REFLECTIVE BOWL AND OPTICAL SYSTEM APPLIED TO COLOR PROJECTION LAMP - GUANGZHOU YAJIANG PHOTOELECTRIC EQUIPMENT CO LTD

Title:

REFLECTIVE BOWL AND OPTICAL SYSTEM APPLIED TO COLOR PROJECTION LAMP

Document Type and Number:

WIPO Patent Application WO/2020/006783

Kind Code:

A1

Abstract:

Disclosed are a reflective bowl and an optical system applied to a color projection lamp. The reflective bowl comprises a reflective bowl body (1), wherein the reflective bowl body (1) is provided with a large end and a small end; the small end of the reflective bowl body (1) is provided with a light source hole (2), and the large end of the reflective bowl body (1) is opened as a light outlet (3); and a cross-section of the reflective bowl body (1) is in the shape of a square, and an inner surface of the reflective bowl body (1) is a smooth mirror face. By configuring the reflective bowl body (1) to have a square cross-section, the light outlet (3) is also in the shape of a square, and reflected light rays, i.e. light rays that have been reflected by the reflective bowl body (1), can overlap with direct light rays from a light source, so as to realize uniform color mixture at a light surface. Furthermore, the inner surface of the reflective bowl body (1) being the smooth mirror face can guarantee a high optical efficiency. The optical system has a simple structure and a good effect during use, and is easily promoted and used.

Inventors:

HUANG RONGFENG (CN)
CHEN ZHIMAN (CN)
WANG GUOHAI (CN)
YU ZESONG (CN)

Application Number:

PCT/CN2018/096235

Publication Date:

January 09, 2020

Filing Date:

July 19, 2018

Export Citation:

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Assignee:

GUANGZHOU YAJIANG PHOTOELECTRIC EQUIPMENT CO LTD (CN)

International Classes:

F21V7/04; F21S8/00; F21V3/04; F21V17/16

Foreign References:

CN205581515U	2016-09-14
CN102537847A	2012-07-04
CN206449586U	2017-08-29
CN201355001Y	2009-12-02
CN201126152Y	2008-10-01
CN101520158A	2009-09-02
US20130250567A1	2013-09-26

Other References: