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.

Patent No.:

US 8896769 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 25, 2014

Filed:

Nov. 21, 2012
Applicant:

Min Aik Technology Co., Ltd., Taoyuan County, TW;

Inventors:

Shi-Hwa Huang, New Taipei, TW;

Mao-Sheng Hsu, Tao Tuan, TW;

Ming-Hsien Tsai, Tao Tuan, TW;

Chi-Wei Chen, Tao Tuan, TW;

Assignee:

Min Aik Technology Co., Ltd., Taoyuan County, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G03B 21/00 (2006.01); G03B 21/20 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13362 (2013.01); G03B 21/006 (2013.01); G03B 21/2073 (2013.01); H04N 9/3111 (2013.01); H04N 9/3167 (2013.01); H04N 9/3173 (2013.01);
Abstract

A projection system includes an illumination device, a LCOS microdisplay element, an optical projection lens, a total internal reflection prism, and a polarizer. The polarizer is a reflective polarizer or an absorptive polarizer. The total internal reflection prism is arranged between the illumination device, the LCOS microdisplay element and the optical projection lens. A plurality of lighting paths are created between the illumination device and the LCOS microdisplay element. A plurality of imaging paths are created between the LCOS microdisplay element and the optical projection lens. The polarizer is only located in the lighting paths.


Find Patent Forward Citations

Huang, Shi-Hwa. (2014). Projection system (U.S. Patent No. 8896769). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8896769

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