Patent ID: 6515294
Filing Date: 2003-02-04
Classification: G01B

Abstract:
Device for alignment of coupled rotary bodies relative to one another, comprising a light emitting means for producing a light beam, said light emitting means being attached, essentially centered, on an end face of a first rotary body, a single flat photosensitive element which is adapted for measuring light points which are imaged onto it according to two linear coordinates and according to intensity, flat photosensitive element being spaced at a fixed distance with reference to the light emitting means, a first and a second reflecting optical element, said optical elements being attached to a second rotary body, the second rotary body being spaced distally from the first rotary body and the two reflecting optical elements having a fixed spacial relationship with respect to one another and with respect to the second rotary body; wherein the first reflecting optical element, according to an angular offset between the first and second rotary bodies, reflects a light beam generated by the light emitting means in a first predefined manner onto the flat photosensitive element, and the second reflecting optical element, according to a lateral offset between the indicated first and second rotary bodies, reflecting the same light beam generated by the light emitting means in a second predefined manner onto the flat photosensitive element.