Title:
EXCITING LIGHT INTENSITY CONTROL SYSTEM AND METHOD, AND PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/205420
Kind Code:
A1
Abstract:
An exciting light intensity control system (1), comprising a lighting part, an imaging part and a control part. The lighting part comprises a light source (10); the imaging part comprises a light modulator (11) and a color conversion element (12); the exciting light emitted from the light source (10) is imported to the light modulator (11) for modulation; the modulated exciting light excites the color conversion element (12) to produce multicolor excited light; the lighting part further comprises a light recovery system (15) used for recoupling part of the exciting light emitted from the light modulator (11) to be incident to the light modulator (11); the control part comprises a controller (13) used for receiving original image data and controlling the intensity of the exciting light emitted from the light modulator (11) and/or the light source (10). The exciting light intensity control system (1) can improve the light utilization efficiency. Also provided is a projection system (2) applying the exciting light intensity control system (1).
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Inventors:
GUO ZUQIANG (CN)
HU FEI (CN)
LI YI (CN)
HU FEI (CN)
LI YI (CN)
Application Number:
PCT/CN2017/094802
Publication Date:
November 15, 2018
Filing Date:
July 28, 2017
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/20; G03B21/00; H04N9/31
Foreign References:
| JP2008299258A | 2008-12-11 | |||
| CN106444242A | 2017-02-22 | |||
| CN106353956A | 2017-01-25 | |||
| CN106162116A | 2016-11-23 | |||
| CN101702072A | 2010-05-05 | |||
| CN102279507A | 2011-12-14 | |||
| CN102023464A | 2011-04-20 |
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