Uniform illumination over a square target-surface using LED arrangements

Abstract

This document intends to present a study of configurations for the uniform illumination over a square-target-surface (of task-lighting dimensions) using power LEDs. A particular application of this is the illumination of a carrom board. A lighting scheme involving a distributed arrangement of LEDs that provides a near-uniform illumination level for a given height, is proposed. The optimized parameters for the variables in the arrangement are obtained by the use of MATLAB functions for optimization. The existing lighting system for the illumination of the carrom boards at NITK Surathkal is measured and compared with the proposed arrangement. � 2012 IEEE.