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Title:
LED TOTAL REFLECTION LENS, LED LIGHT GUIDE BODY, AND AUTOMOBILE LAMP
Document Type and Number:
WIPO Patent Application WO/2019/080634
Kind Code:
A1
Abstract:
An LED total reflection lens, an LED light guide body, and an automobile lamp. The LED total reflection lens is of an integrated polyhedron structure; the main structure is a cuboid, and is provided with a light-entry surface (2), a light-exit surface (8), a conical total-reflection surface (3), a combined total-reflection surface (4), a chamfered total-reflection surface (7-1, 7-2), and an air lens. The air lens is of an integrated up-down through structure. The air lens is divided into an upper refraction surface (5-2) and a lower refraction surface (5-1). The lower refraction surface (5-1) is a curved surface or a plane. The middle portion of the upper refraction surface (5-2) is a plane or a curved surface; tooth-shaped structures uniformly distributed on the two sides of the middle portion are located on the two sides of the upper refraction surface (5-2), and the tooth-shaped structures are total-reflection teeth (6-1~6-4); and the tooth surfaces of the total-reflection teeth (6-1~6-4) are total-reflection surfaces. The LED total reflection lens is set as a polyhedron structure; by means of changes of different surface types, light rays are collected and then are allocated, a uniform visual effect can be achieved, the energy utilization rate is high, the number of LED light sources used is small, and the problems of poor light allocation uniformity of the existing lightguide and the low energy utilization rate are resolved.

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Inventors:
NIU LEI (CN)
Application Number:
PCT/CN2018/102722
Publication Date:
May 02, 2019
Filing Date:
August 28, 2018
Export Citation:
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Assignee:
HASCO VISION TECH CO LTD (CN)
International Classes:
F21V5/04; F21V8/00
Foreign References:
CN107740995A2018-02-27
CN106594675A2017-04-26
CN205807008U2016-12-14
CN206330086U2017-07-14
CN106764791A2017-05-31
CN107975693A2018-05-01
US20120188774A12012-07-26
Attorney, Agent or Firm:
SANHE INTERNATIONAL IP ATTORNEYS (GP) (CN)
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