Optomechanical considerations for realistic tolerancing

Eric Herman; José Sasián; Richard N. Youngworth

doi:10.1117/12.2022804

10 September 2013 Optomechanical considerations for realistic tolerancing

Eric Herman, José Sasián, Richard N. Youngworth

Proceedings Volume 8844, Optical System Alignment, Tolerancing, and Verification VII; 884402 (2013) https://doi.org/10.1117/12.2022804
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Optical tolerancing simulation has improved so that the modeling of optomechanical accuracy can better predict as-built performance. A key refinement being proposed within this paper is monitoring formal interference fits and checking lens elements within their mechanical housings. Without proper checks, simulations may become physically unrealizable and pessimistic, thereby resulting in lower simulated yields. An improved simulation method has been defined and demonstrated in this paper with systems that do not have barrel constraints. The demonstration cases clearly show the trend of the beneficial impact with yield results, as a yield increase of 36.3% to 39.2% is garnered by one example. Considerations in simulating the realistic optomechanical system will assist in controlling cost and providing more accurate simulation results.

Citation Download Citation

Eric Herman, José Sasián, and Richard N. Youngworth "Optomechanical considerations for realistic tolerancing", Proc. SPIE 8844, Optical System Alignment, Tolerancing, and Verification VII, 884402 (10 September 2013); https://doi.org/10.1117/12.2022804

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