发明授权
- 专利标题: Achromatic objective lens
- 专利标题(中): 消色差物镜
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申请号: US954032申请日: 1978-10-23
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公开(公告)号: US4190324A公开(公告)日: 1980-02-26
- 发明人: Yasunori Arai
- 申请人: Yasunori Arai
- 申请人地址: JPX Tokyo
- 专利权人: Asahi Kogaku Kogyo Kabushiki Kaisha
- 当前专利权人: Asahi Kogaku Kogyo Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX52-126578 19771021
- 主分类号: G02B9/12
- IPC分类号: G02B9/12 ; G02B9/16 ; G02B13/00
摘要:
An achromatic objective lens having an aperture ratio of about 1:12 and a viewing angle of about .+-.1.degree. for use in an astronomical telescope is disclosed. The lens uses conventionally available optical materials matched to produce optimum compensation of various aberrations.
公开/授权文献
- US5266511A Process for manufacturing three dimensional IC's 公开/授权日:1993-11-30
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