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.

Date of Patent:
Sep. 08, 2026

Filed:

Jan. 02, 2024
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Mikio Kobayashi, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/42 (2006.01);
U.S. Cl.
CPC ...
G02B 27/4205 (2013.01);
Abstract

A diffractive optical element includes a diffractive area including annular sections concentrically arranged. At least one of the annular sections has a non-circular shape. A predetermined inequality is satisfied.


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Kobayashi, Mikio. (2026). Diffractive optical element, optical system, image pickup apparatus, and display apparatus (U.S. Patent No. 12730331). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12730331

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