Solid state emitter package including red and blue emitters
View Patent ↗A solid state emitter package includes a principally red solid state emitter having peak emissions within 590 nm to 680 nm, a principally blue solid state emitter having peak emissions within 400 nm to 480 nm, and at least one of a common leadframe, common substrate, and common reflector, with the package being devoid of any principally green solid state emitters having peak emissions between 510 nm and 575 nm. A solid state emitter package may include at least one electrically conductive path associated with the solid state emitter package that is not in electrical communication with any solid state emitter of the solid state emitter package, with such electrically conductive path being susceptible to inclusion of a jumper or a control element.
1. A solid state emitter package comprising:
a plurality of electrically activated solid state emitters including at least one principally red solid state emitter having peak emissions within a wavelength range of from 590 nm to 680 nm, at least one principally blue solid state emitter having peak emissions within a wavelength range of from 400 nm to 480 nm, and at least one supplemental electrically activated solid state emitter having peak emissions within a wavelength range of from above 575 nm to 590 nm, wherein the solid state emitter package is devoid of any principally green solid state emitter having peak emissions within a wavelength range of between 510 nm and 575 nm; and
at least one of the following elements (a) to (c):
(a) a common leadframe including a plurality of conductive leads arranged to supply current to the plurality of solid state emitters;
(b) a common substrate arranged to structurally support the plurality of solid state emitters; and
(c) a common reflector arranged to reflect light emissions of each solid state emitter of the plurality of solid state emitters.
2. The solid state emitter package of claim 1 , wherein current is independently controllable to the at least one principally red solid state emitter and the at least one principally blue solid state emitter.
3. The solid state emitter package of claim 1 , further comprising a lumiphoric material that is arranged to convert at least a portion of emissions from any of the at least one principally red solid state emitter and the at least one principally blue solid state emitter, wherein the lumiphoric material generates emissions having a peak wavelength that is different from a peak wavelength of each of the at least one principally red and the at least one principally blue solid state emitter.
4. The solid state emitter package of claim 3 , wherein the lumiphoric material is spatially separated from any of the at least one principally red solid state emitter and the at least one principally blue solid state emitter.
5. The solid state emitter package of claim 1 , being devoid of any lumiphoric material that is arranged to convert emissions from at least one principally red or at least one principally blue solid state emitter of the plurality of solid state emitters.
6. The solid state emitter package of claim 1 , being devoid of any additional solid state emitter.
7. The solid state emitter package of claim 1 , characterized by any of the following:
the at least one principally red solid state emitter comprises a plurality of principally red solid state emitters; and
the at least one principally blue solid state emitter comprises a plurality of principally blue solid state emitters.
8. The solid state emitter package of claim 1 , characterized by any of the following:
the at least one principally red solid state emitter comprises a plurality of principally red solid state emitters, including at least two principally red solid state emitters having peak emissions of different wavelengths; and
the at least one principally blue solid state emitter comprises a plurality of principally blue solid state emitters, including at least two principally blue solid state emitters having peak emissions of different wavelengths.
9. The solid state emitter package of claim 1 , comprising at least two of elements (a), (b), and (c).
10. The solid state emitter package of claim 1 , further comprising at least one of a mixing element and a scattering element arranged to promote mixing between emissions of the at least one principally red solid state emitter and the at least one principally blue solid state emitter.
11. The solid state emitter package of claim 1 , wherein each solid state emitter of the plurality of solid state emitters is arranged with lateral edge spacing of less than about 1.0 mm from at least one adjacent solid state emitter of the plurality of solid state emitters.
12. The solid state emitter package of claim 1 , further comprising:
a plurality of conductive leads in electrical communication with the plurality of solid state emitters; and
at least two spatially separated conductive leads in electrical communication with one another to provide at least one electrically conductive path through the solid state emitter package that is not in electrical communication with any solid state emitter of the solid state emitter package.
13. A lamp or light fixture comprising at least one solid state emitter package according to claim 1 .
14. The lamp or light fixture of claim 13 , being adapted to promote plant growth by emitting an electromagnetic spectrum appropriate for photosynthesis.
15. A method for promoting plant growth, the method comprising illuminating at least a portion of a plant with the lamp or light fixture of claim 14 .
16. The solid state emitter package of claim 1 , further comprising at least one additional supplemental solid state emitter having peak emissions within a wavelength range of from 480 nm to below 510 nm.
17. The solid state emitter package of claim 1 , wherein current is independently controllable to the at least one principally red solid state emitter, to the at least one principally blue solid state emitter, and to the at least one supplemental solid state emitter.
18. A solid state emitter package comprising:
a plurality of electrically activated solid state emitters;
a plurality of conductive leads in electrical communication with the plurality of solid state emitters; and
at least two spatially separated conductive leads in electrical communication with one another to provide at least one electrically conductive path through the solid state emitter package that is not in electrical communication with any solid state emitter of the solid state emitter package.
19. The solid state emitter package of claim 18 , comprising at least one of the following elements (a) to (c):
(a) a common leadframe including a plurality of conductive leads arranged to supply current to the plurality of solid state emitters;
(b) a common substrate arranged to structurally support the plurality of solid state emitters; and
(c) a common reflector arranged to reflect light emissions of each solid state emitter of the plurality of solid state emitters.
20. The solid state emitter package of claim 18 , wherein the at least one electrically conductive path associated with the solid state emitter package comprises at least one control element.