Single-emitter lighting device that outputs a minimum amount of power to produce integrated radiance values sufficient for deactivating pathogens
AssigneeKenall Manufacturing Company
InventorsJames W. Hawkins, Nathan D. Heiking
Life of this patent
Estimating the term…
Abstract
A lighting device configured to deactivate dangerous pathogens (e.g., MRSA bacteria) in an environment. The lighting device includes at least one lighting element configured to provide light. At least a first component of the light comprising light having a wavelength of between 400 nm and 420 nm, and at least a second component of the light comprising light having a wavelength of greater than 420 nm. The first component of light has a minimum integrated irradiance of 0.05 mW/cm2 measured from any unshielded point in the environment that is 1.5 m from any point on any external-most luminous surface of the lighting device.
Claims24
A lighting device configured to deactivate MRSA bacteria in an environment, the lighting device comprising:
- at least one lighting element configured to provide light, at least a first component of the light comprising light having a wavelength of between 400 nm and 420 nm, and at least a second component of the light comprising light having a wavelength of greater than 420 nm,
- wherein the first component of light has a minimum integrated irradiance of 0.01 mW/cm2 measured from any unshielded point in the environment that is 1.5 m from any point on any external-most luminous surface of the lighting device, and
- wherein the light provided by the at least one lighting element is produced from a single light source.
A lighting device configured to deactivate MRSA bacteria in an environment, the lighting device comprising:
- at least one light-emitting element configured to emit light having a wavelength of between 400 nm and 420 nm;
- at least one light converting element,
- wherein at least a first component of the light emitted by the at least one light-emitting element travels through the at least one light converting element without alteration, and at least a second component of the light emitted by the at least one light-emitting element is converted into light having a wavelength of greater than 420 nm, and
- wherein the first component of the light has a minimum integrated irradiance of 0.01 mW/cm2 measured from any unshielded point in the environment that is 1.5 m from any point on any external-most luminous surface of the lighting device, and
- wherein the light provided by the at least one light-emitting element is produced from a single light source.
A method of deactivating MRSA bacteria in an environment, the method comprising:
- providing light from at least one lighting element of a lighting device installed in the environment, 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 has a wavelength of between 400 nm and 420 nm and has a minimum integrated irradiance of .01 mW/cm2 measured from any unshielded point in the environment that is 1.5 m from any point on any external-most luminous surface of the lighting device, and wherein at least a second component of the light has a wavelength of greater than 420 nm.
Dependencies are inferred from the claim text.