WO2024148842A1 - 一种照明装置和车灯 - Google Patents

一种照明装置和车灯 Download PDF

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Publication number
WO2024148842A1
WO2024148842A1 PCT/CN2023/116983 CN2023116983W WO2024148842A1 WO 2024148842 A1 WO2024148842 A1 WO 2024148842A1 CN 2023116983 W CN2023116983 W CN 2023116983W WO 2024148842 A1 WO2024148842 A1 WO 2024148842A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
optical lens
lighting device
total reflection
reflection surface
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/CN2023/116983
Other languages
English (en)
French (fr)
Inventor
张洁
董世琨
陈佳缘
周浩
祝贺
桑文慧
张玉玲
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.)
HASCO Vision Technology Co Ltd
Original Assignee
HASCO Vision Technology 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 HASCO Vision Technology Co Ltd filed Critical HASCO Vision Technology Co Ltd
Priority to EP23915600.3A priority Critical patent/EP4585853A4/en
Publication of WO2024148842A1 publication Critical patent/WO2024148842A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • 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
    • F21S41/322—Optical layout thereof the reflector using total internal reflection
    • 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
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S41/24—Light guides
    • 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
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses
    • 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
    • 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
    • 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
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F21W2102/155—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cutoff lines
    • 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

Definitions

  • the present application relates to the technical field of vehicle lamps, and in particular to a lighting device and a vehicle lamp.
  • Existing optical lenses with a collimating function usually have a light input portion and a light output portion located on opposite sides of the optical lens.
  • the light input portion can achieve unidirectional collimation in the horizontal direction
  • the light output portion can achieve unidirectional collimation in the vertical direction.
  • This also limits other components that are configured to cooperate with the optical lens to be distributed only on opposite sides of the optical lens, thereby forming an optical system arranged front to back, making the size of the entire lighting device in the front to back direction too large, which is not conducive to the layout of the lighting device and the car lights.
  • the purpose of the present application is to provide a lighting device and a vehicle lamp in view of the deficiencies in the above-mentioned prior art.
  • a lighting device comprising a light source and an optical lens arranged on the light emitting side of the light source, the optical lens having a light incident surface, a first total reflection surface capable of collimating the light along a first direction, and a light emitting surface capable of collimating the light along a second direction, which are arranged in sequence along the light path, the first direction and the second direction are perpendicular or approximately perpendicular to each other, and light emitted by the light source incident through the light incident surface is reflected by the first total reflection surface to the light emitting surface and collimated to emit.
  • a section line of the first total reflection surface in the first direction is a curve
  • a section line of the first total reflection surface in the second direction is a straight line or an approximate straight line.
  • the surface shape of the first total reflection surface is a cylinder or a quasi-cylindrical surface.
  • the optical lens further has a primary reflection surface located between the light incident surface and the first total reflection surface along the light path direction, and the light emitted by the light source incident through the light incident surface is reflected by the primary reflection surface to the first total reflection surface.
  • the primary reflection surface is a total reflection surface or a reflection mirror surface with a reflective layer.
  • the lighting device further includes a primary reflector having a primary reflective surface, the primary reflector is located between the light source and the optical lens, and is used to reflect the light emitted by the light source to the light incident surface of the optical lens.
  • the lighting device further comprises a cutoff line structure located at the light emitting side of the light source, the cutoff line structure is located at or near the focus of the optical lens, and the cutoff line structure is used to form a light emitting light shape having a cutoff line.
  • the cut-off line structure is arranged at or near a boundary of the primary reflective surface on a side close to the light source.
  • the optical lens further has at least one second total reflection surface located on the optical path, and the at least one second total reflection surface is used to adjust the optical path of the light emitted by the light source in the optical lens.
  • the surface shape of the primary reflecting surface is a parabola, a quasi-parabola, an ellipsoid or a quasi-ellipsoid.
  • Another aspect of the embodiments of the present application provides a vehicle lamp comprising any one of the above-mentioned lighting devices.
  • the present application provides a lighting device and a vehicle lamp.
  • the optical lens has a first total reflection surface.
  • the first total reflection surface can replace the light incident surface in the existing optical lens to achieve unidirectional collimation and total reflection of the light emitted by the light source. Therefore, while ensuring the lighting effect, the position of the light incident surface of the optical lens can be changed, so that the components set in conjunction with the optical lens no longer have to be arranged in the front-to-back direction, but can also be arranged in other directions such as perpendicular to the front-to-back direction. Therefore, the size of the lighting device in the front-to-back direction can be avoided to be too large, and the restrictions on the layout of the lighting device can be reduced.
  • FIG1 is a schematic diagram of a structure of an optical lens provided in an embodiment of the present application.
  • FIG2 is a second schematic diagram of the structure of an optical lens provided in an embodiment of the present application.
  • FIG3 is a third schematic diagram of the structure of an optical lens provided in an embodiment of the present application.
  • FIG4 is a fourth structural schematic diagram of an optical lens provided in an embodiment of the present application.
  • FIG5 is one of the structural schematic diagrams of a lighting device provided in an embodiment of the present application.
  • FIG6 is a second schematic diagram of the structure of a lighting device provided in an embodiment of the present application.
  • FIG7 is a schematic diagram of a light path of a lighting device provided in an embodiment of the present application.
  • FIG8 is one of the structural schematic diagrams of another lighting device provided in an embodiment of the present application.
  • FIG9 is a second schematic diagram of the structure of another lighting device provided in an embodiment of the present application.
  • FIG10 is a schematic diagram of a light path of another lighting device provided in an embodiment of the present application.
  • FIG11 is a schematic diagram of the structure of another optical lens provided in an embodiment of the present application.
  • FIG12 is a schematic diagram of a light path of another lighting device provided in an embodiment of the present application.
  • FIG13 is a schematic diagram of the structure of another optical lens provided in an embodiment of the present application.
  • FIG14 is a schematic diagram of a light path of another lighting device provided in an embodiment of the present application.
  • FIG15 is a schematic diagram of a structure in which an optical lens and a primary reflective surface are separately arranged in a lighting device provided in an embodiment of the present application;
  • FIG16 is a schematic structural diagram of a lighting device provided in an embodiment of the present application, including a low beam module and a high beam module;
  • FIG. 17 is a schematic diagram of a low beam light shape formed when a lighting device provided in an embodiment of the present application is used as a low beam module.
  • Icons 10-lighting device; 11-high beam module; 12-low beam module; 100-optical lens; 110-light incident surface; 120-first total reflection surface; 130-light exit surface; 140-cut-off line structure; 141-focal position; 150-primary reflection surface; 160-second total reflection surface; 200-heat sink; 210-circuit board; 220-light source.
  • the terms “set”, “install”, “connect”, and “connect” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components.
  • the terms “set”, “install”, “connect”, and “connect” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components.
  • the specific meanings of the above terms in this application should be understood based on the specific circumstances.
  • front and rear refer to the front and rear directions of the lighting device along the light-emitting direction
  • left and right refer to the left and right directions of the lighting device itself
  • up and down refer to the up and down directions of the lighting device itself, which are usually roughly the same as the front, back, left, right, up and down directions of the vehicle; the terms are based on the orientation or positional relationship shown in the accompanying drawings, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application; moreover, the orientation terms for the lighting device of the present application should be understood in conjunction with the actual installation status.
  • light shape refers to the projection shape of the light from the headlights on the vertical plane light distribution screen 25m away from the front of the vehicle
  • the cutoff line refers to the dividing line where the light is projected onto the light distribution screen and the visual perception of the significant change in light and dark.
  • the main low beam light shape is the central area light shape of the low beam light shape with high illumination
  • the auxiliary low beam light shape is the widened area light shape of the low beam light shape, so that the left and right illumination range of the low beam light shape meets the requirements.
  • a total reflection surface refers to a reflection surface that can cause as much light as possible to be fully reflected when it hits the reflection surface.
  • a lighting device comprising a light source and an optical lens disposed on the light emitting side of the light source, wherein the optical lens is an integrally formed part of a transparent material, and the optical lens can play a role of bidirectional collimation (i.e., collimating the light emitted by the light source along two mutually perpendicular or approximately perpendicular directions) for the light emitted by the light source, thereby obtaining converged approximately parallel emitted light, thereby obtaining a better lighting effect.
  • approximately perpendicular means that the angle between the two directions is 90° ⁇ 10°.
  • the optical lens 100 has a light incident surface 110, a first total reflection surface 120 and a light emitting surface 130 which are arranged in sequence along the light path, wherein the first total reflection surface 120 can realize the function of collimating the light emitted by the light source 220 along the first direction, and the light emitting surface 130 can realize the function of collimating the light emitted by the light source 220 along the second direction, and the first direction and the second direction are two directions perpendicular or approximately perpendicular to each other, so that the bidirectional collimation function of the optical lens 100 is realized by the first total reflection surface 120 and the light emitting surface 130, thereby obtaining converged approximately parallel emitted light and obtaining a better lighting effect.
  • the light emitted by the light source 220 enters the optical lens 100 through the light incident surface 110 of the optical lens 100 and propagates to the first total reflection surface 120.
  • the first total reflection surface 120 can not only collimate the incident light along the first direction, but also make the incident light be totally reflected at the first total reflection surface 120, thereby reducing light loss.
  • the light emitted by the light source 220 propagates to the light emitting surface 130 after being totally reflected at the first total reflection surface 120, and the light emitting surface 130 collimates the light along the second direction. Therefore, after collimation in the first direction and the second direction, the light emitted by the light source 220 is finally emitted from the light emitting surface 130, and the light emitting light shape of the lighting device 10 is formed accordingly.
  • the first total reflection surface 120 can realize collimation along the first direction, the first total reflection surface 120 can replace the incident light surface that realizes unidirectional collimation in the existing optical lens.
  • the total reflection function can change the position of the light incident surface 110 on the optical lens 100, that is, change the position of the light incident surface 110 relative to the light emitting surface 130, so that the light incident surface 110 and the light emitting surface 130 are no longer necessarily located on opposite sides of the optical lens 100.
  • the total reflection function of the first total reflection surface 120 the light incident direction can be changed, so that the components provided in conjunction with the optical lens 100 no longer have to be arranged along the front-to-back direction, but can also be arranged in directions other than the front-to-back direction.
  • the light incident surface and the light emitting surface of the existing optical lens are arranged along the y direction (front-to-back direction), thereby limiting the light to be incident on the optical lens from the y direction, and also thereby requiring other components to be arranged along the y direction to cooperate with the optical lens, resulting in the formed lighting device 10 being too large in size in the y direction as a whole, thereby subjecting the layout of the lighting device to more restrictions.
  • the optical lens 100 of the present application can change the position of the light incident surface 110 due to the presence of the first total reflection surface 120, so that the light incident surface 110 is located at the bottom surface of the optical lens 100.
  • the components located on the light emitting side of the optical lens 100 can be arranged along the y direction with the optical lens 100, and the components located on the light incident side of the optical lens 100 can be arranged along the z direction with the optical lens 100. Therefore, the size of the lighting device 10 in the y direction can be avoided to be too large.
  • first direction may be a horizontal direction
  • second direction may be a vertical direction
  • first direction may also be a vertical direction
  • second direction may be a horizontal direction
  • the first total reflection surface 120 can achieve collimation of the light in the first direction, that is, unidirectional collimation, it can be understood as follows: as shown in Figure 1, when the first direction is the x direction and the second direction is the z direction, the section of the first total reflection surface 120 in the first direction is a curve, more specifically, a convex curve (the convex here refers to the convexity relative to the optical lens 100), thereby converging the incident light and also having a certain collimation effect on the divergent light.
  • the section of the first total reflection surface 120 in the second direction is a straight line or an approximate straight line. Therefore, the first total reflection surface 120 has no collimation effect on the light in the second direction. Therefore, the first total reflection surface 120 can have a unidirectional collimation effect on the light emitted by the light source 220 in the first direction.
  • the light emitting surface 130 can realize collimation of the light emitted by the light source 220 in the second direction, that is, unidirectional collimation, it can be understood as follows: as shown in FIG. 1, when the first direction is the x direction and the second direction is the z direction, the section line of the light emitting surface 130 in the second direction is a curve, more specifically, a convex curve (the convex here refers to the convexity relative to the optical lens 100), thereby, the incident light will be converged, but at this time the light is refracted at the light emitting surface 130, so convergence means that the degree of deflection of the light is relatively large, and it can also be
  • the divergent light has a certain collimating effect, and the section of the light emitting surface 130 in the first direction is a straight line or an approximate straight line, so that the light emitting surface 130 has a much weaker ability to deflect light in the first direction than in the second direction.
  • the light emitting surface 130 has no or basically no ability to change the degree of light deflection in the first direction, and also has no collimating effect on the light, that is, the light is relatively divergent in the first direction. Therefore, the light emitting surface 130 can play a unidirectional collimating role on the light emitted by the light source 220 in the second direction.
  • the surface shape of the first total reflection surface 120 is a cylinder or a quasi-cylindrical surface.
  • the formation of the first total reflection surface 120 can be regarded as a curve obtained by unidirectional stretching. Specifically, as shown in FIG. 1 , the curve b is unidirectionally stretched along the stretching direction a to form a cylinder or a quasi-cylindrical surface.
  • the angle between the normal at any point on the first total reflection surface 120 and the incident light satisfies the law of total reflection.
  • the formation of the light emitting surface 130 can also refer to the formation setting of the first total reflection surface 120, except that the stretching direction of the curve is different.
  • a primary reflective element may be provided in the present application, and the light source 220 may be located at or near the focus of the primary reflective element.
  • the primary reflective element and the first total reflection surface 120 may be arranged in a non-front-to-back direction, thereby avoiding the problem of the lighting device 10 being too large in the front-to-back direction.
  • the light emitted by the light source 220 may be modulated by the primary reflective element to obtain a better lighting effect.
  • the primary reflective element When the primary reflective element is provided, the primary reflective element may be provided integrally with the optical lens 100, thereby, on the one hand, the volume of the lighting device 10 may be effectively reduced, on the other hand, the integrally provided form may effectively save the dimming step of the primary reflective element in the light distribution process, and on the other hand, the integrally provided form may also allow the light to enter only once (enter the light-entering surface 110 of the optical lens 100) and exit once (exit the light-exiting surface 130 of the optical lens 100), thereby effectively reducing light loss and improving the performance of the lighting device 10.
  • the primary reflective element and the optical lens 100 may be separately provided, thereby reducing the difficulty in manufacturing the optical lens 100 and improving the yield rate of the optical lens 100.
  • a primary reflective surface 150 is provided on the optical lens 100 to realize the primary modulation function. For example:
  • the optical lens 100 has a primary reflection surface 150, and along the light path direction, the primary reflection surface 150 is located between the light incident surface 110 and the first total reflection surface 120, and the primary reflection surface 150 is arranged closer to the light emitting surface 130 relative to the light incident surface 110.
  • the light source 220 is located on one side of the light incident surface 110 of the optical lens 100.
  • the light source 220 is arranged on one side of the light incident surface 110 of the optical lens 100, and the light source 220 can be located at the focal position or near the focal position of the primary reflection surface 150. Therefore, as shown in Fig. 7, under the action of the first total reflection surface 120, the primary reflection surface 150 and the first total reflection surface 120 can also be arranged in the up-down direction, so as to avoid the lighting device 10 from being too large in the front-back direction.
  • a circuit board 210 carrying a light source 220 may be provided.
  • a heat sink 200 may be provided on a side of the circuit board 210 away from the light source 220, so that the light source 220 is effectively dissipated by the heat sink 200.
  • the present application does not limit the type of the light source 220, the structure and material of the heat sink 200, etc. system.
  • the optical path of the light emitted by the light source 220 of the lighting device 10 in this embodiment when working is shown: the light emitted by the light source 220 is incident into the optical lens 100 through the light incident surface 110 of the optical lens 100, propagates to the primary reflection surface 150 and is reflected to the first total reflection surface 120, and then propagates to the light emitting surface 130 after total reflection and unidirectional collimation on the first total reflection surface 120, and then the light emitting surface 130 performs unidirectional collimation on the light in another direction and then emits it to form the light emitting light shape of the lighting device 10, thereby obtaining approximately parallel emitted light rays and obtaining a better lighting effect.
  • the optical lens 100 is also shown to have a primary reflection surface 150, and along the light path direction, the primary reflection surface 150 is located between the light incident surface 110 and the first total reflection surface 120.
  • the primary reflection surface 150 is arranged farther away from the light emitting surface 130 relative to the light incident surface 110.
  • the optical path of the light emitted by the light source 220 of the lighting device 10 in this embodiment when working is shown: the light emitted by the light source 220 is incident into the optical lens 100 through the light incident surface 110 of the optical lens 100, propagates to the primary reflection surface 150 and is reflected to the first total reflection surface 120, and then propagates to the light emitting surface 130 after total reflection and unidirectional collimation on the first total reflection surface 120, and then the light emitting surface 130 performs unidirectional collimation on the light of the light source 220 in another direction and then emits it to form the light output shape of the lighting device 10, thereby obtaining approximately parallel output light rays and obtaining a better lighting effect.
  • the position of the primary reflective surface 150 can be flexibly selected according to the requirements of the lighting device 10, so that the lighting device 10 can have different structural forms to meet different layout requirements.
  • the optical lens 100 has a primary reflection surface 150, and along the light path direction, the primary reflection surface 150 is located between the light incident surface 110 and the first total reflection surface 120.
  • a second total reflection surface 160 is added between the primary reflection surface 150 and the first total reflection surface 120.
  • the light path of the light inside the optical lens 100 can be changed through the second total reflection surface 160, thereby conveniently changing the structural form of the optical lens 100.
  • the optical path of the light emitted by the light source 220 of the lighting device 10 in this embodiment when working is shown: the light emitted by the light source 220 is incident on the light incident surface 110 of the optical lens 100, propagates to the primary reflection surface 150 and is reflected to the second total reflection surface 160, and then is incident on the first total reflection surface 120 after being reflected by the second total reflection surface 160, and then propagates to the light emitting surface 130 after being totally reflected and unidirectionally collimated on the first total reflection surface 120, and then the light emitting surface 130 unidirectionally collimates the light in another direction and then emits it to form the light emitting light shape of the lighting device 10, thereby obtaining approximately parallel emitted light rays and obtaining a better lighting effect.
  • the optical lens 100 is also shown to have a primary reflection surface 150, and along the light path direction, the primary reflection surface 150 is located between the light incident surface 110 and the first total reflection surface 120, and a second total reflection surface 160 is added between the primary reflection surface 150 and the first total reflection surface 120.
  • a second total reflection surface 160 is added between the first total reflection surface 120 and the light exiting surface 130, and the light path inside the optical lens 100 can be changed by the two second total reflection surfaces 160, thereby conveniently changing the structural form of the optical lens 100, as shown in FIGS. 13 and 14 , so that the bottom surface c of the optical lens 100 is a plane, thereby reducing the difficulty of processing and manufacturing the optical lens 100 and improving the yield rate.
  • the optical path of the light emitted by the light source 220 of the lighting device 10 in this embodiment when working is shown: the light emitted by the light source 220 is incident into the optical lens 100 through the light incident surface 110 of the optical lens 100, propagates to the primary reflection surface 150 and is reflected to the second total reflection surface 160, and then is incident on the first total reflection surface 120 after being reflected at the second total reflection surface 160, and then propagates to another second total reflection surface 160 after being reflected and unidirectionally collimated at the first total reflection surface 120, and then propagates to the light emitting surface 130 after being reflected by the second total reflection surface 160, and then the light emitting surface 130 performs unidirectional collimation on the light in another direction and then emits it to form the light emitting light shape of the lighting device 10, thereby obtaining approximately parallel emitted light rays and obtaining a better lighting effect.
  • the surface shape of the primary reflection surface 150 is a parabola, a quasi-parabola, an ellipsoid or a quasi-ellipsoid, so that the primary reflection surface 150 can perform primary modulation on the light of the light source 220, so that the light of the light source 220 reflected by the primary reflection surface 150 can be irradiated to the first total reflection surface 120 or the second total reflection surface 160 as nearly parallel light, thereby improving the lighting effect of the lighting device 10.
  • the primary reflective surface 150 may be a total reflective surface or a reflective mirror surface with a reflective layer, thereby, the light can be modulated by the primary reflective surface 150 while avoiding light loss.
  • the total reflective surface refers to the light emitted by the light source 220 being reflected by total reflection when incident on the total reflective surface;
  • the reflective mirror surface with a reflective layer refers to a reflective layer coated on a designated area of the outer surface of the optical lens 100, thereby, the light emitted by the light source 220 is reflected by mirror reflection when incident on the reflective mirror surface with a reflective layer.
  • the optical lens 100 may be integrated with a cutoff line structure 140, that is, the cutoff line structure 140 is integrally provided with the optical lens 100.
  • the cutoff line structure 140 is provided at or near the boundary of the primary reflective surface 150 on the side close to the light source 220.
  • the cutoff line structure 140 can correspond to the light shape of the emitting light of the lighting device 10 having a cutoff line, thereby meeting the light shape standard.
  • the cutoff line structure 140 may be located at the focus of the optical lens 100, as shown in FIGS.
  • the cut-off line structure 140 can be arranged near the focal position 141, so that when the light from the light source 220 irradiates the cut-off line structure 140, the image formed here can be emitted through the optical lens 100 and formed on the light distribution screen, that is, a light cut-off line of the light output light shape is formed.
  • the vicinity of the boundary refers to the range of 2 mm around the boundary.
  • a primary reflector is separately disposed outside the optical lens 100 to reflect the light emitted by the light source 220 to the light incident surface 110 of the optical lens 100 and realize the primary modulation function.
  • a primary reflector is separately disposed outside the optical lens 100 to reflect the light emitted by the light source 220 to the light incident surface 110 of the optical lens 100 and realize the primary modulation function.
  • a primary reflector is arranged between the light source 220 and the optical lens 100. Under the action of the first total reflection surface 120, the light incident surface 110 of the optical lens 100 can be located at the bottom surface, and the primary reflector is arranged below the optical lens 100, thereby forming an arrangement in the up and down directions with the first total reflection surface 120, thereby avoiding the lighting device 10 from being too large in the front and back directions.
  • a circuit board 210 carrying a light source 220 may also be provided.
  • a heat sink 200 may also be provided on a side of the circuit board 210 away from the light source 220, so that the heat sink 200 can effectively dissipate the heat of the light source 220.
  • the present application does not limit the type of the light source 220, the structure and material of the heat sink 200, etc.
  • the optical path of the light emitted by the light source 220 is as follows (not shown in the figure): the light source 220 emits light and is incident on the primary reflector. Under the reflection action of the primary reflector, the light is incident on the light incident surface 110 of the optical lens 100, propagates to the first total reflection surface 120, and is totally reflected and unidirectionally collimated on the first total reflection surface 120. The light is propagated to the light emitting surface 130, and then the light emitting surface 130 unidirectionally collimates the light in another direction and then emits it to form the light output shape of the lighting device 10. As a result, approximately parallel output light rays are obtained, thereby achieving a better lighting effect.
  • At least one second total reflection surface 160 may be added inside the optical lens 100, thereby changing the light path inside the optical lens 100, so that the optical lens 100 has a specific external shape to meet the layout requirements of other components.
  • the surface shape of the primary reflecting surface 150 of the primary reflector is a parabola, a quasi-parabola, an ellipsoid or a quasi-ellipsoid.
  • the quasi-parabola refers to a curved surface similar to a parabola
  • the quasi-ellipsoid refers to a curved surface similar to an ellipsoid, which have similar optical properties.
  • the light of the light source 220 can be primarily modulated by the primary reflecting surface 150, so that the light of the light source 220 after being reflected by the primary reflecting surface 150 can be irradiated to the first total reflection surface 120 or the second total reflection surface 160 as nearly parallel light, thereby improving the lighting effect of the lighting device 10.
  • the primary reflector may be integrated with a cutoff line structure 140, that is, the cutoff line structure 140 and the primary reflector are provided as one body.
  • the cutoff line structure 140 is provided at or near the boundary of the primary reflective surface 150 of the primary reflector close to the light source 220.
  • the cutoff line structure 140 may correspond to the light output shape of the lighting device 10. There is a cutoff line, so as to meet the standard of light shape.
  • the cutoff line structure 140 can be located at the focus of the optical lens 100, for example, as shown in Figures 1 and 2, it is shown that parallel light enters the optical lens 100 from the light exit surface 130, and converges at a point outside the optical lens 100 after being reflected by the first total reflection surface 120. This point is the focus position 141 of the optical lens 100, and the cutoff line structure 140 can be set at or near this point. Therefore, when the light from the light source 220 irradiates the cutoff line structure 140, the image formed here can be emitted through the optical lens 100 and formed on the light distribution screen, that is, the light and dark cutoff line of the light exit light shape is formed.
  • the cut-off line structure 140 may not be integrally arranged with the optical lens 100 or the primary reflector, and may be formed by a separate light blocking member or a light shielding plate or a condenser, which is not limited in the present application.
  • a separate light blocking member or a light shielding plate or a condenser which is not limited in the present application.
  • the lighting device 10 in the present application may include a low beam module 12 for forming a low beam light shape, and the lighting device 10 shown in Figures 5 to 15 can be used to form a low beam light shape.
  • the lighting device 10 in the present application may also include a high beam module 11 for forming a high beam light shape, and the lighting device 10 shown in Figures 5 to 15 can be used to form a high beam light shape.
  • the lighting device 10 in the present application simultaneously includes a low beam module 12 for forming a low beam light shape and a high beam module 11 for forming a high beam light shape, for example, as shown in Figure 16, with the dotted line in Figure 16 as the dividing line (the dividing line is a virtual line, only for ease of understanding, and does not exist in the actual structure), the structure above the dividing line can be used as the high beam module 11 for forming a high beam light shape, and the structure below the dividing line can be used as the low beam module 12 for forming a low beam light shape.
  • the low beam module 12 and the high beam module 11 can be separately arranged or integrally arranged.
  • the low beam module 12 and the optical lens 100 in the high beam module 11 are integrally arranged, and the optical surfaces of the optical lenses 100 of the low beam module 12 and the high beam module 11 are symmetrically arranged.
  • the first total reflection surface 120 of the low beam module 12 is connected to the first total reflection surface 120 of the high beam module 11, and the light emitting surface 130 of the low beam module 12 is connected to the light emitting surface 130 of the high beam module 11.
  • the low beam module 12 and the high beam module 11 can share a light emitting surface 130, thereby further improving the integration of the lighting device 10, simplifying the light distribution, and reducing the volume of the lighting device 10.
  • this is the low beam light shape formed on the light distribution screen when the lighting device 10 in the present application is used as the low beam module 12 .
  • the cut-off line structure 140 is used to make the low beam light shape have a bright and dark cut-off line, thereby meeting the low beam lighting requirements.
  • Another aspect of the present application is to provide a vehicle lamp, comprising any one of the above-mentioned lighting devices 10.
  • the optical lens 100 has a first total reflection surface 120, thereby changing the position of the light incident surface 110 of the optical lens 100 through the first total reflection surface 120, thereby preventing the lighting device 10 from being too large in the front-to-back direction, effectively preventing the vehicle lamp from being too large in the front-to-back direction, and reducing The restrictions on the lamp when it is installed on the vehicle.
  • the present application provides a lighting device and a vehicle lamp.
  • the optical lens has a first total reflection surface.
  • the first total reflection surface can replace the light incident surface in the existing optical lens to achieve unidirectional collimation and total reflection of the light emitted by the light source. Therefore, while ensuring the lighting effect, the position of the light incident surface of the optical lens can be changed, so that the components set in conjunction with the optical lens no longer have to be arranged in the front-to-back direction, but can also be arranged in other directions such as perpendicular to the front-to-back direction. Therefore, the size of the lighting device in the front-to-back direction can be avoided to be too large, and the restrictions on the layout of the lighting device can be reduced.

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Abstract

本申请提供一种照明装置和车灯，涉及车灯技术领域，通过对照明装置中的光学透镜进行改进，使得光学透镜具有第一全反射面，利用第一全反射面能够代替现有光学透镜中的入光面实现单向准直的同时对光源光线进行全反射，也由此能够在保证照明效果的同时，改变光学透镜入光面的位置，使得配合光学透镜设置的部件不再必须沿前后方向排布，而是还可以沿垂直前后方向的其它方向排布，由此，能够避免照明装置在前后方向上的尺寸过大，降低照明装置布设时所受到的限制。

Description

一种照明装置和车灯
相关申请的交叉引用
本申请要求于2023年01月11日提交中国专利局的申请号为2023100638505、名称为“一种照明装置和车灯”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
本申请涉及车灯技术领域，具体而言，涉及一种照明装置和车灯。
背景技术
随着社会经济的发展，汽车行业也随之发展，随着汽车照明技术的不断发展，对车灯的功能也提出了更多的要求。在实现车灯照明功能的照明装置中，通常设置具有准直功能的光学元件以得到近似平行的出射光线，从而获得较好的照明效果。
现有具有准直功能的光学透镜通常具有位于光学透镜相对两侧的入光部和出光部，入光部能够实现水平方向的单向准直，出光部能够实现竖直方向的单向准直，也由此限制了配合光学透镜设置的其它部件只能分布于的光学透镜的相对两侧，从而形成前后排布的光学系统，使得整个照明装置在前后方向的尺寸过大，不利于照明装置和车灯的布设。
申请内容
本申请的目的在于，针对上述现有技术中的不足，提供一种照明装置和车灯。
为实现上述目的，本申请实施例采用的技术方案如下：
本申请实施例的一方面，提供一种照明装置，包括光源以及在光源出光侧设置的光学透镜，光学透镜具有沿光路依次设置的入光面、能够对光线进行沿第一方向准直的第一全反射面和能够对光线进行沿第二方向准直的出光面，第一方向和第二方向相互垂直或近似垂直，经入光面入射的光源发出的光线经第一全反射面反射至出光面准直出射。
可选的，第一全反射面在第一方向的截线为曲线，第一全反射面在第二方向的截线为直线或近似直线。
可选的，第一全反射面的面型为柱面或类柱面。
可选的，光学透镜还具有沿光路方向位于入光面和第一全反射面之间的初级反射面，经入光面入射的光源发出的光线经初级反射面反射至第一全反射面。
可选的，初级反射面为全反射面或具有反光层的反射镜面。
可选的，照明装置还包括具有初级反射面的初级反射镜，初级反射镜位于光源和光学透镜之间，初级反射镜用于反射光源发出的光线至光学透镜的入光面。
可选的，照明装置还包括位于光源出光侧的截止线结构，截止线结构位于光学透镜的焦点处或焦点附近，截止线结构用于形成具有截止线的出光光形。
可选的，当照明装置还包括初级反射面时，截止线结构设置于初级反射面靠近光源一侧的边界或边界附近。
可选的，光学透镜还具有位于光路上的至少一个第二全反射面，至少一个第二全反射面用于调整光源发出的光线在光学透镜内的光路。
可选的，初级反射面的面型为抛物面、类抛物面、椭球面或类椭球面。
本申请实施例的另一方面，提供一种车灯，包括上述任一种的照明装置。
本申请的有益效果包括：
本申请提供了一种照明装置和车灯，通过对照明装置中的光学透镜进行改进，使得光学透镜具有第一全反射面，利用第一全反射面能够代替现有光学透镜中的入光面实现单向准直的同时对光源发出的光线进行全反射，也由此能够在保证照明效果的同时，改变光学透镜入光面的位置，使得配合光学透镜设置的部件不再必须沿前后方向排布，而是还可以沿垂直前后方向等其它方向排布，由此，能够避免照明装置在前后方向上的尺寸过大，降低照明装置布设时所受到的限制。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为本申请实施例提供的一种光学透镜的结构示意图之一；
图2为本申请实施例提供的一种光学透镜的结构示意图之二；
图3为本申请实施例提供的一种光学透镜的结构示意图之三；
图4为本申请实施例提供的一种光学透镜的结构示意图之四；
图5为本申请实施例提供的一种照明装置的结构示意图之一；
图6为本申请实施例提供的一种照明装置的结构示意图之二；
图7为本申请实施例提供的一种照明装置的光路示意图；
图8为本申请实施例提供的另一种照明装置的结构示意图之一；
图9为本申请实施例提供的另一种照明装置的结构示意图之二；
图10为本申请实施例提供的另一种照明装置的光路示意图；
图11为本申请实施例提供的又一种光学透镜的结构示意图；
图12为本申请实施例提供的又一种照明装置的光路示意图；
图13为本申请实施例提供的再一种光学透镜的结构示意图；
图14为本申请实施例提供的再一种照明装置的光路示意图；
图15为本申请实施例提供的一种照明装置中光学透镜和初级反射面分开设置的结构示意图；
图16为本申请实施例提供的一种照明装置包括近光模组和远光模组的结构示意图；
图17为本申请实施例提供的一种照明装置作为近光模组时所形成的近光光形示意图。
图标：10-照明装置；11-远光模组；12-近光模组；100-光学透镜；110-入光面；120-第一全反射面；130-出光面；140-截止线结构；141-焦点位置；150-初级反射面；160-第二全反射面；200-散热器；210-电路板；220-光源。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。需要说明的是，在不冲突的情况下，本申请的实施例中的各个特征可以相互结合，结合后的实施例依然在本申请的保护范围内。
在本申请的描述中，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可 以具体情况理解上述术语在本申请中的具体含义。
需要理解的是，为了便于描述本申请和简化描述，术语“前、后”是指照明装置沿出光方向的前后方向，术语“左、右”是指照明装置自身的左右方向，术语“上、下”是指照明装置自身的上下方向，通常与车辆的前后左右上下方向大致相同；术语为基于附图所示的方位或位置关系，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制；而且，对于本申请的照明装置的方位术语，应当结合实际安装状态进行理解。
在本申请中，光形指的是车灯的光线投射在距离车辆正前方25m处的竖直平面配光屏幕上的投射形状，截止线是指光线投射到配光屏幕上，目视感觉到的明暗显著变化的分界线。主近光光形为近光光形的中心区域光形，照度高，辅助近光光形为近光光形的展宽区域光形，使得近光光形的左右照射范围符合要求。全反射面是指可以使射至该反射面的光线尽可能多地发生全反射的反射面。
本申请实施例的一方面，提供一种照明装置，包括光源以及在光源出光侧设置的光学透镜，光学透镜为透明材质一体成型件，光学透镜能够对光源发出的光线起到双向准直(即沿两个相互垂直或近似垂直的方向对光源发出的光线进行准直)的作用，由此能够得到汇聚的近似平行出射光线，从而获得较好的照明效果。其中，近似垂直指两个方向的夹角为90°±10°。
请参照图1和图2，光学透镜100具有沿光路依次设置的入光面110、第一全反射面120和出光面130，其中，第一全反射面120能够实现对光源220发出的光线沿第一方向进行准直的功能，出光面130能够实现对光源220发出的光线沿第二方向进行准直的功能，并且第一方向和第二方向为相互垂直或近似垂直的两个方向，以此通过第一全反射面120和出光面130实现光学透镜100的双向准直功能，从而得到汇聚的近似平行出射光线，获得较好的照明效果。
在实际使用时，光源220发出的光线经光学透镜100的入光面110入射光学透镜100并传播至第一全反射面120，第一全反射面120既能够沿第一方向对入射的光线起到准直的作用，同时也能够使得入射的光线在第一全反射面120发生全反射，由此，降低光损，光源220发出的光线在第一全反射面120发生全反射后传播至出光面130，由出光面130沿第二方向对光线起到准直作用，以此，经过在第一方向和第二方向上的准直后，光源220发出的光线最终由出光面130出射，并随之形成照明装置10的出光光形。
由于第一全反射面120能够实现沿第一方向的准直，使得第一全反射面120能够代替现有光学透镜中实现单向准直的入光面，在此基础上，鉴于第一全反射面120的全反 射功能，能够改变入光面110在光学透镜100上的位置，即改变入光面110相对出光面130的位置，使得入光面110和出光面130之间不再必须位于光学透镜100的相对两侧，换言之，由于第一全反射面120的全反射功能，能够改变入光方向，使得配合光学透镜100设置的部件不再必须沿前后方向排布，而是还可以沿除前后方向的其它方向排布，为了便于理解，借用图1中所示的方向，现有光学透镜的入光面和出光面沿y方向(前后方向)排布，由此限制光线必须由y方向入射光学透镜，也由此，使得其它部件必须沿y方向配合光学透镜进行排布，导致形成的照明装置10整体上在y方向的尺寸过大，由此使得照明装置的布设受到较多限制。而如图1和图2所示出的本申请的光学透镜100，由于第一全反射面120的存在，能够改变入光面110的位置，使得入光面110位于光学透镜100的底面，由此，在布设时，可以使得位于光学透镜100出光侧的部件与光学透镜100沿y方向排布，位于光学透镜100入光侧的部件与光学透镜100沿z方向排布，由此，能够避免照明装置10在y方向上的尺寸过大。
需要说明的是，第一方向可以是水平方向，第二方向可以是竖直方向；当然，在其它实施方式中，第一方向还可以是竖直方向，第二方向可以是水平方向。
可选的，由于第一全反射面120能够实现在第一方向对光线进行准直，也即单向准直，可以做如下理解：如图1所示，当第一方向为x方向，第二方向为z方向时，第一全反射面120在第一方向的截线为曲线，更具体的，为凸曲线(此处的凸指相对于光学透镜100来讲外凸)，由此，会对入射的光线起到汇聚作用，也能够对发散的光线具有一定的准直作用，第一全反射面120在第二方向的截线为直线或近似直线，因此，第一全反射面120在第二方向上对光线不具有准直作用，所以，第一全反射面120能够在第一方向上对光源220发出的光线起到单向准直的作用。
同理，由于出光面130能够实现在第二方向对光源220发出的光线进行准直，也即单向准直，可以做如下理解：如图1所示，当第一方向为x方向，第二方向为z方向时，出光面130在第二方向的截线为曲线，更具体的，为凸曲线(此处的凸指相对于光学透镜100来讲外凸)，由此，会对入射的光线起到汇聚作用，只是此时光线在出光面130发生折射，所以汇聚是指对光线的偏折程度较大，也能够对发散的光线具有一定的准直作用，出光面130在第一方向的截线为直线或近似直线，使得出光面130在第一方向对光线的偏折能力远不如在第二方向对光线的偏折能力，因此，出光面130在第一方向上对光线不具有或基本不具有改变光线偏折程度的能力，同时对光线也不具备准直作用即在第一方向上光线是较为发散的，所以，出光面130能够在第二方向上对光源220发出的光线起到单向准直的作用。
可选的，如图1至图16所示，第一全反射面120的面型为柱面或类柱面。为便于理解，第一全反射面120的形成可以看作是由一曲线通过单向拉伸得到的，具体的：如图1所示，曲线b沿拉伸方向a进行单向拉伸，形成柱面或类柱面。此外，应当理解的是，为了保证光源220发出的光线能够在第一全反射面120发生全反射，因此，第一全反射面120上任意一点的法线与入射光线的夹角满足全反射定律。出光面130的形成也可以参照第一全反射面120的形成设置，区别在于曲线拉伸方向不同。
可选的，在本申请中还可以设置有初级反射元件，光源220可以位于初级反射元件的焦点处或焦点附近，鉴于第一全反射面120的作用，能够使得初级反射元件与第一全反射面120沿非前后方向排布，由此，能够避免前后方向上照明装置10尺寸过大的问题。通过初级反射元件可以对光源220发出的光线进行初级调制，以此获得更好的照明效果。在设置初级反射元件时，可以使得初级反射元件与光学透镜100一体设置，由此，一方面能够有效减小照明装置10的体积，另一方面，一体设置的形式能够有效的节省配光过程中初级反射元件的调光步骤，再一方面，一体设置的形式还能够使得光线仅进行一次入光(光学透镜100的入光面110入光)和一次出光(光学透镜100的出光面130出光)，从而有效的减少光损，提高照明装置10的性能。当然，在其它实施方式中，也可以是初级反射元件与光学透镜100分开设置，由此，也能够降低光学透镜100制作时的难度，提高光学透镜100的良品率。以下将结合附图对一体设置和分开设置的形式进行分别描述。
当初级反射元件与光学透镜100一体设置时，可以理解为在光学透镜100上设置有初级反射面150，以用于实现初级调制的功能。例如：
在一种实施方式中，如图3和图4所示，示出了光学透镜100具有初级反射面150，并且沿光路方向，初级反射面150位于入光面110和第一全反射面120之间，初级反射面150相对入光面110来讲更加靠近出光面130设置。
对应的，光源220位于光学透镜100的入光面110的一侧，如图5、图6和图7所示，在光学透镜100的入光面110的一侧设置光源220，光源220可以位于初级反射面150的焦点位置或焦点附近的位置。由此，如图7所示，在第一全反射面120的作用下，能够使得初级反射面150与第一全反射面120还具有上下方向的排布，从而能够避免照明装置10在前后方向的尺寸过大。
此外，还可以设置有承载光源220的电路板210。为了提高光源220的散热，还可以在电路板210的远离光源220的一侧设置有散热器200，以此，通过散热器200对光源220进行有效散热，本申请对光源220的类型、散热器200的结构、材质等均不作限 制。
如图7所示，示出了该实施方式中照明装置10在工作时光源220发出的光线的光路：光源220出射的光线经光学透镜100的入光面110入射至光学透镜100内，传播至初级反射面150后被反射至第一全反射面120，在第一全反射面120发生全反射和单向准直后传播至出光面130，然后由出光面130对光线进行另一方向的单向准直后出射形成照明装置10的出光光形，由此，得到近似平行的出射光线，获得较好的照明效果。
在另一种实施方式中，如图8、图9和图10所示，也示出了光学透镜100具有初级反射面150，并且沿光路方向，初级反射面150位于入光面110和第一全反射面120之间，与上一实施方式的区别在于：初级反射面150相对入光面110来讲更加远离出光面130设置，由此，能够使得光源220、电路板210和散热器200等能够充分利用光学透镜100下方的空间布设，从而进一步的减小照明装置10的体积。
如图10所示，示出了该实施方式中照明装置10在工作时光源220发出的光线的光路：光源220出射的光线经光学透镜100的入光面110入射至光学透镜100内，传播至初级反射面150后被反射至第一全反射面120，在第一全反射面120发生全反射和单向准直后传播至出光面130，然后由出光面130对光源220光线进行另一方向的单向准直后出射形成照明装置10的出光光形，由此，得到近似平行的出射光线，获得较好的照明效果。
由图7和图10所示的实施方式可知，在设置时，可以根据照明装置10的需求，灵活选择初级反射面150的位置，从而使得照明装置10能够具有不同的结构形态，满足不同的布设需求。
在又一种实施方式中，如图11和图12所示，也示出了光学透镜100具有初级反射面150，并且沿光路方向，初级反射面150位于入光面110和第一全反射面120之间，与上一实施方式的区别在于：在初级反射面150和第一全反射面120之间还增加了一个第二全反射面160，通过第二全反射面160能够改变光线在光学透镜100内部的光路，由此，能够方便更改光学透镜100的结构形态。
如图12所示，示出了该实施方式中照明装置10在工作时光源220发出的光线的光路：光源220出射的光线经光学透镜100的入光面110入射，传播至初级反射面150后被反射至第二全反射面160，在第二全反射面160的反射后再入射至第一全反射面120，在第一全反射面120发生全反射和单向准直后传播至出光面130，然后由出光面130对光线进行另一方向的单向准直后出射形成照明装置10的出光光形，由此，得到近似平行的出射光线，获得较好的照明效果。
在再一种实施方式中，如图13和图14所示，也示出了光学透镜100具有初级反射面150，并且沿光路方向，初级反射面150位于入光面110和第一全反射面120之间，在初级反射面150和第一全反射面120之间还增加了一个第二全反射面160，与上一实施方式的区别在于：在第一全反射面120和出光面130之间还增加了一个第二全反射面160，通过两个第二全反射面160能够改变光学透镜100内部的光路，由此，能够方便更改光学透镜100的结构形态，如图13和图14所示，使得光学透镜100的底面c为平面，由此，能够降低对光学透镜100加工制造的难度，提高良品率。
如图14所示，示出了该实施方式中照明装置10在工作时光源220发出的光线的光路：光源220出射的光线经光学透镜100的入光面110入射至光学透镜100内，传播至初级反射面150后被反射至第二全反射面160，在第二全反射面160发生反射后再入射至第一全反射面120，在第一全反射面120的反射和单向准直后传播至另一第二全反射面160，被其反射后传播至出光面130，然后由出光面130对光线进行另一方向的单向准直后出射形成照明装置10的出光光形，由此，得到近似平行的出射光线，获得较好的照明效果。
可选的，如图3至图14所示，初级反射面150的面型为抛物面、类抛物面、椭球面或类椭球面，由此，通过初级反射面150能够对光源220光线进行初级调制，使得由初级反射面150反射后的光源220光线能够以接近平行的光线照射到第一全反射面120或第二全反射面160，由此提高照明装置10的照明效果。
可选的，如图3至图14所示，在光学透镜100具有初级反射面150，也即初级反射元件与光学透镜100一体设置的实施例中，初级反射面150可以是全反射面或具有反光层的反射镜面，由此，能够利用初级反射面150进行光线的调制的同时，也能够避免光损。其中，全反射面即指光源220发出的光线在入射至全反射面时，通过全反射的方式反射；具有反光层的反射镜面即指在光学透镜100的外表面指定区域涂覆反光层，由此，在光源220发出的光线在入射至具有反光层的反射镜面时，通过镜面反射的方式反射。
可选的，如图3至图14所示，在光学透镜100具有初级反射面150，也即初级反射元件与光学透镜100一体设置的实施例中，可以使得光学透镜100集成截止线结构140，即截止线结构140与光学透镜100一体设置，具体的：如图3至图14所示，截止线结构140设置于初级反射面150靠近光源220一侧的边界或边界的附近，截止线结构140能够对应使得照明装置10的出光光形具有截止线，从而符合光形的标准。截止线结构140可以位于光学透镜100的焦点处，例如图3和图4所示，示出了平行光从出光面130入射光学透镜100，经第一全反射面120反射后汇聚于一点，该点即为光学透镜100的 焦点位置141，便可以将截止线结构140设置于该点附近，由此，在光源220的光线照射至截止线结构140时，便能够将此处所成的像经光学透镜100出射从而在配光屏幕上成像，即形成出光光形的明暗截止线。其中，边界的附近指边界周围2mm范围内。
当初级反射元件与光学透镜100分开设置时，可以理解为在光学透镜100外部单独设置有初级反射镜，以用于将光源220发出的光线反射至光学透镜100的入光面110，并实现初级调制的功能。例如：
如图15所示，在光源220和光学透镜100之间设置有初级反射镜，在第一全反射面120的作用下，能够使得光学透镜100的入光面110位于底面，初级反射镜则排布于光学透镜100的下方，由此与第一全反射面120形成上下方向的排布，从而能够避免照明装置10在前后方向的尺寸过大。
同理，在该种实施方式中，也可以设置有承载光源220的电路板210。为了提高光源220的散热，还可以在电路板210的远离光源220的一侧设置有散热器200，以此，通过散热器200对光源220进行有效散热，本申请对光源220的类型、散热器200的结构、材质等均不作限制。
该实施方式中照明装置10在工作时光源220发出的光线的光路(图中未示出)：光源220出射光线，并入射至初级反射镜，在初级反射镜的反射作用下经光学透镜100的入光面110入射，传播至第一全反射面120，在第一全反射面120发生全反射和单向准直后传播至出光面130，然后由出光面130对光线进行另一方向的单向准直后出射形成照明装置10的出光光形，由此，得到近似平行的出射光线，获得较好的照明效果。
当然，在该实施方式中，也可以再光学透镜100内部增加至少一个第二全反射面160，由此，能够改变光学透镜100内部的光路，从而使得光学透镜100具有特定的外部形态，满足其它部件的布设需求。
可选的，如图15所示，初级反射镜的初级反射面150的面型为抛物面、类抛物面、椭球面或类椭球面，类抛物面即指与抛物面近似的曲面，类椭球面即指与椭球面近似的曲面，具有相近的光学性能，由此，通过初级反射面150能够对光源220的光线进行初级调制，使得由初级反射面150反射后的光源220的光线能够以接近平行的光线照射到第一全反射面120或第二全反射面160，由此提高照明装置10的照明效果。
可选的，如图15所示，在初级反射元件与光学透镜100分开设置的实施例中，可以使得初级反射镜集成截止线结构140，即截止线结构140与初级反射镜一体设置，具体的：如图15所示，截止线结构140设置于初级反射镜的初级反射面150靠近光源220一侧的边界或者边界的附近，截止线结构140能够对应使得照明装置10的出光光形具 有截止线，从而符合光形的标准。截止线结构140可以位于光学透镜100的焦点处，例如图1和图2所示，示出了平行光从出光面130入射光学透镜100，经第一全反射面120反射后汇聚于光学透镜100外部的一点，该点即为光学透镜100的焦点位置141，便可以将截止线结构140设置于该点或该点附近，由此，在光源220的光线照射至截止线结构140时，便能够将此处所成的像经光学透镜100出射从而在配光屏幕上成像，即形成出光光形的明暗截止线。
当然，如图1和图2所示，在其它实施方式中，截止线结构140还可以不与光学透镜100或初级反射镜一体设置，其可以由单独的挡光件或遮光板或聚光器形成，本申请对其不做限制。在设置时，需要使得截止线结构140位于如图1或图2所示的光学透镜100的焦点141处或者其附近。其中，焦点附近指焦点周围2mm范围内。
应当理解的是，本申请中的照明装置10可以是包括用于形成近光光形的近光模组12，如图5至图15所示的照明装置10可以用于形成近光光形。当然，本申请中的照明装置10也可以是包括用于形成远光光形的远光模组11，如图5至图15所示的照明装置10可以用于形成远光光形。亦或是，本申请中的照明装置10同时包括分别形成近光光形的近光模组12和形成远光光形的远光模组11，例如图16所示，以图16中的虚线为分界线(该分界线为虚拟线，仅是为了便于理解，在实际结构中并不存在)，分界线上边的结构可以作为远光模组11，用于形成远光光形，分界线下边的结构可以作为近光模组12，用于形成近光光形。当然在不同的实施方式中，近光模组12和远光模组11可以分开设置，也可以是一体设置，例如图16所示，近光模组12和远光模组11中的光学透镜100一体设置，近光模组12和远光模组11的光学透镜100的各光学面对称设置，近光模组12的第一全反射面120与远光模组11的第一全反射面120连接，近光模组12的出光面130与远光模组11的出光面130连接，当然在一种实施方式中，近光模组12与远光模组11可以共用一个出光面130，由此，进一步的提高照明装置10的集成度，简化配光，降低照明装置10的体积。
如图17所示，为本申请中的照明装置10作为近光模组12时在配光屏上所形成的近光光形，通过截止线结构140，使得近光光形具有明暗截止线，以此符合近光照明要求。
本申请实施例的另一方面，提供一种车灯，包括上述任一种的照明装置10。通过对照明装置10中的光学透镜100进行改进，使得光学透镜100具有第一全反射面120，由此通过第一全反射面120，能够改变光学透镜100入光面110的位置，由此，能够避免照明装置10在前后方向上的尺寸过大，有效避免了车灯在前后方向的尺寸过大，降低 车灯在安装至车辆上时所受到的限制。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。
工业实用性
本申请提供了一种照明装置和车灯，通过对照明装置中的光学透镜进行改进，使得光学透镜具有第一全反射面，利用第一全反射面能够代替现有光学透镜中的入光面实现单向准直的同时对光源发出的光线进行全反射，也由此能够在保证照明效果的同时，改变光学透镜入光面的位置，使得配合光学透镜设置的部件不再必须沿前后方向排布，而是还可以沿垂直前后方向等其它方向排布，由此，能够避免照明装置在前后方向上的尺寸过大，降低照明装置布设时所受到的限制。

Claims (11)

  1. 一种照明装置，其特征在于，包括光源以及在所述光源出光侧设置的光学透镜，所述光学透镜具有沿光路依次设置的入光面、能够对光线进行沿第一方向准直的第一全反射面和能够对光线进行沿第二方向准直的出光面，所述第一方向和所述第二方向相互垂直或近似垂直，经所述入光面入射的所述光源发出的光线经所述第一全反射面反射至所述出光面准直出射。
  2. 如权利要求1所述的照明装置，其特征在于，所述第一全反射面在所述第一方向的截线为曲线，所述第一全反射面在所述第二方向的截线为直线或近似直线。
  3. 如权利要求2所述的照明装置，其特征在于，所述第一全反射面的面型为柱面或类柱面。
  4. 如权利要求1所述的照明装置，其特征在于，所述光学透镜还具有沿光路方向位于所述入光面和所述第一全反射面之间的初级反射面，经所述入光面入射的所述光源发出的光线经所述初级反射面反射至所述第一全反射面。
  5. 如权利要求4所述的照明装置，其特征在于，所述初级反射面为全反射面或具有反光层的反射镜面。
  6. 如权利要求1所述的照明装置，其特征在于，所述照明装置还包括具有初级反射面的初级反射镜，所述初级反射镜位于所述光源和所述光学透镜之间，所述初级反射镜用于反射所述光源发出的光线至所述光学透镜的入光面。
  7. 如权利要求1至6任一项所述的照明装置，其特征在于，所述照明装置还包括位于所述光源出光侧的截止线结构，所述截止线结构位于所述光学透镜的焦点处或焦点附近，所述截止线结构用于形成具有截止线的出光光形。
  8. 如权利要求7所述的照明装置，其特征在于，当所述照明装置还包括初级反射面时，所述截止线结构设置于所述初级反射面靠近所述光源一侧的边界或边界附近。
  9. 如权利要求1至6任一项所述的照明装置，其特征在于，所述光学透镜还具有位于所述光路上的至少一个第二全反射面，所述至少一个第二全反射面用于调整所述光源发出的光线在所述光学透镜内的光路。
  10. 如权利要求4至6任一项所述的照明装置，其特征在于，所述初级反射面的面型为抛物面、类抛物面、椭球面或类椭球面。
  11. 一种车灯，其特征在于，包括如权利要求1至10任一项所述的照明装置。
PCT/CN2023/116983 2023-01-11 2023-09-05 一种照明装置和车灯 Ceased WO2024148842A1 (zh)

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Publication number Priority date Publication date Assignee Title
EP4641076A4 (en) * 2023-04-26 2026-03-04 Hasco Vision Tech Co Ltd Optical module, optical system, and vehicle lamp

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108474534A (zh) * 2016-01-14 2018-08-31 Zkw集团有限责任公司 用于机动车前照灯的用于产生具有明暗界限的光束的照明单元
CN108800052A (zh) * 2018-04-20 2018-11-13 长春海拉车灯有限公司 一种光导及具有该光导的车灯
CN113531477A (zh) * 2020-12-29 2021-10-22 华域视觉科技(上海)有限公司 光学透镜、光学模组、车灯及车辆
JP2021185558A (ja) * 2020-05-25 2021-12-09 スタンレー電気株式会社 車両用灯具及びレンズ体
CN219510649U (zh) * 2023-01-11 2023-08-11 华域视觉科技(上海)有限公司 一种照明装置和车灯

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6340751B2 (ja) * 2014-08-25 2018-06-13 スタンレー電気株式会社 レンズ体及び車両用灯具
JP6688153B2 (ja) * 2016-05-24 2020-04-28 スタンレー電気株式会社 レンズ体および車両用灯具
CN206361642U (zh) * 2016-11-24 2017-07-28 法雷奥照明湖北技术中心有限公司 光束调整装置和用于车灯的光学装置
CN109724044A (zh) * 2019-02-25 2019-05-07 华域视觉科技(上海)有限公司 车灯聚光器和车灯模组
CN214306917U (zh) * 2020-12-29 2021-09-28 华域视觉科技(上海)有限公司 光学透镜、光学模组、车灯及车辆
CN113091014B (zh) * 2021-04-06 2022-02-22 华域视觉科技(上海)有限公司 车灯光学元件、车灯模组和车辆
JP7625982B2 (ja) * 2021-06-11 2025-02-04 市光工業株式会社 車両用灯具のレンズ、車両用灯具ユニット、車両用灯具装置
CN114659067A (zh) * 2022-03-29 2022-06-24 镇江景辉精密机械有限公司 一种车用投射式近光模组

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108474534A (zh) * 2016-01-14 2018-08-31 Zkw集团有限责任公司 用于机动车前照灯的用于产生具有明暗界限的光束的照明单元
CN108800052A (zh) * 2018-04-20 2018-11-13 长春海拉车灯有限公司 一种光导及具有该光导的车灯
JP2021185558A (ja) * 2020-05-25 2021-12-09 スタンレー電気株式会社 車両用灯具及びレンズ体
CN113531477A (zh) * 2020-12-29 2021-10-22 华域视觉科技(上海)有限公司 光学透镜、光学模组、车灯及车辆
CN219510649U (zh) * 2023-01-11 2023-08-11 华域视觉科技(上海)有限公司 一种照明装置和车灯

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4585853A4 *

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