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LED Runway Edge Lights

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Old 13th Nov 2006, 11:25
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LED Runway Edge Lights

Just browsing a couple of airfield lighting web sites and noticed they are marketing LED taxiway centreline and edge lights. But could't find anything on LED runway edge lights. Now i;m talking about permanent lights, not portable battery powered ones.

Have LED runway edge lights been made available yet. If not how long till they are developed enough.
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Old 13th Nov 2006, 11:54
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Won't LED lighting be problematic to EFVS which are "tuned" to incandescent lamp spectra? For example,

http://www.kollsman.com/products/com...ion-system.asp

http://www.cmcelectronics.ca/En/Prod...erview_en.html
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Old 14th Nov 2006, 06:17
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Are LEDs suitable for varying intensity; you'd need at least two intensities for runway edge, more if the runway is precision instrument.
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Old 15th Nov 2006, 12:37
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You could manage that. Have each light as an array of bulbs. One bulb = dim, twenty = bright. But from the looks of things, LED's are already here in the UK. I'd swear that the "wigs-wags" at LCY are LED's.
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Old 15th Nov 2006, 16:12
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I wonder whether the problem is getting the necessary brilliance (i.e. candelas) out of LEDs.
 
Old 15th Nov 2006, 16:27
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Lots of LED info here......

https://www.industry.siemens.com/adb.../a03450_01.htm
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