Title:
METHOD FOR PRODUCING MOLD
Document Type and Number:
WIPO Patent Application WO/2019/163630
Kind Code:
A1
Abstract:
Provided is a method for producing a mold for an optical element that produces an image with a clear boundary and that is composed of a first portion, which is a substantially flat surface, and a second portion, which is an optical structure for causing a ray of light to diffract, diffuse, or the like. This method for producing a mold for an optical element comprises: a step for forming, by resist patterning and etching, a first groove that has a substantially flat bottom surface having a width of 2 micrometers or more in a first region of a surface of a substrate; and a step for machining a second region that surrounds the first region in the surface of the substrate into a shape constituted of a surface that is not parallel to the bottom surface.
More Like This:
| JP2000326336 | MOLDING DIE AND MOLDING |
| WO/1995/021733 | NICKEL SHELL FOR MOLDS |
Inventors:
NISHIO YUKINOBU (JP)
IKEDA KATSUMOTO (JP)
TANIBE KENJI (JP)
YAMAMOTO KAZUYA (JP)
IKEDA KATSUMOTO (JP)
TANIBE KENJI (JP)
YAMAMOTO KAZUYA (JP)
Application Number:
PCT/JP2019/005312
Publication Date:
August 29, 2019
Filing Date:
February 14, 2019
Export Citation:
Assignee:
NALUX CO LTD (JP)
International Classes:
B29C33/38; B29C33/42; G02B3/00; G02B5/18
Domestic Patent References:
| WO2014076983A1 | 2014-05-22 |
Foreign References:
| JP2008159274A | 2008-07-10 | |||
| JP2003322707A | 2003-11-14 | |||
| JP2012203094A | 2012-10-22 |
Attorney, Agent or Firm:
FUSHIMI, Naoya (JP)
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