infrared searchlight

infrared searchlight

[¦in·frə¦red ′sərch‚līt]

(optics)

A device for illuminating a scene with infrared radiation so that it may be viewed through an infrared image converter tube, although it is invisible to the unaided eye.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.