An optical lens for use in driver assistance systems

By using a combination of six glass and plastic aspherical lenses, the problem of excessive size and unstable image quality of automotive lenses has been solved, achieving a small-sized, large-aperture, high-image-quality optical lens that can achieve clear imaging under complex environmental conditions.

CN122085487APending Publication Date: 2026-05-26DONGGUAN JIUZHOU OPTICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGGUAN JIUZHOU OPTICAL CO LTD
Filing Date
2026-03-18
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing in-vehicle advanced driver assistance system lenses suffer from problems such as excessive size, unstable image quality, high image noise, and poor environmental adaptability, especially under high and low temperature and low light conditions.

Method used

It employs a 6-lens structure, including a combination of glass and plastic aspherical lenses, designed for small size, large aperture, and high image quality. The glass lenses ensure high and low temperature performance, while the plastic lenses reduce costs and correct aberrations. Combined with specific optical power and refractive index design, it enhances environmental adaptability.

Benefits of technology

It achieves small size, large aperture, and high image quality imaging in automotive ADAS scenarios, enhancing the imaging stability and quality of the lens in complex environments, especially improving imaging performance under low light conditions.

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Abstract

This invention provides an optical lens for use in a driver assistance system, comprising a first lens, a second lens, a third lens, a fourth lens, an aperture stop, a fifth lens, and a sixth lens arranged sequentially along the optical axis from the object side to the image side; the first and fourth lenses are glass lenses, while the second, third, fifth, and sixth lenses are plastic aspherical lenses; the first lens is a convex-concave negative power lens, the second lens is a concave-convex positive power lens, the third lens is a concave-convex positive power lens, the fourth lens is a biconvex positive power lens, the fifth lens is a biconcave negative power lens, and the sixth lens is a biconvex positive power lens. This invention aims to provide an optical lens that is suitable for automotive ADAS scenarios, has a small size, a large aperture, high image quality, and strong environmental adaptability, balancing size and image quality, enhancing the environmental adaptability of the optical lens, and improving low-light imaging performance.
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