High uniformity light source device for transmissive visibility meter

Abstract

A high-uniformity light source device for a transmission visibility meter, including a light source and a housing for generating light beams. The light source is arranged in sequence along the light beam emission direction with a light incident lens, an optical fiber light guide rod, and a light exit lens. The light entrance lens and the light exit lens are supported by supporting components. Positioning, the light emitted by the light source passes through the entrance lens, optical fiber light guide rod and light exit lens in sequence and exits the housing. The invention adopts the optical fiber light guide rod, so that after the light source passes through the optical fiber light guide rod, there are thousands of light sources emitting light at the light outlet of the optical fiber light guide rod. The light output lens gathers and superimposes these light sources, thereby improving the light source In addition, keep the caliber of the optical fiber light guide rod unchanged, the more the number of optical fibers, the better the uniformity of light; the invention avoids the problems and influences caused by the unevenness of the light source during the measurement process, and ensures the accuracy of the measurement Stability and accuracy ensure the progress and efficiency of measurement work. It can be widely used to provide a uniform light source for a transmissive visibility meter.

Description

technical field [0001] The invention relates to an optical device for making illumination more uniform. Background technique [0002] Transmissive visibility meter is a test instrument for measuring road visibility and smog concentration in tunnels. It has good data processing, user-friendly interface and output functions, and can provide users with real-time visibility values ​​in this area of ​​the road and smog concentration in tunnels. At the same time, it has the functions of data storage and complete data post-processing analysis. It is mainly used for the completion and acceptance of highway visibility values ​​​​and tunnel smoke concentration detection indicators under different climate conditions. The transmission visibility meter is composed of two main components: a light source and a receiver. The light source The uniformity of the measurement directly affects the stability and accuracy of the measurement. Conventional light sources cannot guarantee good uniformi...

AI Technical Summary

Problems solved by technology

[0002] Transmissive visibility meter is a test instrument for measuring road visibility and smog concentration in tunnels. It has good data processing, user-friendly interface and output functions, and can provide users with real-time visibility values ​​in this area of ​​the road and smog concentration in tunnels. At the same time, it has the functions of data storage and complete data post-processing analysis. It is mainly used for the completion and acceptance of highway visibility values ​​​​and tunnel smoke concentration detection indicators under different climate conditions. The transmission visibility meter is composed of two main components: a light source and a receiver. The light source The uniformity of the measurement directly affects the stability and accuracy of the measurement. Conventional light sources cannot guarantee good uniformity, which brings adverse factors to the measurement and affects the accuracy of the measurement. If the measurement results are inaccurate, it will bury hidden dangers and cause severe loss and damage

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