Invention Grant
US08031403B2 System and method for reducing visible speckle in a projection visual display system
有权
用于减少投影视觉显示系统中可见斑点的系统和方法
- Patent Title: System and method for reducing visible speckle in a projection visual display system
- Patent Title (中): 用于减少投影视觉显示系统中可见斑点的系统和方法
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Application No.: US11948881Application Date: 2007-11-30
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Publication No.: US08031403B2Publication Date: 2011-10-04
- Inventor: James C. Dunphy , Stephen W. Marshall
- Applicant: James C. Dunphy , Stephen W. Marshall
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Charles A. Brill; Wade James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: G02B5/02
- IPC: G02B5/02 ; G02B26/00 ; G02B26/08 ; G03H1/02 ; G03B21/14 ; H01J3/14
Abstract:
The invention provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a lissajous curve at least partially transverse to the optical path.
Public/Granted literature
- US20090009871A1 SYSTEM AND METHOD FOR REDUCING VISIBLE SPECKLE IN A PROJECTION VISUAL DISPLAY SYSTEM Public/Granted day:2009-01-08
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