Lens Inclination Adjustment System
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United States of America Patent
Stats
-
Apr 20, 1999
Grant Date -
N/A
app pub date -
Jul 24, 1997
filing date -
Jul 26, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lens adjustment system including a interferometer and an adjustment unit is used for adjusting an inclination of a lens of an optical data recording/reproducing device. The interferometer detects an inclination angle of the objective lens, then, the inclination of the lens is adjusted at the adjustment portion. There are two light sources: one is for the interferometer; and the other is for monitoring the inclination adjustment. The inclination adjustment unit has an optical element which prevents the beam projected toward the interferometer from being incident on an image receiving surface of the monitoring system, and only the beam for monitoring the inclination adjustment is observed when the inclination of the lens is being adjusted.
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