发明名称 Lens system for facsimile
摘要 A lens system for facsimile comprising a first positive lens component, a second biconcave lens component and a third lens component consisting of a negative lens element and a positive lens element, said lens system having high OTF and assuring very low distortion as well as high intensity for marginal rays.
申请公布号 US4264139(A) 申请公布日期 1981.04.28
申请号 US19790081904 申请日期 1979.10.04
申请人 OLYMPUS OPTICAL CO., LTD. 发明人 MAEDA, HARUO
分类号 G02B9/12;G02B9/20;G02B9/34;G02B13/24;(IPC1-7):G02B9/20 主分类号 G02B9/12
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