Title:
LIGHT DISTRIBUTION SYSTEM, AND LIGHT SOURCE MODULE AND LAMP COMPRISING LIGHT DISTRIBUTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/068824
Kind Code:
A1
Abstract:
A light distribution system, comprising a lens (1), wherein the lens (1) is a rotational symmetrical structure, the bottom part of the lens (1) is provided with a concave optical cavity (4) used for accommodating a light-emitting source (3), a light entry surface (101) is formed at the inner wall of the optical cavity (4), the upper surface of the top part of the lens (1) is a light exit surface (102), and side surfaces between the top part and the bottom part are internal reflection surfaces (103); and reflective pieces (21, 23), which are provided in the optical cavity (4). Light that does not enter the lens (1) from the light entry surface (101) but is reflected by the light entry surface (101) is reflected again so as to enter the light entry surface (101). By means of adding reflective pieces (21, 23) into the optical cavity (4) of the lens (1), light emitted by the light-emitting source (3) of the optical cavity is provided, a large portion of the light enters the lens (1) by means of the light entry surface and a small portion is reflected. The reflective pieces (21, 23) reflects said part of the reflected light back again to the original light path to eliminate the Fresnel effect and more efficiently use light energy. The system cooperates with conventional TIR lenses, eliminates negative light spots, and achieves a degree of concentration.
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Inventors:
HUANG JUNHUI (CN)
ZHENG LEI (CN)
XUE YONG (CN)
ZHENG LEI (CN)
XUE YONG (CN)
Application Number:
PCT/CN2020/119236
Publication Date:
April 15, 2021
Filing Date:
September 30, 2020
Export Citation:
Assignee:
SUZHOU OPPLE LIGHTING CO LTD (CN)
OPPLE LIGHTING CO LTD (CN)
OPPLE LIGHTING CO LTD (CN)
International Classes:
F21K9/20; F21V5/04; F21V7/10; F21V7/22; F21V13/04; F21Y115/10
Foreign References:
| CN110566828A | 2019-12-13 | |||
| CN209325690U | 2019-08-30 | |||
| CN107131433A | 2017-09-05 | |||
| US20150029728A1 | 2015-01-29 | |||
| CN106051622A | 2016-10-26 | |||
| CN108224110A | 2018-06-29 | |||
| CN104132305A | 2014-11-05 |
Attorney, Agent or Firm:
COHORIZON INTELLECTUAL PROPERTY INC. (CN)
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