Optics: image projectors – Lens support – Lens position adjustable
Reexamination Certificate
2007-01-25
2010-10-19
Epps, Georgia Y (Department: 2878)
Optics: image projectors
Lens support
Lens position adjustable
C385S133000, C359S034000, C348S771000
Reexamination Certificate
active
07815318
ABSTRACT:
A projector capable of adjusting brightness and brightness uniformity includes a light module, a light pipe, a first lens module, a second lens module and an image module. The light module generates a light ray. The light pipe includes an entrance and an exit. The light ray is converged onto the entrance of the light pipe and outputted through the exit of the light pipe. The first lens module has a first focal surface, which overlaps the exit of the light pipe, and receives the light ray outputted through the exit of the light pipe. The second lens module has a second focal surface and receives the light ray outputted through the first lens module. The image module is disposed on the second focal surface of the second lens module and receives the light ray outputted through the second lens module.
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patent: 5860721 (1999-01-01), Bowron et al.
patent: 6113240 (2000-09-01), Iizuka
patent: 6461001 (2002-10-01), Okamori et al.
patent: 7354160 (2008-04-01), Lin
patent: 7465054 (2008-12-01), Howard et al.
patent: 2006/0279713 (2006-12-01), Wang et al.
Cruz Magda
Epps Georgia Y
Qlada Corporation
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