Adjustable output solid-state lighting device
First Claim
1. A lighting device to provide manually adjustable levels of solid state lighting, the lighting device comprising:
- an adjustment component having a user-engageable actuator physically manipulable by a user and accessible by the user from an exterior of the lighting device to vary an output of the adjustment component; and
a driver circuit electrically coupled to adjust an amount of light output by a number of solid-state light sources in response to the output of the adjustment component, the driver circuit including;
a feedback circuit which provides a feedback signal responsive to current flowing through the solid-state light sources, the feedback circuit electrically couples to the adjustment component, and physical manipulation of the user-engageable actuator of the adjustment component by a user directly affects the feedback signal; and
a controller comprising an input terminal that receives the feedback signal from the feedback circuit, the driver circuit adjusts the amount of light output by the solid-state light sources based at least in part on the output of the adjustment component received through the feedback circuit at the input terminal.
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Accused Products
Abstract
A solid-state lighting device has user-engageable actuator physically manipulable by a user and accessible from an exterior of the device to adjust an amount of light output. The user-engageable actuator may take the form of a knob, slider, lever, or other manipulable surface or structure. The user-engageable actuator may extend partially or fully from a housing, or alternatively be recessed or otherwise within the housing with access provided via an aperture, slot or opening. Access may be directly by the user (e.g., finger) or via a tool (e.g., screw driver, Allen wrench, socket) manipulated by the user. The actuator may form part of an adjustment component (e.g., potentiometer, rheostat) which supplies an adjustable output to a drive circuit or electronics. The adjustment component may be electrically coupled to either a primary or secondary side of a transformer, which forms part of a power converter (e.g., flyback).
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Citations
23 Claims
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1. A lighting device to provide manually adjustable levels of solid state lighting, the lighting device comprising:
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an adjustment component having a user-engageable actuator physically manipulable by a user and accessible by the user from an exterior of the lighting device to vary an output of the adjustment component; and a driver circuit electrically coupled to adjust an amount of light output by a number of solid-state light sources in response to the output of the adjustment component, the driver circuit including; a feedback circuit which provides a feedback signal responsive to current flowing through the solid-state light sources, the feedback circuit electrically couples to the adjustment component, and physical manipulation of the user-engageable actuator of the adjustment component by a user directly affects the feedback signal; and a controller comprising an input terminal that receives the feedback signal from the feedback circuit, the driver circuit adjusts the amount of light output by the solid-state light sources based at least in part on the output of the adjustment component received through the feedback circuit at the input terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A lighting device for use with solid-state light sources and for use with lighting fixtures having at least one coupler configured to provide detachable physical and electrical connections therewith, the lighting device comprising:
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at least one complementary coupler that physically and electrically detachably couples to the coupler of the lighting fixture and that transfers power from the lighting fixture to the lighting device; a resistive adjustment component having at least two terminals and having a user-engageable actuator that varies an output of the resistive adjustment component between the at least two terminals in response to physical manipulation by a user; and a set of driver electronics electrically coupled between the complementary coupler and the resistive adjustment component and which adjusts an amount of light output by the solid-state light sources based at least in part on the output of the resistive adjustment component, the set of driver electronics including; a feedback circuit which provides a feedback signal responsive to current flowing through the solid-state light sources, the feedback circuit electrically couples to at least one of the at least two terminals of the resistive adjustment component, and physical manipulation of the user-engageable actuator of the resistive adjustment component by a user directly affects the feedback signal; and a controller comprising an input terminal that receives the feedback signal from the feedback circuit, the set of driver electronics adjusts the amount of light output by the solid-state light sources based at least in part on the output of the resistive adjustment component received through the feedback circuit at the input terminal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A lighting system, comprising:
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a plurality of lighting devices each coupled to a common supply circuit, each of the lighting devices comprising; a respective adjustment component having a user-engageable actuator physically manipulable by a user and accessible by the user from an exterior of the respective lighting device to vary an output of the adjustment component; and a respective driver circuit electrically coupled to adjust an amount of light output by a number of solid-state light sources of the respective lighting device in response to the output of the respective adjustment component, each of the respective driver circuits including; a feedback circuit which provides a feedback signal responsive to current flowing through the respective number of solid-state light sources, the feedback circuit electrically couples to the respective adjustment component, and physical manipulation of the user-engageable actuator of the respective adjustment component by a user directly affects the feedback signal; and a controller comprising an input terminal that receives the feedback signal from the respective feedback circuit, the driver circuit adjusts the amount of light output by the respective number of solid-state light sources based at least in part on the output of the respective adjustment component received through the feedback circuit at the input terminal.
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Specification