Title:
MOLDING DIE MANUFACTURING METHOD, MOLDING DIE, MOLDING DIE REGENERATION METHOD, AND OPTICAL ELEMENT MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/034816
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a molding die manufacturing method capable of fixing the position and height of optical transfer surfaces stably and with good precision even when the molding die is configured from peripheral molds and core molds. A method for manufacturing a molding die (40) provided with a fixed die (41), which is a first die, and a movable die (42), which is a second die. The method comprises: a member-manufacturing process for manufacturing the core molds (51, 61) and peripheral molds (52, 62) that configure the fixed die (41) and the movable die (42), the core molds having optical transfer surfaces (51a, 61a) for forming the optical surfaces (Sa, Sb) of a lens (OL), which is an optical element, and the peripheral molds being for supporting the core molds (51, 61) from the perimeter; and a unifying process for unifying the core molds (51, 61) with the peripheral molds (52, 62) via an oxidized section (OX) formed between the core molds (51, 61) and the peripheral molds (52, 62) by oxidizing the core molds (51, 61) when the core molds (51, 61) are inserted in the peripheral molds (52, 62).
Inventors:
ASHIDA SHUHEI (JP)
Application Number:
PCT/JP2013/073230
Publication Date:
March 06, 2014
Filing Date:
August 29, 2013
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
B29C33/38; B29D11/00
Foreign References:
| JP2010042653A | 2010-02-25 | |||
| JP2006137142A | 2006-06-01 | |||
| JPH1190964A | 1999-04-06 |
Attorney, Agent or Firm:
FUKUDA, MITSUHIRO (JP)
Mitsuhiro Fukuda (JP)
Mitsuhiro Fukuda (JP)
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