05304773 is referenced by 29 patents and cites 25 patents.

A laser work station has a base member, a laser head mounted on a laser head support carried on the base member for movement of the laser head relative to the base member, so that it is movable thereon in X, Y and Z axes. A guidance system effects precision movement of the laser head in the X, Y and Z axes to move the beam about a workpiece, and an optical sensor assembly comprising a light source and light sensors about the light source to detect light reflected from the surface of the workpiece. The sensor assembly is operable to detect reference formulations on the workpiece as it is moved thereabout. The computer control indexes the sensor assembly to a preselected position relative to the approximate position of a reference formation on the workpiece, and moves it in a predetermined path from the preselected position to sense passage of the beam over the edge of the reference formation, and the work station uses data obtained from such sensing of the passage of the beam over the edge of the reference formation to adjust the coordinates of the guidance system to reflect the actual position of the workpiece.

Title
Laser work station with optical sensor for calibration of guidance system
Application Number
7/841661
Publication Number
5304773
Application Date
February 19, 1992
Publication Date
April 19, 1994
Inventor
Joseph J Troiani
Burlington
CT, US
Stephen R Bolton
Bristol
CT, US
Friedrich Kilian
Avon
CT, US
Assignee
Trumpf
CT, US
IPC
B23K 26/02
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