Two-constituent optical compensation zoom lens

Abstract

The invention discloses a two-constituent optical compensation zoom lens comprising a main cylinder component, a front component and a rear component, wherein the front component comprises a front lens tube, a front press ring and a compensation lens group; and the rear component comprises a rear lens tube, space rings, rear press rings and a zoom lens group. The compensation lens group and the zoom lens group have nine lenses which comprise at least three balsaming lenses. The total focal power of the compensation lens group is negative, and the total focal power of the zoom lens group is positive. The front component and the rear component move in the main cylinder component, so that the focal range changes of the complete lens can be adjusted by changing the opposite positions of the compensation lens group and the zoom lens group and mutually compensating image surfaces. An assembling method of the two-constituent optical compensation zoom lens in the invention comprises the following nine steps: assembling six optical lenses; assembling two the space rings, and assembling two press rings. Compared with the same class of the lens, the assembling steps of the two-constituent optical compensation zoom lens are reduced to be nine steps, so that the efficiency is doubled, the manufacturing error is reduced, the optical stability is improved, the image quality yield is greatly improved, and the application range is wide.

Description

technical field [0001] The patented technology belongs to the field of optomechanical integration, and relates to a two-element optical compensation zoom lens, in particular to a compactly assembled two-element optical compensation zoom lens. technical background [0002] With the continuous improvement of security awareness and automation, the demand for surveillance lenses is also increasing, and the manpower and material resources spent on lens assembly are also increasing. In the current environment where automatic assembly cannot be realized, the number of lens optical components and The number of matched mechanical components directly affects the assembly efficiency of operators; the stability of the cooperation between optical components and mechanical components directly affects the qualified rate of assembled products. Therefore, under the existing conditions of manual assembly, the optical path of the optical lens is designed to be as simple and compact as possible...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of security awareness and automation, the demand for surveillance lenses is also increasing, and the manpower and material resources spent on lens assembly are also increasing. In the current environment where automatic assembly cannot be realized, the number of lens optical components and The number of matched mechanical components directly affects the assembly efficiency of operators; the stability of the cooperation between optical components and mechanical components directly affects the qualified rate of assembled products

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