Solid-state circadian rhythm lamp and related control techniques

A solid-state circadian rhythm lamp and related control techniques are disclosed. The lamp may have a night/pre-sleep emissions mode in which it emits light having a correlated color temperature (CCT) of about 1,800-2,300 K, the spectral power ratio of blue light (400-495 nm) being such that it cons...

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Bibliographische Detailangaben
Hauptverfasser:	Hegde, Ravidasa, Milliez, Anne Janet, Gupta, Vidisha, Rioux, Philip Gerard, Dutta, Arunava, Li, Ming
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROTHERAPY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING HUMAN NECESSITIES HYGIENE LIGHT SOURCES NOT OTHERWISE PROVIDED FOR LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS LIGHTING MAGNETOTHERAPY MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE RADIATION THERAPY STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR ULTRASOUND THERAPY WEAPONS
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Beschreibung
Zusammenfassung:	A solid-state circadian rhythm lamp and related control techniques are disclosed. The lamp may have a night/pre-sleep emissions mode in which it emits light having a correlated color temperature (CCT) of about 1,800-2,300 K, the spectral power ratio of blue light (400-495 nm) being such that it constitutes about 10% or less of the total light emitted. The lamp may have a day/wakeup emissions mode in which it emits light having a CCT of about 5,000-8,000 K, the spectral power ratio of blue light being such that it constitutes about 30% or more of the total light emitted. The lamp may have a general lighting mode in which it produces a combined light output having a CCT of about 2,500-5,000 K. The lamp driver may support emissions mode changing based on hysteresis relating to a lighting switch associated with a power socket hosting the lamp.