Machining and Metrology of a Chalcogenide Glass Freeform Lens Pair

Autor: Jason A. Shultz, Thomas J. Suleski, Daniel L. Barnhardt, Joseph D. Owen, John R. Troutman, Scott DeFisher, Matthew A. Davies
Rok vydání: 2016
Předmět:
Zdroj: Procedia Manufacturing. 5:669-683
ISSN: 2351-9789
DOI: 10.1016/j.promfg.2016.08.055
Popis: Slow tool servo remains a preferred method for ultraprecision manufacture of freeform optics with millimeter-scale departures from an axisymmetric surface. A methodology has been developed for pre-process mapping of, and compensation for, predictable error sources such as tool waviness and machine misalignment, reducing necessity for typical post-process workpiece error correction procedures. This methodology is implemented for manufacture of a chalcogenide glass freeform lens pair for a variable-focus thermal imaging application. Process development, part metrology, and system functional testing are presented.
Databáze: OpenAIRE