Surgery – Miscellaneous – Methods
Reexamination Certificate
2001-09-07
2011-10-04
Farah, Ahmed M (Department: 3769)
Surgery
Miscellaneous
Methods
C607S088000
Reexamination Certificate
active
08028706
ABSTRACT:
The invention relates to a method for controlling the alertness of a human subject and a light source for use in this method and use of a light source for this method. The method comprises exposure of a human subject during an exposure period to suitable light radiation without substantially influencing the phase of a melatonin cycle. Melatonin is a sleep-hormone that can be used to control the alertness of a human subject. The suitable light radiation being specified by an output fraction of melatonin suppressive radiation (Melatonin Watt/Watt) and light output (lumen/Watt), the output fraction and light output being adjusted to obtain the desired effect on the phase of said cycle.
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Arendt Josephine
Skene Debra J.
Thapan Kavita
Van Den Beld Gerrit Jan
Van Der Burgt Petrus Johannes Mathijs
Farah Ahmed M
Koninklijke Philips Electronics N. V.
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