Title:
MOLDING METHOD FOR PRESS LENS
Document Type and Number:
Japanese Patent JP2501160
Kind Code:
B2
Abstract:
PURPOSE: To ensure the title lens to be demolded after making a press molding of a lens material.
CONSTITUTION: In the title method where a heated and softened lens material 3 is put to press molding using a mold made up of top force 1 and bottom force 2, the top and bottom forces differ in temperature from each other, and the press lens is demolded after it is cooled to the mold's temperature.
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Inventors:
SUGATA SHIGEYA
GOTO MITSUO
GOTO MITSUO
Application Number:
JP6247392A
Publication Date:
May 29, 1996
Filing Date:
March 18, 1992
Export Citation:
Assignee:
OLYMPUS OPTICAL CO
International Classes:
C03B11/00; C03B11/08; C03B11/12; C03B23/00; (IPC1-7): C03B11/00; C03B11/12
Domestic Patent References:
| JPS60145919A | ||||
| JPS51101014A |
Foreign References:
| US1812564A |
Attorney, Agent or Firm:
Susumu Ito