LED Display Brightness Measuring System

Applications Quality monitoring in production process of LED display screen Quality improvement of LED display before delivery System Hardware Features  Accuracy Measuring accuracy ±2.5%, stability ±0.5%, scientific grade CCD camera, 16bit Dynamic Range, National standardization;   Luminance Calibration The pixel luminance variance is between 0.8%-1.8% typically, the maximum value ＜3% Auto Switch between factory mode and screen mode; abundant statistical data including data table/histogram/luminance line/maximum minimum ratio/ variance and so on   Chrome Calibration The difference between color coordinate and target is within ±0.003; LEDchecker and color meter will generate the correction data matrix while complete luminance and color correction one time; High Efficiency Normally, take a 1280*768 pixels LED display   for instance: Prepare phase: 5-10 minutes; Capture phase: 0.5-1 hour; Set target and preview phase: 30 minutes;                (mainly the preview and compare) Write data phase: depending on controller,                 10 minutes – 3 hours; Easy Operability Simple process of assembling the hardware and software; Automatic exposure setting, light points positioning, and identify numbers of row and column;   Open And Compatible Supported popular controllers including Linsn/Colorlight/Nova and so on; Provide the control protocol and service of customization;     Parameter   Item Parameter LM200 LM500 LM900 CCD Resolution 1620×1220 2450×2050 3380×2710 Maximum Lightpoints of  Single Capture 160×128 256×192 320×272 Dynamic Range 16bit Measuring Accuracy ±2.5% Short Term Stability ±0.5% Long Term Stability ±1.0% Measuring Range 15~400000cd/m Wavelength Scope 400~700nm   System Topology