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. 11, 2018
Filed:
Aug. 08, 2017
Applicant:
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Inventor:
Makoto Shiratori, Haibara-gun, JP;
Assignee:
AGC Inc., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/247 (2006.01); C03C 4/08 (2006.01); G02B 5/22 (2006.01); G02B 5/20 (2006.01);
U.S. Cl.
CPC ...
C03C 3/247 (2013.01); C03C 4/08 (2013.01); C03C 4/082 (2013.01); G02B 5/208 (2013.01); G02B 5/22 (2013.01); G02B 5/226 (2013.01); C03C 2204/00 (2013.01);
Abstract
To provide a near infrared cutoff filter glass which is excellent in optical properties such that the transmittance of light in the visible range is high and the transmittance of near infrared light is low. A near infrared cutoff filter glass comprising P, F, O, Cu and Ce, wherein by cation %, from 0.1 to 15% of Cuis contained, and the ratio of Cuto Ce(Cu/Ce) is from 3.5 to 15.