A zoom lens assembly, zoom lens and zoom method

Abstract

The invention discloses a zoom lens assembly, a zoom lens, and a zooming method. The zoom lens assembly and the zoom lens comprise a plurality of fixed lenses and a plurality of switching lenses. Theoptical axis of the fixed lens is coaxial, and the optical axis of the switching lens is parallel to the optical axis of the fixed lens. The switching lenses are distributed on different planes alongthe optical axis direction of the fixed lens in a back-and-forth manner, and can move on the planes, so that the optical axis can align with the optical axis of the fixed lens. The zoom lens assemblyand the zoom lens can have the optical zooming function, and the optical zooming is wide in scope and large in multiple, and miniaturization and lightness can be realized.

Description

technical field [0001] The invention relates to the field of imaging, in particular to a zoom lens assembly, a zoom lens and a zoom method. Background technique [0002] At present, the camera functions of mobile phone cameras are becoming more and more powerful, but the imaging quality has not been able to truly reach the level of professional cameras. The optical zoom solution is not suitable for mobile phones, tablets and other products that pursue thinner and lighter products. [0003] A patent document with the publication number CN108182499A discloses a compact zoom lens with switchable focal length and a zoom method. The optical lens switching panel is rotated to switch the switching lens behind the first fixed optical lens to realize the optical zoom function. [0004] But all switching mirrors of this zoom lens are all on the same plane, can only use one switching mirror to carry out imaging, and there is following defect in this scheme: 1, the range of optical zo...

AI Technical Summary

Problems solved by technology

[0004] But all switching mirrors of this zoom lens are all on the same plane, can only use one switching mirror to carry out imaging, and there is following defect in this scheme: 1, the range of optical zoom is narrower, if this zoom lens only has three switching mirrors , then only optical zoom with three focal lengths can be realized; 2. The multiples of optical zoom are small, only 1.2 times, 1.4 times, etc. It is also difficult to realize; 3, the volume is too large, each switching lens needs to occupy the area of ​​one lens at least, and at least two switching lenses need to be set on the optical lens switching panel, plus the area of ​​the optical lens switching panel itself and the switching Although the space occupied by the mechanism can greatly reduce the thickness in the direction of the optical axis, the width on the vertical plane of the optical axis will become very large, and the actual volume will be larger than imagined, and the purpose of thinning and thinning cannot be achieved at all.

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