LED Lamp and Method for Producing a LED Lamp
AssigneeLite-On It Corporation
InventorTony van Endert
Life of this patent
Estimating the term…
Abstract
A lamp provided with at least two LEDs of substantially the same colour and at least one driver for feeding each of said LEDs, wherein said at least one driver is adapted to feed said at least two LEDs during operation of the lamp at a different power level such that the largest difference in colour temperature of any pair of said LEDs during operation is less than the largest difference in colour temperature of any pair of said LEDs if being fed at an equal operational power level.
Claims11
A lamp provided with at least two LEDs of substantially the same colour and at least one driver for feeding each of said LEDs, wherein said at least one driver is adapted to feed said at least two LEDs during operation of the lamp at a different power level such that the largest difference in colour temperature of any pair of said LEDs during operation is less than the largest difference in colour temperature of any pair of said LEDs if being fed at an equal operational power level.
A method for producing a lamp, wherein the lamp is provided with at least two LEDs of substantially the same colour and at least one driver for feeding each of said LEDs, wherein the colour temperature at a predetermined power level of each of said LEDs is measured, and wherein the driver is adapted in dependence of said measured colour temperature to feed each LED of said lamp during operation of the lamp at a power level, such that the largest difference in colour temperature of any pair of said LEDs during operation is less than the largest difference in colour temperature of any pair of said LEDs if being fed at an equal operational power level.
Dependencies are inferred from the claim text.