The deterministic optical alignment of the HERMES spectrograph
Abstract
The High Efficiency and Resolution Multi Element Spectrograph (HERMES) is a four channel, VPH-grating spectrograph fed by two 400 fiber slit assemblies whose construction and commissioning has now been completed at the Anglo Australian Telescope (AAT). The size, weight, complexity, and scheduling constraints of the system necessitated that a fully integrated, deterministic, opto-mechanical alignment system be designed into the spectrograph before it was manufactured. This paper presents the principles about which the system was assembled and aligned, including the equipment and the metrology methods employed to complete the spectrograph integration.
- Publication:
-
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation
- Pub Date:
- July 2014
- DOI:
- 10.1117/12.2055574
- Bibcode:
- 2014SPIE.9151E..13G