Airport taxiway sideline lamp

Abstract

The invention relates to an airport taxiway sideline lamp, comprising an LED light source and a lens arranged above the LED light source, wherein the LED light source is a blue LED light source, and the lens is a solid lens; the lens comprises a base platform and a conical part upwards extending out of the base platform, one side of the base platform, which is just opposite to the LED light source, is provided with a concave conical surface which is provided with multiple circles of concentric insection rings coaxial with the conical surface. Because no reflector is arranged in the airport taxiway sideline lamp, the light energy loss caused by the absorption of the reflector is reduced, and the structure of the lamp is simplified ; in addition, because the blue LED light source is directly adopted, and no additional light filter is arranged, the structure of the lamp is simplified; and moreover the LED light source has the advantages of high light-emitting efficiency, long service life and the like.

Description

technical field [0001] The invention relates to identification lights used for taxiways and guideways of airports, and more specifically relates to an airport taxiway sideline light. Background technique [0002] The airport lighting system is a visual aid to navigation. Its purpose is to better guide the aircraft to approach and land safely, especially at night and under low cloud and low visibility conditions. The airport lighting system plays an irreplaceable role. [0003] Airport taxiway sideline lights are an indispensable part of the airport lighting system. They are installed on the edges of both sides of the taxiway or not more than 3 meters away from the edge. The color of the airport taxiway sideline lights is blue, regardless of the straight part of the taxiway or the curve The light distance should be less than 60 meters, so that it can clearly display the position of the curve. When an aircraft taxis off a runway, blue airport taxiway edge lights guide pilots ...

AI Technical Summary

Problems solved by technology

Due to the thicker glass prism 3 of this kind of airport taxiway sideline light, more light is absorbed in the glass prism 3, and the light loss is serious, and because the middle part 4 of the glass prism 3 is hollow, it is necessary to install a cover on the prism The protective device needs to be sealed at the same time, which makes the mechanism of the lamp complicated. Due to the cover and sealing, the height of the lamp is more than 10mm above the ground height, so that there will be a certain danger when the landing or taxiing aircraft collides with it.

In addition, the halogen tungsten light source emits white light, but the lamp needs only blue light, so it is necessary to install a blue filter on the lamp, resulting in a complicated structure of the lamp. Due to the existence of the filter, it also makes the Part of the light cannot be used; the luminous efficiency of the tungsten-halogen lamp is relatively low, about 15-201m / W, and the luminous efficiency is low; the life of the tungsten-halogen lamp is only 1500h, and the light source needs to be replaced every 5-6 months. higher cost

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