Colour temperature and colour location control for a light
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United States of America Patent
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Nov 15, 2011
Grant Date -
Jul 9, 2009
app pub date -
Mar 30, 2007
filing date -
Apr 7, 2006
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Abstract
The present invention relates to a method for providing control signals for a light whose color or color temperature is variable. The invention also relates to a corresponding control apparatus and a corresponding lighting system. In the method, a series of at least three color locations (F.sub.1, F.sub.2, F.sub.3) is determined, which lie on a predetermined color change curve (K1) in a corresponding coordinate system. By way of example, the color change curve may be the Planck curve train or a straight line. The color locations (F.sub.1, F.sub.2, F.sub.3) are in this case chosen such that the respectively corresponding colors have a color distance (d) which, at least approximately, is subjectively perceived as in each case being of the same magnitude. This makes it easier to adjust the light to give a specific desired light impression.
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