Shooting optical lens

By designing an imaging optical lens composed of multiple lenses and prisms, the lens design problem that is difficult to achieve good optical performance, telephoto and miniaturization in the prior art is solved, and high-efficiency aberration correction and excellent optical performance are achieved for high-pixel imaging components.

CN119620344AInactive Publication Date: 2025-03-14CHANGZHOU RAYTECH OPTRONICS CO LTD
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Patent Information

Application Number
CN202411933469.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-03-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

It is difficult to design an imaging optical lens with good optical performance, telephoto and miniaturization characteristics, especially in applications of high-pixel imaging components.

Method used

An optical lens structure consisting of a plurality of lenses and prisms is adopted, wherein the lens includes a lens with positive and negative bending forces, and by reasonably allocating the focal length, radius of curvature and thickness of each lens, and matching the reflective surface design of the prism, it meets the specific optical total length and aberration correction requirements.

Benefits of technology

It realizes the excellent optical performance of the camera optical lens, meets the design requirements of telephoto and miniaturization, and is especially suitable for applications of high-pixel CCD, CMOS and other imaging components, and can fully correct the chromatic aberration on and off-axis.

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Abstract

The invention relates to the field of optical lenses, and discloses a camera shooting optical lens which is composed of a first lens, a second lens, a third lens, a fourth lens and a prism which are sequentially arranged from the object side to the image side. The focal length and the total optical length of the shooting optical lens are f and TTL respectively, the focal length of the first lens is f1, the combined focal length of the front two lenses is f12, the combined focal length of the rear three lenses is f234, the central curvature radiuses of the object side surface and the image side surface of the first lens are R1 and R2 respectively, the axial thicknesses of the first lens and the third lens are d1 and d5 respectively, and the central curvature radiuses of the object side surface and the image side surface of the third lens are R1 and R2 respectively. The axial distance from the object side surface of the first lens to the image side surface of the fourth lens is Td, and the following relational expression is satisfied: f1 / f is greater than or equal to 0.30 and less than or equal to 0.70; -1.40 < = f12 / f234 < =-0.04; -3.00 < = R1 / R2 < =-1.00; 0.16 < = Td / TTL < = 0.21; and 0.05 < = d5 / ET3 < = 0.66.
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Citation Information

Patent Citations

  • Optical system, lens module and electronic equipment

    CN113341539A

  • Photographing lens assembly, image capturing device and electronic device

    CN118057221A

  • Imaging lens group and camera module

    CN118426137A

Cited By

  • Imaging optical lens

    WO2026137315A1

  • Camera optical lens

    WO2026138097A1