CN116857583A - Car light projection light source device and car light - Google Patents

Car light projection light source device and car light Download PDF

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Publication number
CN116857583A
CN116857583A CN202310928194.0A CN202310928194A CN116857583A CN 116857583 A CN116857583 A CN 116857583A CN 202310928194 A CN202310928194 A CN 202310928194A CN 116857583 A CN116857583 A CN 116857583A
Authority
CN
China
Prior art keywords
light source
lens group
light
collimating lens
digital micro
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.)
Pending
Application number
CN202310928194.0A
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Chinese (zh)
Inventor
吴新民
任治辉
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.)
Luoyang Baibohe Photoelectric Technology Co ltd
Original Assignee
Luoyang Baibohe Photoelectric 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 Luoyang Baibohe Photoelectric Technology Co ltd filed Critical Luoyang Baibohe Photoelectric Technology Co ltd
Priority to CN202310928194.0A priority Critical patent/CN116857583A/en
Publication of CN116857583A publication Critical patent/CN116857583A/en
Pending 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
    • F21S41/30—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
    • F21S41/10—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]
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The application provides a car light projection light source device, which comprises a plurality of groups of light source components, collimating lens groups, focusing lens groups and digital micro-reflectors, wherein the number of the collimating lens groups corresponds to that of the light source components; the collimating lens group is arranged on a path of a light beam emitted by the light source component, and the path of the light beam refracted by the collimating lens group, the focusing lens group and the digital micro-reflector are arranged on the same straight line; when the light source component emits light beams, the light beams are refracted through the collimating lens group and the focusing lens group, so that the light beams emitted by different light source components irradiate different positions of the digital micro-reflector. The focusing lens group is arranged, so that light beams emitted by the light source assemblies directly and uniformly irradiate the digital micro-reflector without arranging a curved reflector, and meanwhile, different areas on the digital micro-reflector are illuminated by different light source assemblies through adjusting the offset of the focusing lens group relative to the collimating lens group, and multiple light source assemblies are arranged, so that the freedom degree of illumination brightness selection is improved.

Description

Car light projection light source device and car light
Technical Field
The application relates to the technical field of intelligent vehicles, in particular to a car lamp projection light source device and a car lamp.
Background
DLP technology (Digital Light Processing ) is a revolutionary new method of projecting and displaying information, designed and developed by the american TI company. It can project pictures with different resolutions through a digital processing by a DMD (Digital Micromirror Device, digital micro mirror) chip integrated with millions of pixels.
Other elements of DLP projectors typically include a light source assembly system, a color management system, a heat dissipation system, illumination and projection optics.
The DMD chip can be simply described as millions of tiny mirror plates, which are integrated on the DMD chip, each of which can be flipped independently by its back hinge structure to form a digitized image.
Currently, the mainstream technology of automotive headlamps is the working mode of adding a reflecting surface/condensing body to a light source assembly (a bulb or an LED), that is, reflecting light by the reflecting surface/condensing body to reach a desired light type, and the technology is mature and reliable. However, in the automotive headlamp employing this operation mode, once the structure of the reflecting surface/condenser is determined, the light emission pattern of the automotive headlamp is also determined, and the light emission pattern cannot be changed. In addition, since the output light shape of the existing light source assembly (bulb or LED) is fixed, the automobile headlight adopting the working mode cannot change the distribution of the light in the illumination area on the front ground of the automobile.
The intelligent car lamp adopting DLP projection can project various digital images in the range of 8-40 meters in front of the car, and can realize intelligent illumination.
The existing intelligent car lamp lighting system structure adopting the DLP projection technology adopts a collimation system to collimate the light LED light source component, then uses a free-form surface reflector to conduct condensation, and focuses light beams on a DMD display chip. In this optical path structure, there are some disadvantages: (1) The caliber of the free-form surface reflector is large, the processing difficulty is high, and the die cost is very high; (2) The free-form surface reflector has the advantages of high cost of single part, high assembly precision requirement, high assembly difficulty and low production efficiency; (3) The illumination light path and the projection imaging light path are mutually intersected, so that the structural size of the system is increased, and the design difficulty and complexity of a projection lens are increased; (4) The multi-path light source component has large refraction difficulty, is difficult to adjust and has high cost.
Disclosure of Invention
In view of the above problems, the present application has been made to provide a lamp projection light source device and a lamp for a lamp, which overcome the above problems or at least partially solve the above problems, including:
a car light projection light source device comprises a plurality of groups of light source components, collimating lens groups, focusing lens groups and digital micro-reflectors, wherein the number of the collimating lens groups corresponds to that of the light source components;
the collimating lens group is arranged on a path of a light beam emitted by the light source component, and the path of the light beam refracted by the collimating lens group, the focusing lens group and the digital micro-reflector are arranged on the same straight line;
when the light source component emits light beams, the light beams sequentially pass through the collimating lens group and the focusing lens group to be refracted, and the offset of the focusing lens group relative to the collimating lens group is adjusted, so that the light beams emitted by different light source components irradiate different positions of the digital micro-reflector, and the digital micro-reflector processes and projects the light beams.
Further, the collimator lens further comprises a deflection assembly, wherein the deflection assembly is arranged on the path of the light beam refracted by the collimator lens group;
the refraction component is used for changing the path direction of the refraction light beam.
Further, the focusing lens group is provided with a biasing component, and the biasing component is used for changing the radial offset quantity of the optical axis of the focusing lens group relative to the optical axis of the collimating lens group.
Further, the collimating lens group comprises a concave convex type convex lens and a convex type convex lens,
one side of the concave surface of the concave-convex type convex lens is close to the light source assembly, and the other side of the concave-convex type convex lens is provided with the biconvex type convex lens;
further, the optical axis of the collimating lens group is coaxial with the center normal of the light source assembly.
Further, the focusing lens group is a convex lens.
Further, the number of the light source components and the collimating lens groups is 1-5.
Further, the light source component is an LED lamp.
A vehicle lamp comprising the vehicle lamp projection light source device of any one of the above.
The application has the following advantages:
in the embodiment of the application, compared with the problems that a car lamp lighting system adopting a DLP projection technology in the prior art needs to adopt a curved reflector for refraction, the element manufacturing cost is high and the processing and assembling difficulty is high, the application provides a car lamp projection light source device which comprises a plurality of groups of light source components, collimating lens groups, focusing lens groups and digital micro-reflectors, wherein the number of the collimating lens groups, the focusing lens groups and the digital micro-reflectors are corresponding to that of the light source components; the collimating lens group is arranged on a path of a light beam emitted by the light source component, and the path of the light beam refracted by the collimating lens group, the focusing lens group and the digital micro-reflector are arranged on the same straight line; when the light source component emits light beams, the light beams sequentially pass through the collimating lens group and the focusing lens group to be refracted, and the offset of the focusing lens group relative to the collimating lens group is adjusted, so that the light beams emitted by different light source components irradiate different positions of the digital micro-reflector, and the digital micro-reflector processes and projects the light beams. Through setting up the focusing lens group, the light beam that makes each way light source subassembly send can direct even shine digital micro-reflector, need not to set up curved surface reflector, reduces car light manufacturing cost and assembly degree of difficulty, can set up multichannel light source subassembly simultaneously, improves the degree of freedom that illumination brightness selected.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the description of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of a projection light source device for a vehicle lamp according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a DLP projection technique applied to a lamp lighting system in the prior art;
fig. 3 is a schematic structural diagram of a vehicle lamp projection light source device provided with two paths of light sources according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a light source device for projecting a vehicle lamp with three light sources according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a vehicle lamp projection light source device with a turn-back assembly according to an embodiment of the present application.
In the accompanying drawings: 101. a light source assembly; 102. a focusing lens group; 103. a digital micro-mirror; 104. a projection lens group; 105. concave-convex lens; 106. biconvex convex lens; 501. and a folding component.
Detailed Description
In order that the manner in which the above recited objects, features and advantages of the present application are obtained will become more readily apparent, a more particular description of the application briefly described above will be rendered by reference to the appended drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The inventors found by analyzing the prior art that: when the existing DLP projection technology is applied to the illumination of a car lamp, the light path is irradiated to the DMD display chip through the free-form surface reflector, as shown in fig. 2, the requirement on the precision of the refraction angle is high, a plurality of light path refraction light paths can be intersected, the design difficulty is high, and therefore the cost is increased.
Referring to fig. 1-4, a schematic structural diagram of a vehicle lamp projection light source device according to an embodiment of the present application is shown, which specifically includes:
a plurality of groups of light source components 101, collimating lens groups corresponding to the number of the light source components, focusing lens groups 102 and digital micro-reflectors 103;
the collimating lens group is arranged on a path of a light beam emitted by the light source assembly 101, and the path of the light beam refracted by the collimating lens group 101, the focusing lens group 102 and the digital micro-mirror 103 are arranged on the same straight line;
when the light source assembly 101 emits light beams, the light beams sequentially pass through the collimating lens group and the focusing lens group 102 for refraction, and the offset of the focusing lens group relative to the collimating lens group is adjusted, so that the light beams emitted by different light source assemblies 101 irradiate different positions of the digital micro-mirror 103, and the digital micro-mirror 103 processes and projects the light beams.
In the embodiment of the application, compared with the problems that a car lamp lighting system adopting a DLP projection technology in the prior art needs to adopt a curved reflector for refraction, the manufacturing cost of elements is high and the processing and assembling difficulty is high, the application provides a car lamp projection light source device, which comprises a plurality of groups of light source components 101, collimating lens groups 105 and 106 corresponding to the number of the light source components, a focusing lens group 102 and a digital micro-reflector 103; the collimating lens groups 105 and 106 are arranged on the paths of the light beams emitted by the light source assembly 101, and the paths of the light beams refracted by the collimating lens groups 105 and 106 and the focusing lens group 102 are arranged on the same straight line with the digital micro-mirror 103; when the light source assembly 101 emits light beams, the light beams sequentially pass through the collimating lens groups 105 and 106 and the focusing lens group 102, and the offset of the focusing lens group relative to the collimating lens group is adjusted, so that the light beams emitted by different light source assemblies 101 irradiate different positions of the digital micro-mirror 103, and the digital micro-mirror 103 processes and projects the light beams. By setting the offset of the focusing lens group 102, the light beams emitted by each path of light source group 101 can directly and uniformly irradiate the digital micro-reflector 103 without setting a curved reflector, so that the manufacturing cost and the assembly difficulty of the car lamp are reduced, and meanwhile, multiple paths of light source assemblies can be arranged, and the freedom degree of illumination brightness selection is improved.
It should be noted that, the focusing lens group is set to a plurality of convex lenses, the number of the convex lenses is the same as that of the light source assemblies, each convex lens corresponds to parallel light refracted by one light source assembly 101, the offset angle of the lens is adjusted, so that each path of light source assembly 101 emits light beams to be refracted by different positions of the digital micro-mirror 103, and then different projection lighting effects are realized by adjusting the digital micro-mirror 103, and finally projection lighting is presented by the projection lens group 104.
In a specific implementation, as shown in fig. 3, two light source assemblies 101 are provided, since the different positions of the convex lenses refract light at different angles, for a multi-path light source, different light sources can be used for irradiating the different positions of the convex lenses so as to realize deflection of different angles of the light path, the focusing lens group corresponding to the lower light source assembly is biased downwards, so that the light beam emitted by the lower light source assembly finally irradiates the lower part of the digital micro-mirror 103, the focusing lens group corresponding to the upper light source assembly is biased upwards, so that the light beam emitted by the upper light source assembly finally irradiates the upper part of the digital micro-mirror 103, and therefore, the light beams emitted by the two light sources irradiate all positions of the digital micro-mirror 103, and the light beam irradiated to the digital micro-mirror 103 meets the lighting requirement of the digital micro-mirror.
In another specific implementation, as shown in fig. 4, three light source assemblies 101 are provided, the focusing lens groups corresponding to the light source assemblies below are biased downward, so that the light beams emitted by the light source assemblies below finally irradiate the light beam below the digital micro-mirror 103, the focusing lens groups corresponding to the light source assemblies in the middle are not biased, so that the light beams emitted by the light source assemblies in the middle finally irradiate the middle position of the digital micro-mirror 103, the focusing lens groups corresponding to the light source assemblies above are biased upward, so that the light beams emitted by the light source assemblies above finally irradiate the light beam above the digital micro-mirror 103, and therefore all the light beams emitted by the three light sources irradiate the digital micro-mirror 103, and the light beams irradiated to the digital micro-mirror 103 meet the lighting requirements of the digital micro-mirror.
Next, a lamp projection light source device and a lamp in the present exemplary embodiment will be further described.
Referring to fig. 5, in an embodiment of the present application, the optical collimator further includes a turning component 501, where the turning component 501 is disposed on a path of the light beam refracted by the collimating lens group; the deflecting component 501 is configured to change the path direction of the refracted light beam.
It should be noted that, when the usage space of the device needs to be limited, the turning component 501 may be set up to make the light path turn by 90 ° or other angles, so that the device is installed in different spaces, unlike the prior art, the turning component 501 adopts a plane mirror, and the radian of the mirror does not need to be considered, so that the installation is convenient.
In one embodiment of the present application, the focusing lens group 102 is provided with a biasing component for changing the amount of radial offset of the optical axis of the focusing lens group 102 with respect to the optical axis of the collimating lens group. By changing the offset angle of the focusing lens group 102 and controlling the irradiation position of each light source component 101 on the digital micro-reflector, the shape and the local brightness of the illumination light generated by projection can be changed so as to adapt to the use of the car light under different scenes.
In an embodiment of the present application, the collimating lens group includes a concave-convex lens 105 and a biconvex convex lens 106, one side of the concave surface of the concave-convex lens 105 is close to the light source component 101, and the other side of the concave-convex lens 105 is provided with the biconvex convex lens 106.
The diverging light beam of the light source assembly 101 can be refracted into a small-angle light beam by the concave-convex lens 105, the concave surface of the concave-convex lens 105 faces the light source assembly 101, so that most light beams emitted by the light source assembly 101 are refracted, and the light beams which are refracted into small-angle light beams by the concave-convex lens 105 are refracted again into collimated light beams by the biconvex convex lens 106, so that the focusing lens group 102 can focus and refract the light beams of different light source assemblies, and the optical axis of the collimating lens group and the normal line of the center of the light source assembly are coaxial.
In an embodiment of the present application, the focusing lens set 102 is a convex lens. Different light sources can be refracted by setting the offset of the optical axis of the convex lens in the radial direction relative to the optical axis of the collimating lens assembly, and different positions of different digital micro-reflectors are irradiated, so that preset illumination conditions are achieved, and the convex lens can be set into one or more convex lens groups or can be set to correspond to the number of the light source assemblies 101.
In an embodiment of the present application, the number of the light source modules 101 and the collimating lens groups is 1-5, and different numbers of light source modules 101 are applied according to the minimum brightness and the maximum brightness required by the application scene.
In an embodiment of the application, the light source component is an LED lamp.
In an embodiment of the application, a vehicle lamp is also disclosed, and the vehicle lamp comprises the vehicle lamp projection light source device according to any one of the above.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the application.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The above describes in detail a projection light source device for a vehicle lamp and a vehicle lamp provided by the application, and specific examples are applied to describe the principle and implementation of the application, and the description of the above examples is only used for helping to understand the method and core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims (9)

1. The car light projection light source device is characterized by comprising a plurality of groups of light source components, collimating lens groups, focusing lens groups and digital micro-reflectors, wherein the number of the collimating lens groups corresponds to that of the light source components;
the collimating lens group is arranged on a path of a light beam emitted by the light source component, and the path of the light beam refracted by the collimating lens group, the focusing lens group and the digital micro-reflector are arranged on the same straight line;
when the light source component emits light beams, the light beams sequentially pass through the collimating lens group and the focusing lens group to be refracted, and the offset of the focusing lens group relative to the collimating lens group is adjusted, so that the light beams emitted by different light source components irradiate different positions of the digital micro-reflector, and the digital micro-reflector processes and projects the light beams.
2. The apparatus of claim 1, further comprising a deflection assembly disposed in a path of the light beam refracted by the collimating lens group;
the refraction component is used for changing the path direction of the refraction light beam.
3. The apparatus of claim 1, wherein the focusing lens group is provided with a biasing assembly for varying the amount of radial offset of the optical axis of the focusing lens group relative to the optical axis of the collimating lens group.
4. The apparatus of claim 1, wherein the collimating lens group comprises a concave-convex type convex lens and a biconvex type convex lens,
one side of the concave surface of the concave-convex type convex lens is close to the light source assembly, and the other side of the concave-convex type convex lens is provided with the biconvex type convex lens;
5. the apparatus of claim 1, wherein an optical axis of the collimating lens group is coaxial with a center normal of the light source assembly.
6. The apparatus of claim 1, wherein the focusing lens group is a convex lens.
7. The apparatus of claim 1, wherein the number of light source modules and collimating lens groups is 1-5.
8. The apparatus of claim 1, wherein the light source assembly is an LED lamp.
9. A vehicle lamp comprising the vehicle lamp projection light source device according to any one of claims 1 to 8.
CN202310928194.0A 2023-07-26 2023-07-26 Car light projection light source device and car light Pending CN116857583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310928194.0A CN116857583A (en) 2023-07-26 2023-07-26 Car light projection light source device and car light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310928194.0A CN116857583A (en) 2023-07-26 2023-07-26 Car light projection light source device and car light

Publications (1)

Publication Number Publication Date
CN116857583A true CN116857583A (en) 2023-10-10

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Application Number Title Priority Date Filing Date
CN202310928194.0A Pending CN116857583A (en) 2023-07-26 2023-07-26 Car light projection light source device and car light

Country Status (1)

Country Link
CN (1) CN116857583A (en)

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