Optics: image projectors – Plural
Reexamination Certificate
2007-08-31
2010-11-16
Sohn, Seung C (Department: 2878)
Optics: image projectors
Plural
C353S099000, C353S038000, C362S234000, C362S235000
Reexamination Certificate
active
07832876
ABSTRACT:
A projection display includes first and second light sources, a reflection/transmission member which partially transmits a first light beam from the first light source and partially reflects a second light beam from the second light source, and a light valve which converts the light beam from the reflection/transmission member into an optical image in accordance with a video signal. The reflection/transmission member has a reflective surface which is one side main surface, a light-shielding surface which is the other side main surface, and a plurality of openings extending through the both main surfaces. The first light beam is transmitted through the openings from the light-shielding surface to the reflective surface, and the second light beam is reflected off the reflective surface in the direction that the first light beam is transmitted.
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Birch & Stewart Kolasch & Birch, LLP
Mitsubishi Electric Corporation
Sohn Seung C
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