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. 24, 2017

Filed:

Jan. 18, 2016
Applicants:

Qisda Optronics (Suzhou) Co., Ltd., Suzhou, Jiangsu, CN;

Qisda Corporation, Taoyuan, TW;

Inventor:

Chih-Shiung Chien, Taoyuan, TW;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/28 (2006.01); G02B 27/12 (2006.01); H04N 9/31 (2006.01); G03B 21/20 (2006.01); G03B 21/00 (2006.01); G02B 17/08 (2006.01); G02B 13/16 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2066 (2013.01); G02B 13/16 (2013.01); G02B 17/08 (2013.01); G03B 21/008 (2013.01); G03B 21/28 (2013.01); G03B 21/208 (2013.01);
Abstract

A projector includes a light source, a digital micro-mirror device (DMD), a first prism, a second prism, and a lens. The light source is used for emitting an incident light. The DMD is used for receiving and reflecting the incident light as an image light. The first prism is disposed between the light source and the DMD. The second prism is disposed between the first prism and the DMD. The first prism includes a first plane, a second plane, and an intermediate portion. The intermediate portion adjoins the first plane and includes a reflecting portion. The incident light from the second plane is reflected by the reflecting portion and then passes through the second plane. The second prism includes a fourth plane, a fifth plane, and a sixth plane. When the DMD is operated in an on-state, the image light passes through the sixth plane.


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Chien, Chih-Shiung. (2017). Projector (U.S. Patent No. 9798224). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9798224

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