Automobile front projection lamp based on MEMS galvanometer principle and vehicle

Abstract

The utility model belongs to the technical field of automobile lighting, and particularly relates to an automobile front projection lamp based on the MEMS galvanometer principle and a vehicle, and the automobile front projection lamp comprises an MEMS galvanometer module and a laser light source; the MEMS galvanometer module is arranged on one side of the laser light source; light emitted by the laser light source is reflected by the MEMS galvanometer module; the laser light source is adopted as a main light source, energy consumption is reduced, and the whole projection lamp can react more rapidly through reflection of the MEMS galvanometer module.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile lighting, and in particular relates to an automobile front projection lamp based on the MEMS galvanometer principle and a vehicle. Background Art

[0002] Currently, mid-range and low-end vehicles on the market mostly use fixed light sources for road illumination, which often fails to meet safe driving requirements in today's complex road conditions and extreme weather conditions. While DLP (Digital Light Projection) systems used in high-end vehicles can address complex road projection requirements, they often suffer from low resolution, high energy consumption, slow response speed, and high cost. Furthermore, fixed light sources have a fixed illumination range, making them difficult to meet the lighting needs of complex road conditions.

[0003] Therefore, due to the technical problems of high energy consumption, slow response and fixed illumination range of car lights in the related art, it is necessary to design a new car front projection lamp and vehicle based on the MEMS galvanometer principle. Utility Model Content

[0004] The purpose of the utility model is to provide a car front projection lamp and a vehicle based on the MEMS galvanometer principle, so as to solve the technical problems of high energy consumption and slow response of car lamps.

[0005] In order to solve the above technical problems, the utility model provides a car front projection lamp based on the MEMS galvanometer principle, comprising:

[0006] MEMS galvanometer module and laser light source;

[0007] The MEMS galvanometer module is arranged on one side of the laser light source;

[0008] The light emitted by the laser light source is reflected by the MEMS galvanometer module.

[0009] Furthermore, a lens module is provided on one side of the MEMS galvanometer module;

[0010] The light reflected by the MEMS galvanometer module passes through the lens module; wherein

[0011] The lens module comprises: a housing, a first convex lens, a second concave lens and a third convex lens;

[0012] The second concave lens is disposed between the first concave lens and the third concave lens;

[0013] The first convex lens, the second concave lens and the third convex lens are arranged in the housing;

[0014] A screw is rotatably arranged in the housing;

[0015] The first convex lens, the second concave lens and the third convex lens are all arranged on the screw.

[0016] Furthermore, the MEMS galvanometer module is electrically connected to a driving module, and the driving module is suitable for adjusting the swing angle of the MEMS mirror in the MEMS galvanometer module.

[0017] Furthermore, the driving module is adapted to receive CAN signals and HDMI signals.

[0018] Furthermore, the MEMS galvanometer module, the laser light source and the lens module are arranged in a lamp housing.

[0019] Furthermore, a bracket is provided in the lamp housing, and the bracket is suitable for fixing the MEMS galvanometer module and the laser light source.

[0020] Furthermore, an outer lampshade is provided on the lamp housing, and the light passes through the lens module and then through the outer lampshade to illuminate the road surface.

[0021] Furthermore, the outer lampshade is suitably made of a transparent material.

[0022] Furthermore, the outer lampshade and the lamp housing are snap-connected together.

[0023] On the other hand, the present invention also provides a vehicle using the above-mentioned MEMS galvanometer-based automotive front projection lamp, comprising:

[0024] A vehicle body and a plurality of automobile front projection lamps based on the MEMS galvanometer principle arranged at the front part of the vehicle body.

[0025] The beneficial effect of the present invention is that the present invention includes a MEMS galvanometer module and a laser light source; the MEMS galvanometer module is arranged on one side of the laser light source; the light emitted by the laser light source is reflected by the MEMS galvanometer module; the laser light source is used as the main light source to reduce energy consumption, and the reflection through the MEMS galvanometer module can make the overall projection lamp respond more quickly.

[0026] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a structural diagram of the automotive front projection lamp based on the MEMS galvanometer principle of the present invention;

[0030] Figure 2 This is a schematic structural diagram of the lens module of the present invention;

[0031] Figure 3 This is a schematic diagram of a front projection lamp for automobiles based on the MEMS galvanometer principle of the present invention.

[0032] In the picture:

[0033] 1. Outer lampshade; 2. Lamp housing; 3. Laser light source; 4. MEMS galvanometer module; 5. Drive module; 6. Bracket; 7. Lens module, 71 housing, 72 first convex lens, 73 second concave lens, 74 third convex lens, 75 screw. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] like Figure 1 and Figure 3 As shown, in at least one embodiment, a car front projection lamp based on the MEMS galvanometer principle is provided, including: a MEMS galvanometer module 4 and a laser light source 3; MEMS (Micro-Electro-Mechanical Systems) galvanometer technology; the MEMS galvanometer module 4 is arranged on one side of the laser light source 3; the light emitted by the laser light source 3 is reflected by the MEMS galvanometer module 4; the laser light source 3 is used as the main light source to reduce energy consumption, and the reflection through the MEMS galvanometer module 4 can make the overall projection lamp respond more quickly.

[0036] The light emitted by the laser light source 3 can be reflected by the MEMS galvanometer module 4 and then irradiated on the road surface; the laser light source 3 is used as the main light source, which is small in size, highly directional, and has low energy consumption. The MEMS galvanometer module 4 is used as the light source control solution, which has a long life, high reliability, and rapid response.

[0037] The laser light source 3 may be a white light laser light source 3 to meet the requirements of vehicle lighting.

[0038] When selecting the MEMS galvanometer module 4, parameters such as mirror diameter, horizontal resonance frequency, optical deflection angle, and driving voltage should be considered.

[0039] The light emitted from the white light laser light source 3 is irradiated onto the MEMS galvanometer module 4. After being reflected by the MEMS mirror surface of the MEMS galvanometer module 4, it is expanded by the lens module 7 and then irradiated onto the road surface through the outer lampshade 1 to form a pattern. The MEMS galvanometer module 4 receives a signal from the driving module 5 to adjust the swing angle of the MEMS mirror surface.

[0040] The MEMS galvanometer module 4 is electrically connected to a driving module 5, which is suitable for adjusting the swing angle of the MEMS mirror in the MEMS galvanometer module 4. The X and Y axis rotation signals emitted by the driving module 5 cause the MEMS mirror to rotate and adjust the reflection angle; the driving module 5 can be integrated on a circuit board and installed in the lamp housing 2.

[0041] The driving module 5 is suitable for receiving CAN signals and HDMI signals, and can accept CAN signals to project fixed patterns and HDMI signals to project patterns and videos; the driving module 5 is connected to the vehicle's computer via HDMI and to the HCM / ADS system via CAN.

[0042] like Figure 2As shown, a lens module 7 is provided on one side of the MEMS galvanometer module 4; the light reflected by the MEMS galvanometer module 4 passes through the lens module 7 and is irradiated on the road surface to form a clear pattern; the lens module 7 is composed of a plurality of concave and convex lenses, which can expand the light reflected by the MEMS galvanometer module 4, adjust the field of view and focal length of the road surface pattern, and achieve close focus and clear large images through the lens module 7; the lens module includes: a housing 71, a first convex lens 72, a second concave lens 73 and a third convex lens 74; the second concave lens 73 is provided between the first concave lens and The first convex lens 72, the second concave lens 73 and the third convex lens 74 are arranged in the shell 71; a screw 75 is rotatably arranged in the shell 71; the first convex lens 72, the second concave lens 73 and the third convex lens 74 are all arranged on the screw 75; the first convex lens 72 is a half-moon convex lens, the second concave lens 73 is a half-moon concave lens, and the third convex lens 74 is a half-moon convex lens; the positions of the first convex lens 72, the second concave lens 73 and the third convex lens 74 are adjusted and determined by adjusting the threads on the screw 75, thereby achieving a clear projection effect.

[0043] The MEMS galvanometer module 4 , the laser light source 3 and the lens module 7 are arranged in the lamp housing 2 .

[0044] A bracket 6 is provided in the lamp housing 2, and the bracket 6 is suitable for fixing the MEMS galvanometer module 4 and the laser light source 3. An outer lampshade 1 is provided on the lamp housing 2, and light passes through the outer lampshade 1 after passing through the lens module 7 and irradiates the road surface. The outer lampshade 1 is suitable for being made of a transparent material, which facilitates the light to pass through and irradiate the road surface. The outer lampshade 1 is snapped together with the lamp housing 2, which facilitates the disassembly of the outer lampshade 1 and the inspection and maintenance of the various components in the lamp housing 2. Installing the various components in the lamp housing 2 can be used as a standardized design, which has the advantages of versatility and small size, and can be integrated into various lamps such as headlights and through-lights.

[0045] In at least one other embodiment, a vehicle using the above-mentioned MEMS galvanometer-based automotive front projection lamp is provided, comprising: a vehicle body, and a plurality of MEMS galvanometer-based automotive front projection lamps arranged at the front of the vehicle body.

[0046] To sum up, the present invention includes a MEMS galvanometer module 4 and a laser light source 3; the MEMS galvanometer module 4 is arranged on one side of the laser light source 3; the light emitted by the laser light source 3 is reflected by the MEMS galvanometer module 4 and then irradiated on the road surface; the laser light source 3 is used as the main light source to reduce energy consumption, and the reflection through the MEMS galvanometer module 4 can make the overall projection lamp respond more quickly.

[0047] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0048] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0049] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0050] With the above-mentioned ideal embodiment of the present invention as inspiration, and through the above-mentioned description, relevant personnel can make various changes and modifications without departing from the scope of the technical idea of ​​the present invention.

Claims

1. A car front projection lamp based on the MEMS galvanometer principle, characterized in that: include: MEMS galvanometer module and laser light source; The MEMS galvanometer module is arranged on one side of the laser light source; The light emitted by the laser light source is reflected by the MEMS galvanometer module; A lens module is provided on one side of the MEMS galvanometer module; The light reflected by the MEMS galvanometer module passes through the lens module; in The lens module comprises: a housing, a first convex lens, a second concave lens and a third convex lens; The second concave lens is arranged between the first convex lens and the third convex lens; The first convex lens, the second concave lens and the third convex lens are arranged in the housing; A screw is rotatably arranged in the housing; The first convex lens, the second concave lens and the third convex lens are all arranged on the screw.

2. The automotive front projection lamp based on the MEMS galvanometer principle according to claim 1, characterized in that: The MEMS galvanometer module is electrically connected to a driving module, and the driving module is suitable for adjusting the swing angle of the MEMS mirror surface in the MEMS galvanometer module.

3. The automotive front projection lamp based on the MEMS galvanometer principle as claimed in claim 2, characterized in that: The driving module is suitable for receiving CAN signals and HDMI signals.

4. The automotive front projection lamp based on the MEMS galvanometer principle according to claim 1, characterized in that: The MEMS galvanometer module, the laser light source and the lens module are arranged in a lamp housing.

5. The automotive front projection lamp based on the MEMS galvanometer principle as claimed in claim 4, characterized in that: A bracket is provided in the lamp housing, and the bracket is suitable for fixing the MEMS galvanometer module and the laser light source.

6. The automotive front projection lamp based on the MEMS galvanometer principle as claimed in claim 4, characterized in that: An outer lampshade is provided on the lamp housing, and light passes through the lens module and then through the outer lampshade to illuminate the road surface.

7. The automotive front projection lamp based on the MEMS galvanometer principle as claimed in claim 6, characterized in that: The outer lampshade is suitably made of a transparent material.

8. The automotive front projection lamp based on the MEMS galvanometer principle as claimed in claim 6, characterized in that: The outer lampshade is clamped together with the lamp housing.

9. A vehicle using the MEMS galvanometer principle-based automotive front projection lamp according to any one of claims 1 to 8, characterized in that: include: A vehicle body and a plurality of automobile front projection lamps based on the MEMS galvanometer principle arranged at the front part of the vehicle body.

Images