Imaging optical lens

Through the optimized design of the seven-lens structure, the aberration and distortion problems in the design of miniaturized camera lenses with large aperture, wide angle and ultra-thin design have been solved, realizing a camera optical lens with high imaging quality, which is especially suitable for mobile phone and web camera lenses with high pixel image sensor.

WO2026143690A1PCT designated stage Publication Date: 2026-07-09CHANGZHOU RAYTECH OPTRONICS CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
CHANGZHOU RAYTECH OPTRONICS CO LTD
Filing Date
2025-01-06
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

Existing camera optical lenses struggle to achieve good image quality under miniaturization requirements, especially with the demands of large aperture, wide-angle, and ultra-thin designs, making it difficult to adequately correct aberrations and distortions.

Method used

Employing a seven-lens structure, by optimizing parameters such as the radius of curvature, focal length, Abbe number, and on-axis distance of each lens to satisfy specific relationships, the shape and spacing of the lenses are controlled to reduce aberrations and distortions, achieving a large aperture, wide-angle, and ultra-thin design.

Benefits of technology

It has achieved a camera lens with excellent optical performance, suitable for mobile phone camera lenses and WEB camera lenses with high pixel image sensors, and has low distortion and high image quality.

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  • Figure CN2025070661_09072026_PF_FP_ABST
    Figure CN2025070661_09072026_PF_FP_ABST
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Abstract

The present application relates to the field of optical lenses. Disclosed is an imaging optical lens, comprising seven lenses in total, which are, sequentially from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens, wherein a central radius of curvature of an object-side surface of the third lens is defined as R5, a central radius of curvature of an image-side surface of the third lens is defined as R6, a central radius of curvature of an object-side surface of the fifth lens is defined as R9, a central radius of curvature of an image-side surface of the fifth lens is defined as R10, a focal length of the first lens is defined as f1, a focal length of the second lens is defined as f2, a focal length of the sixth lens is defined as f6, a focal length of the seventh lens is defined as f7, an on-axis distance from an image-side surface of the first lens to an object-side surface of the second lens is defined as d2, an on-axis distance from an image-side surface of the sixth lens to an object-side surface of the seventh lens is defined as d12, an Abbe number of the first lens is defined as v1, and an Abbe number of the second lens is defined as v2, satisfying the following relational expressions: 1.10≤R9 / R10≤1.90, 1.50≤(R5+R6) / (R5-R6)≤2.80, 17.00≤(f6-f7) / d12≤20.00, and 0.17≤(v1-v2)*d2 / (f1-f2)≤0.32.
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