collimating lens


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Related to collimating lens: beam collimation

collimating lens

[′käl·ə‚mād·iŋ ‚lenz]
(optics)
A lens on a collimator used to focus light from a source near one of its focal points into a parallel beam.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Optical aberrations in the collimating lens mechanism can degrade the quality of OCT images first by introducing imperfections to the collimated beam in the forward path, which can increase the sample spot size, and second by reducing the coupling efficiency to the fiber, which decreases the signal-to-noise ratio (SNR) in OCT images.
Therefore, the fiber and collimating lens should be aligned very carefully.
Design and Implementation Guidelines for a Modular Spectral-Domain Optical Coherence Tomography Scanner
The housing holds a self-contained diode laser package with a built-in collimating lens to shape the beam.
AstroBeam laser collimator

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