Optics: image projectors – Composite projected image – Reflector between lamp and screen
Reexamination Certificate
2005-06-02
2008-07-22
Sever, Andrew T (Department: 2851)
Optics: image projectors
Composite projected image
Reflector between lamp and screen
C353S099000, C359S858000
Reexamination Certificate
active
07401928
ABSTRACT:
A display optical system includes a light-source unit, a first optical unit which collects a light beam from the light-source unit, a scanning member which scans the light beam from the first optical unit, and a second optical unit which focuses the light beam scanned by the scanning member on about a scanning surface. An optical axis, defined by an optical path along which a light ray travels from the center of the scanning member to the center of the scanning surface via the second optical unit, intersects itself. In addition, the second optical unit includes two reflective mirrors having positive optical powers.
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Kobayashi Shuichi
Taniguchi Naosato
Yamamoto Akira
Canon Kabushiki Kaisha
Canon USA Inc IP Div
Sever Andrew T
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