How LED display Optical Functionality Testing
In current years, among the incredibly rapid development of LED devices, video screen, graphics screen and digital show as well as other LED devices are welcomed by the market. Right here we describe tips on how to detect complete colour LED display photoelectric properties.
First, the full-color LED display(led traffic sign) photoelectric function parameter evaluation:
The primary function of photoelectric colour parameter includes: Lighting the total power, energy aspect, light intensity distribution, luminaire total output flux, and light output efficiency, lumen upkeep / luminous flux retention rate connected colour temperature, colour rendering index, color tolerance, color coordinates, color Space products unevenness plus the like.
Second, LED full colour display Optical function parameters:
1, the electrical characteristics include: lamp energy, power aspect.
2, thermal attributes incorporate heat resistance and junction temperature.
three, the main color attributes integrated: associate the colour temperature, color contrast index, chromaticity coordinates, color forgiveness, dominant wavelength (color), uneven color uniformity and color space spread.
4, the day of your major qualities including a switching frequency test, day / accelerate life expectancy experiment, cavity repair rate (lumen retention) / strength repair rates.
Third, the full-color LED screen(speed limit sign) optoelectronic functional detection techniques:
1, reflective cup MR16 or PAR beam viewpoint, the light intensity may be spread through a compact bedroom photometric measurement device to measure. When the tests, the mechanical axis, the axial line. Defects are abnormal posture test job status, demand revised test final results.
two, LED lamp lumen can also be utilised to measure the spread photometric measurement device, when the intermediate scale test gamma to180 degrees, too as the mechanical axis coincides intermediate lights. Defects on the examination time is as well lengthy.
Summary: Below the premise in the right method to test, by means of the collection of suitable detection solutions to accurately measure the complete complete colour LED screen photoelectric colour function parameters for scientific assessment from the status LED full-color show using the nature of your provide of information and conduct trend help.