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:
Jun. 30, 2026
Filed:
Feb. 09, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Shunji Iwamoto, Tochigi, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An optical system includes a plurality of lens units. The lens units consisting of, in order from an object side to an image side, a first lens unit, a second lens unit having positive refractive power, a third lens unit, a fourth lens unit having positive refractive power, and a fifth lens unit. During focusing, the first lens unit, the third lens unit, and the fifth lens unit are fixed, and the second lens unit and the fourth lens unit move. The second lens unit consists of one lens component. The third lens unit includes at least one positive lens and one negative lens. The fourth lens unit includes at least two positive lenses and one negative lens.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile