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, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The positive first lens element has a convex object-side surface. The second and the third lens elements have refractive power. The fourth lens element has positive refractive power. The negative fifth lens element has a convex object-side surface, a concave image-side surface, and at least one inflection point on at least one surface thereof, wherein the surfaces of the fifth lens element are aspheric. The negative sixth lens element has a concave image-side surface and at least one inflection point on at least one surface thereof, wherein the surfaces of the sixth lens element are aspheric. The photographing lens assembly has a total of six lens elements with refractive power.
申请公布号 US2014254029(A1) 申请公布日期 2014.09.11
申请号 US201313849556 申请日期 2013.03.25
申请人 LARGAN PRECISION CO., LTD. 发明人 HSU Po-Lun;TSAI Tsung-Han;HUANG Hsin-Hsuan
分类号 G02B13/18 主分类号 G02B13/18
代理机构 代理人
主权项 1. A photographing lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element having refractive power; a third lens element having refractive power; a fourth lens element having positive refractive power; a fifth lens element with negative refractive power having a convex object-side surface and a concave image-side surface, wherein the object-side surface and the image-side surface of the fifth lens element are aspheric, and the fifth lens element has at least one inflection point on at least one of the object-side surface and the image-side surface thereof; and a sixth lens element with negative refractive power having a concave image-side surface, wherein an object-side surface and the image-side surface of the sixth lens element are aspheric, and the sixth lens element has at least one inflection point on at least one of the object-side surface and the image-side surface thereof; wherein the photographing lens assembly has a total of six lens elements with refractive power, a focal length of the fifth lens element is f5, a focal length of the sixth lens element is f6, an axial distance between the object-side surface of the first lens element and the image-side surface of the sixth lens element is TD, a maximum image height of the photographing lens assembly is Y, an axial distance between the image-side surface of the sixth lens element and an image plane is BL, and the following relationships are satisfied: 0<f6/f5<1.2; and(TD/Y)+(BL/Y)<1.65.
地址 Tiachung City TW