Abstract
In this paper, an easy-to-use measurement device for illumination
distribution is developed. The device consists of a sensor array module, a control
module, and a PC interface. The sensor array module incorporates CIE 1931 color
sensors and the ARM-based 96 MHz microcontroller in the control module for
measurement and data processing. The sensor array module contains 64 color sensors
arranged in a 16x4 array. The sensitivity of the sensor array module can be
adjusted depending on the illumination level to be measured. The measurement data
and control signals are exchanged via USB 2.0 standard. To demonstrate the
performance of the device, the illumination distribution is measured for colors of
red, green, and blue and is graphically shown. The device can be used for
measurement of the illumination distribution, design and adjustment of LED
illumination.
© 2011 Optical Society of Korea
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