Littrow mounting

Littrow mounting

[′li‚trō ‚mau̇nt·iŋ]
(spectroscopy)
The arrangement of the grating and other components of a Littrow grating spectrograph, which is analogous to that of a Littrow quartz spectrograph.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.