COLOUR TEMPERATURE AND COLOUR LOCATION CONTROL FOR A LIGHT
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Abstract
The present invention relates to a method for providing control signals for a light whose colour or colour 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 colour locations (F1, F2, F3) is determined, which lie on a predetermined colour change curve (K1) in a corresponding coordinate system. By way of example, the colour change curve may be the Planck curve train or a straight line. The colour locations (F1, F2, F3) are in this case chosen such that the respectively corresponding colours have a colour 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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Citations
51 Claims
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1-28. -28. (canceled)
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29. A control device to provide control signals for a luminaire, the colour of which is changeable,
comprising: -
a) an input unit for input of input quantities, b) a computation unit for determining a series of at least three colour locations, which identify three different colours, depending on the input quantities, the colour locations being chosen so that in a co-ordinate system which represents the latter, they are at least approximately on a specified colour change curve, and that between any two colours which are adjacent according to the colour change curve, at least approximately equally great colour distances are present, and for determining, for the luminaire, control signals using which the luminaire can be caused to radiate light in the at least three colours, and c) a transmission unit for transmitting the control signals to the luminaire. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A control device to provide control signals for a luminaire, the colour temperature of which is changeable,
comprising: -
an input unit for input of input quantities, a computation unit to determine a series of at least three colour temperature values, depending on the input quantities, the colour temperature values being chosen so that they correspond to three colours in such a way that between any two adjacent colours, at least approximately equally great colour distances are present, and to determine, for the luminaire, control signals using which the luminaire can be caused to radiate light with the at least three colour temperature values, and a transmission unit to transmit the control signals to the luminaire. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification