Glass material producing method and gel dipping apparatus

Details Glass material producing method and gel dipping apparatus Glass material producing method and gel dipping apparatus

1997-08-19

1999-01-12

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

65 172, 65 3013, C03L 300, C03B 802

Patent

active

058588922

ABSTRACT:
A method which enables an optical element having a large refractive index difference and a stabilized refractive index distribution to be produced in a short time. When a gel prepared by a sol-gel method is immersed in a solution containing at least one substance selected from the group consisting of an organic solvent, water, an acid, and an alkali, or in a solution having a metal salt dissolved in the at least one substance selected from the above group, a component eluted into the solution from the gel and/or a foreign substance which is produced or mixed in the solution during the solution immersing step is removed, and a component diffused into the gel from the solution is supplemented to the solution.

REFERENCES:
patent: 5234870 (1993-08-01), Osaka et la.
patent: 5244844 (1993-09-01), Inami et al.
patent: 5294573 (1994-03-01), Haun
patent: 5356840 (1994-10-01), Noda
patent: 5439495 (1995-08-01), Koike et al.

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