发明名称 PHOTOGRAPHING OPTICAL LENS ASSEMBLY
摘要 An photographing optical lens assembly includes, in order from an object side to an image side, a first lens element with positive refractive power, a second lens element with negative refractive power having a concave object-side surface and a concave image-side surface, a plastic third lens element with positive refractive power having a concave aspheric object-side surface and a convex aspheric image-side surface, a plastic fourth lens element with negative refractive power having a concave aspheric object-side surface and a convex aspheric image-side surface and a plastic fifth lens element having an aspheric object-side surface and an aspheric image-side surface. By adjusting the focal lengths of the second and the fourth lens element and the photographing optical lens assembly, and the curvature radii of the object-side and the image-side surface of the second lens element, the photographing optical lens assembly is miniaturized, and the image quality is improved.
申请公布号 US2013021678(A1) 申请公布日期 2013.01.24
申请号 US201113301440 申请日期 2011.11.21
申请人 LARGAN PRECISION CO., LTD.;TSAI TSUNG-HAN;CHOU MING-TA 发明人 TSAI TSUNG-HAN;CHOU MING-TA
分类号 G02B13/18 主分类号 G02B13/18
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