Microfilm recording together with production of control blips - has flash lighting source operated at high frequency to produce variable length markings

The microfilm recording process involves scanning the original item (1) line (3) as it moves at a controlled rate. The image is optically directed by mirrors (8a-8c) through an objective (9a) onto film (10) that moves at a synchronised rate. Located along side the line scanner is a mask (4) that is...

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Bibliographische Detailangaben
Hauptverfasser:	SCHUSTER, RAINER., 8083 MAMMENDORF, DE, DIETRICH, KARL-HEINZ, 8000 MUENCHEN, DE, SCHEPERS, HANS. , 8068 PFAFFENHOFEN, DE, DULLNIG, HERBERT, 8011 POING, DE, SKROBOL, CHRISTIAN., 8084 INNING, DE
Format:	Patent
Sprache:	eng ; ger
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 CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	The microfilm recording process involves scanning the original item (1) line (3) as it moves at a controlled rate. The image is optically directed by mirrors (8a-8c) through an objective (9a) onto film (10) that moves at a synchronised rate. Located along side the line scanner is a mask (4) that is illuminated by a flash light source (5b). The flash frequency is selected such that a series of marks or blips are produced (12) on the film alongside each recorded frame. The control pulses operating the unit are of such a frequency that the marks are produced without gaps. USE/ADVANTAGE - Provides variable length identification markings by each frame.