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Proceedings Paper

Flexure pivots for oscillatory scanners
Author(s): David C. Brown; Kristopher Pruyn
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Paper Abstract

Flexures are quite ancient, and their use as pivots is also ancient. Long before the use of the most primitive sleeve bearings leather strap flexures were used as trunk lidhinges and the like. Early engines of war, including the ballista of the Romans, technically advanced hand bows, and the cross bows of the fourteenth century all employ flexure pivots as their enabling technology. Designers of modern scientific instruments, including optical and laser scanning equipment exploit the same attributes of the flexure which appealed to their forefathers: simplicity, reliability, lack of internal clearance, long service life, ease of construction, and often, it's high mechanical Q. A special case of the flexure pivot, the torsional pivot, has made possible very long lived scanners at speeds which are far out of the reach of other bearing types. Since success with flexures requires consideration of some simple but non-intuitive issues such as stress distribution and stress corrosion, this talk will emphasize the practicum of flexure design and application.

Paper Details

Date Published: 4 June 2002
PDF: 15 pages
Proc. SPIE 4773, Optical Scanning 2002, (4 June 2002); doi: 10.1117/12.469196
Show Author Affiliations
David C. Brown, GSI Lumonics Inc. (United States)
Kristopher Pruyn, GSI Lumonics Inc. (United States)

Published in SPIE Proceedings Vol. 4773:
Optical Scanning 2002
Stephen F. Sagan; Gerald F. Marshall; Leo Beiser, Editor(s)

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