Methods and Apparatus for Sensing Light Output and Controlling Light Output

摘要

Methods and apparatus for lighting control. In some embodiments methods and apparatus are provided that sense a low lighting condition at a location and direct light toward that location after detection of the low lighting condition. In some embodiments apparatus are provided that include a plurality of networked LEDs (20, 30, 220, 230, 320, 330, 420, 430, 520, 530). Some of the LEDs may be illuminated in response to sensed light conditions at certain locations.

主权项

1. A method of directing light toward a light-sensing surface, comprising:
associating a first sensor of a light-sensing surface with at least one of a plurality of light-generating LEDs; associating a second sensor of said light-sensing surface with at least one of said plurality of light-generating LEDs; monitoring a first sensor light intensity of said first sensor and a second sensor light intensity of said second sensor; detecting a first sensor blocked condition at said first sensor when said first sensor light intensity is below a first sensor threshold level; generating a first light output from at least one of said light-generating LEDs associated with said first sensor when said first sensor is in said first sensor blocked condition; detecting a second sensor blocked condition at said second sensor when said second sensor light intensity is below a second sensor threshold level; and generating a second light output from at least one of said light-generating LEDs associated with said second sensor when said second sensor is in said second sensor blocked condition.