Invention Grant
US08172399B2 Lumen optimized stereo projector using a plurality of polarizing filters
失效
使用多个偏振滤光片的流明优化的立体投影仪
- Patent Title: Lumen optimized stereo projector using a plurality of polarizing filters
- Patent Title (中): 使用多个偏振滤光片的流明优化的立体投影仪
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Application No.: US11314327Application Date: 2005-12-21
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Publication No.: US08172399B2Publication Date: 2012-05-08
- Inventor: Casimer M. DeCusatis , Timothy M. Trifilo
- Applicant: Casimer M. DeCusatis , Timothy M. Trifilo
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Steven Chiu
- Main IPC: G03B21/00
- IPC: G03B21/00 ; G03B21/14 ; G02B27/22 ; H04N9/12 ; H04N9/47
Abstract:
A stereo 3D projector with the ability to provide the native lumen output of the projector when not in 3D mode. This is accomplished by using two rotating polarizing filters at least partially overlapping, each with at least two or more segments, some of which are fully transparent and at least some of which are polarized linearly or circularly.
Public/Granted literature
- US20070139617A1 Lumen optimized stereo projector using a plurality of polarizing filters Public/Granted day:2007-06-21
Information query
