Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2010 · 19 citations · 0 references
EngineeringAstronomyPhysicsInstrumentationMetrologyOpticsCalibrationInterferometryMeasurement StandardsMeasurement System AnalysisOptical InstrumentationOptical MetrologyCertification ComplianceCertification Compliance AssessmentInterferometric InstrumentationInterferometric MeasurementInterferometric MetrologyLaser InterferometryOptical InterferometersOptical Interferometry
JWST optical component in-process optical testing and cryogenic requirement compliance certification, verification & validation is probably the most difficult metrology job of our generation in astronomical optics. But, the challenge has been met: by the hard work of dozens of optical metrologists; the development and qualification of multiple custom test setups; and several new inventions, including 4D PhaseCam and Leica Absolute Distance Meter. This paper summarizes the metrology tools, test setups and processes used to characterize the JWST optical components.