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:
Sep. 24, 2019
Filed:
Jan. 09, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Keiichiro Saito, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A lighting device that properly controls light emission, thereby making it possible to perform product protection of the lighting device from generated heat without impairing usability. The lighting device is capable of using a plurality of types of batteries attached thereto, and includes a light emission section to which electric power is supplied from the attached battery. The lighting device includes a processor that functions as a light emission control unit configured to control light emission from the light emission section, and an acquisition unit configured to acquire information on the battery, including information on a temperature of the attached battery. A parameter for use in limiting light emission from the light emission section is determined based on a result of acquisition of the information on the battery.