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:
Apr. 24, 2018
Filed:
May. 03, 2016
Applicant:
Qisda Corporation, Taoyuan County, TW;
Inventor:
Chi-Cheng Lin, Taoyuan County, TW;
Assignee:
Qisda Corporation, Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); H04N 9/31 (2006.01); G03B 21/14 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); G03B 21/145 (2013.01); H04N 9/3144 (2013.01);
Abstract
A projector includes a casing having a top plate and a bottom plate, an optical engine disposed in the casing and between the top and bottom plates, and a plurality of heat sinks disposed around the optical engine. The top plate and the bottom plate have a plurality of top holes and bottom holes, respectively. Each heat sink has a plurality of fins and a plurality of air channels formed between the fins, wherein the top holes are aligned and communicate with the bottom holes through the air channels straightly.