Focusing mechanism
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United States of America Patent
Stats
-
May 21, 2002
Grant Date -
N/A
app pub date -
Jan 31, 2001
filing date -
Jan 31, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A focusing mechanism for an optical instrument includes an eyepiece having at least one lens element retained within an eyepiece housing, a stationary carrier for retaining the eyepiece, and a rotatable thumb wheel. A pair of levers operatively connect the eyepiece housing with the rotatable thumb wheel, the thumb wheel including corresponding pairs of cam channels on either side for receiving one end of a corresponding lever, the remaining end of each lever engaging the eyepiece housing, wherein rotational movement of the thumb wheel produces axial movement of the eyepiece relative to said carrier.
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Cited Art Landscape
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