Tunable LED lamp for producing biologically-adjusted light
First Claim
1. A tunable light-emitting diode (LED) lamp for producing biologically-adjusted light, comprising:
- a housing comprising a first cap positioned at a first end of the housing and a second cap positioned at a second end of the housing, each of the first and second ends comprising an electrical contact;
a power circuit disposed within the housing having electrical leads attached to at least one of the first and second caps;
a driver circuit disposed within the housing and electrically coupled with the power circuit; and
a plurality of LED dies electrically coupled to and driven by the driver circuit;
wherein the driver circuit is adapted to drive the plurality of LED dies to emit a phase-shift light having a first spectral power distribution, a general illuminating light having a second spectral power distribution, and a pre-sleep light having a third spectral power distribution;
wherein the phase-shift light is configured to affect a first biological effect in an observer;
wherein the pre-sleep light is configured to affect a second biological effect in an observer;
wherein in the pre-sleep light the driver circuit is adapted to drive the plurality of LED dies such that a blue output intensity level, in a visible spectral output range of between 380 nm and 485 nm, is less than 10% of a relative spectral power of any other peaks in the visible spectral output above 485 nm; and
wherein at least one of the first or second caps is adapted to couple with a tombstone associated with a troffer fixture thereby positioning the first or second cap in electrical communication with the tombstone.
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Accused Products
Abstract
A tunable LED lamp for producing biologically-adjusted light having a housing, a power circuit, a driver circuit disposed within the housing and electrically coupled with the power circuit, and a plurality of LED dies electrically coupled to and driven by the driver circuit. The driver circuit may drive the plurality of LED dies to emit a phase-shift light having a first spectral power distribution, a general illuminating light having a second spectral power distribution, and a pre-sleep light having a third spectral power distribution. The phase-shift light may be configured to affect a first biological effect in an observer, and the pre-sleep light may be configured to affect a second biological effect in an observer. The LED lamp may be configured to fit in a troffer fixture. The LED lamp may also be a troffer fixture.
202 Citations
19 Claims
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1. A tunable light-emitting diode (LED) lamp for producing biologically-adjusted light, comprising:
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a housing comprising a first cap positioned at a first end of the housing and a second cap positioned at a second end of the housing, each of the first and second ends comprising an electrical contact; a power circuit disposed within the housing having electrical leads attached to at least one of the first and second caps; a driver circuit disposed within the housing and electrically coupled with the power circuit; and a plurality of LED dies electrically coupled to and driven by the driver circuit; wherein the driver circuit is adapted to drive the plurality of LED dies to emit a phase-shift light having a first spectral power distribution, a general illuminating light having a second spectral power distribution, and a pre-sleep light having a third spectral power distribution; wherein the phase-shift light is configured to affect a first biological effect in an observer; wherein the pre-sleep light is configured to affect a second biological effect in an observer; wherein in the pre-sleep light the driver circuit is adapted to drive the plurality of LED dies such that a blue output intensity level, in a visible spectral output range of between 380 nm and 485 nm, is less than 10% of a relative spectral power of any other peaks in the visible spectral output above 485 nm; and wherein at least one of the first or second caps is adapted to couple with a tombstone associated with a troffer fixture thereby positioning the first or second cap in electrical communication with the tombstone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A tunable light-emitting diode (LED) lighting device for producing biologically-adjusted light, comprising:
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a housing; a driver circuit; a plurality of LED dies carried by the housing and electrically coupled to and driven by the driver circuit; and a communication device positioned in electrical communication with the driver circuit; wherein the driver circuit is adapted to drive the plurality of LED dies to emit a phase-shift light having a first spectral power distribution, a general illuminating light having a second spectral power distribution, and a pre-sleep light having a third spectral power distribution; wherein the phase-shift light is configured to affect a first biological effect in an observer; wherein the pre-sleep light is configured to affect a second biological effect in an observer; wherein in the phase-shift light the driver circuit is adapted to drive the plurality of LED dies such that a blue output intensity level, in a visible spectral output range of between 455 nm and 485 nm, is greater than 125% of a relative spectral power of any other peaks in the visible spectral output above 485 nm; and wherein the communication device is adapted to receive an input; and wherein the driver circuit is adapted to operate the plurality of LED dies responsive to the input received by the communication device. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A tunable light-emitting diode (LED) lighting device for producing biologically-adjusted light, comprising:
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a troffer housing; a driver circuit; and a plurality of LED dies carried by the troffer housing and electrically coupled to and driven by the driver circuit; wherein the driver circuit is adapted to drive the plurality of LED dies to emit a phase-shift light having a first spectral power distribution, a general illuminating light having a second spectral power distribution, and a pre-sleep light having a third spectral power distribution; wherein the phase-shift light is configured to affect a first biological effect in an observer; wherein the pre-sleep light is configured to affect a second biological effect in an observer; and wherein in the phase-shift light the driver circuit is adapted to drive the plurality of LED dies such that a blue output intensity level, in a visible spectral output range of between 455 nm and 485 nm, is within a range from 150% to 250% of a relative spectral power of any other peaks in the visible spectral output above 485 nm.
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Specification