Spectrally calibratable multi-element RGB LED light source
First Claim
Patent Images
1. A lighting system, comprising:
- (a) an LED;
(b) a current regulator circuit in communication with said LED; and
(c) a calibration circuit in communication with said current regulator.
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Abstract
An LED lighting system is disclosed. The lighting system includes means to calibrate the light temperature and intensity between multiple modules in one system, or to calibrate the light temperature and intensity against a known reference standard. The lighting system may be used in many illumination applications, including the cabin sections of aircraft and watercraft.
108 Citations
26 Claims
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1. A lighting system, comprising:
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(a) an LED;
(b) a current regulator circuit in communication with said LED; and
(c) a calibration circuit in communication with said current regulator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A lighting system, comprising:
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(a) a plurality of LED arrays, wherein each of said LED arrays is operable to generate light of a distinct color, at least two of said LED arrays are operable to generate light of two distinct colors, and wherein said plurality of LED arrays are operable together to generate light of a spectrum of colors;
(b) a calibration circuit in communication with each of said LED arrays, wherein said calibration circuit is operable to regulate the current applied to each of said LED arrays in order to produce light from each of said LED arrays of a standard temperature and intensity; and
(c) a controller in communication with said calibration unit. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of controlling a lighting system, wherein said method comprises the steps of:
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(a) applying current to an LED;
(b) measuring the voltage across a current sensor in series with the LED;
(c) comparing the voltage across the current sensor with an adjusted reference voltage; and
(d) emitting an electrical signal to a drive unit in series with the LED and the current sensor to cause the voltage across the current sensor to approximately equal the adjusted reference voltage. - View Dependent Claims (20, 21, 22, 23)
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24. A method of testing a light module in a lighting system, said method comprising the steps of:
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(a) measuring a value for a light output from the light module with a light sensor;
(b) transmitting the light output value from the light sensor to a processor;
(c) transmitting a signal from the processor to the light module to adjust a calibration value of the light module in response to the light output value, in order to adjust the light output value into a prescribed range;
(d) measuring a value for a light output from the light module with the light sensor;
(e) transmitting the light output value from the light sensor to a processor; and
(f) comparing the light output value to the prescribed range to confirm that the light output value from the light module is within the prescribed range. - View Dependent Claims (25, 26)
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Specification