Imaging unit for color projection engine comprising...

Details Imaging unit for color projection engine comprising... Imaging unit for color projection engine comprising...

2011-03-15

2011-03-15

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Polarizer or interference filter

Reexamination Certificate

active

07905600

ABSTRACT:
An imaging unit including a first spectral splitting and illumination part and a second spectral splitting and recombination part. Within the first spectral splitting part received white light is split up into a first spectral component and a second spectral component. In the second spectral splitting part the second spectral component is split up into a third spectral component and a fourth spectral component. Additionally, first, second, and third partial images of an image to be generated are produced with respect to the first, third, and fourth spectral components of the white light. The first, second, and third partial images are recombined to obtain a recombined or reproduced image. The second spectral and polarization selective splitting and recombination part includes a dichloric beam splitting device and first and second polarization selective or polarizing beam splitting devices.

REFERENCES:
patent: 6343864 (2002-02-01), Tajiri
patent: 6550919 (2003-04-01), Heine
patent: 6628346 (2003-09-01), Ebiko
patent: 6789902 (2004-09-01), Hayashi et al.
patent: 2003/0189676 (2003-10-01), Kato et al.
patent: 2004/0001186 (2004-01-01), Yamamoto
patent: 1463384 (2003-12-01), None
patent: WO 00/58772 (2000-10-01), None
patent: WO 00/70403 (2000-11-01), None

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