Optical assemblies with tilt-controlled mounting of an optical element in a barrel
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United States of America Patent
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Oct 18, 2016
Grant Date -
Jan 28, 2016
app pub date -
Jul 20, 2015
filing date -
Jul 25, 2014
priority date (Note) -
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Abstract
Optical assemblies have one or more optical elements mounted in the cavity of a barrel. The optical element has a curved abutment surface engaging a seat provided in the cavity. The barrel has an inner wall provided with a set of internal threads. External threads are provided on a peripheral wall of the optical element or on a perimeter wall of a retaining ring securing the optical element within the cavity. The internal and external threads have a thread profile including a load-bearing thread face perpendicular to the center axis of the cavity. The thread profile may define a Buttress thread profile or a square thread profile.
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