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:
May. 30, 2023
Filed:
Oct. 27, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Yuichiro Kato, Tochigi, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is an optical apparatus including: an optical member; a focus motor configured to move the optical member; a lens CPU configured to control the focus motor; an MF ring including a reflection portion and a low reflection portion having a reflectance lower than a reflectance of the reflection portion, and a photo-reflector configured to receive light reflected by the reflection portion, wherein the lens CPU is configured to control the focus motor based on output from the photo-reflector, and the reflection portion has conductivity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile