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Illumination & Displays

LED utility

RSoft

RSoft Design Group announces the release of its New LED Utility. LEDs are widely used in a wide range of applications and there is increasing demand for optimized structures with higher extraction efficiency and improved color uniformity. An LED designer is given the task of creating more efficient structures, but characterization and fabrication times can delay the process and increase costs. RSoft's LED Utility can shorten processing time and save development cost by providing accurate computer-based simulation and design optimization.

The LED Utility accurately simulates novel LED structures and all materials involved. It utilizes RSoft's CAD Environment to describe the geometry and material properties and uses RSoft's flagship simulation tool FullWAVE. The RSoft CAD Environment interface is a fully parametric, highly flexible user-friendly design environment with 3D editing capabilities to simplify the description of complex LED geometries. The underlying FullWAVE simulation is based on the Finite-Difference Time-Domain (FDTD) algorithm. This is a rigorous approach for solving Maxwell's equations with no inherent approximations, which makes it well suited to accurately model the intricacies of an LED structure.

The complexities of LED optical design arise from various factors including; multiple interfaces with widely differing sizes, the use of novel materials and structures, dispersion, surface roughness, the use of gratings to enhance extraction efficiency, and the incoherent nature of the output light. The LED Utility accounts for all these situations and performs all necessary pre- and post-processing to generate the desired results including extraction ratio and radiation patterns.

www.rsoftdesign.com