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13 July 2018 UV camera conceptual designs for TMT Fiber WFOS
L. Gilles, D. Shafer, B. Delabre
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Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 10702AD (2018) https://doi.org/10.1117/12.2315618
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States
Abstract
This paper discusses refractive, reflective and catadioptric designs for the Thirty Meter Telescope Fiber Wide Field Optical Spectrograph (WFOS) instrument concept. Custom macros were written to evaluate performance at the detector plane with the grating at the pupil as a function of fiber position in the pseudo-slit and wavelength, and a tolerance analysis has been performed for each design based on best engineering practices to assess performance robustness against opto-mechanical errors. The catadioptric camera appears to provide the best compromise in this regard.
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L. Gilles, D. Shafer, and B. Delabre "UV camera conceptual designs for TMT Fiber WFOS", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 10702AD (13 July 2018); https://doi.org/10.1117/12.2315618
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KEYWORDS
Cameras
Tolerancing
Spectrographs
Aspheric lenses
Combined lens-mirror systems
Optical design
Spherical lenses
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