Invention Application
WO2010134949A3 OPTICAL PROJECTION SYSTEM WITH SLOW RELAY AND FAST PROJECTION SUBSYSTEMS
审中-公开
具有慢速继电器和快速投影功能的光学投影系统
- Patent Title: OPTICAL PROJECTION SYSTEM WITH SLOW RELAY AND FAST PROJECTION SUBSYSTEMS
- Patent Title (中): 具有慢速继电器和快速投影功能的光学投影系统
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Application No.: PCT/US2010001325Application Date: 2010-05-05
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Publication No.: WO2010134949A3Publication Date: 2011-03-03
- Inventor: SILVERSTEIN BARRY D , BIETRY JOSEPH RAYMOND , NOTHHARD GARY EDWIN , METZGER ROBERT , KURTZ ANDREW F
- Applicant: EASTMAN KODAK CO , SILVERSTEIN BARRY D , BIETRY JOSEPH RAYMOND , NOTHHARD GARY EDWIN , METZGER ROBERT , KURTZ ANDREW F
- Assignee: EASTMAN KODAK CO,SILVERSTEIN BARRY D,BIETRY JOSEPH RAYMOND,NOTHHARD GARY EDWIN,METZGER ROBERT,KURTZ ANDREW F
- Current Assignee: EASTMAN KODAK CO,SILVERSTEIN BARRY D,BIETRY JOSEPH RAYMOND,NOTHHARD GARY EDWIN,METZGER ROBERT,KURTZ ANDREW F
- Priority: US46971809 2009-05-21
- Main IPC: G02B27/48
- IPC: G02B27/48 ; G02B3/00 ; G02B5/02 ; H04N9/31
Abstract:
In a coherent light projection system including an image forming system (12), a relay system (18), a speckle reduction element (40), and a projection subsystem (20), the relay system can have a first f-number, and the projection subsystem can have a second f-number less than the first f-number. The relay system can have a first working distance (Wa), and the projection subsystem can have a second working distance (Wb) less than the first working distance. The image forming system can project an initial image having a first size, and an intermediate image can have a second size greater than or equal to the first size. The speckle reduction element can have a curved surface through which the intermediate image is transferred. The speckle reduction element can include a lenslet arrangement (44) formed on a surface thereof. The speckle reduction element can be moved in a direction parallel to an optical axis of the speckle reduction element.
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