Reflector optical structure and vehicle lamp

Abstract

The utility model relates to a reflecting mirror optical structure and a car lamp. The reflecting mirror optical structure comprises a first LED light source, a second LED light source, a reflecting mirror, a light uniformizing piece and a light gathering piece. The end surface of the rear end of the light uniformizing piece is a light inlet surface; the reflecting surface of the reflecting mirror comprises a first reflecting surface and a second reflecting surface which are connected with each other; light emitted by the second LED light source is reflected by the second reflecting surface to form collimated light, and the collimated light enters the light equalizing piece from the upper side of the light inlet surface; light emitted by the first LED light source is firstly condensed by the light condensing part, then is transmitted to the first reflecting surface, and then is reflected by the first reflecting surface to form collimated light which enters the light equalizing part from the lower side of the light incoming surface; compared with the prior art, a row of first LED light sources are additionally arranged, and the first LED light sources and the second LED light sources can illuminate the lower side area and the upper side area of the light uniformizing piece respectively, so that the brightness of the upper side and the lower side of the light uniformizing piece is uniform, and the lighting effect of the automobile lamp is uniform; the car lamp is provided with the reflector optical structure and has the same technical effect.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a reflector optical structure and a vehicle lamp. Background Art

[0002] With the advancement of automobile technology, car lights have gradually evolved from a simple lighting tool to a personalized and innovative direction. On the premise of meeting functional requirements, they have begun to focus on design and visual effects. At present, the lighting effects of automobile lamps are becoming more and more novel. Due to the needs of styling, some car lights have a higher Z-direction light-emitting surface, which increases the demand for optical structure. In the existing technology, the light-emitting structure is as follows: Figure 1 As shown, it includes a row of LED light sources 01, a reflector 02, a thick-walled component 03 and a PCB board 04. The light emitted by the LED light source 01 is reflected by the reflector 02 to form a collimated light and then enters from the rear end of the thick-walled component 03. For a headlight with a higher light-emitting surface in the Z direction, the Z-direction dimension of the thick-walled component 03 is larger, and the reflector 02 needs to be set larger. The light transmitted from the LED light source 01 to the lower side of the reflector 02 is far less than the light transmitted to the upper side of the reflector 02, resulting in darker brightness on the lower side of the thick-walled component 03 and uneven lighting effect of the headlight. Utility Model Content

[0003] The first purpose of the present invention is to provide a reflector optical structure to solve the problem of uneven lighting effect of LED light sources in the prior art for headlights with higher light-emitting surfaces in the Z direction. The second purpose of the present invention is to provide a headlight.

[0004] In order to achieve the above first purpose, the technical solution adopted by the present utility model is:

[0005] A reflector optical structure includes a first LED light source, a second LED light source, a reflector, a light equalizer and a light focusing element; the light equalizer is arranged in front of the reflector, and its rear end face is a light incident surface; the reflective surface of the reflector includes a first reflective surface and a second reflective surface that are connected; light emitted by the second LED light source is reflected by the second reflective surface to form collimated light and enters the light equalizer from the upper side of the light incident surface; light emitted by the first LED light source is first focused by the light focusing element and then propagates to the first reflective surface, and then reflected by the first reflective surface to form collimated light and enters the light equalizer from the lower side of the light incident surface.

[0006] The utility model adopts the above-mentioned technical solution, and adds a row of first LED light sources on the basis of the existing technology that only has one row of second LED light sources. At the same time, the reflective surface of the reflector is set as a first reflective surface and a second reflective surface that are connected. The second LED light source can form collimated light after being reflected by the second reflective surface and propagate to the upper side of the light-incoming surface. The focusing member collects the light emitted by the first LED light source so that it can propagate to the first reflective surface, and then form collimated light after being reflected by the first reflective surface and propagate to the lower side of the light-incoming surface; in this way, the brightness of the upper and lower sides of the light-equalizing member is uniform; compared with the problem of uneven lighting effect of LED light sources for car lights with higher light-emitting surfaces in the Z direction in the existing technology, the utility model adds a row of first LED light sources, and the first LED light source and the second LED light source can illuminate the lower and upper areas of the light-equalizing member respectively, so that the brightness of the upper and lower sides of the light-equalizing member is uniform, and the lighting effect of the car lights is uniform.

[0007] Furthermore, the light homogenizing member is a thick-walled member, or a combination of two thick-walled members, or a combination of a thick-walled member and another type of optical component.

[0008] Furthermore, the reflector is tilted with its reflective surface facing upward and forward; the first LED light source and the second LED light source are arranged above the reflector with a front-to-back interval, and the first reflective surface and the second reflective surface are respectively located below the first LED light source and the second LED light source.

[0009] Furthermore, it also includes a PCB board arranged above the reflector, and the first LED light source, the second LED light source and the focusing element are all installed on the PCB board; with this arrangement, the overall structure is compact.

[0010] Furthermore, the collimated light formed after being reflected by the first reflecting surface and the second reflecting surface enters the light evenly distributed component perpendicularly to the light incident surface; the collimated light enters the light evenly distributed component perpendicularly to the light incident surface, and the lighting effect of the vehicle lamp is good.

[0011] Furthermore, the reflector includes a first reflector and a second reflector that are detachably fixedly connected, and the reflecting surfaces of the first reflector and the second reflector are respectively the first reflecting surface and the second reflecting surface; with such an arrangement, first reflectors and second reflectors of different specifications can be selected according to actual conditions, and then combined to form a reflector, which is more flexible.

[0012] Furthermore, the first reflecting surface and the second reflecting surface are both parabolic surfaces; the second LED light source is located at the focus of the second reflecting surface; and collimated light can be formed by the parabolic reflector.

[0013] Furthermore, the light focusing element is a convex lens; the convex lens has a good light focusing effect and is easy to obtain.

[0014] To achieve the second purpose, the present invention adopts the following technical solutions:

[0015] A vehicle lamp comprises the above-mentioned reflector optical structure.

[0016] Compared with the existing technology, the beneficial effects of the present invention are: a row of first LED light sources is added, and the first LED light source and the second LED light source can illuminate the lower and upper areas of the light-evening element respectively, so that the brightness of the upper and lower sides of the light-evening element is uniform, and the lighting effect of the car lights is uniform; the car lights have the same technical effect as the aforementioned reflector optical structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the prior art structure;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model;

[0019] Figure 3 This is the optical path diagram of the utility model.

[0020] Markings in the figure: 01-LED light source, 02-reflector, 03-thick-walled part, 04-PCB board, 1-first LED light source, 2-second LED light source, 3-reflector, 4-light-distributing part, 5-light-focusing part, 6-PCB board, 31-first reflecting surface, 32-second reflecting surface, 41-light-incoming surface. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings.

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Embodiment 1: This embodiment provides a reflector optical structure, such as Figure 1-Figure 3 As shown, it includes a first LED light source 1, a second LED light source 2, a reflector 3, a light homogenizer 4 and a light concentrating member 5; the light homogenizer 4 is arranged in front of the reflector 3, and its rear end face is a light inlet surface 41; the reflective surface of the reflector 3 includes a first reflective surface 31 and a second reflective surface 32 connected to each other; the light emitted by the second LED light source 2 is reflected by the second reflective surface 32 to form a collimated light and enters the light homogenizer 4 from the upper side of the light inlet surface 41; the light emitted by the first LED light source 1 is first concentrated by the concentrating member 5 and then propagates to the first reflective surface 31, and then reflected by the first reflective surface 31 to form a collimated light and enter the light homogenizer 4 from the lower side of the light inlet surface 41;

[0024] The structure of the light-distributing member 4 is not limited as long as it can achieve the light-distributing effect. The light-distributing member 4 can be a single thick-walled member or a combination of multiple thick-walled members. In addition, the light-distributing member 4 can also be a combination of a single thick-walled member and other types of optical components, or a combination of multiple thick-walled members and other types of optical components.

[0025] In actual application scenarios, usually: the light homogenizing member 4 is a thick-walled member, or a combination of two thick-walled members, or a combination of a thick-walled member and another type of optical component;

[0026] The reflector 3 is tilted, with its reflective surface facing upward and forward. The first LED light source 1 and the second LED light source 2 are spaced apart from each other above the reflector 3. The first reflective surface 31 and the second reflective surface 32 are respectively located below the first LED light source 1 and the second LED light source 2. The concentrating element 5 converges the light emitted by the first LED light source 1 so that the light can be transmitted to the first reflective surface 31. The light converged by the concentrating element 5 is divergent light.

[0027] It also includes a PCB board 6 arranged above the reflector 3, and the first LED light source 1, the second LED light source 2 and the focusing element 5 are all mounted on the PCB board 6;

[0028] The collimated light formed after being reflected by the first reflective surface 31 and the second reflective surface 32 enters the light homogenizer 4 perpendicular to the light incident surface 41. In fact, the collimated light does not need to be completely perpendicular to the light incident surface 41. The direction of the collimated light can also be slightly angled with the normal of the light incident surface 41 to still achieve the lighting effect of the car lamp.

[0029] The reflector 3 includes a first reflector and a second reflector that are detachably fixedly connected, and the reflective surfaces of the first reflector and the second reflector are a first reflective surface 31 and a second reflective surface 32 respectively;

[0030] The first reflecting surface 31 and the second reflecting surface 32 are both parabolic surfaces; the second LED light source 2 is located at the focus of the second reflecting surface 32;

[0031] The focusing element 5 can be any optical element that can focus light, and can be a trumpet-shaped reflector covering the first LED light source 1 or a convex lens closely disposed below the first LED light source 1 .

[0032] The utility model adopts the above-mentioned technical solution, and adds a row of first LED light sources 1 on the basis of the existing technology which has only one row of second LED light sources 2. At the same time, the reflecting surface of the reflector 3 is set to a first reflecting surface 31 and a second reflecting surface 32 connected to each other. The second LED light source 2 can form a collimated light after being reflected by the second reflecting surface 32 and propagate to the upper side of the light-incoming surface 41. The focusing member 5 collects the light emitted by the first LED light source 1 so that it can propagate to the first reflecting surface 31, and then form a collimated light after being reflected by the first reflecting surface 31 and propagate to the lower side of the light-incoming surface 41; in this way, the brightness of the upper and lower sides of the light-equalizing member 4 is uniform; compared with the problem of uneven lighting effect of the LED light source for the car lamp with a higher light-emitting surface in the Z direction in the existing technology, the utility model adds a row of first LED light sources, and the first LED light source and the second LED light source can illuminate the lower and upper areas of the light-equalizing member respectively, so that the brightness of the upper and lower sides of the light-equalizing member is uniform, and the lighting effect of the car lamp is uniform.

[0033] Embodiment 2, a vehicle lamp, comprising the above-mentioned reflector optical structure.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reflector optical structure, characterized in that: The invention comprises a first LED light source (1), a second LED light source (2), a reflector (3), a light-distributing member (4) and a light-collecting member (5); the light-distributing member (4) is arranged in front of the reflector (3), and its rear end face is a light-entering surface (41); the reflecting surface of the reflector (3) comprises a first reflecting surface (31) and a second reflecting surface (32) connected to each other; the light emitted by the second LED light source (2) is reflected by the second reflecting surface (32) to form collimated light and enters the light-distributing member (4) from the upper side of the light-entering surface (41); the light emitted by the first LED light source (1) is first concentrated by the light-collecting member (5) and then propagates to the first reflecting surface (31), and then reflected by the first reflecting surface (31) to form collimated light and enters the light-distributing member (4) from the lower side of the light-entering surface (41).

2. The reflector optical structure according to claim 1, wherein: The light homogenizing component (4) is a thick-walled component, or a combination of two thick-walled components, or a combination of a thick-walled component and an optical component of another type.

3. The reflector optical structure according to claim 1, wherein: The reflector (3) is arranged at an angle, with its reflective surface facing upward and forward; the first LED light source (1) and the second LED light source (2) are arranged above the reflector (3) at intervals in front and back, and the first reflective surface (31) and the second reflective surface (32) are respectively located below the first LED light source (1) and the second LED light source (2).

4. The reflector optical structure according to claim 3, wherein: It also includes a PCB board (6) arranged above the reflector (3), and the first LED light source (1), the second LED light source (2) and the focusing element (5) are all mounted on the PCB board (6).

5. The reflector optical structure according to claim 1, wherein: The collimated light formed after being reflected by the first reflecting surface (31) and the second reflecting surface (32) enters the light homogenizing element (4) perpendicularly to the light incident surface (41).

6. The reflector optical structure according to claim 1, wherein: The reflector (3) comprises a first reflector and a second reflector which are detachably fixedly connected, and the reflective surfaces of the first reflector and the second reflector are respectively a first reflective surface (31) and a second reflective surface (32).

7. The reflector optical structure according to claim 1, wherein: The first reflecting surface (31) and the second reflecting surface (32) are both parabolic surfaces; the second LED light source (2) is located at the focus of the second reflecting surface (32).

8. The reflector optical structure according to claim 1, wherein: The light concentrating element (5) is a convex lens.

9. A vehicle lamp, characterized in that: The reflector optical structure comprises the reflector optical structure according to any one of claims 1 to 8.

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