Title:
MOLDING DIE AND METHOD FOR MANUFACTURING OPTICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2011/122201
Kind Code:
A1
Abstract:
A local gap (GA) is provided between connection surfaces, that is, the front surface (24e) of a spacer (24) and the back surface (21f) of the core part (21), which are disposed between a core part (21) and a support member (22), thereby making it possible to elastically distort and deform the core part (21) using the gap (GA) provided between the core part (21) and the support member (22) and adjust the amount of distortion of the core part (21) using a fastening state by a fixing member (23). At this time, since the core part (21) is rarely distorted in the direction perpendicular to the direction in which the core part is distorted and deformed, the directions and amounts of astigmatism of an optical surface formation surface (56a) that is an optical surface transfer surface, and the like can be fine adjusted. In other words, the directions and amounts of astigmatism of the optical surface formation surface (56a) that is the optical surface transfer surface, and the like can be adjusted after the fact without producing the core part (21) again.
Inventors:
NAKAYAMA Keisuke (Inc. 2970, Ishikawa-machi, Hachioji-sh, Tokyo 05, 〒1928505, JP)
Application Number:
JP2011/054585
Publication Date:
October 06, 2011
Filing Date:
March 01, 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:
B29C33/76; B29C45/36; B29L11/00
Claims: