Timing ruler or timing disk and process for its manufacture

The present invention relates to a timing ruler or a timing disk for the exact positioning of working machines, servo-motors, encoders or the like. The device consists of a transparent material on which codings are arranged for scanning via optical sensors. The transparent material consists of a fil...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BRAUN PAUL WILHELM, RUECKERT JOCHEN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to a timing ruler or a timing disk for the exact positioning of working machines, servo-motors, encoders or the like. The device consists of a transparent material on which codings are arranged for scanning via optical sensors. The transparent material consists of a film supporting on one side a light-sensitive layer. The light-sensitive layer is provided via masks or photoplotters with codings for producing windows. The light-sensitive layer is covered with a transparent thermally stable and moisture-resistant material. The invention also relates to a process for the manufacture of such a timing ruler or such a timing disk.