The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 21, 2007

Filed:

Jul. 12, 2005
Applicant:

Sze-ke Wang, Miao-Li County, TW;

Inventor:

Sze-Ke Wang, Miao-Li County, TW;

Assignee:

Coretronic Corporation, Miao-Li County, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/28 (2006.01); G03B 21/26 (2006.01); G03B 3/00 (2006.01); G03B 21/20 (2006.01); G02F 1/1335 (2006.01); H04N 5/74 (2006.01); G02B 6/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical projection device including an illumination system, a reflective light valve and a projection lens is provided. The adjustable reflection sheet is disposed behind the adjustable rod integrator along the light transmission path of the light beam. In addition, the reflective light valve is disposed behind the adjustable reflection sheet along the light transmission path of the light beam. The adjustable rod integrator can shift the light transmission path of the light beam so as to be incident to the reflective light valve. Moreover, the projection lens is disposed behind the reflective light valve along the light transmission path of the light beam. The adjustable reflection sheet can shift the light transmission path of the light beam so as to pass through the stopper of the projection lens.


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