적분구 상에서 측정위치에 따른 상관색온도 변화예측

Recently, the use of high efficient LED lighting is recommended as a way of energy saving and environment preservation. Integrating Sphere is commonly used for LED lighting measurement especially CCT(Correlated Color Temperature). However, Integrating Sphere can cause a high measurement error because of the position of light source and ambient environment. So, We predicted the variation of Correlated Color Temperature according to measurement position on Integrating Sphere.