Abstract:
In an example, a method of operating an ultraviolet (UV) light source includes providing a supply power to the UV light source, and activating, using the supply power, the UV light source to emit UV light during a series of activation cycles. The method also includes, during at least one activation cycle in the series, sensing the UV light emitted by the UV light source to measure an optical parameter of the UV light. The optical parameter is related to an antimicrobial efficacy of the UV light. The method further includes adjusting, based on the measured optical parameter, an electrical parameter of the supply power to maintain a target antimicrobial efficacy of the UV light over the series of activation cycles.
Abstract:
In an example, a method of operating an ultraviolet (UV) light source includes providing a supply power to the UV light source, and activating, using the supply power, the UV light source to emit UV light during a series of activation cycles. The method also includes, during at least one activation cycle in the series, sensing the UV light emitted by the UV light source to measure an optical parameter of the UV light. The optical parameter is related to an antimicrobial efficacy of the UV light. The method further includes adjusting, based on the measured optical parameter, an electrical parameter of the supply power to maintain a target antimicrobial efficacy of the UV light over the series of activation cycles.
Abstract:
An aircraft and method of deterring avian species from the aircraft include a lighting system including a lighting assembly coupled to the exterior. The lighting assembly includes an ultraviolet (UV) light-emitting element that emits UV light outside of the aircraft.
Abstract:
In an example, a method of operating an ultraviolet (UV) light source includes providing a supply power to the UV light source, and activating, using the supply power, the UV light source to emit UV light during a series of activation cycles. The method also includes, during at least one activation cycle in the series, sensing the UV light emitted by the UV light source to measure an optical parameter of the UV light. The optical parameter is related to an antimicrobial efficacy of the UV light. The method further includes adjusting, based on the measured optical parameter, an electrical parameter of the supply power to maintain a target antimicrobial efficacy of the UV light over the series of activation cycles.
Abstract:
In an example, a method of operating an ultraviolet (UV) light source includes providing a supply power to the UV light source, and activating, using the supply power, the UV light source to emit UV light during a series of activation cycles. The method also includes, during at least one activation cycle in the series, sensing the UV light emitted by the UV light source to measure an optical parameter of the UV light. The optical parameter is related to an antimicrobial efficacy of the UV light. The method further includes adjusting, based on the measured optical parameter, an electrical parameter of the supply power to maintain a target antimicrobial efficacy of the UV light over the series of activation cycles.
Abstract:
In an example, a system for disinfecting a lavatory in a vehicle includes a UV light source in the lavatory and configured to emit UV light when activated. The system also includes a switch actuatable between a first state and a second state. The switch is configured to: (i) while in the first state, provide an input power from a power source of the vehicle to a lavatory device in the lavatory, and (ii) while in the second state, provide the input power from the power source to the UV light source and cease providing the input power to the lavatory device. The system further includes an activation control system configured to actuate the switch between the first state and the second state to deactivate and activate the UV light source, respectively. The input power is insufficient to simultaneously operate the lavatory device and activate the UV light source.
Abstract:
A method of selecting a lighting pattern of an aircraft is disclosed herein. The method comprises exposing a photoluminescent element to electromagnetic radiation emitted from a light source of the aircraft. The light source has (a) a spectral power distribution and (b) an illumination level. The method also comprises calculating a total energy absorbed by the photoluminescent element based on (a) the spectral power distribution, (b) the illumination level, and (c) an exposure duration. The method comprises correlating the total energy absorbed to a discharge duration based on a normalized photoluminescent response function of the photoluminescent element. And the method also comprises verifying that the (a) spectral power distribution, (b) illumination level, and (c) exposure duration of the light source are in compliance with operational guidelines for the light source and the photoluminescent element based on the discharge duration.
Abstract:
A method of selecting a lighting pattern of an aircraft is disclosed herein. The method comprises exposing a photoluminescent element to electromagnetic radiation emitted from a light source of the aircraft. The light source has (a) a spectral power distribution and (b) an illumination level. The method also comprises calculating a total energy absorbed by the photoluminescent element based on (a) the spectral power distribution, (b) the illumination level, and (c) an exposure duration. The method comprises correlating the total energy absorbed to a discharge duration based on a normalized photoluminescent response function of the photoluminescent element. And the method also comprises verifying that the (a) spectral power distribution, (b) illumination level, and (c) exposure duration of the light source are in compliance with operational guidelines for the light source and the photoluminescent element based on the discharge duration.