发明名称 PHOTOGRAPHING LENS ASSEMBLY
摘要 A photographing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex at a paraxial region. The second lens element with negative refractive power has an object-side surface being concave at a paraxial region and an image-side surface being concave or planar at a paraxial region, wherein the second lens element is made of plastic material and the surfaces thereof are aspheric. The third lens element with negative refractive power has an object-side surface being concave at a paraxial region, and an image-side surface being concave at a paraxial region and being convex at a peripheral region, wherein the third lens element is made of plastic material, and the surfaces thereof are aspheric.
申请公布号 US2013279025(A1) 申请公布日期 2013.10.24
申请号 US201213647401 申请日期 2012.10.09
申请人 LARGAN PRECISION CO., LTD. 发明人 TSAI TSUNG-HAN;CHEN WEI-YU
分类号 G02B13/18;G02B9/12 主分类号 G02B13/18
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