CN202392689U - Car lamp light distribution mirror capable of uniformly emitting light - Google Patents

Abstract

Disclosed is a light distribution mirror for car lights with uniform light output, which is used to prevent car lights from being dazzled and improve driving safety. The technical solution is that the light distribution mirror is composed of an inner light distribution mask and an outer light distribution mask that are sequentially covered outside the light source, the inner light distribution mask is a Fresnel lens, and the inner surface of the outer light distribution mask has a There are refraction stripes. The utility model refracts the light three times by using the patterns on the sides of the inner light distribution cover and the outer distribution light cover, so that the signal light can achieve the light output effect of the surface light source. Compared with the traditional car light distribution mirror, the utility model is simple in structure and low in cost. It not only has beautiful appearance, soft light, no glare, improves visual comfort, but also makes the lamp more eye-catching after lighting, which can effectively avoid traffic accidents. Accidents happen.

Description

A light distribution mirror for car lights with uniform light emission

technical field

The utility model relates to a light distribution mirror for vehicle lights, in particular to a light distribution mirror suitable for the external signal lights of automobile bodies, which belongs to the technical field of automobiles.

Background technique

Signal lights outside the body (including reversing lights, turn lights, brake lights, width indicator lights, etc.) are important signal devices for cars, and their luminous effects directly affect the safety of driving. In order to make the light output uniform and soft, the traditional car signal lights are equipped with optical refraction patterns on the reflective surface and the light distribution mirror. The purpose is to change the propagation path of light through refraction, thereby improving the visual effect of the lamp. However, the visual effect of this kind of signal light is not ideal. When the light is shining, it still looks like a bright spot, similar to a point light source, and cannot obtain a uniform and soft light effect. When the light of this light source enters the eyes of other drivers, It is easy to cause glare and affect driving safety.

Light guide technology can be used to make car signal lamps that emit light in a plane, but this kind of lamps is difficult to process and expensive, and it is still difficult to be accepted by people.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a light distribution mirror for vehicle lamps with simple structure, low cost and uniform light emission.

Problem described in the utility model is realized by the following technical solutions:

A light distribution mirror for vehicle lights with uniform light output, which is composed of an inner light distribution cover and an outer light distribution cover sequentially covering the outside of the light source, the inner light distribution cover is a Fresnel lens, and the inner surface of the outer light distribution cover With refraction stripes.

In the light distribution mirror for vehicle lights with uniform light emission, the inner surface of the inner light distribution cover is provided with a Fresnel lens pattern, and the outer surface is provided with a convex spherical pattern.

In the light-distributing mirror for vehicle lights with uniform light output, the refraction stripes arranged on the inner side of the outer light distribution cover are straight stripes, and the outer side is a smooth surface.

The utility model uses the Fresnel lens pattern on the inner surface of the inner light distribution cover to refract the light emitted by the light source into parallel light, uses the spherical surface pattern on the outer surface of the inner light distribution cover to refract the parallel light twice, makes the light diverge, and finally passes through the The straight stripe pattern on the inner surface of the external light cover refracts the light for the third time, so that the signal light can achieve the light output effect of the surface light source.

Compared with the traditional car light distribution mirror, the utility model has simple structure and low cost. It not only has beautiful shape, soft light, no glare, improves visual comfort, but also makes the lamp more eye-catching after lighting, which can effectively avoid traffic accidents. Accidents happen.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the shape of the Fresnel lens pattern on the inner surface of the inner distribution mask;

Fig. 3 is the shape of the spherical pattern on the outer surface of the inner distribution mask;

Fig. 4 is the shape of the straight stripe pattern on the inner surface of the external light distribution mask.

The labels in the figure are: 1, external mask; 2, internal mask; 3, light source.

Detailed ways

Referring to Fig. 1, the utility model is composed of an external distribution mask 1 and an internal distribution mask 2, the inner surface of the external distribution mask 1 has refraction stripes; the internal distribution mask 2 is a Fresnel lens distribution mask. There are several groups of Fresnel lens patterns on the inner surface of the Fresnel lens light distribution cover, and several groups of convex spherical patterns on the outer surface of the mirror surface; the refraction stripes set on the inner surface of the external distribution light mask are straight stripe patterns , the outer surface is smooth.

The light output principle of the utility model: the Fresnel lens pattern collects the light emitted by the light source and refracts it into parallel light. Light effect.

It can be seen from Figure 1 that the light emitted by the light source 3 becomes scattered light after being refracted by two layers of light distribution covers. Effect.

The car light using the light distribution mirror can obtain uniform light output effect, the whole light has a beautiful appearance, is more eye-catching compared to vehicles and pedestrians after being lit, has soft light output, no glare, improves visual comfort, and avoids traffic accidents.

The utility model has the advantages of simple structure, easy engineering mass production and low cost.

Claims (3)

1. A photodistribution mirror for vehicle lights with uniform light output, characterized in that the photodistribution mirror is composed of an inner photodistribution cover (2) and an outer photodistribution cover (1) which are sequentially covered outside the light source (3). The internal photomask (2) is a Fresnel lens, and the inner surface of the external photomask (1) has refraction stripes. 2. The photodistribution mirror for vehicle lights with uniform light output according to claim 1, characterized in that Fresnel lens patterns are arranged on the inner surface of the inner light distribution cover (2), and protrusions are arranged on the outer surface spherical pattern. 3 . The photodistribution mirror for vehicle lights with uniform light output according to claim 1 , wherein the refraction stripes provided on the inner side of the outer light distribution mask are straight stripes, and the outer side is a smooth surface. 4 .

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