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. 14, 2023
Filed:
Aug. 31, 2021
Seiko Epson Corporation, Tokyo, JP;
Eiji Morikuni, Matsumoto, JP;
Takuro Fushimi, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A lens includes a first surface, a second surface opposed to the first surface, a first outer circumferential part disposed at an outer circumferential side of the first surface, a second outer circumferential part disposed at an outer circumferential side of the second surface, three or more first reference parts provided to the first outer circumferential part, three or more second reference parts provided to the second outer circumferential part, and a first reference surface disposed at an outer circumferential side of the first outer circumferential part and the second outer circumferential part. The first surface and the second surface have a common design axis. A first imaginary plane including the first reference parts and a second imaginary plane including the second reference parts are perpendicular to the design axis respectively. The first reference surface extends in parallel to the design axis.