Photographing optical lens assembly, image capturing apparatus and electronic device
AssigneeLargan Precision Co., Ltd.
InventorsCheng-Chen LIN, Hsin-Hsuan HUANG, Shu-Yun YANG
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Abstract
A photographing optical lens assembly includes, in order from an object side to an image side along an optical axis, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The second lens element has negative refractive power. The third lens element has an object-side surface being convex in a paraxial region thereof.
Claims27
A photographing optical lens assembly for telephoto comprising five lens elements, the five lens elements being, in order from an object side to an image side along an optical axis:
- a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element;
- each of the five lens elements having an object-side surface facing towards the object side and an image-side surface facing towards the image side;
- wherein the first lens element has positive refractive power;
- the third lens element has the image-side surface being concave in a paraxial region thereof;
- at least one of the object-side surface and the image-side surface of at least one of the lens elements is aspheric and comprises at least one inflection point;
- wherein a sum of axial distances between each of adjacent lens elements of the photographing optical lens assembly is ΣAT, an axial distance between the image-side surface of the fifth lens element and an image surface is BL, a refractive power of the first lens element is P1, a refractive power of the second lens element is P2, a refractive power of the third lens element is P3, a refractive power of the fourth lens element is P4, a half of a maximum field of view of the photographing optical lens assembly is HFOV, and the following conditions are satisfied:
- 0<ΣAT/BL<0.50;
- |P4|<|P1|;
- |P3|<|P2|;
- and
- |tan(HFOV)|≤0.29.
A photographing optical lens assembly for telephoto comprising five lens elements, the five lens elements being, in order from an object side to an image side along an optical axis:
- a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element;
- each of the five lens elements having an object-side surface facing towards the object side and an image-side surface facing towards the image side;
- wherein the first lens element with positive refractive power has the object-side surface being convex in a paraxial region thereof;
- at least one of the object-side surface and the image-side surface of at least one of the lens elements is aspheric and comprises at least one inflection point;
- wherein a sum of axial distances between each of adjacent lens elements of the photographing optical lens assembly is ΣAT, an axial distance between the image-side surface of the fifth lens element and an image surface is BL, a refractive power of the first lens element is P1, a refractive power of the second lens element is P2, a refractive power of the third lens element is P3, a refractive power of the fourth lens element is P4, a half of a maximum field of view of the photographing optical lens assembly is HFOV, a focal length of the first lens element is f1, a central thickness of the second lens element is CT2, and the following conditions are satisfied:
- 0<ΣAT/BL<0.50;
- |P4|<|P1|;
- |P3|<|P2|;
- |tan(HFOV)|≤0.29;
- and
- 0<f1/CT2<5.50.
Dependencies are inferred from the claim text.