| As a new light source,LED(Light Emitting Diode)has many advantages,such as high efficiency,long life,energy conservation and so on,has been used widely in daily lighting.However,the principle of LED is different from that of the traditional lamps,which causes the defects such as uneven illumination,severe glare and poor color rendering.Many studies have shown that the evaluation methods of traditional lamps are no longer suitable for LED lamps,and the measurement and evaluation system of LED light source has not been formed yet.In this thesis,According to the characteristics of the LED source,a set of measurement scheme based on the spectrometer and luminance meter is designed,the indoor environment of different lighting layout style is built.Through experiment,we can evaluate lighting index in indoor LED environment,such as illumination,uniformity,color temperature,color rendering and glare.Comparing with the result simulated and calculated by Dialux software,we can verify the feasibility of the measurement method.This paper mainly complete the following tasks:(1)The theory of LED concerning lighting environment evaluation is studied systematically,and corresponding measurement methods is introduced in detail,and the main indexes is also simulated by Dialux software.(2)A measuring system based on high precision spectrometer is designed,can measure the spectral curve,illumination,dominant wavelength,color temperature and color rendering index and so on.A measuring system based on luminance meter is designed,can measure the Unified Glare Rating.Finally,the measured results and simulation results are compared and analyzed.The results show that the simulation results are consistent with the measured results.(3)According to the measurement requirements of high efficiency,By using software development platform of Microsoft Visual Studio and the SDK(Software Development Kit)of spectrometer,A functional software is developed,improving the efficiency of measurement and data processing. |
PDF Full Text Request