Focus and translation mechanism for the Gemini Multiobject Spectrograph (GMOS)

Peter R. Hastings

doi:10.1117/12.269010

21 March 1997 Focus and translation mechanism for the Gemini Multiobject Spectrograph (GMOS)

Peter R. Hastings

Proceedings Volume 2871, Optical Telescopes of Today and Tomorrow; (1997) https://doi.org/10.1117/12.269010
Event: Optical Telescopes of Today and Tomorrow, 1996, Landskrona/Hven, Sweden

Abstract

GMOS is the general-purpose optical spectrograph for the Gemini telescope. It is to be mounted at the Cassegrain focus and has been designed from the outset to have open-loop active correction for the effects of instrumental flexure. This is done by moving the CCD detector mosaic in two axes to counter the image drift due to flexure. GMOS is also focused by moving the detector and the three axis mechanism to achieve these motions is described here. The mechanism also provides the necessary thermal isolation for the cooled CCD and is driven by stepping motors outside the CCD vacuum vessel.

Citation Download Citation

Peter R. Hastings "Focus and translation mechanism for the Gemini Multiobject Spectrograph (GMOS)", Proc. SPIE 2871, Optical Telescopes of Today and Tomorrow, (21 March 1997); https://doi.org/10.1117/12.269010

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available