LED total reflection lens, LED light guiding body and automobile lamp

A technology of LED light source and total reflection, which is applied in the direction of headlights, semiconductor devices of light-emitting elements, light sources, etc., can solve the problems of small number of LED light sources, poor light uniformity of light guide, low energy utilization rate, etc., and achieve uniform linearity Visual effects, reasonable main structure, and high energy utilization
CN107740995AInactive Publication Date: 2018-02-27HASCO VISION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HASCO VISION TECHNOLOGY CO LTD
Publication Date
2018-02-27
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to an LED total reflection lens, an LED light guiding body and an automobile lamp. The LED total reflection lens is of an integrated type polyhedron structure; the main structureis a cuboid, and is provided with a light incoming face, a light outgoing face, a conical total-reflection face, a combined total-reflection face, a chamfered total-reflection face and an air lens; the air lens is of an integrated and up-down through structure; the air lens is divided into an upper refraction face and a lower refraction face; the lower refraction face is a curved face or a plane;the middle portion of the upper refraction face is a plane or a curved face; tooth-shaped structure uniformly distributed on the two sides of the middle portion are on the two sides of the upper refraction face; the tooth-shaped structures are total-reflection teeth; and the tooth face of the total-reflection teeth is a total-reflection face. The LED total reflection lens is arranged into the polyhedron structure, by means of changes of different face types, light ray is collected and then is allocated, a uniform visual effect can be achieved, the energy utilizing rate is high, the using number of LED light sources is small, and the problems that an existing light guide is poor in light allocating uniformity, and the energy utilizing rate is low are solved.
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Description

technical field

[0001] The invention relates to the technical field of LED vehicle lamps, in particular to an LED total reflection lens, an LED light guide body and a vehicle lamp. Background technique

[0002] LEDs have long lifespan, low energy consumption and increasingly mature production technology, which can be mass-produced and supplied. Currently, they are widely used in automotive lighting and decoration, road lighting, projectors, and indoor and outdoor lighting decoration. Since the luminous characteristics of most conventional LEDs are symmetrical Lambertian radiation, they cannot meet the optical requirements of various occasions. In order to meet the light efficiency and light distribution requirements of various occasions and improve the performance of the system, it is necessary to carry out a secondary optical design for the LED to accurately control the light distribution, and to reasonably distribute the light energy emitted by the LED chip.

[0003] For ...

Claims

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