beam expander

beam expander

[′bēm ik‚span·dər]
(optics)
A combination of optical elements used to increase the diameter of a laser beam or other light beam.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
One option available to cutting machine builders is to use a more capable cutting head with a motorised zoom collimator and variable beam expander, which enables the focal spot size to be modified.
The beam guide is changeable by a beam expander ratio and aperture.
Qioptiq has introduced the motorised Linos Beam Expander 1x-4x, for 515 to 540nm or 1,030 to 1,080nm wavelengths.
The beam expander configurations and design segment introduces the uses of beam expanders and considers their differing designs and how they work.