LIGHTING FIXTURES WITH ADJUSTABLE OUTPUT BASED ON SPATIAL ORIENTATION
First Claim
1. A lighting unit comprising:
- a housing rotatable about at least a first axis;
at least one light source mounted on said housing, wherein the intensity of light emitted from said at least one light source is adjustable;
a sensor configured to determine the orientation of said housing relative to a predetermined datum, wherein said predetermined datum is a gravitational field; and
a controller operably connected between said sensor and said light source, wherein said controller is configured to automatically adjust the intensity of light emitted from said at least one light source based upon the determined orientation of said housing.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a lighting unit (14a, b) that includes a housing that can be rotated around an axis. Each lighting unit has at least one light source (16a,b/18a,b) mounted on the housing, and the intensity of light emitted from the light source is adjustable. The lighting units also have a sensor (540a, b) that determines the orientation of the housing relative to a predetermined source Light source Light source Light source mined datum, such as gravity, in response to the rotation of the housing around the axis. The lighting units further have a controller (500a, b) connected to the sensor and the light source which automatically adjusts the intensity of light emitted from the light source based upon the determined orientation of the housing.
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Citations
25 Claims
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1. A lighting unit comprising:
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a housing rotatable about at least a first axis; at least one light source mounted on said housing, wherein the intensity of light emitted from said at least one light source is adjustable; a sensor configured to determine the orientation of said housing relative to a predetermined datum, wherein said predetermined datum is a gravitational field; and a controller operably connected between said sensor and said light source, wherein said controller is configured to automatically adjust the intensity of light emitted from said at least one light source based upon the determined orientation of said housing. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11)
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5. (canceled)
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12. (canceled)
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13. A lighting fixture comprising:
a rail extending along a longitudinal axis; and a plurality of lighting units mounted to said rail for selective rotation about said longitudinal axis, wherein each of said plurality of lighting units comprises a housing, at least one light source, a sensor configured to determine the orientation of said housing relative to a predetermined datum, and a controller operably connected between said sensor and said light source, wherein said controller is configured to automatically adjust a predetermined property of at least one of said at least one light sources based upon the determined orientation of said lighting unit, wherein each of said plurality of lighting units is independently rotatable about said longitudinal axis. - View Dependent Claims (15, 16, 18, 19, 20, 21)
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14. (canceled)
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17. (canceled)
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22. A method for creating a desired illumination pattern using a lighting fixture comprising a rail extending along a longitudinal axis and a plurality of lighting units mounted to said rail for independent rotation about said longitudinal axis, each of said plurality of lights comprising at least one light source, the method comprising the steps of:
automatically determining a first orientation of at least one of said plurality of lighting units in response to rotation of said at least one of said plurality of lighting units; and automatically adjusting the intensity of light emitted from at least one light source of the rotated lighting units based upon the determined first orientation of said lighting units wherein each of said plurality of lighting units is independently rotatable about said longitudinal axis. - View Dependent Claims (23, 24)
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25. (canceled)
Specification