Distance-measuring device alignment
OwnerThomas Böschinventor
Life of this patent
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Abstract
Some embodiments of the invention relates to an alignment method and an optoelectronic distance-measuring device. The optoelectronic distance-measuring device may comprise an assembly having a radiation source for emitting an optical transmission radiation, a detector for receiving an optical reception radiation and a printed circuit board, which are arranged in a rigid local relationship with respect to one another, and also an optical unit carrier with a transmission optical unit and a reception optical unit. In some embodiments, a transmission direction is defined by the radiation source and the transmission optical unit and a reception direction is defined by the detector and the reception optical unit. Furthermore, the transmission optical unit and the reception optical unit may have different focal lengths.
Claims20
An adjustment method for an optoelectronic distance meter, which comprises:
- a module having
- a radiation source for emitting optical emission radiation,
- a detector for receiving optical reception radiation, and
- a printed circuit board, which are arranged in a rigid spatial relation to one another, and
- an optics carrier having
- emission optics and
- reception optics,
- an emission direction being defined by the radiation source and the emission optics, and a reception direction being defined by the detector and the reception optics, and the emission optics and the reception optics having different focal lengths,
- the adjustment method comprising:
- establishing a desired orientation of the emission direction relative to the reception direction;
- and
- displacing the entire module relative to the optics carrier, the displacement causing displacement-induced direction angle changes of the emission direction and the reception direction by a lever action of the different focal lengths of respectively different size, so that the orientation of the emission direction relative to the reception direction is varied.
An optoelectronic distance meter comprising:
- a printed circuit board, an optical radiation source and an optical detector, which are positioned and oriented immovably with respect to one another as a common module,
- an optics carrier having emission optics and reception optics with a respectively different focal length, with the emission optics and the reception optics being displaceable with respect to one another only in the direction of their respective optical axes, and
- an electronic evaluation unit with which a distance from the distance meter to a target object can be determined on the basis of a signal time of flight with the aid of a digitized reception signal of the detector,
- wherein the optoelectronic distance meter is adjusted by
- establishing a desired orientation of the emission direction relative to the reception direction;
- and
- displacing the entire module relative to the optics carrier, the displacement causing displacement-induced direction angle changes of the emission direction and the reception direction by a lever action of the different focal lengths of respectively different size, so that the orientation of the emission direction relative to the reception direction is varied.
Dependencies are inferred from the claim text.