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. 28, 2025
Filed:
Jan. 18, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Yuma Kobayashi, Tochigi, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An optical system consists of, in order from an object side to an image side, a first unit, a second unit, and a third unit. The first unit includes a first substrate, a first lens disposed on the object side of the first substrate, and a second lens having negative power and disposed on the image side of the first substrate. The second unit includes a second substrate and a third lens having positive power and disposed on the object side or the image side of the second substrate. The third unit includes a third substrate and a fourth lens having positive power and disposed on the object side or the image side of the third substrate. A predetermined condition is satisfied.