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:
Sep. 17, 2024
Filed:
Jul. 29, 2021
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Toshiya Yonehara, Fukushima, JP;
Ryota Murakami, Fukushima, JP;
Koichi Tashima, Fukushima, JP;
Kensuke Ono, Tokyo, JP;
Assignee:
AGC Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/42 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
G02B 27/4205 (2013.01); G03B 21/2033 (2013.01); G03B 21/2053 (2013.01);
Abstract
A diffractive optical element includes a unit structure periodically arranged in a first direction and configured to diffract incident light in the first direction. The diffractive optical element has a phase pattern designed such that an angular separation between an outermost diffracted light beam and a second-outermost diffracted light beam along the first direction is smaller than the divergence angle of the incident light.