Single diode disinfection
Methods, systems, and devices for inactivating microorganisms are disclosed. An example light emitting device that inactivates microorganisms on a surface comprises a light emitter configured to emit a first light comprising a first wavelength in a range of 380 nanometers (nm) to 420 nm, a first light-converting material configured to convert a first portion of the first light to at least a second light comprising a second wavelength different from the first wavelength, and a second light-converting material configured to convert a second portion of the first light to at least a third light comprising a third wavelength different from the first wavelength, wherein at least the first light, the second light, and the third light mix to form a disinfecting white light, wherein the first light makes up at least 10% of the disinfecting white light.
1. A light emitting device that inactivates microorganisms on a surface, the light emitting device comprising:
a light emitter configured to emit a first light comprising a first peak wavelength in a range of 380 nanometers (nm) to 420 nm and having an irradiance at the surface sufficient to initiate inactivation of microorganisms on the surface;
a first light-converting material configured to convert only a first portion of the first light to at least a second light comprising a second peak wavelength different from the first peak wavelength; and
a second light-converting material configured to convert only a second portion of the first light to at least a third light comprising a third peak wavelength different from the first peak wavelength,
wherein at least the first light, the second light, and the third light mix to form a disinfecting white light.
2. The light emitting device of claim 1 , wherein the first light-converting material and the second light-converting material are homogeneously mixed together in a single light-converting layer.
3. The light emitting device of claim 1 , wherein the first portion of the first light corresponds to a first wavelength range.
4. The light emitting device of claim 1 , wherein the first portion of the first light corresponds to a percentage of the first light.
5. The light emitting device of claim 1 , wherein the disinfecting white light comprises a proportion of spectral energy, measured in the 380 nm to 420 nm wavelength range, greater than 20%.
6. The light emitting device of claim 1 , wherein the first light-converting material is further configured to convert a first portion of a fourth light.
7. The light emitting device of claim 6 , wherein the fourth light is the second light.
8. A light emitting device that inactivates microorganisms on a surface, the light emitting device comprising:
a light emitter configured to emit a first light comprising a first wavelength in a range of 380 nanometers (nm) to 420 nm;
a first light-converting material configured to convert only a first portion of the first light to at least a second light comprising a second wavelength different from the first wavelength; and
a second light-converting material configured to convert only a second portion of the first light to at least a third light comprising a third wavelength different from the first wavelength,
wherein at least the first light, the second light, and the third light mix to form a disinfecting white light, wherein the first light makes up at least 20% of the disinfecting white light.
9. The light emitting device of claim 8 , wherein the first light-converting material and the second light-converting material are homogeneously mixed together in a single light-converting layer.
10. The light emitting device of claim 8 , wherein the first portion of the first light corresponds to a first wavelength range.
11. The light emitting device of claim 8 , wherein the first portion of the first light corresponds to a percentage of the first light.
12. The light emitting device of claim 8 , wherein the first light-converting material is further configured to convert a first portion of a fourth light.
13. The light emitting device of claim 12 , wherein the fourth light is the second light.
14. A light emitting device that inactivates microorganisms on a surface, the light emitting device comprising:
a light emitter configured to emit a first light comprising a first wavelength in a range of 380 nanometers (nm) to 420 nm;
a first light-converting material configured to convert a first portion of the first light to at least a second light comprising a second wavelength different from the first wavelength; and
a second light-converting material configured to convert a second portion of the first light to at least a third light comprising a third wavelength different from the first wavelength,
wherein at least the first light, the second light, and the third light mix to form a disinfecting white light, wherein the first light makes up at least 10% of the disinfecting white light.
15. The light emitting device of claim 14 , wherein the first light makes up at least 20% of the disinfecting white light.
16. The light emitting device of claim 14 , wherein the first light-converting material and the second light-converting material are homogeneously mixed together in a single light-converting layer.
17. The light emitting device of claim 14 , wherein the first portion of the first light corresponds to a percentage of the first light.
18. The light emitting device of claim 14 , wherein the first portion of the first light corresponds to a first wavelength range.
19. The light emitting device of claim 14 , wherein the first light-converting material is further configured to convert a first portion of a fourth light.
20. The light emitting device of claim 19 , wherein the fourth light is the second light.