Imaging lens group, image capturing device and electronic device

By designing an optimized three-piece lens group, the problem of difficult balance between imaging quality and other requirements of existing optical lenses is solved, and the combination of miniaturization and high imaging quality is achieved, which is suitable for diverse application scenarios.

CN119689699APending Publication Date: 2025-03-25LARGAN PRECISION
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Patent Information

Application Number
CN202311439167.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-09-22
Filing Date
2023-10-31
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

Existing optical lenses are difficult to balance the requirements of imaging quality, sensitivity, aperture size, volume or viewing angle, resulting in shortcomings in diverse applications.

Method used

An imaging lens group is designed, including three lenses arranged in sequence from the object side to the image side along the light route. By optimizing the parameters such as curvature radius, Abbe number and refractive index of the lens, specific conditions are met to achieve miniaturization and high imaging quality.

Benefits of technology

It achieves a balance between miniaturization and high imaging quality, is suitable for environments with insufficient light, and has good recognition capabilities to meet diverse application needs.

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Abstract

The invention discloses an imaging lens group. The imaging lens group comprises three lenses. The three lenses are sequentially a first lens, a second lens and a third lens from the object side to the image side along an optical path. The three lenses are respectively provided with an object side surface facing the object side direction and an image side surface facing the image side direction. The second lens element has an object-side surface being concave in a paraxial region thereof. At least one surface of at least one lens in the imaging lens group has at least one inflection point. When specific conditions are met, the imaging lens group can meet the requirements of miniaturization and high imaging quality at the same time. The invention further discloses an image capturing device with the imaging lens group and an electronic device with the image capturing device.
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