Lens device
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United States of America Patent
Stats
-
Apr 26, 2011
Grant Date -
Sep 16, 2010
app pub date -
Jan 22, 2010
filing date -
Mar 13, 2009
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A monitoring lens device includes a focus ring that is provided in an outer circumferential portion of a fixed cylinder and a zoom ring that is provided in an outer circumferential portion of the focus ring. A screw hole that is engaged with a shaft portion of a lock knob is formed in the focus ring, and an opening portion (long groove) through which the lock knob passes is formed in the zoom ring. A spacer is attached to the lock knob and a convex portion of the spacer is fitted into the opening portion.
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