Development of multipurpose calibration device on variable angle chromaticity and LED single tube light color

A multipurpose calibration device has been successfully designed to measure variable angle luminosity of light source and body surface and chroma parameter, which adopts two-dimensional automatic rotation control combined with servo motor, sensor and measurement software. It solves problems that measurement devices to measure the luminosity and chromaticity parameter are all independent device. Results show that this device can measure such parameters as total luminous flux, A/B field average luminous intensity with CIE, isocandela/illumination curve and small size display photometric chromaticity and variable angle chromaticity of body surface. Average luminous intensity, luminous flux, Y value and chromaticity coordinates and the standard deviation of the device are-1.8%, 1.5%, 0.9 and 0.005 respectively. So this device has met design requirements of high accuracy, convenient function switch, high level of automation and simple operation.