发明名称 IMAGING LENS, IMAGING APPARATUS PROVIDED WITH IMAGING LENS, AND PERSONAL COMMUNICATION DEVICE PROVIDED WITH IMAGING APPARATUS
摘要 An imaging lens, an imaging apparatus having the imaging lens, and a personal communication device having the imaging apparatus are provided to correct various aberrations satisfactorily, and to cope with an imaging device of a great number of pixels. An imaging lens(10) images light from a subject on an imaging device, and includes an aperture stop(S), a first lens(L1), a second lens(L2), a third lens(L3), and a fourth lens(L4) in order from an object. The first lens(L1) has a plus refractive force. The second lens(L2) has a minus refractive force, and a concave surface thereof faces an image side. The third lens(L3) has a plus refractive force. The fourth lens(L4) has a minus refractive force, and a concave surface thereof faces the image side. When the radius of curvature of the image side surface of the second lens(L2) is r4, and the focal distance of the imaging lens(10) is f, a formula: 0.2<r4/f=0.52 is satisfied.
申请公布号 KR20070101776(A) 申请公布日期 2007.10.17
申请号 KR20070034725 申请日期 2007.04.09
申请人 KONICA MINOLTA OPTO, INC. 发明人 FUKUTA YASUNARI;YAMAGUCHI SUSUMU
分类号 G02B9/34;G02B13/18;H04B1/40 主分类号 G02B9/34
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