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:
Oct. 04, 2011

Filed:

Dec. 12, 2007
Applicants:

Mei-ling Chen, Hsinchu, TW;

S-wei Chen, Hsinchu, TW;

Chao-shun Chen, Hsinchu, TW;

Hung-cheng Lung, Hsinchu, TW;

Chun-fa Hsu, Hsinchu, TW;

Cheng-shun Liao, Hsinchu, TW;

Inventors:

Mei-Ling Chen, Hsinchu, TW;

S-Wei Chen, Hsinchu, TW;

Chao-Shun Chen, Hsinchu, TW;

Hung-Cheng Lung, Hsinchu, TW;

Chun-Fa Hsu, Hsinchu, TW;

Cheng-Shun Liao, Hsinchu, TW;

Assignee:

Young Optics Inc., Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An illumination system for providing an illumination beam to a light valve is provided. The illumination system includes a light source, a light integration rod, a color wheel, a first focusing unit and a second focusing unit. The light source is capable of generating the illumination beam, and the light integration rod is disposed on the transmission path of the illumination beam. The first focusing unit is disposed between the integration rod and the color wheel and is capable of focusing the illumination beam onto the color wheel. The second focusing unit is disposed between the color wheel and the light valve and is capable of focusing the illumination beam onto the light valve.


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