OPTICAL BEAM DEFLECTOR

PURPOSE:To optimize the magnetic field in which the drive coil of a mirror vibrator is placed so as to miniaturize an optical beam deflector by providing magnetic field forming means which impress magnetic fields upon, at least, the whole surface of the coil from the outside. CONSTITUTION:A deflecto...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	FUKUCHI MASAKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	CINEMATOGRAPHY CORRECTION OF TYPOGRAPHICAL ERRORS ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MAGNETOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	PURPOSE:To optimize the magnetic field in which the drive coil of a mirror vibrator is placed so as to miniaturize an optical beam deflector by providing magnetic field forming means which impress magnetic fields upon, at least, the whole surface of the coil from the outside. CONSTITUTION:A deflector which is formed by uniting a reflecting mirror 312, coil 311 for driving the mirror 312, and ligament 313 for supporting the mirror 312 and coil 311 to one body and magnetic field forming means 401 and 402 which impress magnetic fields upon, at least, the whole surface of the coil 311 are provided. Therefore, the magnetic field in which the drive coil 311 of a mirror vibrator 310 is placed can be optimized and this optical beam deflector can be miniaturized. Moreover, when the magnetic field is optimized, the width of the drive coil can be reduced and the moment of inertia of the coil can be made smaller.