发明名称 |
OPTICAL PROJECTION SYSTEM WITH LENSLET ARRANGEMENT ON SPECKLE REDUCTION ELEMENT |
摘要 |
In a coherent light projection system including an image forming system, a relay system, a speckle reduction element, and a projection subsystem, 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, and the projection subsystem can have a second working distance 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 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. |
申请公布号 |
EP2433175(A2) |
申请公布日期 |
2012.03.28 |
申请号 |
EP20100723814 |
申请日期 |
2010.05.11 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
SILVERSTEIN, BARRY, DAVID;NOTHHARD, GARY, EDWIN;BIETRY, JOSEPH, RAYMOND;METZGER, ROBERT;KURTZ, ANDREW, FREDERICK |
分类号 |
G02B27/48;G02B3/00;G02B5/02;G03B21/20;H04N9/31 |
主分类号 |
G02B27/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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