Method and numerical tool for optimizing light emitting diode systems

摘要

Methods and numerical tools for designing and optimizing LED systems are provided to achieve a desired luminous performance and to increase reliability and operating lifetime. In addition, methods for designing LED illumination systems are also disclosed to determine an optimum operating power for a desired output luminous flux, given the condition of the rated power of the LED and the heatsink. By the invention, LED illumination systems can be designed with a suitable choice of LED and/or heatsink.

主权项

1. A method of forming or optimizing an LED system to achieve a luminous performance over a time period, the LED system comprising a single or a plurality of LEDs on a heatsink with each LED having a junction, the method comprising the steps of:
(a) calculating a predicted luminous performance over the time period with a computer-implemented dynamic model; and (b) modifying the LED system such that the predicted luminous performance matches the luminous performance, wherein luminous performance is one or more of luminous flux of the LED system, luminous efficacy of the LED system, heatsink temperature and junction temperature over the time period.