Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 20, 2007
Patent Application Number
10616266
Date Filed
July 9, 2003
Patent Primary Examiner
Patent abstract
Tracking coils are attached to outer surfaces of two focusing coils. Inside the focusing coils, a first magnet and a second magnet are arranged respectively. A third magnet is arranged so as to face the first magnet and the second magnet via the tracking coils. An open end of a first yoke for holding the first magnet and an open end of a second yoke for holding the second magnet are connected by a bridging yoke. Since a magnetic flux is formed in the bridging yoke, pitching vibrations can be suppressed and a driving sensitivity improves owing to an increase in an effective magnetic flux.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
