Method for dimming the light emitted from LED lights, in particular in the passenger cabin of an airliner
AssigneeDiehl Aerospace GmbH
InventorUlrich Pöhler
Life of this patent
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Abstract
In order to dim the brightness of the mixed-color light from an LED light (11) with LED arrays (12r, 12g, 12b) which emit different colors, in particular in the passenger cabin of an airliner, the current-flow time intervals (tr, tg, tb) which can be adjusted such that they are different over the various arrays (12) are shortened in steps during initially constant working period lengths (ta).
Claims9
A method for dimming a light emitted from LED lights, by variation of LED current-flow time intervals during cyclically successive working periods, providing a drive cycle for current-flow time intervals which are determinable independently of one another over multicolor LED arrays, wherein said LED lights is in a passenger cabin of an airliner, wherein the drive cycle is subjected to a variation in a cycle length thereof and
- wherein the cycle length is varied when current flows through at least one of the LED arrays over a time interval which is short in comparison with a present working period length and wherein a sequence of the drive cycles is in each case composed of a sequence of a working period during which current flows and at least one or more no-load periods during which no current flows.
A method for dimming a light emitted from LED lights by variation of LED current-flow time intervals during cyclically successive working periods, providing a drive cycle for current flow time intervals which are determinable independently of one another over multicolor LED arrays, wherein said LED lights is in a passenger cabin of an airliner, wherein the drive cycle is subjected to a variation in a cycle length thereof and wherein a sequence of the drive cycles is in each case composed of a sequence of a working period during which current flows and at least one or more no-load periods during which no current flows.
Dependencies are inferred from the claim text.