An interior aircraft lighting
assembly (2) comprises: at least one
infrared lighting device (22a, 22b, 22c) for emitting
infrared light; at least one further lighting device (4, 26a, 26b, 26c) for emitting visible light; a lighting
assembly controller (12) for controlling an operation of the at least one
infrared lighting device (22a, 22b, 22c) and of the at least one further lighting device (4, 26a, 26b, 26c); a supplementary infrared lighting device controller (36); and a power
supply network, which is configured for supplying
electric power from the lighting
assembly controller (12) to the at least one further lighting device (4, 26a, 26b, 26c). The supplementary infrared lighting device controller (36) is tapped into the power
supply network. The lighting assembly controller (12) is configured to provide an electric trigger pulse on the power
supply network for activating the at least one infrared lighting device (22a, 22b, 22c). The supplementary infrared lighting device controller (36) is coupled to the at least one infrared lighting device (22a, 22b, 22c) and is configured to enable
power flow to the at least one infrared lighting device (22a, 22b, 22c) in response to detecting the electric trigger pulse, provided by the lighting assembly controller (12) on the power supply network; and the supplementary infrared lighting device controller (36) is configured to cause the at least one infrared lighting device 22a, 22b, 22c) to emit infrared light for an infrared lighting duration, which is longer than a duration of the electric trigger pulse.