Folding and super mixed achromatic lens, camera module and terminal equipment

By using a hybrid achromatic lens design combining aspherical and superlenses, along with metasurface structures and apertures, the high and low temperature reliability and chromatic aberration issues of mobile phone lenses are solved, achieving miniaturized, high-quality achromatic effect.

CN120949427APending Publication Date: 2025-11-14HANGZHOU NAJING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511387525.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

Existing mobile phone lens materials have a large coefficient of thermal expansion, poor reliability at high and low temperatures, and difficulty in representing color differences, making it difficult to meet the requirements of simple structure, miniaturization, and ultra-thin high image quality.

Method used

The achromatic lens employs a hybrid refractive-superconducting design, including aspherical lenses and superlenses, combined with metasurface structures. It corrects chromatic aberration by rationally allocating phase, and optimizes optical performance using plastic materials and apertures.

Benefits of technology

It achieves high and low temperature reliability and stability as well as ultra-low chromatic aberration performance, meeting the high image quality requirements of mobile phone lenses in the wavelength range of 435nm-650nm, and is small in size and low in cost.

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Abstract

The invention relates to a refraction and super hybrid achromatic lens, a camera module and a terminal device, and belongs to the field of optical lenses, the refraction and super hybrid achromatic lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged from an object plane to an image plane along an optical axis; the first lens is an aspheric lens, the second lens is a super lens, the third lens is an aspheric lens, the fourth lens is an aspheric lens, and the fifth lens is an aspheric lens. According to the invention, only the combination of one super lens and four plastic lenses is adopted, and the achromatic characteristic of the super lens is utilized, so that the effect of low chromatic aberration of the visible light wave band is achieved while high image quality presentation is maintained.
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