Title:
PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/206614
Kind Code:
A1
Abstract:
A projection system (100), comprising: a light source (10), a spatial light modulator (40), a light recycling system (30, 60, 70), and a lens assembly (50). The light source (10) is used to emit source light toward the spatial light modulator (40). The spatial light modulator (40) is used to modulate, according to an image signal, light incident on the spatial light modulator (40), so as to form projection light and non-projection light. The light recycling system (30, 60, 70) is used to receive at least a portion of the non-projection light, and guide the at least a portion of the non-projection light toward the spatial light modulator (40). The lens assembly (50) is used to receive and emit the projection light to form a projection image. The projection system (100) of the present invention enables efficient use of non-projection light.
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Inventors:
LI YI (CN)
HU FEI (CN)
GUO ZUQIANG (CN)
HU FEI (CN)
GUO ZUQIANG (CN)
Application Number:
PCT/CN2017/081161
Publication Date:
December 07, 2017
Filing Date:
April 19, 2017
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/00
Foreign References:
CN105573033A | 2016-05-11 | |||
CN103676426A | 2014-03-26 | |||
JP2004309786A | 2004-11-04 | |||
JP2007072031A | 2007-03-22 |
Other References:
See also references of EP 3467583A4
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