Lens radial gap adjusting mechanism

Abstract

The invention provides a lens radial gap adjusting mechanism. The adjusting mechanism comprises an adjusting device, one end of the adjusting device penetrates through a lens cone and a sliding sleeveof a lens and then is connected with a lens frame, and the other end of the adjusting device is exposed out of the lens cone and can drive the lens frame to move in the radial direction after force is applied to the end of the adjusting device. The adjusting device is installed on the lens cone, force is applied to the adjusting device from the outside to drive the lens frame to move, and the gapbetween the lens frame and the sliding sleeve can be adjusted, so the imaging effect is guaranteed; and adjustment is conducted through a mechanical structure, so the problem that at present, the imaging effect cannot be guaranteed due to the fact that the fit clearance between the lens frame and the sliding sleeve depends on machining precision is solved.

Description

technical field [0001] The invention relates to the technical field of optical lenses, in particular to a lens radial gap adjustment mechanism. Background technique [0002] With the development of modern optical technology, continuous zoom lenses have been widely used in the field of security monitoring. At present, the imaging effect and quality of the zooming and focusing process of the lens need to be improved, and the key parts need to be realized by mechanical structures. [0003] At present, most of the structure of zooming and focusing parts adopts cam mechanism. The gear on the lens barrel drives the sliding sleeve to rotate through the driving rod installed on the sliding sleeve, and the cam curve groove on the sliding sleeve drives the guide stud on the mirror frame. Moving back and forth along the linear groove of the lens barrel realizes the front and rear position movement of the lens, ensuring that the continuous zoom lens can achieve clear imaging of the tar...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the present invention provides a lens radial gap adjustment mechanism to solve the current problem that only relying on the accuracy of machining to ensure the matching gap between the mirror frame and the sliding sleeve cannot guarantee the imaging effect

By installing an adjustment device on the lens barrel, and applying force to the adjustment device from the outside to drive the lens frame to move, the gap between the lens frame and the sliding sleeve can be adjusted to ensure the imaging effect, and it can be adjusted through the mechanical structure , which solves the problem that the current matching gap between the frame and the sliding sleeve cannot guarantee the imaging effect by relying on the precision of machining

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