23 September 2015 Optical design of precision approach path indicators in a portable runway lighting system
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Abstract
Portable runway lighting systems pose an interesting illumination challenge. They are typically used in harsh environments where generators or batteries are used to provide electricity. As a result, not only do the systems have to satisfy the regulatory requirements which determine the light intensity profile but they also need to be highly efficient and within a compact design. This paper summarises the optical design and performance of a PAPI system using LEDs which are coupled into a waveguide to generate the required light distribution at an intermediate plane after the waveguide. The use of waveguides means that a single projection lens is used to generate the final beam and this images the output of the waveguides into the far field.
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Duncan J. W. Walker, Duncan J. W. Walker, Adam Monaghan, Adam Monaghan, } "Optical design of precision approach path indicators in a portable runway lighting system", Proc. SPIE 9629, Optical Systems Design 2015: Illumination Optics IV, 962903 (23 September 2015); doi: 10.1117/12.2191122; https://doi.org/10.1117/12.2191122
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