A continuous zoom lens with linear motor and self-locking function

Abstract

The invention relates to the field of optical manufacturing technology, in particular to a continuous zoom lens with a linear motor and a self-locking function, including a moving lens, a scale, a reading head, a control circuit, a slider, a slide rail, a linear motor and a self-locking lens. Lock structure, the linear motor includes a stator and a mover, the stator includes a first magnet fixing plate and a second magnet fixing plate, the first magnet fixing plate and the second magnet fixing are provided with a magnet array, the first magnet fixing plate and the second magnet fixing There is a gap between the plates, one side of the stator is provided with an opening, and one side of the mover protrudes from the opening; the self-locking structure includes a locking motor, a rotating shaft, a magnet and a locking block, and the two sides of the locking block are arranged in parallel There is a magnetic guide sheet, and the rotating shaft is provided with a magnet. The invention adopts a scale and a reading head, reads the position information of the scale, and then obtains the position information of the moving lens, and the control circuit controls the running state of the linear motor according to the position information, thereby realizing closed-loop control of the up and down movement of the moving lens.

Description

Technical field [0001] The present invention relates to the field of optical manufacturing techniques, in particular, referring to a continuous variable phase lens with linear motors and self-locking functions. Background technique [0002] Continuous conversion lens is a lens of sustainable conversion focus, and the two or more lens groups in the optical system are linearly moved along the path to the optical design, and the combined focal length of the overall optical system is changed. It is widely used in biological, medical, industrial, biological, microelectronics processing and other fields. [0003] The existing continuous conversion lens is generally composed of a fixed mirror group and a moving mirror group, and the conventional moving mirror group changes the position by the human hand or moving the moving mirror group to the specified position through the curve barrel, but existing continuous The transform lens has the following shortcomings: the mobile mirror group m...

AI Technical Summary

Problems solved by technology

[0003] The existing continuous conversion lens is generally composed of a fixed lens group and a moving lens group. The traditional moving lens group adjusts the position manually or moves the moving lens group to a specified position through a curve tube to achieve a change in magnification or focal length. However, the existing continuous The conversion lens has the following disadvantages: the moving lens group moves frequently, the mechanical contact position accelerates wear, and shortens the service life

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