22 July 2016 NFIRAOS beamsplitters subsystems optomechanical design
Author Affiliations +
Abstract
The early-light facility adaptive optics system for the Thirty Meter Telescope (TMT) is the Narrow-Field InfraRed Adaptive Optics System (NFIRAOS). The science beam splitter changer mechanism and the visible light beam splitter are subsystems of NFIRAOS. This paper presents the opto-mechanical design of the NFIRAOS beam splitters subsystems (NBS). In addition to the modal and the structural analyses, the beam splitters surface deformations are computed considering the environmental constraints during operation. Surface deformations are fit to Zernike polynomials using SigFit software. Rigid body motion as well as residual RMS and peak-to-valley surface deformations are calculated. Finally, deformed surfaces are exported to Zemax to evaluate the transmitted and reflected wave front error. The simulation results of this integrated opto-mechanical analysis have shown compliance with all optical requirements.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frédéric Lamontagne, Frédéric Lamontagne, Nichola Desnoyers, Nichola Desnoyers, Reston Nash, Reston Nash, Marc-André Boucher, Marc-André Boucher, Olivier Martin, Olivier Martin, Louis Buteau-Vaillancourt, Louis Buteau-Vaillancourt, François Châteauneuf, François Châteauneuf, Jenny Atwood, Jenny Atwood, Alexis Hill, Alexis Hill, Peter W. G. Byrnes, Peter W. G. Byrnes, Glen Herriot, Glen Herriot, Jean-Pierre Véran, Jean-Pierre Véran, } "NFIRAOS beamsplitters subsystems optomechanical design", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 991205 (22 July 2016); doi: 10.1117/12.2233310; https://doi.org/10.1117/12.2233310
PROCEEDINGS
10 PAGES


SHARE
RELATED CONTENT

Design and functional tests of the Euclid grism mount
Proceedings of SPIE (November 17 2017)
Design Guidelines For Bonding Prisms To Mounts
Proceedings of SPIE (April 13 1989)
Thermal stress in a glass metal bond with PR 1578...
Proceedings of SPIE (October 01 1990)
Gemini multiobject spectrograph optomechanical design
Proceedings of SPIE (October 13 1997)
Finite element simulation of laser spallation technique
Proceedings of SPIE (September 12 2002)

Back to Top