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. 10, 2026
Filed:
Mar. 04, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Yu Miyajima, Tochigi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is an apparatus including: an element in which a fine structure changing a polarization state of a light flux from a light source is formed on at least one of an incident surface or an exit surface thereof; a deflecting unit deflecting light flux that has passed through optical element to scan a scanned surface in a main scanning direction; and an optical system guiding light flux deflected by deflecting unit to scanned surface, wherein fine structure includes a plurality of protruding portions each extending in a first direction, the plurality of protruding portions being arrayed in a second direction perpendicular to first direction, and wherein the following condition is satisfied:1/20≤Δ/λ≤1/6,