beam-condensing unit

beam-condensing unit

[′bēm kən′den·siŋ ‚yü·nət]
(spectroscopy)
An attachment to the spectrophotometer that condenses and remagnifies the beam to provide reduced radiation at the sample.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.