Patent ID: 9006998
Filing Date: 2015-04-14
Classification: H05B

Abstract:
1. A lighting device comprising: a plurality of groups of light-emitting elements (LEEs), each of the groups of LEEs comprising one or more LEEs and configured to provide a nominal light output when energized under nominal operating conditions, the groups of LEEs independently energizable; and a controller operatively connected to the groups of LEEs and configured to determine a binary dimming code based on a dimming signal, the binary dimming code having a plurality of bits, each of the groups of LEEs associated with a corresponding bit of the dimming code, the controller further configured to energize each of the groups of LEEs based on a bit value of the corresponding bit of the dimming code, wherein the light output of each group corresponds to a difference in light outputs of the lighting device between adjacent dimming levels of the lighting device.