发明名称 Wide-angle lens and imaging apparatus
摘要 Providing a large aperture wide-angle lens having high optical performance with sufficiently suppressed spherical aberration and sagittal coma flare, and an imaging apparatus using the lens. The lens including, in order from an object, a first lens group having positive refractive power, and a second lens group having positive refractive power, the second lens group being movable for focusing and including a 21 lens component having positive refractive power, a 22 lens component having negative refractive power, a 23 lens component having positive refractive power, and a 24 lens component having positive refractive power, and given conditions being satisfied.
申请公布号 US7663816(B2) 申请公布日期 2010.02.16
申请号 US20080186477 申请日期 2008.08.05
申请人 NIKON CORPORATION 发明人 SATO HARUO
分类号 G02B9/04 主分类号 G02B9/04
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