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28 September 1999 Assembly and testing of the ESI camera
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The Echellette Spectrograph and Imager (ESI), currently being delivered for use at the Cassegrain focus of the Keck II telescope employs an all-spherical, 308 mm focal length f/1.07 Epps camera. The camera consists of 10 lens elements in 5 groups: an oil-coupled doublet; a singlet, an oil- coupled triplet; a grease-coupled triplet; and a field flattener, which also serves as the vacuum-dewar window. A sensitivity analysis suggested that mechanical manufacturing tolerances of order +/- 25 microns were appropriate. In this paper we discuss the sensitivity analysis, the assembly and the testing of this camera.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrew I. Sheinis, Brian M. Sutin, Harland W. Epps, J. Alan Schier, David F. Hilyard, and Jeffrey P. Lewis "Assembly and testing of the ESI camera", Proc. SPIE 3786, Optomechanical Engineering and Vibration Control, (28 September 1999);

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