Scanning system with field-replaceable laser source subsystem

A design for pre-scan optics offers the possibility of low cost field modularity by replacing a rather inexpensive optical sub-module (220) inside the pre-scan optics instead of the entire optics bench in the case of laser failure in a platesetter or imagesetter. It further allows the use of lenses...

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Bibliographische Detailangaben
Hauptverfasser:	SAGAN, STEPHEN, PLATZ, TORSTEN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY CORRECTION OF TYPOGRAPHICAL ERRORS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MATERIALS THEREFOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A design for pre-scan optics offers the possibility of low cost field modularity by replacing a rather inexpensive optical sub-module (220) inside the pre-scan optics instead of the entire optics bench in the case of laser failure in a platesetter or imagesetter. It further allows the use of lenses (316,318,324) that are highly dispersive and are designed to operate over a range of wavelengths. The correction is distributed over three elements. This allows for collimation in both the X and Y axes of the beam.