Applying Hartmann wavefront-sensing technology to precision optical testing of the HST correctors

Theresa L. Bruno; Allan Wirth; Andrew J. Jankevics

doi:10.1117/12.152677

25 August 1993 Applying Hartmann wavefront-sensing technology to precision optical testing of the Hubble Space Telescope correctors

Theresa L. Bruno, Allan Wirth, Andrew J. Jankevics

Author Affiliations +

Proceedings Volume 1920, Active and Adaptive Optical Components and Systems II; (1993) https://doi.org/10.1117/12.152677
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

Abstract

As part of the HST repair mission it is necessary to verify the performance of the correction optics before their installation in the telescope. To accomplish this precision testing a Hartmann style wavefront sensor and pupil parameter measurement tool has been designed and built. This instrument, termed the Aberrated Beam Analyzer (ABA), will be used to measure the wavefront of both aberrated HST simulators and the unaberrated output of the correction optics. In addition, the ABA measures the location, size, and obscuration ratio of the exit pupil of the system under test. Parameters such as the chief ray angle, PSF, MTF, encircled energy, and Strehl ratio are calculated from the measured data. Operation of the ABA is fully automated and is controlled via a high level scripting language. All data is permanently archived on optical disks for later analysis. The design and theory of operation of the ABA will be discussed. Particular emphasis will be given to the error budget and the measurement performance of the ABA. Some preliminary data will be presented.

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Theresa L. Bruno, Allan Wirth, and Andrew J. Jankevics "Applying Hartmann wavefront-sensing technology to precision optical testing of the Hubble Space Telescope correctors", Proc. SPIE 1920, Active and Adaptive Optical Components and Systems II, (25 August 1993); https://doi.org/10.1117/12.152677

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