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:
Dec. 29, 2020
Filed:
Aug. 28, 2018
Applicant:
Samsung Display Co., Ltd., Yongin-si, KR;
Inventors:
Assignee:
SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01); G02B 26/10 (2006.01); G02B 26/12 (2006.01); G02B 13/00 (2006.01); G02B 27/00 (2006.01); G02B 27/42 (2006.01); B23K 26/06 (2014.01); B23K 26/0622 (2014.01); B23K 26/38 (2014.01); B23K 26/08 (2014.01); G02B 13/22 (2006.01);
U.S. Cl.
CPC ...
G02B 13/0005 (2013.01); B23K 26/0624 (2015.10); B23K 26/0648 (2013.01); B23K 26/0652 (2013.01); B23K 26/08 (2013.01); B23K 26/38 (2013.01); G02B 27/0031 (2013.01); G02B 27/4211 (2013.01); G02B 27/4227 (2013.01); G02B 13/22 (2013.01);
Abstract
An F-theta lens includes a diffractive optical element and a plurality of spherical lenses. The diffractive optical element includes multi-level diffractive structure having three or more levels and defined on a surface thereof, and the diffractive optical element is arranged before the spherical lenses on a path of a laser beam.