Imaging optical lens
By optimizing parameters such as focal length, radius of curvature, and thickness of the five-lens structure, the problem of insufficient optical performance in miniaturized camera lenses has been solved, achieving the design requirements of large aperture, wide angle, and ultra-thinness, making it suitable for camera lenses with high-pixel image sensors.
WO2026143493A1PCT designated stage Publication Date: 2026-07-09CHANGZHOU RAYTECH OPTRONICS CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- CHANGZHOU RAYTECH OPTRONICS CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-07-09
AI Technical Summary
Technical Problem
Existing technologies struggle to achieve excellent optical performance in miniaturized camera lenses while simultaneously meeting design requirements for large aperture, ultra-thinness, and wide-angle capabilities.
Method used
A five-lens structure is adopted, and by optimizing parameters such as focal length, radius of curvature, thickness and air gap of each lens, specific relationships are satisfied to achieve the optical characteristics and design requirements of the lens.
Benefits of technology
It has achieved a camera lens with excellent optical characteristics, suitable for high-pixel camera elements, especially mobile phone camera lenses and web camera lenses, with large aperture, wide angle and ultra-thin features.
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Smart Images
Figure CN2024144528_09072026_PF_FP_ABST
Abstract
An imaging optical lens (10, 20, 30, 40), comprising five lenses in total, the five lenses being, sequentially from an object side to an image side, a first lens (L1) having a negative refractive power, a second lens (L2) having a positive refractive power, a third lens (L3) having a negative refractive power, a fourth lens (L4) having a positive refractive power, and a fifth lens (L5) having a negative refractive power, wherein a focal length of the first lens (L1) is defined as f1, a focal length of the second lens (L2) is defined as f2, a focal length of the third lens (L3) is defined as f3, a radius of curvature of an object-side surface of the first lens (L1) is defined as R1, a radius of curvature of an image-side surface of the first lens (L1) is defined as R2, a radius of curvature of an object-side surface of the third lens (L3) is defined as R5, and a radius of curvature of an image-side surface of the third lens (L3) is defined as R6, satisfying the following relational expressions: 1.00≤f3 / (R5+R6)≤-0.30; -0.65≤(R1+R2) / (R1-R2)≤-0.25; and -8.00≤f1 / f2≤-4.00.
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