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:
May. 23, 2017
Filed:
Aug. 10, 2012
Mikio Ikenishi, Shinjuku-ku, JP;
Yoshitake Tanno, Shinjuku-ku, JP;
Mikio Ikenishi, Shinjuku-ku, JP;
Yoshitake Tanno, Shinjuku-ku, JP;
HOYA CORPORATION, Tokyo, JP;
Abstract
To provide a fluorophosphates glass having a weather-resistant property and having an O/Pratio even after production, which is set so that Cucan be added with a quantity of such a degree suppressing an absorption of a visible light while absorbing a near-infrared light, and a method for producing the same, and a near-infrared light absorbing filter, wherein a molar ratio of a content of Owith respect to a content of P(O/P) in the fluorophosphates glass, is 3.2 or more and less than 3.4, and a molar ratio of a content of Fwith respect to a total content of Oand F(F/(O+F)) in the fluorophosphates glass is 0.05 or more and 0.25 or less.