Invention Grant
- Patent Title: Transmitting-reflecting projection screen, and projection system comprising the same
- Patent Title (中): 发射反射投影屏幕和包括其的投影系统
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Application No.: US11333257Application Date: 2006-01-18
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Publication No.: US07719762B2Publication Date: 2010-05-18
- Inventor: Tomoko Kumasawa , Masanori Umeya , Masachika Watanabe , Tsuyoshi Yamauchi
- Applicant: Tomoko Kumasawa , Masanori Umeya , Masachika Watanabe , Tsuyoshi Yamauchi
- Applicant Address: JP Tokyo
- Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2005-014375 20050121; JP2005-334257 20051118
- Main IPC: G03B21/56
- IPC: G03B21/56
Abstract:
The present invention provides a see-through transmitting-reflecting projection screen excellent in transparency, capable of sharply displaying, on its both sides, identical or different images even under bright environmental light.A transmitting-reflecting projection screen 10 comprises a reflection-type screen 11 and a transmission-type screen 12. The reflection-type screen 11 reflects a specific polarized component of imaging light projected. The reflection-type screen 11 does not reflect a polarized component, different from the specific polarized component, of the imaging light, and this polarized component passes through the reflection-type screen 11 and the transmission-type screen 12.
Public/Granted literature
- US20060181769A1 Transmitting-reflecting projection screen, and projection system comprising the same Public/Granted day:2006-08-17
Information query
