Patent ID: 9162611
Filing Date: 2015-10-20
Classification: B60Q,F21S,F21W,F21Y,H05B

Abstract:
1. A method for smoothly moving a light pattern across a space, the method for use with a plurality of LEDs mounted in a line and at least a first lens positioned in front of the LEDs to direct light from each LED into an illumination field associated with the LED wherein the illumination fields of energized LEDs together create an illumination pattern and wherein a first edge illumination field is at one end of the illumination pattern and a second edge illumination field is at another end of the illumination pattern opposite the one end, the method comprising the steps of: providing a processor programmed to perform the steps of: controlling LED duty cycles to move the illumination pattern projected by the at least a first lens in a first direction to the side of the first edge illumination field opposite the second edge illumination field by: (i) increasing a duty cycle of an LED associated with the first edge illumination field while simultaneously decreasing a duty cycle of an LED associated with the second edge illumination field until the duty cycles of the LEDs associated with the first and second edge illumination fields are maximum and minimum duty cycles, respectively; and (ii) repeating step (i) with the illumination field adjacent the first edge illumination field in the first direction as the first edge illumination field and with the illumination field adjacent the second edge illumination field in the first direction as the second edge illumination field.