Multi-emitter lighting system with calculated drive
First Claim
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1. A lighting system comprising:
- a plurality of emitters, each of the emitters having an emission spectrum that differs from the emission spectra of the other emitters;
a driver circuit connected to the emitters; and
a controller that determines drive levels for the emitters and informs the driver circuit to apply the drive levels to the emitters, the controller determining the drive levels using one or more of an age of the emitters and calibration data that characterizes the emission spectra of the emitters.
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Abstract
Systems and methods permit use of efficient solid state emitters for broad spectrum continuous spectrum lighting defined by illumination data. The illumination data, which can be sold as a commercial product, can be recorded or authored and include spectral, temporal, and spatial information. A lighting fixture can use information such as the illumination data, emitter age, temperature, and calibration data to calculate drive levels as needed to control intensities of individual emitters and thereby produce desired patterns of spectral content and time variation.
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Citations
19 Claims
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1. A lighting system comprising:
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a plurality of emitters, each of the emitters having an emission spectrum that differs from the emission spectra of the other emitters; a driver circuit connected to the emitters; and a controller that determines drive levels for the emitters and informs the driver circuit to apply the drive levels to the emitters, the controller determining the drive levels using one or more of an age of the emitters and calibration data that characterizes the emission spectra of the emitters. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A lighting system comprising:
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a plurality of emitters, each of the emitters having an emission spectrum that differs from the emission spectra of the other emitters; a driver circuit connected to the emitters; and a controller that calculates drive levels for the emitters and informs the driver circuit to apply the drive levels to the emitters, wherein calculation of the drive levels by the controller employs an illumination file selected from among a plurality of illumination files that respectively represent a plurality of different lighting patterns. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification