Self-locking structure of zoom lens, zoom lens and camera

Abstract

The invention discloses a self-locking structure of a zoom lens, the zoom lens and a camera, the self-locking structure of the zoom lens comprises a lens barrel, a mobile carrier, a self-locking mechanism and a driving mechanism; the lens barrel is provided with an inner cavity; the mobile carrier is movably installed in the inner cavity along the length direction of the lens cone. The self-locking mechanism comprises a locking part arranged in the inner cavity of the lens barrel and a matching part arranged on the mobile carrier, the locking part is movably arranged so as to be matched with the matching part for locking or separating, and when the locking part is locked with the matching part, the movement of the mobile carrier on the lens barrel is limited; and the driving mechanism drives the locking part to move, so that the driving mechanism is utilized to realize locking and unlocking of the self-locking mechanism, the operation is simple, the lens is prevented from being damaged, the failure rate is reduced, and the service life of the lens is prolonged.

Description

technical field [0001] The invention relates to the technical field of photography equipment, in particular to a self-locking structure of a zoom lens, a zoom lens and a video camera. Background technique [0002] In the optical zoom lens based on VCM motor (Voice Coil Motor), the mobile carrier is in the lens barrel, and two parallel guide shafts are fixed in the lens barrel. limited by the dead point. The power source for moving the mobile carrier is the VCM motor. The mover and the stator of the VCM motor are non-contact. When the coil is not energized, the VCM motor cannot self-lock. At this time, the moving carrier driven by the VCM motor in the lens moves along the The guide shaft is in a completely free state between the front and rear mechanical dead points and can slide freely. Then, in the process of transportation or moving, it is inevitable that the mobile carrier in the lens barrel will slide freely within the range of the front and rear mechanical dead points...

AI Technical Summary

Problems solved by technology

Then, in the process of transportation or moving, it is inevitable that the mobile carrier in the lens barrel will slide freely within the range of the front and rear mechanical dead points, so that the hard impact on the front and rear dead points may cause the lens to be smashed, the black object mechanism to break and other lens damage adverse consequences, seriously affecting the imaging and performance of the lens

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