Title:
DIE
Document Type and Number:
WIPO Patent Application WO/2011/122174
Kind Code:
A1
Abstract:
Disclosed is a die that has the following: a surface treatment layer (SM) having a concave, curved surface (SM1) for transfer molding an optical surface of an objective lens (OBJ), a base material (BD) having a supporting surface (BD1) that corresponds to the concave, curved surface (SM1) and which is for supporting the surface treatment layer (SM), and a heat insulating layer (HI) disposed between the surface treatment layer (SM) and the base material (BD). Therefore, it is possible to approach uniformity in the thickness of the heat-insulating layer (HI). Furthermore, because the thermal conductivity of the heat-insulating layer (HI) is lower than that of the surface treatment layer (SM), the cooling speed of the molding material in contact with the surface treatment layer (SM) can be made uniform. Hence, highly accurate transfer of the optical surface of the objective lens (OBJ) can be performed.
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Inventors:
ISHII Kenichi (Inc. 2970, Ishikawa-machi, Hachioji-sh, Tokyo 05, 〒1928505, JP)
Application Number:
JP2011/053805
Publication Date:
October 06, 2011
Filing Date:
February 22, 2011
Export Citation:
Assignee:
Konica Minolta Opto, Inc. (2970, Ishikawa-machi Hachioji-sh, Tokyo 05, 〒1928505, JP)
コニカミノルタオプト株式会社 (〒05 東京都八王子市石川町２９７０番地 Tokyo, 〒1928505, JP)
コニカミノルタオプト株式会社 (〒05 東京都八王子市石川町２９７０番地 Tokyo, 〒1928505, JP)
International Classes:
B29C45/37; B29C33/38; B29L11/00
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Claims: