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US 4,225,867 AGranted
Orientation system
OwnerHarold A. Gellinventor
Life of this patent
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Abstract
An orientation system adapted to be mounted within a vehicle, comprising a display including a rotational heading indicating compass card fabricated from an image retaining fluorescent display panel responsive to bearing data signals generated by selected ones of a plurality of light emitting diodes.
Claims16
A relative azimuth indication system, comprising:
- an indicator activating means including a plurality of radiation emitting devices of a type not requiring an evacuated atmosphere;
- an indicator including an image area which fluoresces when radiated by said radiation emitting devices;
- means to selectively energize individual ones of said radiation emitting devices;
- and
- means to rotate said indicator relative to said indicator activating means.
2 more elements
Dependencies are inferred from the claim text.