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2 194 806

(13)

(51)

IPC

(21) (22)

Application

2001107259/12, 2001-03-20

(24)

Start date

2001-03-20

(22)

Actual filing date

2001-03-20

(45)

Published

2002-12-20

(72)

Inventor

Nefedova I.V.Borodin V.L.Ljutin V.I.Shvanskij P.P.Dorogovin B.A.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Nauchno-Issledovatel'Skij Institut Sinteza Mineral'Nogo Syr'Ja"

METHOD OF PRODUCING OPTICAL CALCITE SINGLE CRYSTALS Russian patent published in 2002 - IPC

Abstract RU 2194806 C1

FIELD: methods of producing optical calcite single crystals. SUBSTANCE: single crystals of optical calcite are produced by hydrothermal method including heating and recrystallization of calcium carbonate on seed from mixed solution of lithium halide and ammonium halide at temperature drop. Seed is used in the form of calcite plates oriented parallel to face of pinacoil (0001) with ratio of concentrations of lithium halide to ammonium halide in solution (2-): 1, respectively. Optical calcite single crystals are widely used as material for light polarization, beam divergent members, quick-operating laser gates and other optical devices. EFFECT: high-quality optical crystal material the most advantageous for manufacture of optical parts. 1 tbl, 1 ex

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RU 2 194 806 C1

Authors

Nefedova I.V.

Borodin V.L.

Ljutin V.I.

Shvanskij P.P.

Dorogovin B.A.

Dates

2002-12-20—Published

2001-03-20—Filed