finder beam

finder beam

[′fīnd·ər ‚bēm]
(computer science)
A beam of light projected by a light pen on the spot on the display screen where the light pen photodetector is focused, in order to aid the user in positioning the light pen.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The DG813 has advanced features when used with the SF803 Spot Finder beam detector.