US 2020/0264406 A1 · ZOOM LENS ASSEMBLY

Abstract

A zoom lens assembly may include lens elements, lens mounts, and an actuator. Each of the lens elements has an optical axis aligned to a common optical axis. At least one of the lens elements is a movable lens element and at least one of the lens elements is an aspheric lens element. Each of the lens elements has a lens diameter of 4 millimeters or less. The lens mounts are coupled to the lens elements and are configured to retain the lens elements in order. The actuator is coupled between the movable lens element and one of the lens mounts. The actuator is configured to selectively adjust an axial position of the movable lens element along the common optical axis. An optical zoom of the zoom lens assembly is at least 3×. A maximum axial length of the zoom lens assembly is less than 25 millimeters.

Claims20

Dependent claims

A zoom lens assembly, comprising:

a plurality of lens elements, each having an optical axis aligned to a common optical axis, wherein at least one of the plurality of lens elements comprises a movable lens element, at least one of the plurality of lens elements comprises an aspheric lens element, and each of the plurality of lens elements has a lens diameter of 4 millimeters or less;
a plurality of lens mounts coupled to the plurality of lens elements, the plurality of lens mounts configured to retain the plurality of lens elements in order;
and
an actuator coupled between the movable lens element and one of the plurality of lens mounts, the actuator configured to selectively adjust an axial position of the movable lens element along the common optical axis, wherein:
an optical zoom of the zoom lens assembly is at least 3×;
and
a maximum axial length of the zoom lens assembly is less than 25 millimeters.

4 more elements

Dependencies are inferred from the claim text.

Zoom lens assembly

Life of this patent

Zoom lens assembly

Life of this patent

Abstract

Claims20