Patent ID: 9676494
Date: 2017-06-13
CPC Classifications: B64D,F21K,F21Y,Y10T

Claim:
1. Combined anti-collision and navigation light unit for an aircraft, comprising: a light source, comprising at least one LED and having a light output, and a lens cover with a shape that is configured to transform the light output of the light source into an output light intensity distribution of the combined anti-collision and navigation light unit, wherein the combined anti-collision and navigation light unit is configured to have at least two modes of operation, which comprise: wherein the light source consists of exactly one LED, wherein the lens cover has such a shape that the output light intensity distribution satisfies a predefined anti-collision mode light intensity distribution in the anti-collision mode of operation and a predefined navigation mode light intensity distribution in the navigation mode of operation, wherein, in a vertical cross-sectional plane, the predefined anti-collision light intensity distribution has a light intensity of: wherein, in the vertical cross-sectional plane, the predefined navigation mode light intensity distribution has a light intensity of: