A high definition wide angle lens

Through a five-lens structure and a reasonable optical design, the miniaturization and high-definition problems of wide-angle lenses with a large field of view have been solved, achieving low distortion and environmental adaptability, improving image quality, and making it suitable for fields such as smart security and handheld cameras.

CN122592601APending Publication Date: 2026-08-18HUIZHOU JINGRUI OPTICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202610921911.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-25
Publication Date
2026-08-18

AI Technical Summary

Technical Problem

Existing wide-angle lenses struggle to achieve miniaturization, low distortion, high definition, and good environmental adaptability while maintaining a large field of view, especially in complex environments where their imaging performance is unstable.

Method used

It adopts a five-lens structure, including a first lens with negative optical power, a second lens with positive optical power, a third lens with positive optical power, a fourth lens with positive optical power, a fifth lens with negative optical power, and an infrared filter. The lens design uses glass spherical surfaces and plastic aspherical surfaces, and an aperture is set to control the light path and correct aberrations, and the optical power and thermal expansion coefficient are reasonably distributed.

Benefits of technology

It achieves a miniaturized, high-resolution, heat-free, and low-distortion wide-angle lens, improving image quality and environmental adaptability, and is suitable for fields such as smart security and handheld cameras.

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Abstract

The application discloses a high-definition wide-angle lens, which comprises, in sequence along an optical axis from an object side to an image side, a first lens with negative optical power, the object side being a concave surface and the image side being a concave surface; a second lens with positive optical power, the object side being a convex surface and the image side being a convex surface; a third lens with positive optical power, the object side being a concave surface and the image side being a convex surface; a fourth lens with positive optical power, the object side being a convex surface and the image side being a convex surface; a fifth lens with negative optical power, the object side being a concave surface and the image side being a convex surface; and an infrared filter between the fifth lens and an imaging surface; the third lens is a glass spherical lens, the first lens, the second lens, the fourth lens and the fifth lens are plastic aspherical lenses, and a diaphragm is arranged between the second lens and the third lens. Through reasonable optical power distribution, the performance of 140-150 degrees of large field of view, optical total length of less than 13.6 mm and full-field MTF of 100 lp / mm being greater than or equal to 50% is realized, and the high-definition wide-angle lens is suitable for fields of vehicle-mounted surround view, intelligent security and the like.
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