CN220749920U - Car light optical system and car light that light guide realized large tracts of land was lighted - Google Patents

Abstract

The utility model provides a car light optical system and car light that light guide realizes the large tracts of land and lights, including: a light source, a light guide, a reflective surface, and a diffusing endoscope; the light guide is provided with a light guide light incoming surface, light guide optical teeth and a light guide light outgoing surface, and the light source is arranged corresponding to the light guide light incoming surface; the light guide is arranged corresponding to the reflecting surface, and the diffusion internal matched mirror is arranged on the reflecting surface; light rays emitted by the light source enter the light guide through refraction of the light guide light incoming surface, the light rays are irradiated onto the light guide optical teeth after multiple total reflections occur on the side wall of the light guide, the total reflection angle of the light rays is changed through the light guide optical teeth, the light rays are irradiated onto the light guide light outgoing surface, are emitted into an air medium through the light guide light outgoing surface, then reach the reflecting surface, are reflected to the diffusion inner matched mirror through the reflecting surface, and are diffused and emitted through the diffusion inner matched mirror. The utility model uses the light guide as a strip light-emitting structure, replaces a plurality of LEDs to light, and solves the problems of overlarge electronic PCB and high cost of electronic devices.

Description

Car light optical system and car light that light guide realized large tracts of land was lighted

Technical Field

The utility model relates to the technical field of automobile lamps, in particular to an automobile lamp optical system capable of achieving large-area lighting through a light guide and an automobile lamp.

Background

When the prior art utilizes the reflecting surface to realize large-area lighting, a plurality of LED light sources are often required to be lighted, when the lighting area is very large, the number of LEDs can be very large, the cost of an electronic device can be obviously improved, meanwhile, a side wall is arranged between each reflecting bowl, and the lighting uniformity can be obviously influenced when the reflecting bowl is seen at a large angle.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a car lamp optical system and a car lamp for realizing large-area lighting by using a light guide.

The utility model provides a car light optical system for realizing large-area lighting by a light guide, which comprises: a light source, a light guide, a reflective surface, and a diffusing endoscope;

the light guide is provided with a light guide light-in surface, light guide optical teeth and a light guide light-out surface, and the light source is arranged corresponding to the light guide light-in surface; the light guide is arranged corresponding to the reflecting surface, and the diffusion internal matched mirror is arranged on the reflecting surface;

light rays emitted by the light source enter the light guide through refraction of the light guide light incoming surface, are irradiated onto the light guide optical teeth after multiple total reflections occur on the side wall of the light guide, the total reflection angle of the light rays is changed through the light guide optical teeth, the light rays are irradiated onto the light guide light outgoing surface, are emitted into an air medium through the light guide light outgoing surface, then reach the reflecting surface, are reflected to the diffusion inner matched mirror through the reflecting surface, and are diffused and emitted through the diffusion inner matched mirror.

Preferably, the base surface of the reflecting surface is a surface of a paraboloid extending along the center line of the light guide.

Preferably, the reflecting surface is provided with a diffusion pattern.

Preferably, the reflecting surface is any one of the following: an aluminized reflecting surface with optical patterns, an aluminized reflecting surface with frosted skin patterns, a reflecting surface made of white diffuse reflecting materials with optical patterns and a reflecting surface made of smooth white diffuse reflecting materials.

Preferably, the diffusion endoscope is any one of the following: a lens made of transparent material, a lens with frosted leather lines on the inner side surface or the inner side surface and the outer side surface, and a lens made of emulsifying diffusion material.

Preferably, the LED lamp further comprises a mounting plate, and the light source is arranged on the mounting plate.

Preferably, the mounting board is a PCB board, and the light source is an LED light source.

Preferably, the light emitting surface of the light guide is an arc surface.

Preferably, the light guide is elongate.

The utility model also provides a car lamp, which comprises the car lamp optical system for realizing large-area lighting by the light guide.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model uses the light guide as a strip light source to lighten the reflecting surface with large area, and then lightens the internal matched mirror with large area, thereby realizing the effect of lightening with large area;

2. the utility model uses the light guide as a strip light-emitting structure, replaces a plurality of LEDs to light, solves the problems of overlarge electronic PCB and high cost of electronic devices, and achieves the effect of saving cost;

3. the utility model uses the whole large reflecting surface structure to replace the reflecting surface formed by a plurality of small paraboloids, solves the problem of the dark area of the side wall between the small paraboloids, and achieves the effect of uniformly lighting the whole light-emitting surface at a plurality of angles.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a partial front view of an optical system in which a light guide achieves large area illumination;

FIG. 2 is a schematic diagram of the light path of the light output from the light guide;

FIG. 3 is a schematic diagram of the overall light path of an optical system in which a light guide achieves large area illumination;

FIG. 4 is a front view of an optical system in which a light guide achieves large area illumination;

FIG. 5 is a front view II of an optical system in which a light guide achieves large area illumination;

FIG. 6 is a perspective view of an optical system in which a light guide achieves large area illumination;

FIG. 7 is a second perspective view of an optical system in which a light guide achieves large area illumination;

FIG. 8 is a third perspective view of an optical system in which a light guide achieves large area illumination;

FIG. 9 is a perspective view of an optical system in which a light guide achieves large area illumination;

FIG. 10 is a front view of an optical system for achieving large area illumination of a light guide without a diffusing endoscope;

FIG. 11 is a front view II of an optical system for achieving large area illumination of a light guide without a diffusing endoscope;

FIG. 12 is a perspective view of an optical system for achieving large area illumination of a light guide without a diffusing endoscope;

FIG. 13 is a second perspective view of an optical system for achieving large area illumination of a light guide without a diffusing endoscope;

FIG. 14 is a third perspective view of an optical system for achieving large area illumination of a light guide without a diffusing endoscope;

FIG. 15 is a perspective view of an optical system for achieving large area illumination of a light guide without a diffusing endoscope;

FIG. 16 is a front view highlighting a reflective surface;

FIG. 17 is a perspective view showing the reflective surface in a highlighted position;

fig. 18 is a second perspective view highlighting the reflective surface.

The figure shows:

mounting plate 1 light guide optical teeth 302

Light source 2 light-guiding light-emitting surface 303

Reflecting surface 4 of light guide 3

Light-guiding surface 301 diffusion endoscope 5

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

Example 1:

as shown in fig. 1 to 18, the present embodiment provides a lamp optical system in which a light guide is lighted over a large area, comprising: the light source 2, the light guide 3, the reflecting surface 4 and the diffusion endoscope 5, wherein the light guide 3 is provided with a light guide light-in surface 301, a light guide optical tooth 302 and a light guide light-out surface 303, and the light source 2 is arranged corresponding to the light guide light-in surface 301; the light guide 3 is provided corresponding to the reflection surface 4, and the diffusing endoscope 5 is provided on the reflection surface 4. Light rays emitted by the light source 2 are refracted through the light guide light-in surface 301 and enter the light guide 3, are irradiated onto the light guide optical teeth 302 after being subjected to multiple total reflections on the side wall of the light guide 3, the total reflection angle of the light rays is changed through the light guide optical teeth 302, the light rays are irradiated onto the light guide light-out surface 303, are emitted into an air medium through the light guide light-out surface 303, then reach the reflecting surface 4, are reflected to the diffusion internal matching mirror 5 through the reflecting surface 4, and are diffused and emitted through the diffusion internal matching mirror 5. The light guide 3 is elongate. The light guiding-out surface 303 is an arc surface.

The lamp optical system for realizing large-area lighting of the light guide of the present embodiment further includes a mounting plate 1, and a light source 2 is provided on the mounting plate 1. The mounting plate 1 is a PCB board, and the light source 2 is an LED light source.

The reflecting surface 4 is any one of the following: an aluminized reflecting surface with optical patterns, an aluminized reflecting surface with frosted skin patterns, a reflecting surface made of white diffuse reflecting materials with optical patterns and a reflecting surface made of smooth white diffuse reflecting materials.

The base surface of the reflecting surface 4 is a surface of a paraboloid extending along the centre line of the light guide 3. The reflecting surface 4 is provided with a diffusion pattern.

The diffusion endoscope 5 is any one of the following: a lens made of transparent material, a lens with frosted leather lines on the inner side surface or the inner side surface and the outer side surface, and a lens made of emulsifying diffusion material.

The embodiment also provides a car lamp, which comprises the car lamp optical system for realizing large-area lighting by the light guide.

Example 2:

the present embodiment will be understood by those skilled in the art as a more specific description of embodiment 1.

As shown in fig. 1, a schematic diagram of a partial structure of a lamp optical system for realizing large-area lighting of a light guide according to the present embodiment includes a mounting plate 1, a light source 2, a light guide 3, a reflecting surface 4, and a diffusing lens 5. The mounting plate 1 is a PCB board, and the light source 2 is an LED light source. The light source 2 is fixedly arranged on the mounting plate 1.

Light rays emitted by the light source 2 are refracted through the light guide-in surface 31 and enter the light guide, multiple total reflections occur on the side wall of the light guide and then irradiate on the light guide optical teeth 32, the total reflection angle of the light rays is changed by the light guide optical teeth 32, the light rays irradiate on the light guide-out surface 33, then the light rays are refracted and enter an air medium, and the light path diagram of the whole light guide-out light is shown in fig. 2.

The light emitted from the light emitting surface 33 irradiates the reflecting surface 4 to be reflected, the reflecting surface 4 is provided with diffusion patterns, the light is diffused while being reflected, the diffused light propagates towards the direction of the diffusion inner lens 5, and after the light propagates to the diffusion inner lens 5, the light is further diffused and emitted to the air, and the whole diffusion inner lens is lightened. The schematic diagram of the light path of the whole light is shown in fig. 3.

The base surface of the reflecting surface 4 is a large surface pulled out by paraboloids along the central line of the light guide, and the reflecting surface 4 can be an aluminized reflecting surface with optical patterns, an aluminized reflecting surface with frosted grains, a reflecting surface made of white diffuse reflecting materials with optical patterns, or a reflecting surface made of smooth white diffuse reflecting materials.

The diffusion endoscope can be made of transparent materials, and the inner side surface or the inner side surface and the outer side surface are provided with frosted leather lines, or can be made of emulsified diffusion materials.

The utility model uses the light guide as a strip light-emitting structure, replaces a plurality of LEDs to light, and solves the problems of overlarge electronic PCB and high cost of electronic devices.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims (10)

1. A lamp optical system for realizing large-area lighting of a light guide, comprising: a light source (2), a light guide (3), a reflecting surface (4) and a diffusion internal mirror (5);

the light guide (3) is provided with a light guide light-in surface (301), light guide optical teeth (302) and a light guide light-out surface (303), and the light source (2) is arranged corresponding to the light guide light-in surface (301); the light guide (3) is arranged corresponding to the reflecting surface (4), and the diffusion internal matched mirror (5) is arranged on the reflecting surface (4);

light emitted by the light source (2) is refracted through the light guide-in surface (301) and enters the light guide (3), the light irradiates the light guide optical teeth (302) after multiple total reflections occur on the side wall of the light guide (3), the total reflection angle of the light is changed through the light guide optical teeth (302), the light irradiates the light guide-out surface (303), enters an air medium through the light guide-out surface (303), then reaches the reflecting surface (4), is reflected to the diffusion internal matching mirror (5) through the reflecting surface (4), and is diffused and emitted through the diffusion internal matching mirror (5).

2. A light guide for a vehicle lamp optical system for achieving a large area ignition according to claim 1, characterized in that the base surface of the reflecting surface (4) is a surface of a paraboloid extending along the center line of the light guide (3).

3. A lamp optical system for realizing large area lighting by light guide according to claim 2, characterized in that the reflecting surface (4) is provided with a diffusing pattern.

4. The lamp optical system for realizing large area lighting of a light guide according to claim 1, wherein the reflecting surface (4) is any one of the following: an aluminized reflecting surface with optical patterns, an aluminized reflecting surface with frosted skin patterns, a reflecting surface made of white diffuse reflecting materials with optical patterns and a reflecting surface made of smooth white diffuse reflecting materials.

5. The lamp optical system for realizing large area lighting by the light guide according to claim 1, wherein the diffusing lens (5) is any one of the following: a lens made of transparent material, a lens with frosted leather lines on the inner side surface or the inner side surface and the outer side surface, and a lens made of emulsifying diffusion material.

6. The vehicle lamp optical system for realizing large area lighting of a light guide according to claim 1, further comprising a mounting plate (1), said light source (2) being provided on said mounting plate (1).

7. The light guide large area lighting lamp optical system according to claim 6, characterized in that the mounting board (1) is a PCB board and the light source (2) is an LED light source.

8. The lamp optical system for realizing large-area lighting by using the light guide according to claim 1, wherein the light-emitting surface (303) is an arc surface.

9. A lamp optical system for realizing large area lighting by a light guide according to claim 1, characterized in that the light guide (3) is elongated.

10. A vehicle lamp comprising the light guide of any one of claims 1 to 9 to realize a large-area lighting of a vehicle lamp optical system.