Lighting system and controller
First Claim
1. A lighting controller for controlling light intensity output of two different lighting systems, comprising:
- a control device operable within an overall range of operation between first and second end points, for varying first and second electrical outputs as a function thereof, in which the overall range is divided into (i) a first range over which the first electrical output is varied between a first power level and a second power level and over which the second electrical output is held substantially constant, and (ii) a second range over which the first electrical output is held substantially constant at a third power level and over which the second electrical output is varied between a first control level and a second control level.
2 Assignments
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Accused Products
Abstract
A lighting controller is used to independently control variable output intensity of both a first, relatively high power lighting unit and a second, relatively low power lighting unit. A control device is operable within an overall range of operation between first and second end points, for varying the light intensity output of both the first and second lighting units. The overall range of operation is divided into (i) a first range over which the intensity of the first lighting unit is varied between a first level and a second level and over which the intensity of the second lighting unit is held substantially constant at a third level, and (ii) a second range over which the intensity of the first lighting unit is held substantially constant at a fourth level and over which the intensity of the second lighting unit is varied between a fifth level and a sixth level.
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Citations
37 Claims
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1. A lighting controller for controlling light intensity output of two different lighting systems, comprising:
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a control device operable within an overall range of operation between first and second end points, for varying first and second electrical outputs as a function thereof, in which the overall range is divided into (i) a first range over which the first electrical output is varied between a first power level and a second power level and over which the second electrical output is held substantially constant, and (ii) a second range over which the first electrical output is held substantially constant at a third power level and over which the second electrical output is varied between a first control level and a second control level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A lighting system comprising:
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a first lighting unit and a second lighting unit of different electrical characteristics;
a control device operable within an overall range of operation between first and second end points, for varying light intensity output of both the first and second lighting unit, in which the overall range of operation is divided into (i) a first range over which the intensity of the first lighting unit is varied between a first level and a second level and over which the intensity and/or colorer characteristic of the second lighting unit is held substantially constant at a third level, and (ii) a second range over which the intensity of the first lighting unit is held substantially constant at a fourth level and over which the intensity and/or color characteristic of the second lighting unit is varied between a fifth level and sixth level. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A solid state lighting unit comprising:
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an array of separately controllable light emitters of different colors adapted to provide a variable color characteristic output of the lighting unit; and
a control circuit for receiving a control input and for separately controlling the intensity of output of each of the different color thigh emitters in accordance with the control input;
wherein the control input is received on the main power supply to the lighting unit. - View Dependent Claims (35, 36)
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37. (canceled)
Specification