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:
Apr. 26, 2022
Filed:
Nov. 06, 2020
Mitsui Chemicals, Inc., Tokyo, JP;
Yoshinobu Okada, Niihama, JP;
Eiichiro Hikosaka, Nagoya, JP;
Toshifumi Hino, Saijo, JP;
Akifumi Aono, Nagoya, JP;
Akihiro Muramatsu, Marugame, JP;
MITSUI CHEMICALS, INC., Tokyo, JP;
Abstract
A lens includes: a substrate that includes a diffraction region where a plurality of protruding strips are coaxially and alternately formed. The diffraction region includes a first diffraction region and a second diffraction region that is located in at least a part of a region different from the first diffraction region. The second diffraction region includes: groove spaces lying between adjacent ones of the protruding strips with one another; and a communication space communicating between adjacent ones of the groove spaces with one another.