Title:
PRODUCTION OF ASPHERICAL FACE
Document Type and Number:
Japanese Patent JPS53125046
Kind Code:
A
Abstract:
PURPOSE: To perform easy and satisfactory production by hardening a high polymer compound between a thin parallel disc formed of an aspherical face by a negative pressure and a thick-walled large flat disc.
Inventors:
KATOU MASAHIKO
HORI KIYOSHI
HORI KIYOSHI
Application Number:
JP3984677A
Publication Date:
November 01, 1978
Filing Date:
April 07, 1977
Export Citation:
Assignee:
OLYMPUS OPTICAL CO
International Classes:
B24B13/00; B29C39/00; B29C39/22; B29C61/00; B29D11/00; G02B3/00; G02B3/02; (IPC1-7): B29D11/00; G02B3/02