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Title:
METHOD FOR MANUFACTURING MOLD FOR MOLDING AND RESIN MOLDING USING ITS MOLD
Document Type and Number:
Japanese Patent JP2002154120
Kind Code:
A
Abstract:

To provide a method for manufacturing a mold for molding at a low cost by eliminating a difficult point of a pitch control of a rugged shape provided in the mold according to a curing temperature of a curing time shrinkage of a resin for forming the mold or a long cycle time when manufacturing the mold a resin molding and a resin molding having an optical element such as a Fresnel lens or the like using the mold.

The method for manufacturing the mold for molding comprises the steps of manufacturing an intermediate mold (protruding mold) having the rugged shape of a material to be molded made of a cured material of an ultraviolet curable resin by using an original mold (recess mold) having the rugged shape inverted from the rugged shape of the material to be molded, and manufacturing the mold for molding having a rugged shape made of a cured material of a reactive resin by using the intermediate mold. The resin molding uses the mold for molding.


Inventors:
ONO YOSHIYUKI
SAITO MASAO
Application Number:
JP2000000354052
Publication Date:
May 28, 2002
Filing Date:
November 21, 2000
Export Citation:
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Assignee:
TOPPAN PRINTING CO LTD
International Classes:
G02B3/00; B29C33/40; B29C43/02; B29C43/36; G02B3/08; (IPC1-7): B29C33/40; G02B3/00; G02B3/08