EP0096677A1
Expired / Lapsed
EP
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An automatic scanning device and its control for opto-mechanical processing applications
Assignee: Digitized Information Systems Corp In Verkorting Disc
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Filing: 1983-05-31
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Granted: —
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Expires: 2003-05-31
Abstract
Abstract An automatic scanning device suited for printing, cartography and medical imaging, which comprises : - a light source (2); - optical components (3, 5); - a control computer (28); - a linear motor (16), and - a solid state commutator (26). The scanning carriage is driven by the linear motor (16) which is fed with a current controlled on a preprogrammed way by the computer (28).
Inventors
- 👤 Jan Van Campenhout
- 👤 Hans De Stecker
- 👤 Paul Notredame
- 👤 Eddy Muyle
- 👤 Jean-Paul Bergmans
- 👤 Patrick Bergmans
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 22:50
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/06; H04N1/0671; H02; H02K; H02K41/00; H02K41/02; H02K41/03; H02K41/031; H04N1/047; H04N1/0473; H04N2201/00; H04N2201/04; H04N2201/047; H04N2201/04701; H04N2201/0471; H04N2201/04715; H04N2201/04727; H04N2201/04734; H04N2201/04753; H04N2201/04755
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
141 words
An automatic scanning device suited for the opto-mechanical processing of a substrate covered with photo-sensitive material, by means of optical components supported by a carriage moving along a rectilinear guide, characterized by the fact that it comprises : a light source (2) generating a synthesizing or analyzing beam; optical components (3,5) that guide the beam generated by the source (2) onto said substrate; a computer (28); a position measuring device (22); and a linear motor(16) consisting of a winding (17), composed of a number of isolated conductors (18), attached to said rectilinear guide (28) orthogonally to the longitudinal axis of this guide (28.), and connected to said control computer (25) through a controllable current source (27), and a solid state commutator (26) so as to propel the carriage (9), equipped with at least one permanent magnet (14,15), in a controlled fashion.
Claim 2
Dependent Claim
141 words
An automatic scanning device suited for the opto-mechanical processing of a substrate covered with photo-sensitive material, by means of optical components supported by a carriage moving along a rectilinear guide, characterized by the fact that it comprises : a light source (2) generating a synthesizing or analyzing beam; optical components (3,5) that guide the beam generated by the source (2) onto said substrate; a computer (28); a position measuring device (22); and a linear motor(16) consisting of a winding (17), composed of a number of isolated conductors (18), attached to said rectilinear guide (28) orthogonally to the longitudinal axis of this guide (28.), and connected to said control computer (25) through a controllable current source (27), and a solid state commutator (26) so as to propel the carriage (9), equipped with at least one permanent magnet (14,15), in a controlled fashion.
Claim 3
Dependent Claim
24 words
A device according to claim 1, characterized by the use of an intensity modulated laser source (2) to generate the synthesizing or analyzing beam.
Claim 4
Independent Claim
26 words
A device according to claims 1 and 2, characterized by the use of a drum (5), rotating about its central axis (L,L'), as the said substrate.
Claim 5
Independent Claim
23 words
A device according to any of above claims, characterized by the use of at least one contactless bearing (21)to support said carriage (9).
Claim 6
Independent Claim
20 words
A device according to any of above claims, characterized by the use of pneumatic carriage support and guidance bearings (21).
Claim 7
Independent Claim
55 words
A device according to any of above claims, characterized by the use of a linear motor winding consisting of a two-layer printed circuit board, bearing on both sides a repetitive pattern of S-shaped conductors, attached to a rectilinear guide (11) of a soft highly permeable magnetic material, through a thin layer of isolating material (19).
Claim 8
Independent Claim
43 words
A device according to any of above claims, characterized by the use of an optical grating with a resolution of the order of one micrometer, and a detector (24) transmitting its data to said control computer (25), as the position measuring device (22).
Claim 9
Independent Claim
76 words
A method to control and steer the scanning, and to process the data projected onto a substrate covered with photo-sensitive material in an automatic scanning device according to any of the above claims, characterized by the fact that the scanning carriage (9), equipped with at least one permanent magnet (14, 15), is controlled by the linear motor (16) containing a number of conductors (18) in which a current is made to flow in a computer-controlled fashion.
Claim 10
Dependent Claim
43 words
A method according to claim 3, characterized by the use of an optical grating with a resolution of the order of one micrometer and a detector (24) transmitting its data to said control computer ( 25 ), as the position measuring device (22).
Claim 11
Dependent Claim
35 words
A method according to either claim 8 or claim 9, characterized by the use of printed circuit etching techniques to realize a series of conductors disposed orthogonally to the axis of said rectilinear guide (10).
Claim 12
Dependent Claim
37 words
A method according to claim 10, characterized in that the winding (17) is composed of a repetitive pattern of identical S-shaped curves, connected at their extremities by means of through-plating, so as to form a winding conductor.
Claim 13
Dependent Claim
26 words
A method according to claim 10, characterized in that the conductive layers of the printed circuit consist of a 70 micrometer metallization of copper or silver.
Claim 14
Independent Claim
31 words
A method according to either of the claims 10 through 12, characterized in that the winding (17) is attached to the rectilinear guide (10) by means of a thin isolating layer.
Claim 15
Dependent Claim
21 words
A method according to claim 13 characterized in that the winding (17) is attached to the rectilinear guide (10) by glueing.
References Cited (Backward Citations)
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