光学镜头

By rationally configuring seven lenses and matching their optical power, the problems of multi-lens setup and poor edge field-of-view imaging quality in automotive ADAS systems have been solved, achieving a large field of view and high resolution optical lens, thus improving the imaging quality and obstacle recognition capabilities of the ADAS system.

CN118818712BActive Publication Date: 2026-07-17JIANGXI LIANCHUANG ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGXI LIANCHUANG ELECTRONICS CO LTD
Filing Date
2024-06-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing automotive ADAS systems require multiple lenses to be installed on both sides of the vehicle to achieve view fusion, and the imaging quality at the edge of the field of view is poor, making it impossible to clearly distinguish obstacles.

Method used

Design an optical lens with seven lenses, including a first lens with negative optical power, a second lens with negative optical power, a third lens with positive optical power, a fourth lens with negative optical power, a fifth lens with positive optical power, a sixth lens with positive optical power, and a seventh lens with negative optical power. By rationally configuring the lens surface shape and optical power, specific conditions such as field of view, image height ratio, and aperture value are met, and the optical design is optimized to improve the imaging effect at the edge of the field of view.

Benefits of technology

It achieves a wide field of view and high resolution optical lens, with clear edge field of view imaging, which improves the imaging quality and obstacle recognition capability of ADAS system.

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Abstract

本发明提供了一种光学镜头,共七片透镜,沿光轴从物侧到成像面依次包括:具有负光焦度的第一透镜,其像侧面为凹面;具有负光焦度的第二透镜;具有正光焦度的第三透镜;具有负光焦度的第四透镜;具有正光焦度的第五透镜;具有正光焦度的第六透镜;具有负光焦度的第七透镜;所述光学镜头的最大视场角所对应的真实像高IH与中心视场角所对应的真实像高IHm满足:IHm / IH<0.5。本发明光学镜头通过各镜片面型的合理配置以及光焦度的合理搭配,具有大视场角和高解像力,具有良好的成像品质,边缘视场成像清晰。
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