Photographing optical lens assembly
AssigneeLargan Precision Co., Ltd.
InventorTzu-Chieh KUO
Life of this patent
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Abstract
A photographing optical lens assembly includes eight lens elements, the eight lens elements being, 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, a sixth lens element, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface facing towards the object side and an image-side surface facing towards the image side. At least one surface of the object-side surface and the image-side surface of at least one lens element of the photographing optical lens assembly is aspheric and includes at least one inflection point.
Claims20
A photographing optical lens assembly comprising eight lens elements, the eight lens elements being, 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, a sixth lens element, a seventh lens element and an eighth lens element;
- each of the eight lens elements has 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 negative refractive power;
- the object-side surface of the fifth lens element is concave in a paraxial region thereof;
- the eighth lens element has negative refractive power, and the image-side surface of the eighth lens element comprises at least one critical point in an off-axis region thereof;
- wherein a half of a maximum field of view of the photographing optical lens assembly is HFOV, an axial distance between the object-side surface of the first lens element and an image surface is TL, and the following conditions are satisfied:
- 55.0 degrees<HFOV;
- and
- 1.0 mm<TL<12.0 mm.
A photographing optical lens assembly comprising eight lens elements, the eight lens elements being, 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, a sixth lens element, a seventh lens element and an eighth lens element;
- each of the eight lens elements has an object-side surface facing towards the object side and an image-side surface facing towards the image side;
- wherein the object-side surface of the fifth lens element is concave in a paraxial region thereof;
- the eighth lens element has negative refractive power, and the image-side surface of the eighth lens element comprises at least one critical point in an off-axis region thereof;
- wherein a half of a maximum field of view of the photographing optical lens assembly is HFOV, an axial distance between the object-side surface of the first lens element and an image surface is TL, a focal length of the photographing optical lens assembly is f, and the following conditions are satisfied:
- 55.0 degrees<HFOV;
- 1.0 mm<TL<12.0 mm;
- and
- 1.70<TL/f<12.0.
Dependencies are inferred from the claim text.