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:
Oct. 06, 2020
Filed:
Nov. 29, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Azusa Sugawara, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A strobe device for use with an external camera. Assist continuous light is emitted using first and second LEDs different in color temperature. The color temperature of the assist continuous light is adjusted by either lighting one of the first and second LEDs or simultaneously lighting both at an adjusted light amount ratio. When in a still image pre-check mode, it is determined whether not a color temperature of an ambient light is higher than a threshold value. If the color temperature is higher than the threshold value, the light amount ratio is adjusted such that the light amount of the first LED is larger than that of the second LED, whereas if not, the light amount ratio is adjusted such that the light amount of the second LED is larger than that of the first LED.