Light source unit and projection type image display apparatus

Details Light source unit and projection type image display apparatus Light source unit and projection type image display apparatus

2007-04-25

2010-10-05

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S225000

Reexamination Certificate

active

07807957

ABSTRACT:
A projection display apparatus in which the longitudinal direction of an arc type lamp is parallel with the longitudinal direction of an aperture of a polarization exchange element.

REFERENCES:
patent: 6607276 (2003-08-01), Akiyama
patent: 7185984 (2007-03-01), Akiyama
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patent: 2001-092011 (2001-04-01), None
patent: 2001-249405 (2001-09-01), None
patent: 2005-234471 (2005-09-01), None

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