System for establishing best focus for the Orbiting Carbon Observatory instrument

Carl Christian Liebe; Harold R. Pollock; Brett Hannah; Randall K. Bartman; Costin Radulescu; Mayer Rud; Joseph A. Esposito

doi:10.1117/1.3180867

1 July 2009 System for establishing best focus for the Orbiting Carbon Observatory instrument

Carl Christian Liebe, Harold R. Pollock, Brett Hannah, Randall K. Bartman, Costin Radulescu, Mayer Rud, Joseph A. Esposito

Author Affiliations +

Optical Engineering, Vol. 48, Issue 7, 073605 (July 2009). https://doi.org/10.1117/1.3180867

Abstract

A technology for establishing best focus of an optical system is described. This technology was recently used to establish best focus of the Orbiting Carbon Observatory spectrometers while the instrument was undergoing thermal-vacuum testing. Three piezo-actuated motors were used to adjust the tip, tilt, and piston of a focal plane assembly relative to the spectrometer's optical system. A set of optical displacement sensors measured tip-tilt-piston throughout the focusing process. With best focus established and confirmed using a pupil-slicing technique, the corresponding sensor measurements were used to specify the geometry and dimensions of a precision-ground shim ring.

©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Carl Christian Liebe, Harold R. Pollock, Brett Hannah, Randall K. Bartman, Costin Radulescu, Mayer Rud, and Joseph A. Esposito "System for establishing best focus for the Orbiting Carbon Observatory instrument," Optical Engineering 48(7), 073605 (1 July 2009). https://doi.org/10.1117/1.3180867

Published: 1 July 2009

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