Light guide lens and vehicle head lamp

A vehicle and lens technology, applied in the field of light guide elements, can solve the problems of unreduced manufacturing cost, light loss, high manufacturing cost, etc.

Pending Publication Date: 2020-07-07
YANGZHOU LEDLINK OPTICS +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The reflective surface of the light guide element in the prior art is formed by electroplating a reflective layer, which will increase the complexity of making the light guide element, resulting in higher manufacturing costs
[0005] In addition, the reflective surface of the light guide element in the prior art has only a single curvature in any section, and the curvature must be extended upwards to a certain height in order to receive most of the light from the LED in the corresponding section, which causes The light-guiding element must have a corresponding thickness, resulting in an inability to reduce manufacturing costs
[0006] In addition, the reflective surface formed by the electroplating reflective layer is a metal reflective surface, which will absorb part of the light emitted by the LED, resulting in light loss

Method used

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  • Light guide lens and vehicle head lamp
  • Light guide lens and vehicle head lamp
  • Light guide lens and vehicle head lamp

Examples

Experimental program
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Effect test

Embodiment Construction

[0035] Figure 1A It is a schematic diagram of a light guide lens according to an embodiment of the present invention, Figure 1B for Figure 1A A schematic cross-sectional view through the first side and the second side parallel to the XY plane, for example through Figure 1A A schematic cross-sectional view of points A, B, and C in . Please refer to Figure 1A and Figure 1B , the light guide lens 100 of this embodiment is suitable for vehicle headlights (not shown) to guide the light provided by the light emitting element (not shown), the light guide lens 100 has a bottom surface 110, a light exit surface 120, a first reflective surface 130 and reflective structure 140. The bottom surface 110 has a first side 111 and a second side 112 opposite to each other, and a light incident portion 113 located between the first side 111 and the second side 112. The light emitting surface 120 is connected to the first side 111 . The first reflective surface 130 is part of the bottom ...

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PUM

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Abstract

The invention discloses a light guide lens, and the lens is provided with a bottom surface, a light emitting surface, a first reflecting surface and a reflecting structure. The bottom surface is provided with a first side edge and a second side edge which are opposite to each other, and a light incident part. The light emitting surface is connected to the first side edge. The first reflecting surface is opposite to a part of the bottom surface and is connected to the light emitting surface, and the light incident part is located in a projection area of vertical projection of the first reflecting surface to the bottom surface. The reflection structure comprises a plurality of reflection surfaces connected between the second side edge and the first reflection surface. The invention also provides a vehicle head lamp comprising the light guide lens.

Description

technical field [0001] The invention relates to a light guide element, in particular to a light guide lens for guiding the light emitted by a light-emitting element of a headlight and a vehicle headlight with the light guide lens. Background technique [0002] In recent years, headlights of vehicles have gradually adopted light-emitting diodes as light sources. [0003] When applied to the headlights of vehicles, LEDs must be matched with appropriate light guide elements to make the headlights emit the required light shape and angle. The light-emitting diodes can be arranged outside a surface of the light-guiding element, and the light-guiding element further has a reflective surface for reflecting the light emitted by the light-emitting diodes and a light-emitting surface for emitting the light reflected by the reflective surface. [0004] The reflective surface of the light guide element in the prior art is formed by electroplating a reflective layer, which will increase ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S41/20F21V5/04F21W102/10F21W107/10
CPCF21S41/20F21V5/04F21W2102/10F21W2107/10
Inventor 唐德龙郑伊凯
Owner YANGZHOU LEDLINK OPTICS
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