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2 214 976

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Application

2002110972/03, 2002-04-25

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Start date

2002-04-25

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Actual filing date

2002-04-25

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Published

2003-10-27

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Inventor

Molev V.I.Pozdnjakov A.E.Rumjantsev V.V.Samujlov A.V.Surkova V.F.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Opticheskogo Stekla"

OPTICAL GLASS FOR INFRARED REGION OF SPECTRUM Russian patent published in 2003 - IPC

Abstract RU 2214976 C1

FIELD: glass industry. SUBSTANCE: invention relates to production of glass for optical aims. Glass comprises the following components, wt.-%: Al2O3, 40-51; CaO, 23-34; MgO, 3-6; BaO, 8-15; Na2O, 0.5-3; K2O, 0.1-1.5; Y2O3, 7-10. For reduction of crystallization SiO2 in the amount 0.55.0 can be added to glass. Integral transmission coefficient in the range of spectrum 2-5 mcm is 0.7-0.71 cm-1 and for wavelength 1.06 mcm 0.87-0.88 cm-1. Proposed glass can be used in making articles working in the range of spectrum 0.4-5 mcm. Invention provides improvement of alumocalcium glass with enhanced transmission curve index. EFFECT: improved and valuable properties of glass. 2 cl, 2 dwg

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RU 2 214 976 C1

Authors

Molev V.I.

Pozdnjakov A.E.

Rumjantsev V.V.

Samujlov A.V.

Surkova V.F.

Dates

2003-10-27—Published

2002-04-25—Filed

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