Optical head device for absorbing vibrations in an objective lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 29, 2007
Grant Date -
Jul 1, 2004
app pub date -
Sep 30, 2003
filing date -
Oct 2, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical head device comprises a lens holder in which an objective lens and drive coils are mounted and a plurality of elastic support members which support the lens holder to move in a focusing direction and a tracking direction. The lens holder has a coil holding portion for holding the drive coils and a lens holding portion which projects from the coil holding portion to the front to hold the objective lens. The lens holding portion is formed thinner than the coil holding portion to avoid interference with a deflecting element positioned beneath the lens holding portion. The lens holding portion has a flat surface with an arc shape from the side portion to the front along the outer circumference of the objective lens. The lens holding portion also has a first vibration-absorbing member attached to the front end portion thereof.
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