IMPROVEMENT TO LIGHTING SYSTEMS
First Claim
1. A power adaptor for a solid state lighting unit, comprising:
- an input for receiving a phase controlled input power signal of varying on-duration; and
a controller coupled to the input and operable to produce at least one pulsed output driving signal in which both the duration and height of the pulses are varied according to the on-duration of the input power signal, to thereby control a light intensity output of the solid state lighting unit.
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Accused Products
Abstract
The present invention relates to power adaptors for solid state lighting units and fixtures, of a kind including light emitting diodes, one of the adaptors comprising an input for receiving a phase controlled input power signal of varying on-duration and a controller coupled to the input and operable to produce at least one pulsed output driving signal in which both the duration and height of the pulses are varied according to the on-duration of the input power signal, to thereby control a light intensity output of the solid state lighting unit, such that the output is made to vary in a way that substantially matches the intensity response of the human eye. Various other arrangements of power adaptors are described along with dimmer controllers for use with the power adaptors, including some which involve motion sensing techniques.
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Citations
49 Claims
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1. A power adaptor for a solid state lighting unit, comprising:
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an input for receiving a phase controlled input power signal of varying on-duration; and a controller coupled to the input and operable to produce at least one pulsed output driving signal in which both the duration and height of the pulses are varied according to the on-duration of the input power signal, to thereby control a light intensity output of the solid state lighting unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A lighting system, comprising:
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a dimmer controller adapted to provide a phase controlled output power signal of varying on-duration; a power adaptor, comprising; an input for receiving the output power signal; and a controller coupled to the input and operable to produce at least one pulsed output driving signal in which both the duration and height of the pulses are varied according to the on-duration of the output power signal, and a solid state lighting unit for receiving the pulsed output driving signal to thereby control a light intensity output of the solid state lighting unit. - View Dependent Claims (13, 14, 15, 16)
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17. A dimmer controller for a lighting system, comprising:
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an adjustment means to vary the power level of a phase controlled output power signal; a motion sensor for detecting activity within the environment around the dimmer controller; and a dimming module coupled to the motion sensor, wherein the dimming module is adapted to set the power level of the output power signal to a standby power level if no activity is detected within a predetermined period of time. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A power adaptor for a solid state lighting fixture of a type having an array of light emitters each having a characteristic light output efficiency curve, the power adaptor comprising:
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an input for receiving a phase controlled input power signal; and a controller coupled to the input and operable to provide at least one output driving signal to the array such that, in use, the driving signal causes the emitters to be operated over an optimum portion of their light output efficiency curves to prevent the light output efficiency of the emitters from falling below a predetermined threshold level to thereby optimize the light output efficiency of the solid state lighting fixture. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 47, 48)
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40. A solid state lighting fixture, comprising:
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an array of light emitters, each emitter having a characteristic light output efficiency curve; and a power adaptor including; an input for receiving a phase controlled input power signal; and a controller coupled to the input and operable to control power to the array such that, in use, the emitters are operated over an optimum portion of their light output efficiency curves to prevent the light output efficiency of the emitters from falling below a predetermined threshold level to thereby optimize the light output efficiency of the lighting fixture. - View Dependent Claims (41, 42, 43, 44, 45, 46)
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49. Apparatus as substantially described herein with reference to the accompanying drawings.
Specification