PRODUCTION OF VITREOUS BODY HAVING REFRACTIVE INDEX DISTRIBUTION

Title:

PRODUCTION OF VITREOUS BODY HAVING REFRACTIVE INDEX DISTRIBUTION

Document Type and Number:

Japanese Patent JPS62119120

Kind Code:

A

Abstract:

PURPOSE: To easily obtain the titled vitreous body having refractive index distribution in a thickness direction by dipping silica gel added with Ti and B in the eluate of sulfuric acid, hydrochloric acid, etc., to elute a part of the Ti and B.

CONSTITUTION: The eluate consisting of ≥1 kind among sulfuric acid, hydrochloric acid, and nitric acid is prepared. Besides, silica gel contg. a Ti component and a B component is prepared, for example, by hydrolyzing Si(OCH3)4 contg. Ti(OC4H9)4 and B(OC2H5)3. The silica gel is dipped in the eluate at a temp. not exceeding the b.p. to elute a part of the Ti component and the B component. Then the silica gel is dried and sintered.

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Inventors:

SHINGYOUCHI KAZUO
KONISHI SHIRO
SUSA KENZO

Application Number:

JP25830785A

Publication Date:

May 30, 1987

Filing Date:

November 18, 1985

Export Citation:

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Assignee:

HITACHI CABLE
HITACHI LTD

International Classes:

C03B8/02; C03B20/00; C03B37/014; C03C1/00; C03C13/04; C03C23/00; G02B6/00; (IPC1-7): C03B8/00; C03B20/00; C03B37/014; C03C13/04; G02B6/00

Domestic Patent References:

JPS6042239A

1985-03-06

Attorney, Agent or Firm:

Takashi Matsumoto

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