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:
Feb. 18, 2025
Filed:
Mar. 13, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Naoto Doujou, Tochigi, JP;
Kazuhiko Kajiyama, Tochigi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical system includes an aperture stop closest to an object and a plurality of lenses. The plurality of lenses includes a first positive lens convex toward an object side, a first negative lens convex toward the object side, a first cemented lens, and a second cemented lens arranged consecutively in this order from the object side to an image side. The first cemented lens and the second cemented lens each include a negative lens concave toward the object side and a positive lens cemented to the negative lens, and the negative lens and the positive lens are arranged in this order from the object side to the image side.