2017 Topical Meeting

Precision Engineering and Optics:
What are the limits of precision, and how to characterize them?

Monday – Tuesday, April 24-25, 2017
Westward Look Wyndham Grand Resort & Spa
Tucson, Arizona, USA

Meeting Co-Chairpersons:

Robert E. Parks, Optical Perspectives Group, LLC
James E. Burge, University of Arizona

ASPE is grateful to the following organizations for their sponsorship



This Topical Meeting, Precision Engineering and Optics:  What are the limits of precision, and how to characterize them? will look at how well optics can be made and how to describe precision, particularly as a function of spatial scale of the optic or optical system. Because there is a partially accepted formalism for describing precision in optics by means of a power spectral density, or structure function, where precision is expressed as a function of the fractional size of the optic, can this same formalism be applied to other areas of precision engineering? Using precision in optics as a baseline, how do other fields of precision engineering stack up with methods of manufacture and metrology of optics?

The idea for this meeting’s theme is an outgrowth of the Stedman diagram of the early 1990’s for characterizing metrology instruments in terms of their linear measurement range versus their slope measuring sensitivity. Can the same sort of comprehensive idea describe the limits of precision in terms of a metric based on the scale of features of the object in question? Further, how much of what is known about the precision of the object is inherent in the object and how much is a limitation of the metrology as a function of scale?

Although optics are the main emphasis of this Topical meeting, it is intended to be multi-disciplinary with examples of the limits of precision and means for describing and measuring them coming from all the disciplines in precision engineering. Ideas of how to measure and describe precision in one discipline may have applicability in another yet be rather unknown or in-applicable in another. The goal of this meeting is to bring ideas from many fields together in a small group setting so the ideas can be discussed in depth concerning limits to precision based on design, materials, assembly, fabrication techniques and metrology.