Lens set, optical system, and electronic device

By designing a lens group with specific optical power and curvature configuration, the problem of limited focal length in smartphone telephoto lenses was solved, achieving high-quality telephoto imaging effects, extending the focal length and improving image quality.

CN122194418APending Publication Date: 2026-06-12ZHEJIANG SUNNY OPTICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG SUNNY OPTICAL CO LTD
Filing Date
2026-03-04
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

The focal length of telephoto lenses in existing smartphones is limited by the thickness of the body, making it difficult to meet the needs of ultra-telephoto lenses. Digital zoom leads to image quality degradation, and insufficient light transmission results in decreased image quality in low-light environments.

⚗Method used

Design a lens group including a first lens group, a second lens group and a third lens group, which, through a specific optical power and curvature configuration, combined with an imaging lens, achieves synergistic correction of aberrations, field curvature and distortion, extends the focal length and improves image quality.

🎯Benefits of technology

While maintaining the compactness of the lens group, high-quality telephoto imaging is achieved, improving the image clarity and optical performance at ultra-long focal lengths.

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Abstract

The application provides a lens set, an optical system and an electronic device. The lens set comprises a first lens set, a second lens set and a third lens set, the first lens set comprises a first lens, a second lens, a third lens and a fourth lens, the second lens set comprises a fifth lens and a sixth lens, a seventh lens, an eighth lens and a ninth lens, and the third lens set comprises a tenth lens, an eleventh lens and a twelfth lens. The lens set satisfies 0.60 < f9 / T910 < 3.10, -4.62 <= F89 / (R15+R18) <= -1.00 and 0.35 < LG3 / FG3 < 0.95, wherein f9 is the effective focal length of the ninth lens, T910 is the air interval of the ninth lens and the tenth lens on the optical axis, F89 is the combined focal length of the eighth lens and the ninth lens, R15 is the curvature radius of the object side of the eighth lens, R18 is the curvature radius of the image side of the ninth lens, LG3 is the axial distance from the object side of the tenth lens to the image side of the twelfth lens, and FG3 is the combined focal length of the third lens set. The lens set can obtain a high-quality telephoto imaging effect.
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