Paper 13100-110
Paper 13100-110
Development of a monolithic flexure based tip/tilt cryo-mechanism to stabilize the pupil of METIS
21 June 2024 • 10:45 - 11:00 Japan Standard Time | Room G214, North - 2F
Abstract
The Mid-infrared ELT Imager and Spectrograph (METIS) is one of the scientific instruments for the ELT. The Common Fore Optics (CFO) is the first set of optics and mechanisms within the cryogenic instrument. A key element of the CFO is the Pupil Stabilization Mechanism (PSM), a tip/tilt mirror used for periodic adjustments of the pupil alignment during observations. The design challenges for the PSM involved achieving the required stability, resolution, and a sufficient stroke range/hold power while operating within the stringent requirements of the CFO. The design development lead to a monolithic design and integrated flexures driven by actuators with an integrated closed loop optical encoder.
Presenter
NOVA (Netherlands)
Jeff Lynn serves as a project manager and system engineer within the NOVA Optical and Infrared Instrumentation Group with an extensive background in government, industry and university space projects both large and small. Since 2017, he serves as the Dutch project manager for the ELT/METIS instrument and system engineer for the Common Fore Optics (CFO) subsystem within METIS. He also serves as Dutch project manager for the Optical Spectrograph within the ELT/MOSAIC instrument.