Title:
ULTRA-SMALL FILTERING MODULE AND STAGE LAMP HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2022/236966
Kind Code:
A1
Abstract:
An ultra-small filtering module and a stage lamp having same, the ultra-small filtering module comprising an optical filter (100) and a first guide rod (230), wherein one side edge of the optical filter (100) is connected to a first sliding block (200), and the first sliding block (200) is slidably arranged on the first guide rod (230); in the process of the optical filter (100) sliding along the first guide rod (230), all areas of the optical filter (100) that intercept a light path are used as an effective filtering region (110); and the position where the optical filter (100) is connected to the first sliding block (200) is a first mounting region (120), the first mounting region (120) being located outside the effective filtering region (110) and within an area defined by a tangent line of the effective filtering region (110) in the lengthwise direction of the first guide rod (230). Since a light source is approximately circular, one end of all the effective filtering regions (110) close to the first sliding block (200) is generally arc shaped, and the first mounting region (120) is arranged outside the effective filtering region (110) and within the area defined by the tangent line in the lengthwise direction of the first guide rod (230), such that the optical filter (100) does not need to extend and form a fixing portion, thereby reducing the width of the ultra-small filtering module in a direction perpendicular to the first guide rod (230).
Inventors:
JIANG WEIKAI (CN)
Application Number:
PCT/CN2021/108667
Publication Date:
November 17, 2022
Filing Date:
July 27, 2021
Export Citation:
Assignee:
GUANGZHOU HAOYANG ELECTRONICS CO LTD (CN)
International Classes:
F21S8/00; F21V9/00; F21V17/10; F21W131/105; F21W131/406
Foreign References:
| CN203549693U | 2014-04-16 | |||
| CN104048266A | 2014-09-17 | |||
| CN212339169U | 2021-01-12 | |||
| CN201344458Y | 2009-11-11 | |||
| US20140327961A1 | 2014-11-06 |
Attorney, Agent or Firm:
GUANGZHOU RUNHE INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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