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Patent Searching and Data


Title:
NEAR-INFRARED CUT FILTER GLASS
Document Type and Number:
WIPO Patent Application WO/2018/021223
Kind Code:
A1
Abstract:
The present invention provides a filter glass for cutting near-infrared rays, which retains a high transmittance of light in the visible range even when the concentration of Cu components in the filter glass is increased in association with thinning of the filter glass. This near-infrared cut filter glass is characterized by: containing P and Cu as essential cationic components; containing, as an anionic component, at least one element selected from Cl, Br and I; having a Cu content of 0.5-25% in cationic percentage; and containing a crystal.

Inventors:
INUZUKA Nobuo (3583-5, Kawashiri, Yoshida-ch, Haibaragun Shizuoka 02, 〒4210302, JP)
SAKAGAMI Takahiro (3583-5, Kawashiri, Yoshida-ch, Haibaragun Shizuoka 02, 〒4210302, JP)
Application Number:
JP2017/026641
Publication Date:
February 01, 2018
Filing Date:
July 24, 2017
Export Citation:
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Assignee:
ASAHI GLASS COMPANY, LIMITED (5-1 Marunouchi 1-chome, Chiyoda-ku Tokyo, 05, 〒1008405, JP)
International Classes:
C03C4/08; C03C3/23; C03C3/247; C03C10/16; G02B5/22
Domestic Patent References:
WO2007058185A12007-05-24
Foreign References:
JPH09202644A1997-08-05
JP2015522500A2015-08-06
JP2014012630A2014-01-23
JP2014101255A2014-06-05
JPH05105865A1993-04-27
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, P.C. (Yoshizawa Bldg, 18-14 Uchikanda 1-chome, Chiyoda-k, Tokyo 47, 〒1010047, JP)
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