US 2012/0257288 A1 · Optical Lens Assembly for Image Capture

Abstract

An optical lens assembly for image capture, sequentially arranged from an object side to an image side, comprises: the first lens element with positive refractive power having a concave object-side surface and a convex image-side surface, the second lens element with negative refractive power having a concave object-side surfaces and a convex image-side surface, the third lens element with positive refractive power having a convex object-side surface and a concave image-side surface. Additionally, the optical lens assembly for image capture can satisfy several conditions. By such arrangements, the optical assembly for image capture can effectively correct the aberration and be applied to a compact image pickup device for image capturing.

Claims20

Dependent claims

An optical lens assembly for image capture, sequentially arranged from an object side to an image side, comprising:

a first lens element with positive refractive power, having a concave object-side surface and a convex image-side surface;
a second lens element with negative refractive power, having a concave object-side surface and a convex image-side surface;
and
a third lens element with positive refractive power, having a convex object-side surface and a concave image-side surface;
wherein f is a focal length of the optical lens assembly for image capture, f1 is a focal length of the first lens element, and the following relation is satisfied:
1.0<f/f1<1.9.

3 more elements

Dependencies are inferred from the claim text.

Optical Lens Assembly for Image Capture

Life of this patent

Optical Lens Assembly for Image Capture

Life of this patent

Abstract

Claims20