WAFER LENS MANUFACTURING METHOD, SHAPING METAL MOLD, TRANSFER MOLD, AND TRANSFER MOLD MANUFACTURING METHOD

WIPO Patent Application WO/2012/161316

A1

The purpose of the present invention is to provide a wafer lens manufacturing method that prevents warping of a resin mold due to the stress that arises during resin curing, and prevents lack of uniformity in lens shape. A master mold (30) has a first uneven structure (32), and as a result, a sub-master mold (40) and a sub sub-master mold (50), which are transfer molds formed from the master mold (30), have recesses (44a, 54a) at the outermost portion between adjacent second and third optical transfer surfaces (43a, 53a). With this configuration, in each of the molding steps using the master mold (30), the sub-master mold (40), and the sub sub-master mold (50), resin can be prevented from infiltrating outermost recesses (32a, 44a, 54a), and each of second and third transfer parts (49, 59) and first and second lens elements (11, 12) can be molded in a state where each is independent and not connected with each other.

WATANABE DAISUKE (JP)
KOJIMA SUSUMU (JP)
IMAI TOSHIYUKI (JP)
MIZUKANE TAKAHIRO (JP)
FUJII YUITI (JP)
TOMINAMI TOHRU (JP)
YAMAMOTO SHINICHI (JP)

PCT/JP2012/063499

November 29, 2012

May 25, 2012

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KONICA MINOLTA ADVANCED LAYERS (JP)
WATANABE DAISUKE (JP)
KOJIMA SUSUMU (JP)
IMAI TOSHIYUKI (JP)
MIZUKANE TAKAHIRO (JP)
FUJII YUITI (JP)
TOMINAMI TOHRU (JP)
YAMAMOTO SHINICHI (JP)

B29C39/26; B29C39/02; G02B3/00; B29L11/00

WO2010143466A1

2010-12-16

JP2009226631A

2009-10-08

FUKUDA, MITSUHIRO (JP)
Mitsuhiro Fukuda (JP)

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