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car led light lens

A LED lamp lens and lens technology, which is applied in the direction of motor vehicles, road vehicles, vehicle parts, etc., can solve the problems of raising system costs, etc., and achieve the effects of improving light utilization, reducing costs, and uniformly distributing light in a large area

Active Publication Date: 2017-02-22
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method of densely distributing multiple LED light sources to obtain a uniform visual effect is not suitable for longer linear light sources. For example, for a linear light source up to 1m, more than 80 LED light sources are required, so many LED light sources , will greatly increase the cost of the system

Method used

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Examples

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Such as Figure 3~Figure 14 As shown, the described a kind of automobile LED light lens includes a lens body 6, the lens body is a hexahedron and the front and rear sides are symmetrical, and the left side and the right side are symmetrical. The left side of the lens body 6 is inclined from top to bottom to the right. The plane and the right are planes inclined from top to bottom to the left.

[0032] The middle part below the lens main body 6 is provided with a concave hemispherical light-transmitting surface 10, the spherical center of the hemispherical light-transmitting surface is used as the LED light source arrangement point, and the hemispherical light-transmitting surface is used to allow light to pass through without changing the light direction of propagation. On the said hemispherical light-transmitting surface 10, along the left-right direction of ...

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Abstract

The invention relates to an automobile LED lamp lens which comprises a lens body. The lens body is a hexahedron, the front face and the rear face of the lens body are symmetric, and the left face and the right face of the lens body are symmetric. The middle of the lower face of the lens body is provided with an inward-concave semispherical illuminating surface. The sphere center of the semispherical illuminating surface is used as an LED light source arrangement point. A spotlight surface protruding towards the sphere center is arranged on the semispherical illuminating surface in the left-right direction of the lens body. The middle of the front face and the middle of the rear face of the lens body are provided with symmetric fully reflecting surfaces. The fully reflecting surfaces are in a horn shape and are provided with the narrow tops and the wide bottoms. The upper face of the lens body is a light distribution face. The light distribution face is formed by connecting two upward-protruding arc faces in a smooth mode, and the horizontal projection is rectangular. According to the automobile LED lamp lens, the good uniform visual effect can be achieved, the linear effect better than the light guide technology or the LED lamp strip technology can be provided on the condition that a small number of LED light sources are adopted, installation is easy, and the cost is saved.

Description

technical field [0001] The invention relates to an LED lamp for automobiles, in particular to an automobile LED lamp lens. Background technique [0002] Automobile tail lights use light guides as position lights, which can realize linear light sources and obtain better visual effects. Such as figure 1 In the light linear light source shown, the LED light source 1 is located at one end of the light guide 2. After the light enters the light guide 2, it forms total reflection inside and travels forward to the other end of the light guide 2. In order to obtain a uniform visual effect, the light guide A sawtooth reflective surface is used to face away from the visual direction, but in the scheme of using light guides to achieve linear light source effects, the LED light utilization rate is only about 20%. To achieve the same light intensity, it is necessary to increase the LED power, which will lead to a single The power of LED is high, the heat dissipation design is difficult,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/10F21V5/04F21Y115/10F21W101/02F21W107/10
CPCF21S43/26F21W2107/10F21Y2101/00
Inventor 周霞万宏徐涛付强喻杰蔡渝东
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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