Manufacturing Method of Night Vision Lighting Devices for Overhead Transmission Line
GENG Jinlong
YANG Junbin
Abstract：The inspection of overhead transmission lines at night is faced with the problem of insufficient illumination.The traditional lighting equipment is insufficient in the environment of fog,rain and snow,and it is difficult for the inspectors to observe the damage and contamination of the conductors,the artificial fill light irradiation distance is short,the light source is easy to shake,easy to miss detection line.In this paper,a multi-lens infrared night vision lighting device is designed.The device adopts three groups of directional lenses,combined with gradient curved glass and perforated lenses with reduced aperture layer by layer to achieve efficient light beaming.Through ZEMAX modeling and Monte Carto Ray Tracing Simulation,the MTF value of the device reaches 0.63 and the effective detection distance is 29.6 m in the 2.0 GM3 fog environment.The outdoor measurement shows that the recognition rate of insulator contamination is 91.2%in light rain and thin fog,and the positioning error of foreign body on conductor is only 1.3 cm in moderate rain and thick fog.It is expected to provide technical reference for the design of more efficient night vision devices.
Keywords：overhead transmission lineinfrared night visionmulti-lens coordinationintelligent recognition
Publication Date：2025-12-25
Online Publishing Date：2026-01-08(First online date of this platform, not the publication date of the document)
Pages：3( 73-75 )