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. 27, 2021
Filed:
Dec. 15, 2017
Applicant:
Xinyang Sunny Optics Co., Ltd., Henan, CN;
Inventors:
Assignee:
XINYANG SUNNY OPTICS CO., LTD., Xinyang, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/22 (2006.01); G02B 1/115 (2015.01); G02B 5/20 (2006.01); G03B 11/00 (2021.01);
U.S. Cl.
CPC ...
G02B 1/115 (2013.01); G02B 5/208 (2013.01); G03B 11/00 (2013.01);
Abstract
The application relates to an infrared cut-off filter, which includes: a substrate composed of white glass and an infrared cut-off film layer plated on one surface of the white glass; a spin-coated layer plated on the other surface of the white glass; and a reflection-reducing film layer plated on the spin-coated layer; the spin-coated layer includes a bottom layer and an absorbing layer each composed of an organic substance. The infrared cut-off filter has a stable structure, a high degree of firmness between layers, and a low cost.