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:
Jul. 29, 2025
Filed:
Jul. 22, 2020
Applicant:
Young Jin Song, Yongin-si, KR;
Inventors:
Young Jin Song, Yongin-si, KR;
Chang Kwon Hwangbo, Incheon, KR;
Assignee:
[object Object];
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/115 (2015.01); C23C 14/22 (2006.01); G02B 5/28 (2006.01);
U.S. Cl.
CPC ...
G02B 1/115 (2013.01); C23C 14/22 (2013.01); G02B 5/28 (2013.01);
Abstract
An optical filter according to an embodiment of the present invention comprises a first mirror layer where a first high refraction material layer and a first low refraction material layer are alternately deposited, a spacer layer continuously deposited above one side surface of the first mirror layer, and comprises a plurality of second high refraction material layers, and a second mirror layer located to face the first mirror layer with the spacer layer interposed therebetween, and where a third high refraction material layer and a third low refraction material layer are alternately deposited.