LED lamp for producing biologically-adjusted light including a cyan LED
View Patent ↗An LED lamp comprising a housing, a drive circuit configured to electrically couple to a power source, and an LED package that is electrically coupled to and driven by the drive circuit. The LED package comprises a first LED configured to emit light having a peak intensity of about 450 nm, a second LED configured to emit light having a peak intensity within the range from 475 nm to 495 nm, and a color conversion material configured to perform a Stokes shift on light having a wavelength within the range from 440 nm to 460 nm.
1. An LED lamp comprising:
a housing;
a drive circuit configured to electrically couple to a power source; and
an LED package that is electrically coupled to and driven by the drive circuit, the LED package comprising:
a first LED configured to emit light having a peak intensity of about 450 nm,
a second LED configured to emit light having a peak intensity within the range from 475 nm to 495 nm, and
a color conversion material configured to perform a Stokes shift on light having a wavelength within the range from 440 nm to 460 nm and also configured to emit light having a peak intensity within the range from 500 nm to 599 nm;
wherein the LED lamp is configured to self-tune to generate a light output spectrum depending on at least one of the lamp's location, the lamp's use, and the lamp's ambient environment; and
wherein the lamp is operable within a pre-sleep configuration, a phase-shift configuration, and a general lighting configuration.
2. The LED lamp according to claim 1 wherein light emitted by the LED lamp is configured to emit light that suppresses melatonin secretion in an observer.
3. The LED lamp according to claim 1 wherein the LED lamp does not comprise an LED configured to emit light having a peak intensity at a wavelength greater than 600 nm.
4. The LED lamp according to claim 1 wherein the LED lamp does not comprise a color conversion material configured to emit light having a peak intensity at a wavelength greater than 600 nm.
5. The LED lamp according to claim 1 wherein the LED package consists of:
a first LED configured to emit light having a peak intensity of about 450 nm;
a second LED configured to emit light having a peak intensity within the range from 475 nm to 495 nm; and
a color conversion material configured to perform a Stokes shift on light having a wavelength within the range from 440 nm to 460 nm and also configured to emit light having a peak intensity within the range from 500 nm to 599 nm.
6. The LED lamp according to claim 1 comprising a plurality of LED packages.
7. The LED lamp according to claim 6 wherein the plurality of LED packages consists of LED packages comprising:
a first LED configured to emit light having a peak intensity of about 450 nm;
a second LED configured to emit light having a peak intensity within the range from 475 nm to 495 nm; and
a color conversion material configured to perform a Stokes shift on light having a wavelength within the range from 440 nm to 460 nm and also configured to emit light having a peak intensity within the range from 500 nm to 599 nm.
8. The LED lamp according to claim 6 wherein the plurality of LED packages consists of LED packages consisting of:
a first LED configured to emit light having a peak intensity of about 450 nm;
a second LED configured to emit light having a peak intensity within the range from 475 nm to 495 nm; and
a color conversion material configured to perform a Stokes shift on light having a wavelength within the range from 440 nm to 460 nm and also configured to emit light having a peak intensity within the range from 500 nm to 599 nm.
9. The LED lamp according to claim 1 wherein light emitted by the LED lamp has a CRI of at least 90.
10. The LED lamp according to claim 1 wherein light emitted by the LED lamp has a CCT of less than 5000K.
11. The LED lamp according to claim 1 wherein light emitted by the LED lamp has a CRI #9 value of at least 40.
12. The LED lamp according to claim 11 wherein light emitted by the LED lamp has a CCT of less than 4000K.
13. The LED lamp according to claim 1 wherein the second LED configured to emit light having a peak intensity within the range from 480 nm to 490 nm.
14. The LED lamp according to claim 1 wherein the housing is configured to facilitate the attachment of the LED lamp to a troffer light fixture.
15. The LED lamp according to claim 1 further comprising an output select controller electrically coupled to the drive circuit to program the drive circuit to drive the LED package in one of a plurality of light output configurations, wherein the plurality of light output configurations includes a general lighting configuration and a phase-shift configuration.
16. The LED lamp according to claim 15 wherein light output in the phase-shift configuration has a peak intensity within the range from 475 nm to 490 nm that is greater than a peak intensity within the range from 475 nm to 490 nm of the light output in the general lighting configuration.
17. An LED lamp comprising:
a housing;
a drive circuit configured to electrically couple to a power source; and
a plurality of LED packages that are electrically coupled to and driven by the drive circuit, each LED package of the plurality of LED packages comprising:
a first LED configured to emit light having a peak intensity of about 450 nm,
a second LED configured to emit light having a peak intensity within the range from 475 nm to 495 nm, and
a color conversion material configured to perform a Stokes shift on light having a wavelength within the range from 440 nm to 460 nm and also configured to emit light having a peak intensity within the range from 500 nm to 599 nm;
wherein the LED lamp does not comprise an LED or a color conversion material configured to emit light having a wavelength greater than 600 nm; and
wherein light emitted by the LED lamp has a CRI of at least 90;
wherein the LED lamp is configured to self-tune to generate a light output spectrum depending on at least one of the lamp's location, the lamp's use, and the lamp's ambient environment; and
wherein the lamp is operable within a pre-sleep configuration, a phase-shift configuration, and a general lightning configuration.
18. The LED lamp according to claim 17 wherein light emitted by the LED lamp has a CCT of less than 5000K and a CRI #9 value of at least 40.
19. An LED lamp comprising:
a housing;
a drive circuit configured to electrically couple to a power source; and
an LED package that is electrically coupled to and driven by the drive circuit, the LED package consisting of:
a first LED configured to emit light having a peak intensity of about 450 nm,
a second LED configured to emit light having a peak intensity within the range from 475 nm to 490 nm, and
a color conversion material configured to perform a Stokes shift on light having a wavelength within the range from 440 nm to 460 nm and also configured to emit light having a peak intensity within the range from 500 nm to 599 nm;
wherein light emitted by the LED lamp has a CRI of at least 90, a CRI #9 value of at least 40, and a CCT of less than 4000K;
wherein the LED lamp is configured to self-tune to generate a light output spectrum depending on at least one of the lamp's location, the lamp's use, and the lamp's ambient environment; and
wherein the lamp is operable within a pre-sleep configuration, a phase-shift configuration, and a general lighting configuration.