透雾镜头

By designing a special combination of nine lenses and filters, the problem of unclear imaging in foggy weather by visible light lenses has been solved, realizing a fog-penetrating lens that can capture clear images in foggy weather under visible light conditions. It has a wide range of applications and high image quality.

CN117008295BActive Publication Date: 2026-07-17FOCTEK PHOTONICS INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FOCTEK PHOTONICS INC
Filing Date
2023-06-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing visible light lenses cannot obtain clear images in foggy weather and cannot achieve fog-penetrating imaging under visible light conditions.

Method used

A fog-penetrating lens was designed, which uses a special combination of nine lenses and filters, including cemented doublet lenses and single lenses. It employs specific materials, shapes, optical power, air gaps and radii of curvature, and combines the imaging characteristics of visible light and near-infrared light. It uses filters of different thicknesses to switch between different modes to achieve clear imaging.

Benefits of technology

Under visible light conditions, the lens can capture clear images in ordinary or foggy weather, meeting the requirements for MTF, distortion, and relative illumination across the entire field of view. It is applicable to a wide range of ambient temperatures and achieves confocal imaging.

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Abstract

本发明涉及一种透雾镜头,设置在探测器前,包括由物方至像方依次设置第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜、第七透镜、第八透镜、第九透镜与滤光片;其中,第二透镜与第三透镜组成双胶合透镜,第四透镜与第五透镜组成双胶合透镜,第六透镜与第七透镜组成双胶合透镜,其余透镜均为单透镜;所述滤光片为380‑650nm波段增透且其它波段截止的滤光片或者为650‑950nm波段增透且650nm以下波段截止的滤光片。该发明克服现有镜头无法可见光且薄雾条件下无法获得清晰透雾影像的缺点,通过特别设计材质、形状、光焦度、空气间隙、曲率半径的九片透镜与滤光片的配合,具有可见光条件下在寻常天气或雾天均可获得清晰影像的优点。
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