Method of producing optical element

Details Method of producing optical element Method of producing optical element

2007-01-19

2010-11-09

Kunemund, Robert M (Department: 1714)

Single-crystal, oriented-crystal, and epitaxy growth processes;

Processes of growth from liquid or supercritical state

Having moving solid-liquid-solid region

C117S046000, C117S050000, C117S072000, C117S075000

Reexamination Certificate

active

07828895

ABSTRACT:
The invention relates to a method of producing an optical element using a garnet single crystal for the purpose of providing an optical element with a reduced Pb content or from which Pb can preliminarily be removed completely. By growing a garnet single crystal by using a solution containing Na, Bi and B by the LPE process and thermally treating the garnet single crystal in reducing atmosphere prepared by using nitrogen gas and/or hydrogen gas, the resulting thermally treated garnet single crystal is used to prepare an optical element.

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