Dr. James H. Clark
Mechanical Engineer at US Naval Observatory
SPIE Involvement:
Author
Profile Summary

James H Clark, III is the chief mechanical engineer at the Navy Precision Optical Interferometer (NPOI) in Flagstaff, Arizona. He received his M.S. in mechanical engineering from Northern Arizona University (NAU) in 2006 and is currently a PhD. student in the same department. Prior to joining NPOI in 1990, he worked at Optelecom, Inc. on fiber optic payout systems for guided missiles, tethered terrestrial and unmanned underwater vehicles, and sonobuoys. His research interests include solid mechanics and optomechanical systems. Some of his past research projects include the development of analytical methods to predict optical fiber strain in wound composite payout bobbins under thermal loading, the deflection and compliance sensitivities of mounted optical mirrors under thermal and gravity loading, and vibrational analysis of large aperture fast steering mirror structures. Since 2005, he has worked closely with NAU in a variety of applications related to the NPOI, and currently teaches classes as a part-time instructor in mechanical engineering and sponsors senior engineering capstone projects. He has disseminated the results of his research activities in archival journals as well as technical conferences.
Publications (31)

PROCEEDINGS ARTICLE | August 19, 2016
Proc. SPIE. 9907, Optical and Infrared Interferometry and Imaging V
KEYWORDS: Observatories, Telescopes, Mirrors, Electronics, Stars, Interferometers, Cameras, Interferometry, Control systems, Precision optics

PROCEEDINGS ARTICLE | September 2, 2015
Proc. SPIE. 9573, Optomechanical Engineering 2015
KEYWORDS: Actuators, Telescopes, Mirrors, Glasses, Space telescopes, Optical tracking, Aluminum, Computer aided design, Precision optics, Solid modeling

PROCEEDINGS ARTICLE | September 8, 2014
Proc. SPIE. 9195, Optical System Alignment, Tolerancing, and Verification VIII
KEYWORDS: Actuators, Telescopes, Mirrors, Ferroelectric materials, Interferometers, Interferometry, Ocean optics, Relays, Optical tracking, Analytical research

PROCEEDINGS ARTICLE | July 24, 2014
Proc. SPIE. 9146, Optical and Infrared Interferometry IV
KEYWORDS: Signal to noise ratio, Telescopes, Spectrographs, Stars, Interferometers, Image resolution, Data acquisition, Imaging arrays, Precision optics, Visibility

SPIE Journal Paper | January 9, 2014
OE Vol. 53 Issue 01
KEYWORDS: Mirrors, Off axis mirrors, Adaptive optics, Finite element methods, Interferometers, Wavefronts, Analytical research, Optical engineering, Chemical elements, Precision optics

PROCEEDINGS ARTICLE | September 24, 2011
Proc. SPIE. 8125, Optomechanics 2011: Innovations and Solutions
KEYWORDS: Observatories, Mirrors, Interferometers, Wavefronts, Wavefront aberrations, Adaptive optics, Relays, Finite element methods, Off axis mirrors, Prototyping

Showing 5 of 31 publications
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