G - Physics – 03 – B
Patent
G - Physics
03
B
95/32.4
G03B 27/32 (2006.01) H02K 41/02 (2006.01) H04N 1/04 (2006.01) H04N 1/047 (2006.01) H04N 1/06 (2006.01)
Patent
CA 1204318
ABSTRACT OF THE DISCLOSURE In scanning devices used for opto-mechanical processing of a substrate covered with a photo-sensitive material, it is highly desirable to be able to achieve accurate control of the carriage utilized for scanning the substrate. To accomplish this, the carriage is moved along a rectilinear guide by use of a linear motor, preferably under computer control. The linear motor includes a winding which is composed of a number of isolated conductors attached to the recti- linear guide orthogonally to the longitudinal axis of the guide. The winding is connected to the control computer through a controllable current source. The linear motor also includes a solid-state commutator coupled to magnetically propel the carriage in accordance with current supplied to the winding from the controllable current source based on instructions from the control computer.
429645
Bergmans Jean-Paul
Bergmans Patrick
de Stecker Hans
Muyle Eddy
Notredame Paul
Digitized Information Systems Corporation N.v. (d.i.s.c.)
Shapiro Cohen
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