发明名称 Photographic lens
摘要 A compact photographic lens for a digital camera is disclosed. The photographic lens has only two lens elements, yet provides excellent imaging even at the periphery of the image field. The photographic lens of the invention and an image sensor, together, fit within a volume of about 10 cm3 The lens is formed of, in order from the object side, a biconvex lens element having two aspherical surfaces, and a positive meniscus lens element having two aspherical surfaces. The convex surface of the meniscus lens element is positioned on the image side, and various conditions are satisfied in order to provide the photographic lens with a short overall length while favorably correcting various aberrations.
申请公布号 US2003117723(A1) 申请公布日期 2003.06.26
申请号 US20020225358 申请日期 2002.08.22
申请人 SHINOHARA YOSHIKAZU 发明人 SHINOHARA YOSHIKAZU
分类号 G02B9/04;G02B13/00;G02B13/18;(IPC1-7):G02B3/02;G02B9/06 主分类号 G02B9/04
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