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Proceedings Paper

Tool for bonded optical element thermal stability analysis
Author(s): Gregory L. Klotz
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Paper Abstract

An analytical tool is presented which supports the opto-mechanical design of bonded optical elements. Given the mounting requirements from the optical engineer, the alignment stability and optical stresses in bonded optics can be optimized for the adhesive and housing material properties. While a perfectly athermalized mount is desirable, it is not realistic. The tool permits evaluation of element stability and stress over the expected thermal range at nominal, or worst case, achievable assembly and manufacturing tolerances. Selection of the most appropriate mount configuration and materials, which maintain the optical engineer's design, is then possible. The tool is based on a stress-strain analysis using Hooke's Law in the worst case plane through the optic centerline. The optimal bond line is determined for the selected adhesive, housing and given optic materials using the basic athermalization equation. Since a mounting solution is expected to be driven close to an athermalized design, the stress variations are considered linearly related to strain. A review of the equation set, the tool input and output capabilities and formats and an example will be discussed.

Paper Details

Date Published: 24 September 2011
PDF: 12 pages
Proc. SPIE 8125, Optomechanics 2011: Innovations and Solutions, 81250I (24 September 2011); doi: 10.1117/12.892961
Show Author Affiliations
Gregory L. Klotz, Klotz Optical/Mechanical Engineering and Technologies (United States)

Published in SPIE Proceedings Vol. 8125:
Optomechanics 2011: Innovations and Solutions
Alson E. Hatheway, Editor(s)

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