METHOD OF MANUFACTURING SPECTACLE LENSES

Title:

METHOD OF MANUFACTURING SPECTACLE LENSES

Document Type and Number:

Japanese Patent JPS5341890

Kind Code:

A

Abstract:

PURPOSE: To provide a method of manufacturing a spectacle lens, which comprises simultaneously grinding the spectacle lens at a plurality of positions in the peripheral part thereof by two rotary grinding wheels having parallel rotary shafts thereby preventing occurrence of minute cracks in the lens during the grinding operation.

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Inventors:

KAWACHI AKIHIKO

Application Number:

JP11614176A

Publication Date:

April 15, 1978

Filing Date:

September 28, 1976

Export Citation:

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Assignee:

SUWA SEIKOSHA KK

International Classes:

B24B9/14; G02C13/00; (IPC1-7): B24B9/14

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