COMPENSATOR DEVICE FOR IMBALANCE OF A RETURN MIRROR BELONGING TO AN OPTICAL LIGHTING SYSTEM OF AN INFORMATION CARRIER

摘要

P THIS INVENTION CONCERNS A DEVICE WHICH ENABLES THE IMBALANCE OF THE RETURN MIRROR TO BE REMOVED FROM AN OPTICAL LIGHTING SYSTEM OF AN INFORMATION CARRIER, WHEN THIS MIRROR IS SUBJECTED TO RAPID DISPLACEMENT. / P P THE DAMAGE OF THIS IMBALANCE IS EFFECTED BY MEANS OF PHOTO-DETECTORS 10, 12 WHICH RECEIVE THE LIGHT REFLECTED BY A REFLECTING ELEMENT M LOCATED AROUND THE OBJECTIVE 0 OF THE OPTICAL SYSTEM OF LIGHTING OF THE SUPPORT. MEANS OF ASSERVING 27 THEN ALLOW TO CONTROL THE POSITION OF THIS MIRROR M / P P APPLICATION, IN PARTICULAR, IN THE FIELD OF COMPUTERS TO THE ACCESS OF INFORMATION STORED ON A DISK. / P