Projection type image display apparatus, and optical unit...

Details Projection type image display apparatus, and optical unit... Projection type image display apparatus, and optical unit...

2006-04-20

2009-06-30

Lee, Diane I (Department: 2851)

Optics: image projectors

Polarizer or interference filter

C353S084000, C353S081000, C359S566000, C359S438000, C359S490020, C359S640000, C359S490020, C359S634000, C348S338000, C348S339000

Reexamination Certificate

active

07553025

ABSTRACT:
A polarization splitting section has a structure in that a polarization splitting layer is formed of a light reflecting grid member which is arranged in a grid-shaped pattern on an optically-transparent substrate, and an optically-transparent medium is filled between the grid member and the substrate in contact with the grid member surface and the substrate surface, and the grid member and the filled optically-transparent medium are bonded to the substrate with another adhesive agent or tackiness agent formed of an optically-transparent medium interposed. The polarization splitting layer is partly protruded externally from the surfaces of prism materials.

REFERENCES:
patent: 7315418 (2008-01-01), DiZio et al.
patent: 2003/0081317 (2003-05-01), Katsumata et al.
patent: 2005/0213043 (2005-09-01), Nakashima et al.
patent: 2001-142028 (2001-05-01), None
patent: 2003-195223 (2003-07-01), None

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