Systems and methods for controlling environmental illumination

A system for operating one or more light sources providing illumination to an individual, the system comprising:

• a data receiver unit configured to receive electronic information indicative of a circadian state of an individual from one or more data sources;
• a circadian state association unit configured to assign a circadian state to the individual based on the received electronic information, configured to extrapolate future circadian states based on the assigned circadian state, and configured to update a profile corresponding to the individual with the assigned circadian state and the extrapolated future circadian states, the assigned circadian state or the extrapolated future circadian states including at least a biological night state;
• a lighting command encoding unit receiving the profile corresponding to the individual and encoding machine-level control commands that control the operation of the one or more light sources;
• and
• a lighting command unit configured to transmit the machine-level control commands to the one or more light sources, the machine-level control commands adapted such that the aggregate incident lighting provided by the one or more light sources provides light with a spectral power distribution having circadian-significant attenuation along a circadian active wavelength range during durations of time when the individual is in the biological night state, and the aggregate incident lighting provided by the one or more light sources has overall lighting characteristics within a pre-determined comparable range relative to the aggregate incident lighting provided by the one or more light sources when the one or more light sources are activated but not controlled to have circadian-significant attenuation along the circadian active wavelength range;
• wherein the circadian active wavelength range includes wavelengths of blue light and green light;
• wherein the biological night state further includes (i) a biological early night state, and (ii) a biological late night state;
• wherein for the biological early night state, the lighting command encoding unit encodes machine-level control commands such that the aggregate incident lighting provided by the one or more light sources provides light with a spectral power distribution having circadian-significant attenuation along both the blue and green wavelength ranges during durations of time when the individual is in the at least one biological early night state;
• and
• wherein for the biological late night state the lighting command encoding unit encodes machine-level control commands such that the aggregate incident lighting provided by the one or more light sources provides light with a spectral power distribution having circadian-significant attenuation along the blue wavelength range during durations of time when the individual is in the at least one biological late night state, while substantially transmitting light along the green wavelength range.