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:
Nov. 03, 2026
Filed:
Jul. 01, 2025
Tamron Co., Ltd., Saitama, JP;
Hiroki Emura, Saitama, JP;
Yoshito Iwasawa, Saitama, JP;
TAMRON CO., LTD., Saitama, JP;
Abstract
In order to solve the above problem, an optical system according to the present invention includes a front group, a diaphragm, and a rear group in order from an object side, in which the optical system includes a lens A having positive refractive power and being closest to the object side in the front group and a lens B having negative refractive power and being closest to an image side in the rear group, an object-side surface of the lens B has a concave surface with respect to the object side, a number of lenses having refractive power and included in the front group and the rear group is eight or less in total, and the optical system satisfies a predetermined condition.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile