Optical system for projector and imaging method thereof

Details Optical system for projector and imaging method thereof Optical system for projector and imaging method thereof

2006-05-23

2008-10-28

Collins, Darryl J (Department: 2873)

Optical: systems and elements

Lens

With field curvature shaping

Reexamination Certificate

active

07443595

ABSTRACT:
An optical system for a projector and an imaging method thereof. A light beam from a light source passes through a first lens set and a second lens set sequentially. The light beam having passed through the second lens set is reflected by a first mirror to pass through the second lens set again and arrived at an imaging device. The light is reflected from the imaging device to a projection lens set to project the light beam onto a screen.

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patent: 5808805 (1998-09-01), Takahashi
patent: 5861997 (1999-01-01), Takahashi
patent: 5999333 (1999-12-01), Takahashi
patent: 7068436 (2006-06-01), Gruner et al.
patent: 1524194 (2004-08-01), None
patent: 1561468 (2005-01-01), None

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