Patent ID: 7638743

Claim:
A system for automatically controlling a light level of an interior space, the system comprising: a light pipe configured to provide light to the interior space, the light pipe comprising: (a) a reflective tube; (b) a diffuser including a concave surface, the diffuser mounted to a first end of the reflective tube, the concave surface facing the interior space; and (c) a light collection system mounted to a second end of the reflective tube, the second end opposite the first end; and a light sensor configured to measure a light level of the interior space and to send the measured light level to a controller, the controller configured to: (d) receive the measured light level from the light sensor; (e) compare the received light level with a light level setting, the light level setting indicating a desired light level for the interior space; (f) determine a value for a lighting indicator based on the comparison; (g) define a control signal including the determined value; and (h) send the defined control signal to a receiver via radio frequency; and a lighting system, the lighting system comprising a light fixture operably coupled to the receiver, the receiver configured to: (i) receive the control signal; (j) extract the determined value from the received control signal; and (k) adjust a light level of the light fixture based on the extracted value.