Abstract
We examined the results obtained from the measurements of the total luminous flux of general oval type LEDs using two different integrating spheres of size and two types of measuring instruments,photometer of color correction and spectro-radiometer.
Measured values of blue LEDs and blue-green LEDs can particularly be corrected by color correction. About the results after color correction, the difference of measured values between the two measurring instruments were small except the values of blue LEDs and red LEDs. In addition, measured values by photometer of color correction did not depend on the size of integrating sphere.
