ALUMINOPHOSPHATE GLASS CONTAINING COPPER (II) OXIDE, AND USE THEREOF FOR OPTICAL FILTERING

Title:

ALUMINOPHOSPHATE GLASS CONTAINING COPPER (II) OXIDE, AND USE THEREOF FOR OPTICAL FILTERING

Document Type and Number:

Japanese Patent JP2007290886

Kind Code:

A

Abstract:

To provide aluminophosphate glass having low transmission in the near infrared-ray range with a steep absorption edge.

This Cu-containing aluminophosphate glass comprises, by wt.%, 65-80 P2O5, 4-20 Al2O3, 0-5 SiO2, 0-<5.5 B2O3, 0-2.1 Y2O3, 0-2.1 La2O3, 0-7.9 MgO, 0-2.5 CaO, 0-2.5 SrO, 0-2.5 BaO, 0-8 ZnO, <18 SR'O, >2-12.5 Li2O, 0-6 Na2O, 0-4 K2O, 0-2.5 Rb2O, 0-2.5 Cs2O, >2-15 SR"2O, 4-24 SR'''2O3, 5-15 CuO, 0-0.5 V2O5, and 5-15 SCuO+V2O5, where SR'O is sum total of ZnO and alkaline earth metal oxides; SR"2O is sum total of alkali metal oxides; and SR'''2O3is sum total of R'''2O3compounds where R''' is Al, B, Y or La.

Inventors:

HAYDEN JOSEPH
PUCILOWSKI SALLY

Application Number:

JP2006118627A

Publication Date:

November 08, 2007

Filing Date:

April 24, 2006

Export Citation:

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Assignee:

SCHOTT CORP

International Classes:

C03C4/08; C03C3/062; C03C3/064; C03C3/066; C03C3/068; C03C3/17; C03C3/19; C03C3/21; C03C3/23; G02B5/22

Attorney, Agent or Firm:

Akaoka Michio
Kazuo Akaoka

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