The present disclosure is directed to a blended wing body aircraft including a blended wing body, wherein the blended wing body is characterized by having no clear dividing line between wings and a main body along a leading edge of the aircraft; a cabin located within the main body and a transitional portion of the blended wing body; and a plurality of transparent panels in a ceiling of the cabin configured to transmit light from outside the blended wing body aircraft to inside the cabin.

A method may comprise: commanding, by a processor, a lighting system to generate a first desired effect in accordance with a first spectral weighting mode; determining, by the processor, a first optimized predetermined variable within a first predetermined domain to generate the desired effect based on the first spectral weighting mode; commanding, by the processor, the lighting system to transition from the first desired effect to a second desired effect, the second desired effect in accordance with a second spectral weighting mode; and determining by the processor, a second optimized predetermined variable within a second predetermined domain to generate the second desired effect based on the second spectral weighting mode, the first optimized predetermined variable being different from the second optimized predetermined variable.

A method for controlling lighting in an interior of an aircraft, a lighting control system, and computer program product. The method includes: determining a departure time adjusted for an offset from GMT at a departure location and an arrival time adjusted for an offset from GMT at an arrival location as epoch times; generating a flight time with GMT offsets based on subtracting the departure time from the arrival time; determining an FMS flight time representing the expected time that the aircraft will be in flight between the departure location and the arrival location; generating a simulation ratio modifier based on dividing the FMS flight time by the flight time with GMT offsets; applying the simulation ratio modifier to periods of a day to generate scaled durations for periods of the day in a lighting program; and applying the program to control the cabin lighting on the aircraft.

A lighting assembly for an aircraft includes a visible light source generating visible light and an ultraviolet light source generating ultraviolet light. The visible light source is disposed adjacent to the ultraviolet light source. The visible light source illuminates a first illumination area with the visible light when the lighting assembly operates in a first operation mode. The ultraviolet light source illuminates a second illumination area with the ultraviolet light when the lighting assembly operates in a second mode of operation. The first illumination area substantially overlaps the second illumination area.

An illuminated aircraft passenger cabin gasper comprises an air outlet for outputting a flow of air into an aircraft passenger cabin and an air guide, movably arranged within the air outlet for adjusting the flow of air that includes a light guide. The gasper also includes at least one light source, arranged adjacent to the light guide for coupling light into the light guide. The light guide has a light output surface for coupling light out of the light guide into the aircraft passenger cabin.

A sanitization system for an aircraft may comprise: a lighting system disposed in the aircraft cabin, the lighting system including a plurality of sanitization lights, the plurality of sanitization lights configured to emit UV-C radiation; an electrical port in electrical communication with the lighting system; an external power source disposed away from the aircraft; and an electrical cable coupled to the external power source, the electrical cable configured to removably couple to the electrical port to provide electrical power to the plurality of sanitization lights.

A light assembly may comprise: a light array comprising a plurality of light emitting diodes (LEDs), each light emitting diode (LED) configured to emit an electromagnetic radiation having a wavelength, the wavelength of each LED being different, a first LED in the light array configured to emit a first wavelength between 414 nm and 474 nm; and a non-linear optical layer disposed adjacent to the first LED, the nonlinear optical layer configured to output the first wavelength and a second wavelength, the second wavelength being between 207 nm and 237 nm.

There is described a vehicle color-lighting control system. The system comprises at least one sidewall (101) having an electrically-controllable coloring mechanism (106) embedded therein and arranged for coloring at least a portion of the at least one sidewall with at least one first color; a lighting sub-system (110) comprising at least one light source (112) mounted within the vehicle to illuminate an interior of the vehicle with at least one second color in a first state and with at least one third color in a second state; and a controller coupled to the coloring mechanism and the lighting sub-system and configured for operating the coloring mechanism to color the at least one portion of the at least one sidewall with the at least one first color and concurrently illuminate the interior of the vehicle with the at least one second color.

A system for providing and monitoring UV illumination in an interior of an aircraft includes at least one switchable UV light source; a light detector, responsive to visible light and UV light and configured for providing sensor outputs regarding detected light; and a controller for monitoring an operational status of the at least one switchable UV light source. The controller is configured to determine the operational status of the at least one switchable UV light source by comparing a first sensor output, provided by the light detector when the at least one switchable UV light source is activated, with a second sensor output, provided by the light detector when the at least one switchable UV light source is deactivated.

A method of verifying sanitization of an area may comprise: emitting, via a sanitization system, a UV-C light towards a desired surface to be sanitized, the UV-C light including a first wavelength between 200 nm and 280 nm; and determining the desired surface is being sanitized by verifying whether the desired surface absorbs the UV-C light and re-emits a visible light.