Device for compensating the lack of balance of a deviating...

Details Device for compensating the lack of balance of a deviating... Device for compensating the lack of balance of a deviating...

G - Physics

11

B

352/32.2

G11B 7/09 (2006.01) G11B 7/085 (2006.01) G11B 7/095 (2006.01)

Patent

CA 1196097

ABSTRACT OF THE DISCLOSURE DEVICE FOR COMPENSATING THE LACK OF BALANCE OF A DEVIATING MIRROR BELONGING TO AN OPTICAL SYSTEM FOR ILLUMINATING A DATA MEDIUM The present invention relates to a device making it possible to eliminate the lack of balance of the deviating mirror of an optical system for illuminating a data medium or support, when said mirror is subject to a rapid displacement. The lack of balance is cancelled out by means of photodetector means receiving the light reflected by a reflecting element positioned around the objective of the optical system for illuminating medium. Control means then make it possible to control the position of the mirror.

392763

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