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:
Jan. 31, 2017
Filed:
Feb. 28, 2013
Applicants:
Yukio Sato, Tokyo, JP;
Mitoru Yabe, Tokyo, JP;
Shigetoshi Ipposhi, Tokyo, JP;
Inventors:
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 29/02 (2006.01); H04N 9/31 (2006.01); G03B 21/16 (2006.01); F21V 29/67 (2015.01);
U.S. Cl.
CPC ...
F21V 29/025 (2013.01); F21V 29/673 (2015.01); G03B 21/16 (2013.01); H04N 9/3144 (2013.01);
Abstract
A light source device includes an outer housing, a partitioning member for forming a multi-stage structure in the outer housing, thereby partitioning each stage, a plurality of light source units disposed in respective stages of the outer housing, each of which has light source members and a heat pump unit for cooling the light source members, an opening portion for taking air acting as cooling air to be supplied to a cooling body from an outer part of the outer housing into an inner part thereof, and an opening portion formed along arrangement of the light source units in the partitioning member.