Method, system, and sensor assembly for determining light composition at a target location

A sensor assembly for determining light composition at a target location comprising:

• a first light sensor having a first spectral sensitivity peak within a manufactured light spectral range;
• a second light sensor having a second spectral sensitivity peak within a spectral range of daylight and outside said manufactured light spectral range;
• first and second bandpass filters positioned to filter light transmitted to said first and second light sensors, respectively;
• and
• at least one housing including an end configured to allow light into said at least one housing, each of said sensors and said bandpass filters positioned within said housing;
• wherein said first light sensor and said second light sensor are configured to measure radiant power density at said target location.

A system for modulating a manufactured light source comprising:

• a plurality of sensor assemblies installed in an environment including
• two or more light sensors having corresponding spectral sensitivity peaks, wherein said first spectral sensitivity peak is within a manufactured light spectral range, and said second and additional spectral sensitivity peaks are within a spectral range of daylight and outside said manufactured light spectral range, said two or more light sensors configured to measure a radiant power density of light at a target location in said environment, and
• a bandpass filter associated with each of said two or more light sensors, said bandpass filter positioned to filter light transmitted to said associated light sensor;
• and
• a control module for sending a signal to modulate a quantity and a phase of light transmitted by said manufactured light source according to a spectral characteristic determined by said light sensors radiant power density light measurements, said spectral characteristic being a ratio of daylight to said manufactured light source, phase of daylight, and average overall quantity, or a combination thereof;
• wherein said plurality of sensor assemblies are positioned to measure a radiant power density of light at a plurality of target locations in said environment, said manufactured light source is an electric light source, said electric light source being a light-emitting diode, fluorescent light, discharge light, solid-state light, or a combination thereof, said manufactured light source is color-tunable, said control module is configured to modulate each of a plurality of manufactured light sources independently.