US 2025/0155667 A1 · LENS BARREL, AND OPTICAL DEVICE

Abstract

A lens barrel 100 can quickly avoid collisions between moving lens frames having overlapping regions within their movement ranges at the time of a reset drive using a simple configuration, and has moving lens frames 101, and 102 that have overlapping regions OL in their movement ranges M1, and M2; drive units 103, and 104 that move the moving lens frames 101, and 102 in an optical axis direction O; a detection unit 130 configured to detect reference positions P1, and P3 of the moving lens frames 101, and 102; and a control unit J configured to perform a reset drive that moves the moving lens frames 101, and 102 to reference positions P1, and P3, wherein the control unit C changes reset drive conditions for the moving lens frames 101, and 102 based on outputs from the detection unit 130.

Claims17

Dependent claims

A lens barrel comprising:

a first moving lens frame and a second moving lens frame, wherein there are overlapping regions in a movement range of the first moving lens frame and a movement range of the second moving lens frame;
a drive unit configured to move the first moving lens frame in an optical axis direction and to move the second moving lens frame in the optical axis direction;
a detection unit configured to detect a reference position of the first moving lens frame and a reference position of the second moving lens frame;
and
a control unit configured to perform a reset drive in which the first moving lens frame is moved to the reference position of the first moving lens frame and the second moving lens frame is moved to the reference position of the second moving lens frame;
wherein
the control unit changes reset drive conditions for the first moving lens frame or the second moving lens frame based on outputs from the detection unit.

4 more elements

Dependencies are inferred from the claim text.

Lens barrel, and optical device

Life of this patent

Lens barrel, and optical device

Life of this patent

Abstract

Claims17