Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Joseph D. Owen"'
Publikováno v:
CIRP Annals. 66:97-100
Freeform optics facilitate a revolutionary approach to optical design. Ultra-precision diamond machining is an enabling technology for the manufacture of freeform optics. However, optical designs require tight tolerances across spatial wavelengths ra
Autor:
T.A. Harriman, Matthew A. Davies, Y.Q. Wang, A. Zare, Joseph D. Owen, Don A. Lucca, John R. Troutman
Publikováno v:
CIRP Annals. 65:109-112
Freeform germanium optics produced by single crystal diamond milling are important for infrared (IR) imaging applications. However the mechanics of interrupted cutting of germanium is not fully understood. This paper presents new findings from cuttin
Autor:
Jason A. Shultz, Thomas J. Suleski, Daniel L. Barnhardt, Joseph D. Owen, John R. Troutman, Scott DeFisher, Matthew A. Davies
Publikováno v:
Procedia Manufacturing. 5:669-683
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
Autor:
Spencer Novak, Matthew A. Davies, Brian S. Dutterer, Dustin Gurganus, Alan Symmons, Joseph D. Owen
Publikováno v:
Optical Manufacturing and Testing XII.
Precision glass molding is a viable process for the cost-effective volume production of freeform optics. Process development is complex, requiring iterative trials of mold manufacture and metrology, glass mold prototyping, metrology and functional te
Publikováno v:
CIRP Annals. 64:113-116
Chalcogenide glasses are important materials for components in thermal imaging systems (IR-optics). While suitable for molding, the machining characteristics of these brittle materials are largely unknown. In this paper, ultra-precision machining dat
Autor:
Jannick P. Rolland, Jacob Reimers, Joseph D. Owen, John R. Troutman, Jonathan C. Papa, Di Xu, Kevin P. Thompson, Thomas J. Suleski, Matthew A. Davies
Publikováno v:
Optics express. 25(13)
The convex reflective diffraction grating is an essential optical component that lends itself to various applications. In this work, we first outline the design principles of convex diffraction gratings from wavefront quality and efficiency perspecti
Autor:
Di Xu, Kevin P. Thompson, Matthew A. Davies, Jacob Reimers, Joseph D. Owen, Jonathan C. Papa, Jannick P. Rolland, Thomas J. Suleski
Publikováno v:
Optical Design and Fabrication 2017 (Freeform, IODC, OFT).
A quantitative nulling interferometric measurement technique for wavefront fidelity validation of a blazed convex reflective diffraction grating is presented. A null wavefront of λ/45 RMS at wavelength 633 nm is demonstrated.
Publikováno v:
Optical Design and Fabrication 2017 (Freeform, IODC, OFT).
We review the use of multi-axis milling as a method for manufacturing freeform optics in brittle materials. Implementing this technology requires understanding of material behavior and error correction/minimization. Several examples with infrared app
Autor:
Aaron Bauer, Matthew A. Davies, Joseph D. Owen, A. B. Hayes, Wen Zhou, Christopher J. Evans, Jannick P. Rolland
Publikováno v:
Optical Design and Fabrication 2017 (Freeform, IODC, OFT).
Software tools for creating ISO standard documents and machine code for freeform surface fabrication are currently being developed. These tools simplify the transition from design to manufacturing, increasing speed, simplicity and accuracy.
Autor:
Aaron Bauer, Kevin P. Thompson, Peter L. Marasco, Kevin L. Whiteaker, Matthew A. Davies, Jacob Reimers, Jannick P. Rolland, Jonathan C. Papa, Mahsa Farsad, Dennis Yates, John R. Troutman, Joseph D. Owen
Publikováno v:
Optical Design and Fabrication 2017 (Freeform, IODC, OFT).
A freeform imaging spectrometer in the Offner-Chrisp geometry is demonstrated to be 5x more compact than one with traditional surfaces. Performance and manufacturability was analyzed using spectral full-field displays and a demonstration prototype wa