Optics: image projectors – Lens support – Lens position adjustable
Reexamination Certificate
2006-12-15
2010-06-29
Epps, Georgia Y (Department: 2878)
Optics: image projectors
Lens support
Lens position adjustable
C353S119000, C359S823000
Reexamination Certificate
active
07744227
ABSTRACT:
A projector includes an image forming device, a projection lens for projecting an image produced by the image forming device, and an external case which accommodates the image forming device and at least a part of the projection lens and has an opening through which a light emission end of the projection lens is exposed. The projection lens has a lens barrel and a plurality of lenses equipped within the lens barrel. The lens barrel has a fixed part and a movable part. A turn table for shifting the movable part of the lens barrel in the direction of the optical axis of the projection lens is provided. The direction of the rotation axis of the turn table is substantially perpendicular to the optical axis of the projection lens. The top surface of the turn table is exposed through the outer surface of the external case.
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MP3222, 1994-2008 China Academic Journal Electric Publishing House, http://www.cnki.net, Oct. 2004.
Ishikawa Takeshi
Shindo Hiroyuki
Cruz Magda
Epps Georgia Y
Oliff & Berridg,e PLC
Seiko Epson Corporation
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