发明授权
- 专利标题: Molded optical component, handling method, and assembling method
- 专利标题(中): 成型光学部件,处理方法和组装方法
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申请号: US10685464申请日: 2003-10-16
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公开(公告)号: US06894849B2公开(公告)日: 2005-05-17
- 发明人: Shogo Yamamoto , Hiroyuki Hattori , Etsuzo Kurihara , Shinichiro Saito , Takashi Matsumaru , Taichiro Saito , Kazuo Ishida , Yuichi Atarashi , Norikazu Arai
- 申请人: Shogo Yamamoto , Hiroyuki Hattori , Etsuzo Kurihara , Shinichiro Saito , Takashi Matsumaru , Taichiro Saito , Kazuo Ishida , Yuichi Atarashi , Norikazu Arai
- 申请人地址: JP Tokyo
- 专利权人: Konica Corporation
- 当前专利权人: Konica Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权: JP2001-236797 20010803; JP2001-279636 20010914
- 主分类号: B29C45/27
- IPC分类号: B29C45/27 ; B29D11/00 ; C03B11/08 ; G02B3/04 ; G11B7/135 ; G11B7/22 ; G11B11/105 ; G02B7/02 ; G02B3/00
摘要:
An objective lens for use in an optical pickup apparatus for conducting recording and/or reproducing information for an optical information recording medium, has a lens section shaped in an approximate circle and including a flange section; and a connecting section integrally provided to the lens section. The objective lens satisfies the following conditional formulas: 0.5≦A≦2.0, 0.3A≦B≦1.7A where A is a diameter of the lens section when the lens section is viewed from an direction of an optical axis, and B is a width of the connecting section when the connecting section is viewed from the direction of the optical axis.
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