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:
Mar. 10, 2020
Filed:
Jan. 24, 2019
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Yoshiro Ichihara, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 15/06 (2006.01); G03B 15/05 (2006.01);
U.S. Cl.
CPC ...
G03B 15/06 (2013.01); G03B 15/05 (2013.01); G03B 2215/0578 (2013.01); G03B 2215/0585 (2013.01);
Abstract
An illumination apparatus includes a light source portion including a light emitter and a reflector configured to reflect light from the light emitter, a mover configured to move at least one of the light emitter and the reflector so that a relative distance between the light emitter and the reflector varies in order to change a light distribution angle of the light source portion, and a controller configured to control a position of at least one of the light emitter and the reflector via the mover based on a light emission amount of the light emitter.