Method for Controlling an Aircraft Light
First Claim
1. Method for controlling an aircraft light (10) so as to emit a desired light intensity, wherein the aircraft light (10) comprises a plurality of LEDs (16, 20) and wherein each of the LEDs (16, 20) is subjected to thermal stress due to at least one of environmental conditions and operational conditions, at least one of the LEDs (20) or at least one group of the LEDs (20) being subjected to a maximum thermal stress, the method comprising the steps ofproviding a reference LED (24) located within or outside of the aircraft light (10),providing thermal conditions resulting in a thermal stress for the reference LED (24) similar to the maximum thermal stress,observing the reference LED (24) by means of an optical sensor (26) for monitoring the optical aging behavior of the reference LED (24) throughout its lifetime, and,for emitting a desired light intensity by the aircraft light (10), controlling the plurality of LEDs (16, 20) of the aircraft light (10) in accordance with the monitored aging behavior of the reference LED (24).
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Accused Products
Abstract
A method for controlling an aircraft having a plurality of LEDs, light so as to emit a desired light intensity includes the steps of providing a reference LED located within or outside of the aircraft light, providing thermal conditions resulting in a thermal stress for the reference LED similar to the maximum thermal stress, and observing the reference LED by means of an optical sensor for monitoring the optical aging behavior of the reference LED throughout its lifetime. The desired light intensity of the aircraft light is achieved by controlling the plurality of LEDs in accordance with the monitored aging behavior of the reference LED.
14 Citations
9 Claims
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1. Method for controlling an aircraft light (10) so as to emit a desired light intensity, wherein the aircraft light (10) comprises a plurality of LEDs (16, 20) and wherein each of the LEDs (16, 20) is subjected to thermal stress due to at least one of environmental conditions and operational conditions, at least one of the LEDs (20) or at least one group of the LEDs (20) being subjected to a maximum thermal stress, the method comprising the steps of
providing a reference LED (24) located within or outside of the aircraft light (10), providing thermal conditions resulting in a thermal stress for the reference LED (24) similar to the maximum thermal stress, observing the reference LED (24) by means of an optical sensor (26) for monitoring the optical aging behavior of the reference LED (24) throughout its lifetime, and, for emitting a desired light intensity by the aircraft light (10), controlling the plurality of LEDs (16, 20) of the aircraft light (10) in accordance with the monitored aging behavior of the reference LED (24).
Specification