Periscopic telephoto lens module

By using a periscope telephoto lens structure and lens combination, the problems of short focal length, small aperture, large size, long focusing distance and severe chromatic aberration of existing mobile phone telephoto lenses have been solved, achieving the effects of longer focal length, larger aperture, stronger focusing ability and higher image quality.

CN121832054APending Publication Date: 2026-04-10TIANJIN POLYTECHNIC UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing mobile phone telephoto lenses have short focal lengths, small apertures, large sizes, long focusing distances, and severe chromatic aberration, resulting in poor image quality.

Method used

It adopts a periscope telephoto lens structure, which increases focusing ability and reduces focusing distance by rationally allocating the optical power and materials of the lens group. It also uses high-precision guide rails and motor control to achieve accurate focusing, and combines plastic and glass lenses to correct aberrations and chromatic aberrations.

Benefits of technology

It achieves a telephoto lens design with longer focal length, larger aperture, stronger focusing ability, higher image quality, reduced aberrations and chromatic aberration, and smaller size.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121832054A_ABST
    Figure CN121832054A_ABST
Patent Text Reader

Abstract

The invention discloses a periscopic telephoto lens module, and belongs to the technical field of optical lenses. The periscopic telephoto lens comprises a first lens group, a second lens group and a third lens group which are arranged from an object side to an image side, the first lens group and the third lens group are fixed groups, and the second lens group is a focusing group; the second lens group is composed of an aspherical lens and a doublet lens. In the process of switching the periscopic telephoto lens from the distant view to the close view, the second lens group moves towards the object side along the optical axis. The periscopic telephoto lens is high in focusing capability, long in focal length, small in chromatic aberration and high in imaging quality.
Need to check novelty before this filing date? Find Prior Art