B - Operations – Transporting – 64 – F
Patent
B - Operations, Transporting
64
F
240/56
B64F 1/18 (2006.01)
Patent
CA 1075652
ABSTRACT: Glide path lighting system which is provided with a lens and a light source, wherein a screen whether or not constructed as a colour filter is disposed in the focal plane of the lens between the lens and the light source, the lens being provided with a diaphragm which is of such a con- struction that the portion of the lens near the horizontal centre line is diaphragmed less strongly than the remaining portions of the lens. -12-
278768
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