Optical pickup device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 13, 2001
Grant Date -
N/A
app pub date -
Jun 23, 1999
filing date -
Jun 24, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical pickup device with a compact actuator has a holder that includes an objective lens and a hole formed therein. The holder is supported flexibly by a base. A focusing coil and a tracking coil are attached to at least a portion of the hole. A magnetic circuit that imparts magnetic flux to the focusing and the tracking coils is placed in the hole. The focusing and the tracking coils have magnetically fluxed and unfluxed portions. The magnetically unfluxed portions are positioned on the opposite side of the lens as that of the fluxed portions.
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