱动组件中包括第一电机和第一轴承；第一电机用于驱动第一轴承，以使第一轴承带动光学反射器件沿第一方向转动。
通过上述光学系统，第一驱动组件通过第一电机和第一轴承能够较为方便的带动光学反射器件转动。
一种可能的实现方式，与第一驱动组件类似，第二驱动组件包括第二电机和第二轴承；第二轴承连接光学反射器件；第二电机用于驱动第二轴承，以使第二轴承带动光学反射器件沿第二方向转动。
通过上述光学系统，第二驱动组件通过第二电机和第二轴承能够较为方便的带动光学反射器件转动。
一种可能的实现方式，第一轴承可以连接光学反射器件的背面或侧面，这样便于第一电机驱动光学反射器件转动。
一种可能的实现方式，第一轴承也可以通过连杆与第二电机连接，利用连杆能够使得光学反射器件能够在两个不同的方向上转动。
一种可能的实现方式，光学反射器件的面型可以是固定的，也即光学反射器件可以为面型固定反射镜，面型固定反射镜的面型为下列之一：
平面、凸面、凹面、衍射面、自由曲面。
通过上述光学系统，光学反射器件的面型有多种选择，能够保证摄像模组不同的成像需求。
一种可能的实现方式，光学反射器件为面型可变反射镜，面型可变反射镜的可以为下列之一：
微镜阵列、液体反射镜。
通过上述光学系统，面型可变反射镜由于其能改变自身的反射面，适用于多种不同的应用场景，且控制方式更加灵活，也扩展了光学系统的应用范围。
一种可能的实现方式，光学反射器件可以为单面镀膜的光学反射器件，也就是说，只有一面能够反射光线，光学反射器件也可以为双面镀膜的光学反射器件，也就是说，两面均能够反射光线，双面镀膜的光学反射器件由于两面均能够反射光线，能够第一驱动组件和第二驱动组件在带动光学反射器件时，仅需转动较小的角度就能够转动到能够反射光线 的一面，能够减少光线反射器件的转动时间，且双面镀膜反射器件所能反射的光线的范围也会增加，使得摄像模组的拍摄范围增大。
一种可能的实现方式，第一方向和第二方向垂直。光学反射器件能够在互相垂直的两个方向发生转动，使得光学反射器件能够实现全方位转动，进一步保证摄像模组的抓拍范围。
一种可能的实现方式，第二方向可以为重力方向。也即光学反射器件的一个转动方向为重力方向。
一种可能的实现方式，第二轴承连接反射光学器件的侧面或背面。
通过上述光学系统，第二轴承可以连接光学反射器件的背面或侧面，这样便于第二电机驱动光学反射器件转动。
一种可能的实现方式，光学系统还包括支架，第一驱动组件通过支架连接摄像模组。
通过上述光学系统，第一驱动组件能够得到支撑，以便可以驱动光学反射器件转动。
一种可能的实现方式，光学系统还包括外壳，外壳位于摄像模组外侧。
通过上述光学系统，外壳设置在摄像模组外侧，能够保护摄像模组不被损坏。一种可能的实现方式，光学系统还包括透光外罩，透光外罩与外壳连接，位于第一驱动组件、以及光学反射器件外侧。
通过上述光学系统，透光外罩在保证光学反射器件能够正常工作的前提下，能够对光学系统中的其他组件进行保护。
第二方面，本申请实施例提供了一种电子设备，包括处理器及摄像装置，所述摄像装置包括第一方面以及第一方面任一可能的实现方式中的光学系统。
第三方面，本申请实施例提供了一种光学系统，该光学系统包括摄像模组、光学反射器件、和第一驱动组件。摄像模组与光学反射器件的正面相对，光学反射系统能够将投射到光学反射器件的光反射到摄像模组中，这样，摄像模组可以借助反射到摄像模组的光抓拍图像。第一驱动组件能够改变光学反射器件的位置，带动光学反射器件沿第一方向转动。摄像模组可以不进行转动，能够有效缩短摄像模组拍摄图像的时间。在整个光学系统中，需要运动的器件为光学反射器件以及第一驱动组件，在运动的过程中，负载相对较小，有利于实现高效运动，便于摄像模组抓拍图像。
一种可能的实现方式，光学系统中除了第一驱动组件，还可以包括其他驱动组件，以实现光学反射器件在除第一方向外的其他方向转动。示例性的，光学系统还包括第二驱动组件，第二驱动组件可以带动光学反射器件沿第二方向转动；第一方向和第二方向不同。光学反射器件能够反射各个不同方向的光，使得摄像模组能够抓拍到多个方位的图像，抓拍范围更大。
一种可能的实现方式，摄像模组的设置方向可以沿水平方向(与重力方向垂直的方向)设置，也可以沿重力方向设置。摄像模组的设置位置较为灵活适用于不同的应用场景。
一种可能的实现方式，第一驱动组件带动光学反射器件的方式有许多种，例如可以利用电机带动光学反射器件转动。示例性的，第一驱动组件中包括第一电机和第一轴承；第一电机用于驱动第一轴承，以使第一轴承带动光学反射器件沿第一方向转动。第一驱动组件也可以采用类似的方式带动摄像模组进行转动。这种方式更加简单、方便。
一种可能的实现方式，与第一驱动组件类似，第二驱动组件包括第二电机和第二轴承；第二轴承连接光学反射器件；第二电机用于驱动第二轴承，以使第二轴承带动光学反射器 件沿第二方向转动。第二驱动组件也可以采用类似的方式带动摄像模组进行转动。这种方式更加简单、方便。
一种可能的实现方式，第一轴承可以连接光学反射器件的背面或侧面，这样便于第一电机驱动光学反射器件转动。
一种可能的实现方式，第一轴承也可以通过连杆与第二电机连接，利用连杆能够使得光学反射器件能够在两个不同的方向上转动。
一种可能的实现方式，光学反射器件的面型可以是固定的，也即光学反射器件可以为面型固定反射镜，面型固定反射镜的面型为下列之一：
平面、凸面、凹面、衍射面、自由曲面。
一种可能的实现方式，光学反射器件为面型可变反射镜，面型可变反射镜的可以为下列之一：
微镜阵列、液体反射镜。
一种可能的实现方式，光学反射器件可以为单面镀膜的光学反射器件，也就是说，只有一面能够反射光线，光学反射器件也可以为双面镀膜的光学反射器件，也就是说，两面均能够反射光线，双面镀膜的光学反射器件由于两面均能够反射光线，能够第一驱动组件和第二驱动组件在带动光学反射器件时，仅需转动较小的角度就能够转动到能够反射光线的一面，能够减少光线反射器件的转动时间，且双面镀膜反射器件所能反射的光线的范围也会增加，使得摄像模组的拍摄范围增大。
一种可能的实现方式，第一方向和第二方向垂直。光学反射器件能够在互相垂直的两个方向发生转动，使得光学反射器件能够实现全方位转动，进一步保证摄像模组的抓拍范围。
一种可能的实现方式，第二方向可以为重力方向。也即光学反射器件的一个转动方向为重力方向。
一种可能的实现方式，第二轴承连接反射光学器件的侧面或背面。
通过上述光学系统，第二轴承可以连接光学反射器件的背面或侧面，这样便于第二电机驱动光学反射器件转动。
一种可能的实现方式，光学系统还包括支架，第一驱动组件通过支架连接摄像模组。
通过上述光学系统，第一驱动组件能够得到支撑，以便可以驱动光学反射器件转动。
一种可能的实现方式，光学系统还包括外壳，外壳位于摄像模组外侧。
一种可能的实现方式，光学系统还包括透光外罩，透光外罩与外壳连接，位于第一驱动组件、以及光学反射器件外侧。
第四方面，本申请实施例提供了一种电子设备，包括处理器及摄像装置，所述摄像装置包括第二方面以及第二方面任一可能的实现方式中的光学系统。
第五方面，本申请实施例提供了一种显示装置，包括第二方面以及第二方面任一可能的实现方式中的光学系统，该光学系统位于所述显示装置的上部。这里并不限定显示装置的类型，凡事具备显示功能的设备均适用于本申请实施例，例如，该显示装置可以为电视机、显示屏、智慧屏等设备。
附图说明
图1A为一种球机的设置示意图；
图1B为一种球机的结构示意图；
图2为本申请提供的一种光学系统的结构示意图；
图3A为本申请提供的第一驱动组件与光学反射器件的正面示意图；
图3B为本申请提供的第一驱动组件与光学反射器件的背面示意图；
图4A为本申请提供的第一驱动组件与光学反射器件的正面示意图；
图4B为本申请提供的第一驱动组件与光学反射器件的背面示意图；
图4C为本申请提供的第一轴承与光学反射器件连接示意图；
图5为本申请提供的一种光学系统的结构示意图；
图6A为本申请提供的第一驱动组件、第二驱动组件与光学反射器件的正面示意图；
图6B为本申请提供的第一驱动组件、第二驱动组件与光学反射器件的背面示意图；
图7A～7C为本申请提供的光学反射器件对光的反射光路示意图；
图8为本申请提供的光学反射器件的面型为凹面时的光路图；
图9A为本申请提供的光学反射器件的面型为凸面时的光路图；
图9B为本申请提供的第一驱动组件、第二驱动组件与光学反射器件的正面示意图；
图9C为本申请提供的第一驱动组件、第二驱动组件与光学反射器件的背面示意图；
图9D为本申请提供的第一驱动组件、第二驱动组件、摄像模组与光学反射器件的背正面示意图；
图10为本申请提供的一种光学系统的结构示意图；
图11为本申请提供的一种光学系统的侧面结构示意图；
图12为本申请提供的一种光学系统的结构示意图；
图13为本申请提供的一种光学系统中光学反射器件和摄像模组的转动方向示意图；
图14为本申请提供的一种光学系统的结构示意图；
图15为本申请提供的一种光学系统中光学反射器件和摄像模组的转动方向示意图；
图16为一种摄像器件设置位置示意图；
图17为本申请提供的一种光学系统的剖面结构示意图。
具体实施方式
如图1A所示为球机的设置示意图，球机固定设置在一定高度，球机中的摄像机可以进行360度的转动，进而拍摄到球机所在场所来自各个方向的人流。
如图1B所示为球机的结构示意图，图1B中示出了球机中包括的主要部件，如摄像机和两个电机，在这两个电机的带动下摄像机可以进行旋转。
而在摄像机旋转的过程中，整体的负载几乎包括了球机的绝大部分部件(如电机、以及摄像机等)，负载较重，经统计球机平均抓拍速度为0.2帧每秒，也就是说球机每五秒可拍摄一帧图像，作为监控设备，该抓拍速度也仅适用于人流量较少的场所，当人流量较多时，抓拍速度较小，会导致漏拍，并不能达到较佳的监控效果。
为此，本申请实施例提供了一种光学系统，该光学系统中包括能够捕获图像的摄像模组、光学反射器件以及第一驱动组件，在该光学系统中，光学反射器件能够将光反射进入 到固定设置的摄像模组中，摄像模组可以通过该光学反射器件进行抓拍。而第一驱动组件能够驱动光学反射器件运动，这样光学反射器件能够对不同方向的光进行反射，摄像模组由此可以抓拍到不同方位的图像。在这样的光学系统中，摄像模组相对固定，只需调整光反射器件的方向，就可使得摄像模组抓拍到各个方位的图像，省略了摄像模组转动以及达到稳定状态的时间，能够有效缩短摄像模组拍摄图像的时间。另外，在整个光学系统中，需要进行运动的器件为光学反射器件以及第一驱动组件，在运动的过程中，负载相对较小，能够实现高效运动，也便于摄像模组抓拍图像。
下面结合附图，对本申请实施例提供的一种光学系统进行说明，参见图2，该光学系统中包括摄像模组110、光学反射器件120以及第一驱动组件130。
摄像模组110固定设置，摄像模组110与光学反射器件120正面相对。图2中摄像模组110位于光学反射器件120的上方。
光学反射器件120能够将投射到光学反射器件120上的光反射进入摄像模组110，摄像模组110可以通过光学反射器件120捕获图像，也就是说，摄像模组110可以利用进入摄像模组110中的光进行成像。
第一驱动组件130可以带动光学反射器件120沿第一方向转动。在第一驱动组件130的带动下，光学反射器件120能够将不同方向的光反射进入摄像模组110。
本申请实施例并不限定第一驱动组件130带动光学反射器件120的方式，例如第一驱动组件130可以通过磁力作用带动光学反射器件120进行转动(如利用磁极之间的作用力驱动光学反射器件120进行转动)，第一驱动组件130也可以利用电磁场带动光学反射器件120进行转动(如利用电流与磁场之间的作用驱动光学反射器件120进行转动)。又例如，第一驱动组件130也可以通过机械方式(如扭簧、电机等)带动光学反射器件120进行转动。
本申请实施例并不限定第一方向的具体指向，例如第一方向可以是重力方向(在本申请实施例中也可称为垂直方向、竖直方向或竖直转动方向)，也可以是与重力方向呈一定角度的方向，如水平方向(与重力方向呈90度，水平方向也可以称为水平转动方向)。
下面以第一方向为水平方向为例，对本申请实施例提供的第一驱动组件130的结构进行说明，如图3A所示为第一驱动组件130与光学反射器件120的正面示意图，第一驱动组件130设置在光学反射器件120的下方，与光学反射器件120的背面相对，第一驱动组件130包括第一轴承131以及第一电机132，第一轴承131连接光学反射器件120。
如图3B所示,为第一驱动组件130与光学反射器件120的背面示意图，第一轴承131连接在光学反射器的背面。
第一电机132可以驱动第一轴承131，使得第一转轴可以水平方向进行转动，在第一轴承131的作用下可以带动光学反射器件120沿水平方向转动。
当光学反射器件120沿水平方向转动时，光学反射器件120可以在水平面上实现360度的转动，如此，在转动的过程中，各个方向的光均可投射到光学反射器件120上，摄像模组可通过光学反射器件120可以捕捉到水平面上各个方位的图像。且在捕获图像的过程中，摄像模组110并不需要被转动，有效的缩短了捕获图像的时间。
下面再以第一方向为垂直方向为例，对本申请实施例提供的第一驱动组件130的结构进行说明，如图4A所示，第一驱动组件130设置在光学反射器件120的侧面，第一驱动组件130包括第一电机132以及第一轴承131，第一轴承131连接光学反射器件120。如 图4B所示，为第一驱动组件130与光学反射器件120的背面示意图，第一轴承131连接在光学反射器件120侧面。
为了更加清楚光学反射器件120与第一轴承131的连接方式，可参见4C所示，光学反射器件120的侧面设置有卡扣133，第一轴承131可以卡在卡扣133上。
第一电机132可以驱动第一轴承131，使得第一轴承131可以在垂直方向上转动，这样，在第一轴承131的作用下可以带动光学反射器件120沿垂直方向转动。
当光学反射器件120沿垂直方向转动时，光学反射器件120可以在垂直面(也即重力面)上实现360度的转动，如此，在转动的过程中，各个方向的光均可投射到光学反射器件120上，摄像模组110可通过光学反射器件120可以捕捉到垂直面上各个方位的图像。且在捕获图像的过程中，摄像模组110不再参于转动，有效的缩短了捕获图像的时间。
在如图3A～3B和图4A～4C所示的光学系统，摄像模组110可以拍摄到在第一方向上各个方向的图像，为了能够进一步扩大摄像模组110的拍摄范围，光学系统中还可以包括另一个驱动组件，以带动光学反射器件120可以在另一个方向上进行转动。
如图5所示，为本申请实施例提供的一种光学系统，该光学系统包括摄像模组110、光学反射器件120、第一驱动组件130以及第二驱动组件140，第二驱动组件140可以带动光学反射器件120沿第二方向转动；第一方向和第二方向为不同的方向。
第一驱动组件130与第二驱动组件140的结构类似，具体可参见第一驱动组件130的结构，此处不再说明。与第一驱动组件130类似，本申请实施例并不限定第二驱动组件140带动光学反射器件120的方式，也不限定第二方向的具体指向。
第一驱动组件130带动光学反射器件120的转动过程与第二驱动组件140带动光学反射器件120的转动过程可以分开执行，也即在同一时间，只有一个驱动组件带动光学反射器件120进行转动。
第一驱动组件130带动光学反射器件120的转动过程与第二驱动组件140带动光学反射器件120的转动过程也可以是同时进行，也即在同一时间，一个驱动组件带动光学反射器件120进行转动的过程中，另一个驱动组件也可以带动光学反射器件120进行转动。
为了使得第一驱动组件130和第二驱动组件140均能够带动光学反射器件120进行转动，第一驱动组件130和第二驱动组件140之间可建立连接。
下面以第一方向为水平方向(也即重力方向)、第二方向为垂直方向为例，对第一驱动组件130第二驱动组件140、与光学反射器件120的连接方式进行说明。
如图6A所示，为第一驱动组件130、第二驱动组件140与光学反射器件120的正面示意图；第一驱动组件130包括第一电机132以及第一轴承131，第一轴承131连接光学反射器件120；第二驱动组件140包括第二电机142以及第二轴承141，第二轴承141连接光学反射器件120。第一轴承131与第二轴承141可以通过连杆连接。如图6A所示，第二轴承141连接光学反射器件120的侧面。第一轴承131通过L型连杆150与第二电机142连接，在第一电机132驱动第一轴承131，第一轴承131通过L型连杆150带动第二驱动组件140和光学反射器件120在水平方向上转动。
第二电机142可以驱动第二轴承141，在第二轴承141的作用下可以带动光学反射器件120沿垂直方向转动。
如图6B所示，为第一驱动组件130、第二驱动组件140与光学反射器件120的背面示 意图，第一轴承131与第二轴承141通过L型连杆150连接。
由于绕轴转动的运动部件，只能绕一个穿过该运动部件的轴进行转动，并不能独立的绕多个穿过该运动部件的轴进行转动，为了保证第一驱动组件130和第二驱动组件140均能够带动光学反射器件120进行转动，可以借助连杆，连接第一轴承131和第二驱动组件140。L型连杆150的一端连接第一轴承131，可确保L型连杆150上的所有部件(包括光学反射器件120)在第一轴承131的带动下能够旋转；L型连杆150另一端安装第二驱动组件140，其中第二轴承141连接光学反射器件120，可实现光学反射器件120绕第二轴承141的旋转。这样，光学反射器件120即可在第二轴承141的带动下在垂直方向上旋转，又可在第一轴承131和L型连杆150的带动下在水平方向上旋转。
需要说明的是，本申请实施例并不限该连杆的形状，在图6A以及6B中仅是以连杆为L型连杆150为例进行说明。
在本申请实施例中并不限定摄像模组110的设置位置，示例性的，摄像模组110可以垂直设置，也可以水平设置，在本申请实施例中仅是以摄像模组110为垂直设置为例进行说明。
如图7A～7C所示，为光学反射器件120对光的反射光路示意图，图7A～7C中通过第一驱动组件130以及第二驱动组件140，可以调整光学反射器件的位置，使得不同方向的光可以投射到光学反射器件120，通过光学反射器件120的作用将光反射进入摄像模组110。这样，摄像模组110可以拍摄到各个方位的图像。
摄像模组110捕获的图像的成像质量以及图像所覆盖的范围与光学反射器件120的面型有关，本申请实施例并不限定光学反射器件120的面型，光学反射器件120的面型为下面面型之一：平面、凸面、凹面、衍射面、自由曲面。
光学反射器件120的面型为平面时，反射面为一个平面，可以遵循反射原理，实现光的反射，保证实现摄像模组110可以有效成像。
光学反射器件120的面型为凹面时，相较于平面，光学反射器件120能够将更多的光投射到摄像模组110中。
光学反射器件120的面型为凸面，相较于平面，投射到光学反射器件120上光的角度更大。
光学反射器件120的面型为衍射面或自由曲面时，相较于平面，对投射到光学反射器件120上的光线能够实现衍射或反射，能够校准光线成像时造成的像差，保证最终摄像模组110拍摄的图像质量。
其中，衍射面和自由曲面是光学设计中的一种特殊面型。在传统的光学元件表面刻蚀产生两个或多个台阶深度的浮雕结构，可以形成衍射光学元件(diffractive optical elements,DOE)，该DOE的反射面即为衍射面，该DOE可以作为反射光学器件。对传统透镜，蓝光的折射率大于红光，而衍射面会反之，红光折射率大于蓝光，从而能够更加方便的校正光学系统的色差。通过非连续加工的加工流程可以形成具有自由曲面的光学反射器件，这种自由曲面具备任意性，该种自由曲面的参数也相对复杂(如具备多个曲率等)，同样具有校正像差的优点。
下面对以凹面光学反射器件以及凸面光学反射器件对光反射的方式为例，对不同光学反射器件120对摄像模组110捕获的图像的影响进行说明。
(1)光学反射器件120的面型为凹面
如图8所示，为光学反射器件120的面型为凹面时的光路图，反射面为凹面时，光学反射器件120能够将入射光的范围压缩为范围更小的反射光，投射到摄像模组110。也就是说，凹面光学反射器件能够压缩光束，相较于平面的光学反射器件，更多的光能够进入到摄像模组110中，增大了摄像模组110的进光量，达到增大光圈的效果。另外，凹面光学反射器件会拉长光学后焦，能够使得摄像模组110拍摄到远处的景物(类似近视眼的带上眼镜后看清远处)。
表1为平面光学反射器件以及凹面光学反射器件与相同摄像模组110所构成的光学体系的光圈以及进光量对比表。
表1
Figure PCTCN2020114564-appb-000001
其中，将平面光学反射器件的进光量进行归一，凹面光学反射器件的进光量为平面光学反射器件的进光量的1.44倍。进光量增大能够提高摄像模组110捕捉的图像的亮度，使得图像更加清晰、明亮。
(2)光学反射器件120的面型为凸面
如图9A所示，为光学反射器件120的面型为凸面时的光路图，反射面为凸面时，光学反射器件120能够将入射光的范围发散为范围更大反射光，投射到摄像模组110。也就是说，凸面光学反射器件能够发散光束，相较于平面光学反射器件，反射光的范围更大，进入到摄像模组110中，增大了摄像模组110的视场，增大了摄像模组110所拍摄的图像的覆盖范围，也即能够在相同角度下，凸面光学反射器件，相较于平面的光学摄像模组110，能够使得摄像模组110拍摄的一张图像所覆盖的范围更大。另外，凸面光学反射器件会缩短光学后焦，能够使得摄像模组110拍摄到近处的景物(类似老花眼的带上眼镜后看清近处)。
表2为平面光学反射器件以及凸面光学反射器件与相同摄像模组110所构成的光学体系的视场对比表。
表2
面型 摄像模组110焦距 视场
平面 50mm 10.4°
凸面 50mm 11.44°
可以看出，凸面光学反射器件与摄像模组110构成的光学体系的视场明显大于平面光学反射器件与摄像模组110构成的光学体系的视场。
可选的，光学反射器件也可以为型可变反射镜，面型可变反射镜是指面型可以根据需求进行改变的反射镜，例如微镜阵列、液体反射镜，本申请实施例并不限定面型可变反射镜的具体类型，凡是能够实现面型改变的反射镜均适用于本申请实施例。
在本申请实施例中，光学反射器件120可以是单面镀膜的光学反射器件，也即该光学 反射器件120的一面可以对光线进行反射(如图6A～6B所示)，光学反射器件120也可以是双面镀膜的光学反射器件，也即该光学反射器件120的两面均可以对光线进行反射，这样光学反射器件120在转动时，能够较快的切换到能够进行光线反射的一面，进而保证摄像模组110可以能够快速进行拍摄。
双面镀膜的光学反射器件120具备两个能够进行光线反射的面，这两个面能够反射来自相对方向的光线，也即能够反射两个不同方向的光线。使得摄像模组110通过光学反射器件120能够拍摄到两个相对方向的人或物。
以双向人行道为例，在该双向人行道上，行人可以从左至右行进，也可以从右至左行进，为了能够拍摄到这两个相对方向(从左至右、以及从右至左)的行人，该光学系统可以设置在双向人行道中间的位置，第一驱动组件130或第二驱动组件140可以带动光学反射器件120切换进行光线反射的面，以使得反射的光线能够进入摄像模组110中，拍摄到从左至右行进的行人，或从右至左行进的行人。
参见图9B为光学反射器件120为双面镀膜的光学反射器件的情况下，为第一驱动组件130、第二驱动组件140与光学反射器件120的正面示意图。第一驱动组件130、第二驱动组件140的结构、第一驱动组件130、第二驱动组件140与光学反射器件120之间的连接关系与图6A所示的第一驱动组件130、第二驱动组件140的结构、第一驱动组件130、第二驱动组件140与光学反射器件120之间的连接关系相同，具体可参见前述内容，此处不再赘述。
参见图9C为光学反射器件120为双面镀膜的光学反射器件的情况下，为第一驱动组件130、第二驱动组件140与光学反射器件120的背面示意图。第一驱动组件130、第二驱动组件140的结构、第一驱动组件130、第二驱动组件140与光学反射器件120之间的连接关系与图6B所示的第一驱动组件130、第二驱动组件140的结构、第一驱动组件130、第二驱动组件140与光学反射器件120之间的连接关系相同，具体可参见前述内容，此处不再赘述。
需要说明的是，图6B所示的光学反射器件120的背面为光学反射器件的背面支架，在该背面支架的边缘可以设置卡扣与第二轴承141连接。第二驱动组件140在驱动该光学反射器件120转动时，光学反射器件120的背面无需转向摄像模组110，为了保证能够拍摄到较大范围内的人或物，第二驱动组件140需要将光学反射器件140转动较大角度。
在图9C中，由于光学反射器件120为双面镀膜的光学反射器件，该光学反射器件120的背面能够作为反射面，将光线反射进入摄像模组110中，第二驱动组件140在驱动该光学反射器件120转动时，光学反射器件120的背面也可以转向摄像模组110。参见图9D，为第一驱动组件130、第二驱动组件140、摄像模组110与光学反射器件120的正面示意图；由于光学反射器件120的正、反面均可以作为反射面，第二驱动组件140只需驱动光学反射器件140转动较小的角度，就能够通过光学反射器件120的正、反面将光线反射进入摄像模组110，实现方式更加简单，高效。
作为监控设备，该光学系统还包括其他部件，如图10所示，该光学系统还包括外壳160，该外壳160围绕摄像模组110在外侧，该外壳160可以与摄像模组110连接，保证摄像模组110的位置可以固定。
如图10所示，该光学系统还包括透光外罩170，该透光外罩170与外壳160连接，透光外罩170围绕第一驱动组件130、第二驱动组件140以及光学反射器件120。光可以通 过透光外罩170投射到光学反射器件120上。本申请并不限定透光外罩170的材质，例如可以是玻璃、聚苯乙烯，也可以其他透明材料。
作为一种可能的实施方式，该光学系统中还可以包括支架，该支架可以连接第一驱动组件130与摄像模组110。
如图11所示，该光学系统中的侧面示意图，从图11中第一电机132连接支架180，该支架180可以向上延伸，与摄像模组110连接。
采用本申请实施例所提供的光学系统，当光学反射器件120的面型为平面时，测量所得的平均抓拍速度可以达到2帧每秒，显然相较于常见的球机(0.2帧每秒)，图像抓拍速度有明显增大。
在如图2～11所示的光学系统中，均是以摄像模组110位于光学反射器件120的上方为例进行说明，在实际应用中，摄像模组110也可以位于光学反射器件120的下方。
摄像模组110位于光学反射器件120的下方的结构可以应用在需要对光学反射器件120下方的物体或人进行监控或拍摄的场景中。
如图12所示，为本申请实施例提供的另一种光学系统，该光学系统中包括摄像模组110固定设置，摄像模组110与光学反射器件120正面相对。图12中摄像模组110位于光学反射器件120的下方。
第一驱动组件130可以带动光学反射器件120沿第一方向转动。在第一驱动组件130的带动下，光学反射器件120能够将不同方向的光反射进入摄像模组110。
在该光学系统中，摄像模组110可以固定的，也即摄像模组110不发生转动或移动，第一驱动组件仅带动光学反射器件120转动。第一驱动组件130带动光学反射器件120的方式以及第一方向的具体指向可以参见前述内容，此处不再赘述。
在该光学系统中，摄像模组110也可以进行转动或移动，摄像模组110也可以在第一驱动组件的带动下，进行移动或转动，也就是说，第一驱动组件既可以带动光学反射器件120沿第一方向转动，也可以带动摄像模组110沿第一方向转动。摄像模型110与光学反射器件120的转动方向一致，这样通过第一驱动组件，可以使得光学反射器件120可以变更位置，以反射不同方向的光，使得摄像模组110可以通过光学反射器件120拍摄到不同角度的图像或视频，且在第一驱动组件的带动下，光学反射器件120和摄像模组110均会发生移动，光学反射器件120和摄像模组110的相对位置不易发生变化，便于成像。
以第一方向为水平方向为例，参见图13，图13中示出了在第一方向为水平方向的情况下，摄像模组110与光学反射器件120的转动范围，从图13中，摄像模组110与光学反射器件120可以实现360度的转动，使得摄像模组110的拍摄范围更大，这里需要说明的是图13所示摄像模组110与光学反射器件120的转动范围仅是举例，在实际应用中可以根据具体场景进行设定，例如该光学系统可以安插在显示屏的上端，当利用该显示屏进行视频会议时，该光学系统可以只拍摄位于该显示屏前方范围内的人或物，摄像模组110与光学反射器件120的转动范围可以设置为180度或者更小的角度。第一方向为重力方向的情况也类似，此处不再赘述，在第一方向为重力方向的情况下，摄像模组110与光学反射器件120的转动范围也可以根据具体的应用场景进行变更，使得摄像模组110的拍摄范围更广。
摄像模组110也可以在其他驱动组件带动下，进行移动或转动，例如摄像模组110可以在其他驱动组件下，朝向光学反射器件120或远离光学反射器件120。也就是说，摄像 模组110与光学反射器件120之间的距离可控，通过改变摄像模组110与光学反射器件120之间的距离，能够改变摄像模组110与拍摄物之间的距离，可以灵活的调节所拍摄到的图像或视频中物体或人物的大小。
第一驱动组件130的结构可以参见图4A～4C的相关说明，此处不再赘述，需要说明的是，当第一驱动组件130需要带动摄像模组110进行转动时，第一驱动组件中可以包括连接摄像模组110的轴承，以保证第一电机132通过第一轴承带动光学反射器件120转动时，也可以通过连接摄像模型110的轴承带动摄像模组110转动。
在图12到13所示的光学系统中，光学反射器件120可以在第一驱动组件130的带动下沿一个方向，也即第一方向，转动。为了能够进一步增加光学反射器件120的转动范围，扩大摄像模组110的拍摄范围，如图14所示，该光学系统中还可以包括第二驱动组件140，第二驱动组件140可以带动光学反射器件120沿第二方向转动；第一方向和第二方向为不同的方向。第一驱动组件130与第二驱动组件140的结构类似，具体可参见第一驱动组件130的结构，此处不再说明。
以第一方向为水平方向，第二方向为垂直方向为例，当光学反射器件120在第一驱动组件130的带动下，沿着水平方向转动时，摄像模组110通过光学反射器件120能够拍摄到特定高度(该高度与摄像模组110设置的高度有关)下一定范围内的图片或视频，该范围与光学反射器件120转动的角度有关。例如，光学反射器件120可以在水平方向下进行360度的转动，则摄像模组110可以拍摄到特定高度下四周的人或物体。
当光学反射器件120在第二驱动组件140的带动下，沿着垂直方向转动时，摄像模组110通过光学反射器件120能够拍摄到不同高度的图片或视频。该高度的范围与光学反射器件120在垂直方向上转动的角度有关，光学反射器件120在垂直方向上转动的角度越大，该高度的范围也就越大，摄像模组110能够拍摄到较大的高度范围内的图片或视频。
光学反射器件120在第一方向和第二方向上能够同时转动，能够有效的扩展光学反射器件120的旋转范围，进而，能够扩大摄像模组110的视场角，扩大拍摄范围。
第一驱动组件130带动光学反射器件120的转动过程与第二驱动组件140带动光学反射器件120的转动过程可以参见前述内容，此处不再赘述。
在该光学系统中，摄像模组110可以是固定的，也可以在第二驱动组件的带动下，进行移动或转动，也就是说，第二驱动组件既可以带动光学反射器件120沿第二方向转动，也可以带动摄像模组110沿第二方向转动。摄像模组110与光学反射器件120的转动方向一致，通过第二驱动组件，可以使得光学反射器件120和摄像模组110一同转动，光学反射器件120能够给反射不同方向的光，使得摄像模组110可以通过光学反射器件120拍摄到不同角度的图像或视频；摄像模组110还可以在其他驱动组件的带动下，沿不同于第一方向或第二方向的方向进行移动或转动。
下面以第一方向为水平方向，第二方向为垂直方向为例，对本申请实施例提供的光学系统进行进一步说明。
参见图15，为本申请实施例提供的一种光学系统，该光学系统中第一驱动组件130可以带动光学反射器件120沿水平方向转动，第二驱动组件140驱动光学反射器件120和摄像模组110沿垂直方向转动。
需要说明的是，当第二驱动组件140需要带动摄像模组110进行转动时，第二驱动组件中可以包括连接摄像模型110的轴承，以保证第二电机142通过第二轴承141带动光学 反射器件120转动时，也可以通过连接摄像模型110的轴承带动摄像模型110转动。
传统的摄像器件在进行拍摄时，可以外置在设备(如显示器、电视屏幕)的上部，摄像器件可以通过转动实现拍摄，这种方式中，摄像器件的拍摄范围与摄像器件转动的角度有关，而摄像器件转动时的直径与摄像器件的长度相等，这样将导致摄像器件在设备上部需占据的空间(也即摄像器件的转动空间)较大，如图16所示，摄像器件在设备(如显示器、电视屏幕)的上部，需要在水平电机的带动下在横向转动，才能拍摄到设备周围的人或物，图16所示的摄像器件采用横向设置的方式设置在设备的上部的，使得摄像器件的转动空间变大。而图12～图15所示的光学系统中，由于摄像模组110位于光学反射器件120的下方，摄像模组110可以不进行转动，摄像模组110的拍摄范围与光学反射器件120的转动范围有关，光学反射器件120在不同方向的转动能够有效扩展摄像模组110的拍摄范围，整个光学系统需占据的体积与光学反射器件120的转动范围有关，且光学反射器件120由于位于摄像模组110的上方，光学反射器件120和摄像模组110采用竖向设置的方式，这样能够缩短整个光学系统的横向宽度，相较于传统的设置在设备上的摄像器件所需占据的体积，光学系统的体积能够得到较大程度的缩减，使得该光学系统内置在设备内部成为可能。
另外，光学反射器件120可以沿第一方向和第二方向进行转动，转动范围较大，能够有效扩展摄像模组110的视场角，增大拍摄范围。
图12～图15所示的光学系统可以应用在显示屏或显示器中，设置在显示屏或显示器顶端，或内嵌在显示屏或显示器上部。如图12～图15所述的光学系统也可以设置在其他设备中，这里仅是以显示屏或显示器为例进行说明。
参见图17为内嵌在显示屏上部的光学系统的结构示意图，图17为显示屏的剖面图，该光学系统位于显示屏上部，在第二驱动组件140中的第二电机142带动第二轴承141，使得光学反射器件120可以沿垂直方向转动，第一驱动组件130位于整个光学系统的下部，第一驱动组件130中第一电机132的作用下驱动第一轴承131，第一轴承131带动光学反射器件120和摄像模组110一同沿水平方向转动。
本申请实施例还提供了一种电子设备，该电子设备包括处理器以及前述内容中所述的任一种光学系统，该处理器能够获取该光学系统中摄像模组110所拍摄的图像，该处理器还能够对图像进行处理，如执行校正、编码等操作。
该电子设备还包括通信接口，用于与其他设备传输数据，如处理器可以通过该通信接口将获取的图像或处理后的图像传输给其他设备。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (36)

  1. 一种光学系统，其特征在于，所述光学系统包括摄像模组、光学反射器件、和第一驱动组件；
    所述摄像模组位置固定，与所述光学反射器件的正面相对设置；
    所述光学反射器件用于将投射到光学反射器件的光反射至所述摄像模组中；
    所述摄像模组用于通过所述光学反射器件反射的光捕获图像；
    所述第一驱动组件用于带动所述光学反射器件沿第一方向转动。
  2. 如权利要求1所述的光学系统，其特征在于，所述光学系统还包括第二驱动组件；
    所述第二驱动组件用于带动所述光学反射器件沿第二方向转动；所述第一方向和所述第二方向不同。
  3. 如权利要求1或2所述的光学系统，其特征在于，所述摄像模组沿重力方向固定设置。
  4. 如权利要求1～3任一所述的光学系统，其特征在于，所述摄像模组位于所述光学反射器件的下方。
  5. 如权利要求1～4任一所述的光学系统，其特征在于，所述第一驱动组件包括第一电机和第一轴承；
    所述第一电机用于驱动所述第一轴承，以使所述第一轴承带动所述光学反射器件沿所述第一方向转动。
  6. 如权利要求2～5任一所述的光学系统，其特征在于，所述第二驱动组件包括第二电机和第二轴承；所述第二轴承连接所述光学反射器件；
    所述第二电机用于驱动所述第二轴承，以使所述第二轴承带动所述光学反射器件沿所述第二方向转动。
  7. 如权利要求5或6所述的光学系统，其特征在于，所述第一轴承连接所述光学反射器件的背面或侧面。
  8. 如权利要求5或6所述的光学系统，其特征在于，所述第一轴承通过连杆与所述第二电机连接。
  9. 如权利要求1～8任一所述的光学系统，其特征在于，所述光学反射器件为面型固定反射镜，所述面型固定反射镜的面型为下列之一：
    平面、凸面、凹面、衍射面、自由曲面。
  10. 如权利要求1～8任一所述的光学系统，其特征在于，所述光学反射器件为面型可变反射镜，所述面型可变反射镜的可以为下列之一：
    微镜阵列、液体反射镜。
  11. 如权利要求1～10任一所述的光学系统，其特征在于，所述光学反射器件为双面镀膜的光学反射器件。
  12. 如权利要求2～11任一所述的光学系统，其特征在于，所述第一方向和所述第二方向垂直。
  13. 如权利要求12所述的光学系统，其特征在于，所述第二方向为重力方向。
  14. 如权利要求13所述的光学系统，其特征在于，所述第二轴承连接所述反射光学器件的侧面或背面。
  15. 如权利要求1～14任一所述的光学系统，其特征在于，所述光学系统还包括支架，所述第一驱动组件通过所述支架连接摄像模组。
  16. 如权利要求1～15任一所述的光学系统，其特征在于，所述光学系统还包括外壳，所述外壳位于所述摄像模组外侧。
  17. 如权利要求1～16任一所述的光学系统，其特征在于，所述光学系统还包括透光外罩，所述透光外罩与所述外壳连接，位于所述第一驱动组件、以及所述光学反射器件外侧。
  18. 一种电子设备，其特征在于，包括处理器及摄像装置，所述摄像装置包括如权利要求1～17任一项所述的光学系统。
  19. 一种光学系统，其特征在于，所述光学系统包括摄像模组、光学反射器件、和第一驱动组件；
    所述摄像模组与所述光学反射器件的正面相对设置，所述摄像模组位于所述光学反射器件的下方；
    所述光学反射器件用于将投射到光学反射器件的光反射至所述摄像模组中；
    所述摄像模组用于通过所述光学反射器件反射的光捕获图像；
    所述第一驱动组件用于带动所述光学反射器件沿第一方向转动。
  20. 如权利要求19所述的光学系统，其特征在于，所述光学系统还包括第二驱动组件；
    所述第二驱动组件用于带动所述光学反射器件沿第二方向转动；所述第一方向和所述第二方向不同。
  21. 如权利要求19或20所述的光学系统，其特征在于，所述摄像模组沿重力方向设置。
  22. 如权利要求19～21任一所述的光学系统，其特征在于，所述第一驱动组件包括第一电机和第一轴承；
    所述第一电机用于驱动所述第一轴承，以使所述第一轴承带动所述光学反射器件沿所述第一方向转动。
  23. 如权利要求20～22任一所述的光学系统，其特征在于，所述第二驱动组件包括第二电机和第二轴承；所述第二轴承连接所述光学反射器件；
    所述第二电机用于驱动所述第二轴承，以使所述第二轴承带动所述光学反射器件沿所述第二方向转动。
  24. 如权利要求22或23所述的光学系统，其特征在于，所述第一轴承连接所述光学反射器件的背面或侧面。
  25. 如权利要求22或23所述的光学系统，其特征在于，所述第一轴承通过连杆与所述第二电机连接。
  26. 如权利要求19～25任一所述的光学系统，其特征在于，所述光学反射器件为面型固定反射镜，所述面型固定反射镜的面型为下列之一：
    平面、凸面、凹面、衍射面、自由曲面。
  27. 如权利要求19～25任一所述的光学系统，其特征在于，所述光学反射器件为面型可变反射镜，所述面型可变反射镜的可以为下列之一：
    微镜阵列、液体反射镜。
  28. 如权利要求19～27任一所述的光学系统，其特征在于，所述光学反射器件为双面镀膜的光学反射器件。
  29. 如权利要求20～28任一所述的光学系统，其特征在于，所述第一方向和所述第二方向垂直。
  30. 如权利要求29所述的光学系统，其特征在于，所述第二方向为重力方向。
  31. 如权利要求30所述的光学系统，其特征在于，所述第二轴承连接所述反射光学器件的侧面或背面。
  32. 如权利要求19～31任一所述的光学系统，其特征在于，所述光学系统还包括支架，所述第一驱动组件通过所述支架连接摄像模组。
  33. 如权利要求19～32任一所述的光学系统，其特征在于，所述光学系统还包括外壳，所述外壳位于所述摄像模组外侧。
  34. 如权利要求19～33任一所述的光学系统，其特征在于，所述光学系统还包括透光外罩，所述透光外罩与所述外壳连接，位于所述第一驱动组件、以及所述光学反射器件外侧。
  35. 一种电子设备，其特征在于，包括处理器及摄像装置，所述摄像装置包括如权利要求19～34任一项所述的光学系统。
  36. 一种显示装置，其特征在于，包括如权利要求19～34任一项所述的光学系统，所述光学系统设置在所述显示装置的上部。
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