Magnetically controllable optical beam deflection device

Details Magnetically controllable optical beam deflection device Magnetically controllable optical beam deflection device

G - Physics

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B

88/96.8

G11B 7/00 (2006.01) G02B 7/182 (2006.01) G02B 26/08 (2006.01) G11B 7/09 (2006.01) H04N 3/08 (2006.01)

Patent

CA 1056628

ABSTRACT An electro-magnetically controllable beam deflection device for use in an optical system for deflecting a radiation beam obtained from a radiation source in particular in video disc players. The deflection means may for example comprise a pivoting mirror, or an assembly of a plano-concave and a plano-convex lens which with their concave and convex surface facing each other and are capable of performing pivoting movements at a small dis- tance from each other. The deflection means are connected to a frame by means of an integral plastic bearing. The bearing component has a local portion of small cross-section which, under the influence of control forces exerted on the deflection means, is relatively readily deformable. This portion may for example take the form of an integral hinge or a thin cylin- drical portion.

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