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Title:
FORMING EQUIPMENT FOR OPTICAL DEVICE
Document Type and Number:
Japanese Patent JPH05823
Kind Code:
A
Abstract:

PURPOSE: To provide an optical device forming equipment constructed so that the upper mold member may be immediately separated with priority in opening the mold by noting that adhesive force of a forming glass raw material to the mold member is exclusively related to the contact area against the forming surface.

CONSTITUTION: In an optical device forming equipment where a forming glass raw material 4 heat-softened is given by forming with the exerted pressure between the upper mold member 2 and the lower mold member 1, each of the mold members 1, 2 is constructed so that the contact area of the forming surface 2 of the upper mold member 2 against the optical device when formed may be smaller than the contact area of the forming surface of the lower mold member 1. The forming glass raw material 4 is arranged in the prescribed size and shape between the mold members to perform forming with the exerted pressure.


Inventors:
TOMITA MASAYUKI
KUBO HIROYUKI
YAMAMOTO KIYOSHI
Application Number:
JP17341291A
Publication Date:
January 08, 1993
Filing Date:
June 19, 1991
Export Citation:
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Assignee:
CANON KK
International Classes:
C03B11/00; C03B11/08; (IPC1-7): C03B11/00
Attorney, Agent or Firm:
Yamashita