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:
Sep. 30, 2025
Filed:
Jan. 11, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Maki Yokoya, Tochigi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A stereoscopic optical system includes two optical systems arranged in parallel. Each of the two optical systems includes a plurality of lens units that consist of, in order from an object side to an image side, a first lens unit having negative refractive power, a second lens unit, and a third lens unit having positive refractive power. The first lens unit includes a first reflective member disposed closest to an image plane. The third lens unit includes a second reflective member disposed closest to an object. The second lens unit includes a plurality of lens units that consist of, in order from the object side to the image side, a first subunit having positive refractive power and a second subunit having negative refractive power that are spaced by a widest air gap. The second subunit includes an aperture stop disposed closest to the image plane.