Color tunable illumination device
First Claim
1. A color tunable illumination device, comprising:
- a substrate including a first light emitting diode (LED), a second LED, and a third LED, each of the first, second, and third LEDs emitting light at a different wavelength than either of the other LEDs; and
an integrated circuit LED driver being electrically responsive to a data signal, a clock signal, and a power signal for driving the first, second, and third LEDs, wherein the integrated circuit LED driver is connectable to a bus comprising at least two conductors configured to carry the data signal and the clock signal, the integrated circuit LED driver comprising;
a plurality of pulse width modulation registers selectable in combination to drive the first LED, second LED, and third LED independent of one another to a blink rate and an intensity to control the color produced by the combination of the LEDs; and
an electronically programmed address circuit for storing an address therein, the integrated circuit LED driver being responsive to the data signal upon receiving a corresponding address in the data signal; and
an optical diffuser enclosing at least a portion of the first, second, and third LEDs.
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Accused Products
Abstract
A decorative illumination device for use in a lighting system including a command controller, a plurality of illumination devices and a flexible cord interconnecting each. The command controller includes a microcontroller that provides a data signal and a clock signal. The data signal instructs a plurality of addresses corresponding to the lighting devices. Each illumination device has at least three light emitting diodes (LEDs). The LEDs each emit light at a different wavelength than either of the other LEDs. An integrated circuit LED is responsive to the data signal, clock signal, and power signal and drives the first, second, and third LEDs by to a blink rate and intensity. The LED driver includes a plurality of pulse width modulation registers that are selectable in combination to drive the LEDs to a blink rate and intensity independent of one another.
110 Citations
18 Claims
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1. A color tunable illumination device, comprising:
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a substrate including a first light emitting diode (LED), a second LED, and a third LED, each of the first, second, and third LEDs emitting light at a different wavelength than either of the other LEDs; and an integrated circuit LED driver being electrically responsive to a data signal, a clock signal, and a power signal for driving the first, second, and third LEDs, wherein the integrated circuit LED driver is connectable to a bus comprising at least two conductors configured to carry the data signal and the clock signal, the integrated circuit LED driver comprising; a plurality of pulse width modulation registers selectable in combination to drive the first LED, second LED, and third LED independent of one another to a blink rate and an intensity to control the color produced by the combination of the LEDs; and an electronically programmed address circuit for storing an address therein, the integrated circuit LED driver being responsive to the data signal upon receiving a corresponding address in the data signal; and an optical diffuser enclosing at least a portion of the first, second, and third LEDs. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A red-green-blue illumination device, comprising:
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a substrate including at a red light emitting diode (LED), a blue LED, and a green LED monolithically disposed on said substrate; and an integrated circuit LED driver responsive to a data signal, a clock signal, and a power signal for driving the red, blue, and green LEDs, wherein the integrated circuit LED driver is connectable to a bus comprising at least two conductors configured to carry the data signal and the clock signal, the integrated circuit LED driver comprising; a plurality of pulse width modulation registers selectable in combination to drive the red LED, blue LED, and green LED independent of one another to a blink rate and an intensity to control the color produced by the combination of the LEDs; and an electronically programmed address circuit for storing an address therein, the integrated circuit LED driver being responsive to the data signal upon receiving a corresponding address in the data signal; and an optical diffuser enclosing at least a portion of the red, blue, and green LEDs. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An integrated circuit red-green-blue color management LED driver being electrically responsive to a data signal, a clock signal, and a power signal for driving a red LED, a blue LED, and a green LED, wherein the color management LED) driver is connectable to a bus comprising at least two conductors configured to carry the data signal and the clock signal, the color management LED driver comprising:
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a plurality of pulse width modulation registers selectable in combination to drive the LEDs independent of one another to a blink rate and an intensity to control the color produced by the combination of the LEDs; and an electronically programmed address circuit for storing an address therein, the integrated circuit LED driver being responsive to the data signal upon receiving a corresponding address in the data signal. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification