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. |
申请人 |
EASTMAN KODAK COMPANY;SILVERSTEIN, BARRY, DAVID;NOTHHARD, GARY, EDWIN;BIETRY, JOSEPH, RAYMOND;METZGER, ROBERT;KURTZ, ANDREW, FREDERICK |
发明人 |
SILVERSTEIN, BARRY, DAVID;NOTHHARD, GARY, EDWIN;BIETRY, JOSEPH, RAYMOND;METZGER, ROBERT;KURTZ, ANDREW, FREDERICK |