Modeling and Simulation of Multielement LED Source

Use of LEDs in lighting applications is increasing day by day. Performance of source constructed using many LEDs depends on the placement of LEDs on source panel and their spatial and spectral characteristics. The paper reports the development of a dedicated package for analyzing and designing of LED multi-element source. Mathematical and optical modules are developed for the same using analytical equations. The tool accommodates newly developed high intensity LEDs with variable spectral and spatial responses. Further color rendering using CIE 1964 scheme is incorporated in package to give colored illuminated pattern on target. The tool is validated by testing for different source panel geometries and for variable source characteristics.