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US 2004/0174543 A1Published application
optoelectronic measuring method and distance measuring device for carrying out the method
OwnerRolf Beckinventor
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OwnerRolf Beckinventor
Estimating the term…
An optoelectronic measuring method and a distance measuring device for carrying out the method for determining the dimensions with respect to length, width or height of objects mounted in or outside of processing or measuring machines. At least one ray bundle transmitted by a measuring head of a measuring device is projected on a surface of an object to be measured as a dot-shaped measuring spot at various locations on a circumferential line of a geometric figure, and the reflected ray bundle projects through a projection unit the respective measuring spot onto an optoelectronic transducer unit of the measuring head and the signals produced by the transducer unit are evaluated in an evaluating unit. The reflected ray bundle is deflected by the projection unit of the measuring head in such a way that the measuring spot projected on the optoelectronic transducer unit is independent of the position of rotation of the measuring spot projected onto the surface relative to the optical center axis of the measuring head.
In an optoelectronic distance measuring method including projecting at least one ray bundle transmitted by a measuring head of a measuring device on a surface of an object to be measured as a dot-shaped measuring spot at various locations on a circumferential line of a geometric figure, wherein the reflected ray bundle projects through a projection unit the respective measuring spot onto an optoelectronic transducer unit of the measuring head, and evaluating signals produced by the optoelectronic transducer unit in an evaluating unit, the improvement comprising deflecting the reflected ray bundle by the projection unit of the measuring head in such a way that the measuring spot projected on the optoelectronic transducer unit is independent of a position of rotation of the measuring spot projected onto the surface relative to an optical center axis of the measuring head.
A distance measuring device for carrying out an optoelectronic distance measuring method, the device comprising a frame and at least one measuring head, and at least one evaluating unit and a control unit connected to one another through signal lines, wherein the measuring head comprises means for producing, transmitting and projecting at least one ray bundle along a circumferential line of a predeterminable geometric figure on an object, and means for reproducing the ray bundle reflected by the object on at least one optoelectronic transducer unit, wherein the means for projecting the transmitted ray bundle along the circumferential line of the predeterminable figure and the means for reproducing the reflected ray bundle on the optoelectronic transducer unit are configured such that system-inherent reproduction errors are essentially minimized or eliminated.
Dependencies are inferred from the claim text.