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:
Mar. 10, 2026
Filed:
Jun. 03, 2020
Applicant:
Sony Interactive Entertainment Inc., Tokyo, JP;
Inventors:
Fumihiko Sato, Tokyo, JP;
Manabu Ishioka, Tokyo, JP;
Hiroyuki Tatsubori, Aichi, JP;
Rei Miyazaki, Chiba, JP;
Shotaro Tada, Tokyo, JP;
Assignee:
Sony Interactive Entertainment Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 3/08 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G02B 3/08 (2013.01); G02B 27/0172 (2013.01);
Abstract
There is provided a Fresnel lens capable of restraining flare from occurring. Each of a plurality of prisms () of a Fresnel lens () has an effective surface (Es) and a noneffective surface (Ns). In each of the prisms (), the noneffective surface (Ns) has a first noneffective surface (Ns) and a second noneffective surface (Ns) that is closer to a crest () of the prism () than the first noneffective surface (Ns). The first noneffective surface is inclined to an optical axis (Z).