Other
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7739e.119s&link_type=abstract
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation. Edited by Atad-Ettedgui, Eli; Lemke, Dietrich.
Other
1
Scientific paper
Details of a novel lens mount are described. The design makes use of existing concepts in design and manufacturing to produce an elegant method for establishing and maintaining accurate lens placement over a broad range of temperature. Here lenses are centered by multiple roll-pin shaped flexures precisely machined into the mount. Like other flexure mounts, the roll-pin flexures provide radial compliance to accommodate the difference in radial expansion between the lens and mount. However, the cylindrical flexure geometry is easily multiplexed and allows reference features for axial placement, centration in a barrel, and mount-to-mount stacking to be more readily integrated in a single monolithic lens cell. This eases manufacture and improves accuracy. In this paper, the concept, analysis, and design details for the rollpin flexure mount are presented, along with examples of their use with a variety of lens materials, diameters (25 mm to 375 mm), and temperatures ranges (ambient to cryogenic).
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