US 9,310,588 B2Granted

Six-piece optical lens for capturing image and six-piece optical modules for capturing image

AssigneeAbility Opto-Electronics Technology Co., Ltd.

InventorKuo-Yu Liao

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Abstract

The invention discloses a six-piece optical lens for capturing image and a six-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens element having a convex object-side surface and a convex image-side surface; a second lens element having a convex object-side surface and a concave image-side surface; a third lens element with positive refractive power having a convex object-side surface and a convex image-side surface; a fourth lens element with refractive power; a fifth lens element having a convex image-side surface; and a sixth lens element having a concave image-side; and at least one of the image-side surface and object-side surface of each of the six lens elements are aspheric. The optical lens can reduce the sensitivity for use in compact cameras with camera functionalities.

Claims12

Dependent claims

A six-piece optical lens for capturing image, in order from an object side to an image side, the optical lens along an optical axis comprising:

a first lens element having a convex image-side surface and a convex object-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the first lens element is aspheric;
a second lens element having a concave image-side surface and a convex object-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the second lens element is aspheric;
a third lens element with positive refractive power having a convex object-side surface and a convex image-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the third lens element is aspheric;
a fourth lens element with refractive power near the optical axis, wherein at least one of the object-side and the image-side surfaces of the fourth lens element is aspheric;
a fifth lens element having a convex image-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the fifth lens element is aspheric;
and
a sixth lens element having a concave image-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the sixth lens element is aspheric;
wherein a focal length of the six-piece optical lens for capturing image is f, a distance along the optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element is FL, and the following relationship is satisfied:
0.7<FL/f<1.1.

6 more elements

A six-piece optical module for capturing image, in order from an object side to an image side, the optical lens along an optical axis comprising:

a first lens element having a convex image-side surface and a convex object-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the first lens element is aspheric;
a second lens element having a concave image-side surface and a convex object-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the second lens element is aspheric;
a third lens element with positive refractive power having a convex object-side surface and a convex image-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the third lens element is aspheric;
a fourth lens element with refractive power near the optical axis, wherein at least one of the object-side and the image-side surfaces of the fourth lens element is aspheric;
a fifth lens element having a convex image-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the fifth lens element is aspheric;
and
a sixth lens element having a concave image-side surface near the optical axis, wherein at least one of the object-side and the image-side surfaces of the sixth lens element is aspheric;
an image sensor disposed on an image-plane for imaging an object to be imaged;
and
an aperture stop disposed between the object and the second lens element;
wherein a focal length of the six-piece optical module for capturing image is f, a distance along the optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element is FL, and the following relationship is satisfied:
0.7<FL/f<1.1.

9 more elements

Dependencies are inferred from the claim text.