How to test the optical parameters of LED Highbay, such as luminous flux and illuminance?
Publish Time: 2024-10-24
Testing the optical parameters of LED Highbay is crucial for evaluating the performance of lamps.
Luminous flux refers to the total amount of light emitted by the lamp, and the unit is lumen (lm). Testing luminous flux usually needs to be carried out in an integrating sphere system. An integrating sphere is a sphere with a high reflectivity coating on the inside, which can evenly reflect and collect the light emitted by the lamp. Place the LED Highbay inside the integrating sphere, turn on the lamp, and measure the luminous flux through the photometer connected to the integrating sphere. This method can effectively avoid the interference of external ambient light and accurately obtain the total amount of light emitted by the lamp.
Illuminance refers to the luminous flux received per unit area, and the unit is lux (lx). When testing illuminance, first determine the test plane, which is generally the working plane under the lamp. Use a illuminance meter to measure illuminance, and place the probe of the illuminance meter at different positions on the test plane, because the light distribution of the lamp is usually not uniform. In order to obtain accurate results, it is necessary to measure at multiple points, such as determining the measurement points according to a certain grid layout. For the high bay light test in large factories, it may be necessary to use an illuminance meter with a long pole or remote control function to facilitate measurement at high places and different positions.
During the test process, some details need to be paid attention to. To ensure that the lamp is in normal working condition, including the use of appropriate driving power supply, the luminous angle and installation height of the lamp should be in line with the actual use. At the same time, the influence of ambient light should be eliminated as much as possible, and it is best to test in a dark room or a dark environment. In addition, the test instrument should be calibrated regularly to ensure the accuracy of the measurement. Through these scientific test methods, we can accurately grasp the optical parameters such as luminous flux and illuminance of LED Highbay, so as to better evaluate whether the lamp meets the lighting needs of the workplace.
