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:
Nov. 14, 2023
Filed:
Dec. 03, 2021
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Takao Miura, Tochigi, JP;
Kazuyuki Kasumi, Tochigi, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 29/71 (2015.01); F21V 29/52 (2015.01); F21V 23/00 (2015.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21V 29/71 (2015.01); F21V 23/004 (2013.01); F21V 29/52 (2015.01); F21Y 2115/10 (2016.08);
Abstract
An LED light source module includes a circuit board, solid-state light emitting elements arranged on the circuit board, a heatsink disposed in contact with the circuit board and having a channel formed inside, through which refrigerant flows, and a switching unit configured to switch a flow direction of refrigerant through the channel to an opposite direction.