发明授权
US06765732B2 Optical pickup lens, molded optical component, handling method, and mold for optical component
失效
光学拾取镜头，模制光学部件，处理方法和用于光学部件的模具
- 专利标题： Optical pickup lens, molded optical component, handling method, and mold for optical component
- 专利标题（中）： 光学拾取镜头，模制光学部件，处理方法和用于光学部件的模具
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申请号： US10206187申请日： 2002-07-29
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公开(公告)号： US06765732B2公开(公告)日： 2004-07-20
- 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
- 优先权： JP2001-236797 20010803; JP2001-279636 20010914
- 主分类号： G02B302
- IPC分类号： G02B302
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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