Invention Grant
- Patent Title: Projection systems and methods using widely-spaced projectors
- Patent Title (中): 投影系统和方法使用广泛的投影机
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Application No.: US14123951Application Date: 2012-06-07
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Publication No.: US09335614B2Publication Date: 2016-05-10
- Inventor: Martin J. Richards
- Applicant: Martin J. Richards
- Applicant Address: US CA San Francisco
- Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee Address: US CA San Francisco
- Agency: Henneman & Associates, PLC
- Agent Larry E. Henneman, Jr.
- International Application: PCT/US2012/041230 WO 20120607
- International Announcement: WO2012/173851 WO 20121220
- Main IPC: G03B21/14
- IPC: G03B21/14 ; G03B35/20 ; G03B21/26 ; G03B37/04 ; H04N9/31 ; H04N13/04

Abstract:
A theater utilizes multiple projectors that are widely spaced. The wide spacing of the projectors reduces hot spotting that occurs on flat, curved, retro-reflective, and other types of screens. The projectors are spaced widely apart and generally are placed at opposite sides of the theater. The wide spacing causes a trapezoidal distortion or effect which may be electronically compensated for by, for example, changing pixel locations on modulators of the projectors such that same (or corresponding) pixels modulated in both projectors are ultimately projected onto a same pixel area of the screen. The invention is particularly advantageous in polarization based 3D systems which generally require high directivity screens where hot spotting and related crosstalk are common.
Public/Granted literature
- US20140204186A1 HIGH DIRECTIVITY SCREENS Public/Granted day:2014-07-24
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