Patent ID: 6647919
Filing Date: 2003-11-18
Classification: A01J,G01S,G02B

Abstract:
A device for determining the spatial position of an animal's teat, said device comprising a first transmitter element for emitting a first ray or beam of rays in a first sub-area of a space, a second transmitter element differing from said first transmitter element for emitting a second ray or beam of rays in a second sub-area of said space, said space consisting essentially of said first sub-area and said second sub-area, a first receiver element arranged to receive a reflection of said first ray or beam of rays, a second receiver element differing from said first receiver element arranged to receive a reflection of said second ray or beam of rays, a mirror rotatable about an axis of rotation for directing said ray or beam of rays emanating from each said transmitter element or their reflections or both to a relevant said receiver element, said mirror being provided with biasing means for vertically biasing the direction of said ray of beams or rays or the reflections thereof as received by a said relevant receiver element whereby such relevant receiver element receives information as to the essentially simultaneous positions of two vertically spaced apart locations of said teat.