Patent ID: 7535380

Claim:
An optical device for indicating a glide angle for an aircraft, comprising: at least one unit for generating a plurality of light rays of different predefined colors, at least one unit for transmitting the light rays and creating a single light image, and at least one unit for remotely projecting the single light image, wherein the unit for generating a plurality of light rays comprises a plurality of LED light sources for generating the light rays of different predefined colors and the unit for transmitting the light rays and creating a single light image comprises at least one section of optical fibers arranged to combine the light rays into the single light image in a manner such that the single light image includes a plurality of distinct color zones, each zone having a generally uniform color the same as one of the predefined colors and each zone having a color different from at least one of the other zones, each zone visually indicating a range of glide angle for the aircraft.