Title:
LIGHT SOURCE BRIGHTNESS CONTROL SYSTEM, LIGHT SOURCE SYSTEM AND PROJECTION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2018/107682
Kind Code:
A1
Abstract:
Disclosed by the present utility model are a light source brightness control system, light source system and projection equipment, the light source brightness control system, applied to the light source system and the projection equipment, comprising an ambient light detection unit, a main control unit and a drive unit that are connected sequentially. The ambient light detection unit detects ambient light and transmits an ambient light signal to the main control unit, the ambient light signal being a digital signal; the main control unit generates an analog voltage control signal according to the ambient light signal and outputs the same to the drive unit; and the drive unit drives the light source unit to emit light according to the analog voltage control signal. The present utility model automatically adjusts a light-emitting state of the light source system according to a change in ambient light, thereby effectively using electric energy, which may respond to a nation-wide call for energy conservation and emission reduction, and which has very good practical value and great importance.
Inventors:
JIE YONG (CN)
PAN LE (CN)
LI YI (CN)
PAN LE (CN)
LI YI (CN)
Application Number:
PCT/CN2017/088623
Publication Date:
June 21, 2018
Filing Date:
June 16, 2017
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
H05B44/00; H05B37/02
Foreign References:
| CN103517528A | 2014-01-15 | |||
| CN103148398A | 2013-06-12 | |||
| CN102568407A | 2012-07-11 | |||
| CN201765803U | 2011-03-16 | |||
| JP5655265B2 | 2015-01-21 |
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