Single-emitter lighting device that outputs a minimum amount of power to produce integrated radiance values sufficient for deactivating pathogens
First Claim
1. A method of deactivating MRSA bacteria in a volumetric space over a period of time, the method comprising:
- providing light from at least one lighting element of each of one or more lighting fixtures installed in the volumetric space, wherein the light provided by the at least one lighting element is produced from a single light source, wherein at least a first component of the light is a disinfecting light having a wavelength of about 405 nm and has a minimum integrated irradiance of 0.01 mW/cm2, and wherein at least a second component of the light has a wavelength of greater than 420 nm;
receiving first data associated with a desired illuminance level for the volumetric space and second data indicative of desired correlated color temperature for the volumetric space;
determining, based on the first and second data, an arrangement of the one or more lighting fixtures in the volumetric space; and
determining, based on the second data and the volumetric space, a total radiometric power to be applied via the one or more lighting fixtures to produce a desired power density measured at any exposed surface within the volumetric space during the period of time, the desired power density comprising the minimum integrated irradiance of the disinfecting light equal to 0.01 mW/cm2.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and lighting systems to deactivating deactivate MRSA bacteria in a volumetric space over a period of time. At least one lighting element of each of one or more lighting fixtures provide light. The light includes a first disinfecting light having a wavelength of about 405 nm and a minimum integrated irradiance of 0.01 mW/cm2, and a second component having a wavelength of greater than 420 nm. The one or more lighting elements of the one or more lighting fixtures apply a determined total radiometric power to produce a desired power density measured at any exposed surface within the volumetric space during the period of time. The minimum power density includes a minimum integrated irradiance of the disinfecting light equal to 0.01 mW/cm2.
69 Citations
20 Claims
-
1. A method of deactivating MRSA bacteria in a volumetric space over a period of time, the method comprising:
-
providing light from at least one lighting element of each of one or more lighting fixtures installed in the volumetric space, wherein the light provided by the at least one lighting element is produced from a single light source, wherein at least a first component of the light is a disinfecting light having a wavelength of about 405 nm and has a minimum integrated irradiance of 0.01 mW/cm2, and wherein at least a second component of the light has a wavelength of greater than 420 nm; receiving first data associated with a desired illuminance level for the volumetric space and second data indicative of desired correlated color temperature for the volumetric space; determining, based on the first and second data, an arrangement of the one or more lighting fixtures in the volumetric space; and determining, based on the second data and the volumetric space, a total radiometric power to be applied via the one or more lighting fixtures to produce a desired power density measured at any exposed surface within the volumetric space during the period of time, the desired power density comprising the minimum integrated irradiance of the disinfecting light equal to 0.01 mW/cm2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of providing doses of light sufficient to deactivate MRSA bacteria throughout a volumetric space over a period of time, the method comprising:
-
installing an arrangement of one or more lighting fixtures in the volumetric space, each of the one or more lighting fixtures configured to at least partially provide, via at least one lighting element, disinfecting light having a wavelength of about 405 nm; and applying, via the one or more lighting fixtures, a determined radiometric power to the volumetric space, wherein the determined radiometric power produces a minimum power density measured at any exposed surface within the volumetric space during the period of time, the minimum power density comprising a minimum integrated irradiance of the disinfecting light equal to 0.01 mW/cm2, wherein applying the determined radiometric power comprises providing light from the at least one lighting element of each of the one or more lighting fixtures, wherein the light provided the at least one lighting element is produced from a single light source, wherein at least a first component of the light is the disinfecting light, and wherein at least a second component of the light has a wavelength of greater than 420 nm. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. A lighting system configured to deactivate MRSA bacteria in a volumetric space over a period of time, the lighting system comprising:
-
one or more lighting fixtures each configured at least partially to provide, via at least one lighting element, disinfecting light having a wavelength of about 405 nm; and one or more control devices configured to; receive first data associated with a desired illuminance level for the volumetric space, and second data indicative of desired correlated color temperature for the volumetric space, determine, based on the first and second data, an arrangement of the one or more lighting fixtures in the volumetric space, determine, based on the second data and the volumetric space, a total radiometric power to be applied via the one or more lighting fixtures to produce a desired power density measured at any exposed surface within the volumetric space during the period of time, the desired power density comprising a minimum integrated irradiance of the disinfecting light equal to 0.01 mW/cm2, and cause the at least one lighting element of each of the one or more lighting fixtures to provide light, wherein the light provided by the at least one lighting element is produced from a single light source, wherein at least a first component of the light is the disinfecting light, and wherein at least a second component of the light has a wavelength of greater than 420 nm. - View Dependent Claims (17, 18, 19, 20)
-
Specification