Title:
METHOD FOR PRODUCING WAFER LENS
Document Type and Number:
WIPO Patent Application WO/2012/060342
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a method that is for producing a wafer lens and that can precisely form a lens unit from a resin transfer mold, even if a photocurable resin is used for forming the lens unit or the resin transfer mold that is a sub-sub-master mold or the like. If the photoinitiator of the photocurable resin of a first and second resin layer (102, 103) has a low sensitivity, the light transmittance of the thickness of the sub-sub-master mold (50) is made relatively higher, and if the photoinitiator of the photocurable resin of the first and second resin layer (102, 103) has a high sensitivity, the light transmittance of the thickness of the sub-sub-master mold (50) is made relatively lower, and so the appropriate amount of light is transmitted for curing the photocurable resin of the first and second resin layers (102, 103). As a result, a first and second optical surface (11d, 12d) can be precisely transferred. Also, since more light than needed is not radiated, it is possible to prevent yellowing of the resin and a deleterious effect on durability in environmental tests and the like.
Inventors:
HARA AKIKO (JP)
Application Number:
PCT/JP2011/075111
Publication Date:
May 10, 2012
Filing Date:
October 31, 2011
Export Citation:
Assignee:
KONICA MINOLTA OPTO INC (JP)
HARA AKIKO (JP)
HARA AKIKO (JP)
International Classes:
B29C39/26; B29C33/38; B29C39/24; G02B1/04; G02B3/00; B29L11/00
Foreign References:
| JP2010105357A | 2010-05-13 | |||
| JP2001194521A | 2001-07-19 | |||
| JPH01163027A | 1989-06-27 |
Attorney, Agent or Firm:
FUKUDA, MITSUHIRO (JP)
Mitsuhiro Fukuda (JP)
Mitsuhiro Fukuda (JP)
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Claims:
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