Aperture plate for an exposure head for use in a picture scanning reproducer

An aperture plate for use in the exposure head of a picture scanning reproducer which constructs an image by exposure of a film attached to a rotating drum in scanning mode, the aperture of which plate has a shape incorporating parallel lines and end portions consisting of twin lines opening up away...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KUNISAWA, MASUO, OKAZAKI, SEIJI, SHIMOOKA, RIYO
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM APPARATUS SPECIALLY ADAPTED THEREFOR CALCULATING CINEMATOGRAPHY COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HANDLING RECORD CARRIERS 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 PRESENTATION OF DATA PRINTING RECOGNITION OF DATA RECORD CARRIERS SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	An aperture plate for use in the exposure head of a picture scanning reproducer which constructs an image by exposure of a film attached to a rotating drum in scanning mode, the aperture of which plate has a shape incorporating parallel lines and end portions consisting of twin lines opening up away from a cusp, which in some embodiments may be exponential curves, whereby overlap effects in the constructed image are substantially eliminated.