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.:
Date of Patent:
May. 19, 2015
Filed:
Nov. 21, 2012
Applicant:
Young Optics Inc., Hsinchu, TW;
Inventors:
Hui-Ping Chen, Hsinchu, TW;
Cheng-Wei Tien, Hsinchu, TW;
Assignee:
Young Optics Inc., Hsinchu, TW;
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); H04N 9/31 (2006.01); H04N 5/74 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3105 (2013.01); H04N 5/7458 (2013.01); G03B 21/2066 (2013.01); G03B 21/208 (2013.01); G03B 21/00 (2013.01); H04N 9/3114 (2013.01); H04N 9/3152 (2013.01);
Abstract
A projection device having an image beam and an off-state light is provided, which includes a camera module, a condensing element, a digital micromirror device (DMD) and a shading element, wherein the DMD allows the image beam to enter the camera module, and the shading element is configured between the DMD and the condensing element to block the off-state light.