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:
Jun. 16, 2026
Filed:
Dec. 02, 2022
Fujifilm Corporation, Tokyo, JP;
Koki Nakabayashi, Saitama, JP;
FUJIFILM CORPORATION, Tokyo, JP;
Abstract
A blazed diffractive optical element includes: a blazed diffraction grating pair that includes a first blazed member and a second blazed member and functions as a diffraction grating with the first blazed member and the second blazed member; and an interlayer that is positioned between the first blazed member and the second blazed member, in which in a case where a refractive index of the first blazed member is represented by Na, a refractive index of the interlayer is represented by N, and a refractive index of the second blazed member is represented by Nb, a magnitude relationship of Na>N>Nb is satisfied.
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