A navigation light 10 comprises an aerodynamically profiled housing 11A, 11B fittable to an appropriate flat surface on an aircraft, ship or land vehicle, the housing 11A, 11B enclosing a light source 21 or having means to access the light from a separate light source and an optical diffuser 15. The optical diffuser 15 has a window 13 forming part of the aerodynamic profiling and the geometrical design of the diffuser 15 is such that all light passed into it is emitted uniformly throughout the angles prescribed by regulations for that aeroplane, ship or land vehicle. The diffuser15 may surround the light source 21 and reflectors 17, 18 may be provided to prevent glare and to ensure that all light emitted from the light source 21 emerges from the diffuser 15. The light source(s) 21 could be light emitting diodes (LEDs) and the housing 11A, 11B is designed to be considerably smaller than present designs so reducing aerodynamic drag. The combination of diffuser 15 and LEDs 21 offers great improvements in reliability and reduced maintenance and the diffuser 15 is adapted to eliminate glare. A plurality of lights sources 21 may be arranged side by side or in an elongated matrix. A variation of the design uses an adjacent light source with the light taken into the housing via either fibre optics or a light transmitting element (25 fig. 11).
Navigation lights
2017-01-11
Patent
Electronic Resource
English
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
Anti-collision navigation test method for navigation lights and signal lights
European Patent Office | 2023
|Navigation lights for port of Leith
Engineering Index Backfile | 1952
|Lookout Versus Lights: Some Sidelights on the Dark History of Navigation Lights
Online Contents | 2006
|The Evolution of Navigation Lights for Ships
Online Contents | 1995
|