Tolerances don't lie...and stories of the Grand Canyon!

Robert E. Fischer

doi:10.1117/12.796840

2 September 2008 Tolerances don't lie...and stories of the Grand Canyon!

Robert E. Fischer

Proceedings Volume 7068, Optical System Alignment and Tolerancing II; 706803 (2008) https://doi.org/10.1117/12.796840
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

There has been much written over the years about the generation of optical system fabrication, assembly, and alignment tolerances leading to a performance error budget and predicted system performance. Over my 40 years of optical design experience I have become increasingly more cautious (and concerned) about how accurately we, the optics community, are tolerancing our systems and predicting their manufactured performance. In this paper I will share with you some of these concerns along with recommended ways of avoiding the many "speed bumps," "pot holes," and other common issues encountered when tolerancing. And of course I will reveal why "tolerances don't lie" and how this relates to the Grand Canyon.

Citation Download Citation

Robert E. Fischer "Tolerances don't lie...and stories of the Grand Canyon!", Proc. SPIE 7068, Optical System Alignment and Tolerancing II, 706803 (2 September 2008); https://doi.org/10.1117/12.796840

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