16 August 2000 OSIRIS optical design
Author Affiliations +
Abstract
The Optical System for Imaging and low Resolution Integrated Spectroscopy (OSIRIS) is being designed as a Day-One optical instrument for the 10.4 mts Gran Telescopio CANARIAS (GTC). It will be the first instrument, on such a large telescope, belonging to a new class of tunable spectrographs, implementing last advances in Volume Phase Holographic Gratings and tunable imaging combined with charge shuffling capabilities, covering the optical wavelength range. OSIRIS< to be first mounted dat one of GTC's Nasmyth platforms, is designed to be compact enough to fit at the Cassegrain focus as well. The optical design is devised around the classical concept of collimator plus camera. The collimator is an off axis ellipsoidal mirror, while the f/2.475 camera consists of several groups of all spherical surfaces lenses, forming a unit together with the detector rand cryocooler. A folder mirror prevents interference with the GTC acquisition and guiding subsystem. Several combinations of color and interference filters. TFs and VPHs are available in the collimated beam, near the pupil, to provide the wide versatility of required observing modes and resolutions. Short descriptions of the OSIRIS geometry, specifications, design strategy and the optical design are presented.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Francisco J. Cobos Duenas, Jesus Gonzalez-Hernandez, Carlos Tejada, Jordi Cepa, Jose Luis Rasilla, "OSIRIS optical design", Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (16 August 2000); doi: 10.1117/12.395478; https://doi.org/10.1117/12.395478
PROCEEDINGS
7 PAGES


SHARE
RELATED CONTENT

Optical system of the 12 26 micron instrument (MIR L)...
Proceedings of SPIE (August 18 2005)
OSIRIS optical design
Proceedings of SPIE (December 23 2002)
Development of a test N band image slicer optical...
Proceedings of SPIE (July 11 2006)
Imaging Fourier transform spectrometer for NGST
Proceedings of SPIE (July 28 2000)
The design of the MOONS-VLT spectrometer
Proceedings of SPIE (September 24 2012)

Back to Top