Optics: image projectors – Color filter
Reexamination Certificate
2003-10-13
2008-12-09
Perkey, W. B. (Department: 2862)
Optics: image projectors
Color filter
C353S020000, C353S031000, C353S034000, C348S742000, C349S005000, C349S018000
Reexamination Certificate
active
07461940
ABSTRACT:
The invention concerns an image display system comprising: a light source emitting an illuminating laser beam, a spatial light modulator controlled by control video signals corresponding to a succession of image frames; a matrix filter consisting of an array of different elementary color filters, illuminated by said illuminating beam and transmitting a spatially color-filtered beam to the spatial light modulator, an image of said filter being produced on an input surface of the spatial light modulator; means for displacing the filter image on the input of the spatial light modulator; and a control device for controlling at least one sequence of displacements of the filter image upon each image frame display.
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patent: 5416514 (1995-05-01), Janssen et al.
patent: 5684498 (1997-11-01), Welch et al.
patent: 6215579 (2001-04-01), Bloom et al.
patent: 6273571 (2001-08-01), Sharp et al.
patent: 2002/0008812 (2002-01-01), Conner et al.
patent: 2002/0024618 (2002-02-01), Imai
patent: 0777 390 (1997-06-01), None
Search Report Dated Mar. 3, 2004.
Blonde Laurent
Doyen Didier
Sarayeddine Khaled
Fenwick Warren K
Fried Harvey
Laks Joseph J.
Perkey W. B.
Thomson Licensing
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