Position determining device
AssigneesKarl Vockenhuber, Raimund Hauser
InventorHarald Wessner
Life of this patent
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Abstract
A device for determining the position of at least two objects movable relative to each other preferably in a pre-set counter train which includes operatively associated optical elements supported on the objects together with a transmitter for emitting a directional beam such as an electromagnetic wave transmitter for producing an electromagnetic beam and a receiver onto which the beam is directed, the beam being directed in a unidirectional path onto the receiver when the optical elements are in a predetermined aligned position and being deflected from such path to an extent corresponding to the relative position of the objects and the optical elements supported thereon to provide an output from the receiver responsive to relative position of the objects.
Claims4
A position determining device comprising, in combination, at least one pair of objects arranged for relative movement in a pre-set counter train, an optical element on each of said objects, a transmitter for generating an energy beam and for directing said beam in a predetermined path, a receiver for receiving said energy beam, said optical elements being disposed in the path of said energy beam for transmission of said beam to said receiver in an aligned position of said optical elements, said optical elements being arranged to deflect said energy beam in a non-aligned position, one of the objects comprising a rotatably mounted dial movable into a pre-set position, the other object being movable to position the optical element on said other object into said aligned position with the optical element on said one object in said pre-set position for transmission of said energy beam in said predetermined path to said receiver.
Dependencies are inferred from the claim text.