Invention Grant
- Patent Title: Reduced rainbow artifacts in digital light projection systems
- Patent Title (中): 减少数字光投影系统中的彩虹伪影
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Application No.: US11793295Application Date: 2005-01-06
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Publication No.: US08358384B2Publication Date: 2013-01-22
- Inventor: David Jay Duffield
- Applicant: David Jay Duffield
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne-Billancourt
- Agent Robert D. Shedd; Vincent E. Duffy; James McKenzie
- International Application: PCT/US2005/000195 WO 20050106
- International Announcement: WO2006/073397 WO 20060713
- Main IPC: H04N5/64
- IPC: H04N5/64 ; G03B21/14

Abstract:
A projection system can include a color wheel and at least one digital micromirror device. The color wheel can produce different colors of light from a light source. Each color can be produced in sequential order for a predetermined color phase. Each of the digital micromirror device(s) can have a plurality of micromirrors. At least one of the plurality of micromirrors can be activated at different respective portions of each of two consecutive color phases responsive to a control signal. The projection system also can include a lens configured to project light reflected from the at least one digital micromirror device onto a projection surface.
Public/Granted literature
- US20080136978A1 Reduced Rainbow Artifacts in Digital Light Projection Systems Public/Granted day:2008-06-12
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