Lighting device that deactivates dangerous pathogens while providing visually appealing light
First Claim
1. A lighting device configured to deactivate MRSA bacteria in air in an environment, the lighting device comprising:
- a housing;
means for mounting the housing to a surface in the environment;
one or more first light-emitting elements comprising one or more light-emitting diodes (LEDs) arranged in the housing and configured to each produce disinfecting light having a wavelength in a first range of wavelengths; and
one or more second light-emitting elements arranged in the housing and configured to each produce disinfecting light having a wavelength in a second range of wavelengths different from the first range of wavelengths,wherein the disinfecting light produced by the one or more LEDs and the disinfecting light produced by the one or more second light-emitting elements mix to form a combined light, the combined light being visible light other than white light,and wherein the visible light has u′
, v′
coordinates on the 1976 CIE Chromaticity Diagram that lie outside of an area that is bounded (i) vertically between .007 Duv below and .007 Duv above a planckian locus defined by the ANSI C78.377-2015 color standard, and (ii) horizontally between a correlated color temperature (CCT) isoline of between approximately 1500K and 7000K.
1 Assignment
0 Petitions
Accused Products
Abstract
A lighting device configured to deactivate pathogens in an environment. The lighting device includes a housing, means for mounting the housing to a surface in the environment, one or more first light-emitting elements arranged in the housing and configured to each produce disinfecting light having a wavelength in a first range of wavelengths, and one or more second light-emitting elements arranged in the housing and configured to each produce disinfecting light having a wavelength in a second range of wavelengths different from the first range of wavelengths. The disinfecting light produced by the first light-emitting elements and the disinfecting light produced by the second light-emitting elements mix to form a combined light, the combined light being visible light other than white light.
66 Citations
23 Claims
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1. A lighting device configured to deactivate MRSA bacteria in air in an environment, the lighting device comprising:
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a housing; means for mounting the housing to a surface in the environment; one or more first light-emitting elements comprising one or more light-emitting diodes (LEDs) arranged in the housing and configured to each produce disinfecting light having a wavelength in a first range of wavelengths; and one or more second light-emitting elements arranged in the housing and configured to each produce disinfecting light having a wavelength in a second range of wavelengths different from the first range of wavelengths, wherein the disinfecting light produced by the one or more LEDs and the disinfecting light produced by the one or more second light-emitting elements mix to form a combined light, the combined light being visible light other than white light, and wherein the visible light has u′
, v′
coordinates on the 1976 CIE Chromaticity Diagram that lie outside of an area that is bounded (i) vertically between .007 Duv below and .007 Duv above a planckian locus defined by the ANSI C78.377-2015 color standard, and (ii) horizontally between a correlated color temperature (CCT) isoline of between approximately 1500K and 7000K. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lighting device configured to deactivate MRSA bacteria in air in an environment, the lighting device comprising:
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a housing; means for mounting the housing to a surface in the environment; one or more first light-emitting elements comprising one or more light-emitting diodes (LEDs) arranged in the housing and configured to each produce disinfecting light having a wavelength in a first range of wavelengths; one or more second light-emitting elements arranged in the housing and configured to each produce disinfecting light having a wavelength in a second range of wavelengths different from the first range of wavelengths; means for maintaining a junction temperature of the one or more LEDs below a maximum operating temperature of the one or more LEDs; and means for directing the disinfecting light produced by the one or more LEDs and the disinfecting light produced by the one or more second light-emitting elements, wherein the disinfecting light produced by the one or more LEDs and the disinfecting light produced by the one or more second light-emitting elements mix to form a combined light, the combined light being visible light other than white light, and wherein the visible light has u′
, v′
coordinates on the 1976 CIE Chromaticity Diagram that lie outside of an area that is bounded (i) vertically between 0.007 Duv below and 0.007 Duv above a planckian locus defined by the ANSI C78.377-2015 color standard, and (ii) horizontally between a correlated color temperature (CCT) isoline of between approximately 1500K and 7000K. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification