CN215216058U - Car light projection module and car light assembly - Google Patents

Abstract

The application discloses car light projection module and car light assembly, this projection module includes: the micro-lens array comprises a first lens array with a plurality of first lenses, a diaphragm layer, a base material and a second lens array with a plurality of second lenses, the first lens array, the diaphragm layer, the base material and the second lens array are integrally manufactured, a plurality of light holes with the specific pattern outline are formed in the diaphragm layer, the micro-lens array comprises a plurality of light channels, and in each light channel, the first lenses, the light holes and the second lenses are in one-to-one correspondence and are sequentially arranged along a projection light path. The diaphragm inside the micro-lens array is replaced by a zebra crossing, a reversing aid, a steering sign and the like, and the diaphragm is projected to the ground in a headlamp, a tail lamp or a steering lamp of a vehicle through the combination of a single micro-lens array or a plurality of micro-lens arrays, so that the interaction between the vehicle and pedestrians is enhanced.

Description

Car light projection module and car light assembly

Technical Field

The present application relates to a projection module for use in a lamp for a motor vehicle or a non-motor vehicle, and to a lamp assembly having the module.

Background

At present, a driving assistance system of a vehicle can only display a lane assistance line, a reverse assistance line and the like on a driving computer in a virtual manner, and cannot realize information interaction between vehicles and pedestrians.

SUMMERY OF THE UTILITY MODEL

The application provides an adopt car light projection module of microlens array technique, integrated in the car light assembly, can combine the actual action of traveling of vehicle, with specific pattern projection to ground, play functional effect.

The application also provides a car lamp assembly with the car lamp projection module, which can project specific patterns to the ground according to the instruction information sent by drivers and passengers or a driving computer.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a vehicle lamp projection module, comprising: the light source comprises a collimating lens for converting light beams emitted by the light source into parallel light and a micro-lens array for projecting the incident parallel light on the ground to form a specific pattern, wherein the micro-lens array comprises a first lens array with a plurality of first lenses, a diaphragm layer, a base material and a second lens array with a plurality of second lenses, the first lens array, the diaphragm layer, the base material and the second lens array are integrally manufactured, a plurality of light transmitting holes with the specific pattern outline are formed in the diaphragm layer, the micro-lens array comprises a plurality of light channels, and in each light channel, the first lenses, the light transmitting holes and the second lenses are in one-to-one correspondence and are sequentially arranged along a projection light path.

In a possible implementation manner, the car light projection module includes a light emitting unit, and the light source is from the light emitting unit.

In a possible implementation mode, the light-emitting unit and a light module of the vehicle lamp are controlled independently.

In a possible implementation mode, the light-emitting unit is in linkage control with a light module of the vehicle lamp.

In a possible implementation manner, the light source is from a light module of a vehicle lamp.

In one possible implementation, the images of the light channels coincide.

In a second aspect, the present application provides a car light assembly, including shell, light cover, one or more than two be used for illumination or the light module of instruction and can present the car light projection module of specific pattern subaerial, car light projection module include with the collimating mirror of the light beam conversion parallel light of light source transmission and the microlens array that has a plurality of light passageways, microlens array including the first lens array that has a plurality of first lenses, diaphragm layer, substrate, the second lens array that has a plurality of second lenses, the diaphragm layer on seted up a plurality of light traps that have this specific pattern profile, in each light passageway, first lens, light trap and second lens one-to-one and along projection light path arrange in proper order.

In a possible implementation manner, the light paths of the car lamp projection module and the light module are mutually independent, the car lamp projection module comprises a light emitting unit, and the light source of the car lamp projection module is from the light emitting unit.

In a possible implementation manner, the light source of the car lamp projection module is from the light module.

In a possible implementation manner, the car lamp assembly further comprises a control module electrically connected with the light module and the car lamp projection module respectively, and the control module is used for receiving external instruction information to turn on or turn off the car lamp projection module.

In one possible implementation, the control module is further configured to reduce the illumination of the light module when the vehicle lamp projection module is turned on.

In a possible implementation manner, the first lens array, the diaphragm layer, the substrate, and the second lens array are integrally manufactured.

The diaphragm inside the micro-lens array is replaced by a zebra crossing, a reversing aid, a steering sign and the like, and the diaphragm is projected to the ground in a headlamp, a tail lamp or a steering lamp of a vehicle through the combination of a single micro-lens array or a plurality of micro-lens arrays, so that the interaction between the vehicle and pedestrians is enhanced.

Drawings

Fig. 1 is a schematic light path diagram of a vehicle lamp projection module according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a diaphragm layer provided in an embodiment of the present application.

Fig. 3 is a schematic light-emitting diagram (zebra crossing) of a vehicle lamp assembly according to an embodiment of the present disclosure.

Fig. 4 is a schematic light-emitting diagram (turning indicator line) of a vehicle lamp assembly according to an embodiment of the present application.

Fig. 5 is a schematic light-emitting diagram (reverse line) of a vehicle lamp assembly according to an embodiment of the present disclosure.

Detailed Description

To explain technical contents, structural features, achieved objects and effects of the present invention in detail, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Moreover, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the particular shapes, configurations and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

Further, spatially relative terms such as "below … …," "below … …," "below … …," "below," "above … …," "above," "… …," "higher," "side" (e.g., as in "side wall"), etc., are used herein to describe one element's relationship to another (other) element as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of above and below. Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate.

The embodiment of the application provides a car light projection module and have this projection module's car light assembly. The lamp assembly can be used for vehicles such as automobile trucks, buses, motorcycles, electric vehicles or bicycles, such as a front lighting lamp assembly or a reversing lamp of an automobile, a steering indicator lamp and the like. The embodiment of the present application does not specifically limit the specific form of the above-mentioned vehicle lamp assembly. For convenience of explanation, the following description will be given by taking an automobile lamp as an example.

A vehicle lamp assembly comprises a housing, a light cover, one or more than two lamp modules for illumination or indication and a vehicle lamp projection module 1 capable of presenting specific patterns on the ground. Referring to fig. 1, the vehicular lamp projection module includes: a collimating mirror 20 converting a light beam emitted from the light source into parallel light and a micro lens array 30 projecting the incident parallel light on the ground to form a specific pattern.

The microlens array 30 includes a first lens array 31 having a plurality of first lenses, a diaphragm layer 32, a substrate 33, and a second lens array 34 having a plurality of second lenses. The microlens array 30 is integrally made of a polymer material by a semiconductor manufacturing process, and has a compact structure. The base material 33 is made of a transparent material, the diaphragm layer 32 is formed on the surface of the base material, and the first lens array 31 and the second lens array 34 are made of polymer glue and are respectively bonded on the base material through imprinting.

The micro lens array 30 includes a plurality of optical channels, and in each optical channel, the first lens, the light hole and the second lens are in one-to-one correspondence and are sequentially arranged along the projection optical path. In order to improve the brightness of the patterns projected on the ground by the vehicle lamp projection module, in the preferred embodiment of the application, images formed by all the light channels are overlapped, so that a plurality of projected patterns can be overlapped on an imaging plane, and the imaging definition is improved.

The aperture layer 32 is provided with a plurality of light holes 320 having a specific pattern profile. The light holes 320 corresponding to each light channel may be one or a group, such as a left-turn arrow, a right-turn arrow, a zebra crossing, a reverse indication line, etc. shown in fig. 3-5, and may also be graphics or text carrying other interactive information. After the light passes through the light holes, the patterns or the character patterns corresponding to the opening outlines of the light holes can be presented on the ground.

In one embodiment of the application, the light paths of the car lamp projection module and the car lamp module are independent. The car light module can include an illuminating lamp, a position indicator lamp, a turn signal lamp, a brake lamp and other indicator lamps, the car light projection module is provided with a light emitting unit 10, and the light source of the car light projection module is provided with the light emitting unit 10. The automobile lamp projection module has the advantages that the automobile lamp projection module can work independently, and complex modification on the original automobile lamp structure is not needed.

The vehicle lamp assembly further comprises a control module for receiving external instruction information to control the vehicle lamp to be turned on, turned off and dimmed. The control module is respectively electrically connected with the light module and the car light projection module.

In one embodiment, the light emitting unit 10 is independently controlled from a light module of a vehicle lamp. When the control module receives external instruction information (the information may be from active triggering of a user or from a driving computer), the control module can turn off the light module for a short time or turn down the brightness of the light module, so that the pattern projected on the ground by the vehicle lamp projection module can be clearly presented. For example, when a driver drives at night and encounters a pedestrian crossing the road, the brightness of the front lighting can be reduced while the lamp projection module is turned on, as shown in fig. 3.

In another embodiment, the light emitting unit 10 and the light module of the car light are controlled in a linkage manner, i.e. no operation is required by a consumer, and the projection module of the car light can be automatically turned on when a specific light module is started. For example, when the vehicle turns left or right, the turn indicator lights are turned on, and the corresponding vehicle lamp projection module automatically projects a left or right turn indicator arrow on the ground to remind passing vehicles and pedestrians, as shown in fig. 4. Fig. 5 is a projection performed behind the vehicle while reversing the vehicle.

In another embodiment of the present application, the light source of the car light projection module is from the light module of the car light, i.e. the car light projection module shares the same light source with the light module. Such as when the turn signal lights are on, the vehicle light projection module is automatically illuminated to project left/right turn arrows on the ground. In a similar way, the backing auxiliary line is displayed when backing.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims, specification and equivalents thereof.

Claims (12)

1. A vehicle lamp projection module, comprising: the light source comprises a collimating lens (20) for converting light beams emitted by a light source into parallel light and a micro-lens array (30) for projecting the incident parallel light on the ground to form a specific pattern, wherein the micro-lens array (30) comprises a first lens array (31) with a plurality of first lenses, a diaphragm layer (32), a base material (33) and a second lens array (34) with a plurality of second lenses, the first lens array (31), the diaphragm layer (32), the base material (33) and the second lens array (34) are integrally manufactured, a plurality of light holes (320) with the specific pattern outline are formed in the diaphragm layer (32), the micro-lens array (30) comprises a plurality of light channels, and in each light channel, the first lenses, the light holes and the second lenses are in one-to-one correspondence and are sequentially arranged along a projection light path.

2. The vehicular lamp projection module according to claim 1, wherein the vehicular lamp projection module comprises a light emitting unit (10), and the light source is derived from the light emitting unit (10).

3. Vehicle lamp projection module according to claim 2, wherein the light unit (10) is controlled independently of the lamp module of the vehicle lamp.

4. The car light projection module according to claim 2, wherein the light emitting unit (10) is controlled in cooperation with a light module of a car light.

5. The vehicular lamp projection module according to claim 1, wherein the light source is a light module of a vehicular lamp.

6. The vehicular lamp projection module of claim 1, wherein the images of the light channels coincide.

7. The car lamp assembly is characterized by comprising a shell, a light cover, one or more than two lamp modules for lighting or indicating and a car lamp projection module (1) capable of presenting a specific pattern on the ground, wherein the car lamp projection module comprises a collimating mirror (20) for converting light beams emitted by a light source into parallel light and a micro lens array (30) with a plurality of light channels, the micro lens array (30) comprises a first lens array (31) with a plurality of first lenses, a diaphragm layer (32), a base material (33) and a second lens array (34) with a plurality of second lenses, a plurality of light holes (320) with specific pattern outlines are formed in the diaphragm layer (32), and in each light channel, the first lenses, the light holes and the second lenses are in one-to-one correspondence and are sequentially arranged along a projection light path.

8. The lamp assembly of claim 7 wherein: the light path mutual independence of car light projection module and light module, car light projection module include a luminescence unit (10), car light projection module's light source come from luminescence unit (10).

9. The lamp assembly of claim 7 wherein: the light source of the car lamp projection module is from the light module.

10. The lamp assembly of claim 9 wherein: the car light assembly still include with light module and car light projection module respectively the control module of electricity connection, control module be used for receiving external instruction information and open or close car light projection module.

11. The lamp assembly of claim 10 wherein: the control module is also configured to reduce the illumination of the light module when the vehicle lamp projection module is turned on.

12. The lamp assembly of claim 7 wherein: the first lens array (31), the diaphragm layer (32), the base material (33) and the second lens array (34) are integrally manufactured.

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