Test platform for measuring smog transmittance of light source

Abstract

The invention discloses a test platform for measuring the smog transmittance of a light source. The test platform comprises a shell. The two ends of the shell in the length direction are respectivelyprovided with an airflow inlet and an airflow outlet. A channel for a test airflow to continuously pass through is formed between the airflow inlet and the airflow outlet. An arc-shaped shunting plate, a first-stage airflow equalizing plate, a second-stage airflow equalizing plate and a scattered light eliminating plate are arranged between the airflow inlet and the airflow outlet in the shell insequence. Detection holes are arranged on the two opposite side walls of the shell in the width direction, and in the scattered light eliminating plate between the above two side walls, wherein the detection holes are corresponding to one another in position and are configured to penetrate along the width direction of the shell. A light source used for projecting the detection light to the detection holes and a visible light detection module used for receiving the detection light are arranged on the two sides of the shell respectively. According to the invention, a foundation is laid for quantitatively providing a smog transmittance performance index for the light source, and a basis is provided for designing the light source high in smog transmittance performance.

Description

technical field [0001] The invention relates to the field of simulation experiments of lighting equipment, in particular to a test platform for measuring the penetration performance of light source smoke. Background technique [0002] Once the road lighting system is put into use, the lamps will be in a long-term working state. Therefore, choosing a suitable light source is an important part of lighting design. In addition, when selecting the light source for road lighting, not only the lighting effect and the adaptability of the driver during driving should be considered comprehensively, but also the light source should be able to have good visibility in the smog or smoke emitted by the car. This has high requirements on the light efficiency, luminous flux, life, light color, color rendering and fog penetration of the light source. However, the existing technology has always only focused on the basic lighting safety and electromagnetic compatibility requirements of street ...

AI Technical Summary

Problems solved by technology

However, in theory, when the test room adopts a closed structure, there must be a relatively obvious phenomenon of wall attachment in the internal smoke. Although setting up a fan can avoid smoke adsorption to a certain extent, in theory, the stirring fan can only make the gas movement in the test room more intense, and cannot improve its uniformity

At the same time, a large number of actual measurement results prove that the existing fog penetration test devices generally have the problems of poor uniformity of smoke and large fluctuations in readings.

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