Aluminophosphate glass containing copper(II) oxide

Details Aluminophosphate glass containing copper(II) oxide Aluminophosphate glass containing copper(II) oxide

1991-10-04

1992-12-22

Bell, Mark L.

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

2523016P, 252582, 252587, 501 41, 501 45, 501 48, 501 73, 501904, 501905, C09K 1108, G02B 522, C03C 316, C03C 317

Patent

active

051732122

ABSTRACT:
An aluminophosphate glass containing copper(II) oxide having a low transmission in the near infrared range with a steep absorption edge as well as a very uniform high transparency in the visible range is particularly suitable as filter glass for color video cameras or as filter glass, e.g., for goggles and color displays, said glass comprising, in % by weight on the oxide basis, 67-77 of P.sub.2 O.sub.5 ; 8-13 of Al.sub.2 O.sub.3 ; 0-5.5 of B.sub.2 O.sub.3 ; 0-2.1 of SiO.sub.2 ; 0-2.5 of Li.sub.2 O; 0-6 of Na.sub.2 O; 0-14 of K.sub.2 O; 0-2.5 of Rb.sub.2 O; 0-2.5 of Cs.sub.2 O; .SIGMA. alkali metal oxide 3-14; 2.5-4.9 of MgO; 0-2.5 of CaO; 0-2.5 of SrO; 0-2.5 of BaO; 0-2.5 of ZnO; .SIGMA. alkaline-earth metal oxides+ZnO less than 5; 2-7.5 of CuO; 0.001-0.5 of V.sub.2 O.sub.5 ; CuO+V.sub.2 O.sub.5 of 2-7.5.

REFERENCES:
patent: 4105577 (1978-08-01), Yamashita
patent: 4217382 (1980-08-01), Toratani
patent: 4229220 (1980-10-01), Hirota
patent: 4303298 (1981-12-01), Yamashita
patent: 4615989 (1986-10-01), Ritze
patent: 4929387 (1990-05-01), Hayden et al.

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