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. 28, 2026
Filed:
Aug. 08, 2022
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Takako Suga, Kanagawa, JP;
Takeshi Uchida, Kanagawa, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 7/4865 (2020.01); G01S 7/481 (2006.01); G01S 17/10 (2020.01); G01S 17/931 (2020.01); H01S 5/183 (2006.01);
U.S. Cl.
CPC ...
G01S 7/4865 (2013.01); G01S 7/4814 (2013.01); G01S 7/4816 (2013.01); G01S 17/10 (2013.01); G01S 17/931 (2020.01); H01S 5/18361 (2013.01);
Abstract
The disclosed light source device includes a light emitting element including a first reflector, a second reflector, and a resonator spacer portion provided between the first reflector and the second reflector and including an active layer, and emits a first light as a laser beam and a second light as a spontaneous emission light, a light receiving element that determines an amount of the second light, and a determination unit that determines a timing at which the first light oscillates based on a decrease in the amount of the second light determined by the light receiving element.