beam splitter

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beam

 [bēm]
a unidirectional, or approximately unidirectional, emission of electromagnetic radiation or particles.
useful beam in radiology, that part of the primary radiation that is permitted to emerge from the tubehead assembly of an x-ray machine, as limited by the aperture or port and accessory collimating devices.
beam splitter a device that reflects light from the output phosphor of an image intensifier to a photographic recording. Called also image distributor.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

beam splitter

Radiation oncology
A device that divides a beam of electromagnetic radiation into 2 or more distinct beams.
 
Telemedicine
A device that divides the image beam of a clinical examining scope so the physician has the choice of looking at the image on a video monitor or directly through the scope.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

beam splitter 

An optical system which separates an incident beam of light into two beams of lesser intensity, one reflected and the other transmitted, e.g. a semi-silvered mirror. Some beam splitters are made of birefringent material, which splits the incident light beam into oppositely polarized beams. They are called polarizing beam splitters. Example: Wollaston prism.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
References in periodicals archive ?
We are very excited about this new, higher extinction ratio because it escalates the level of proficiency to our beamsplitter thin film coating technology.”
In recent years we have used spinning, reflective optical choppers (ROCs) as beamsplitters in the NIST high-power, detector calibration system, instead of wedge-shaped transparent materials (WTMs), which had been used for this purpose over the past 25 years.
A new series of two axis (9x, 9y) adjustable beamsplitter mounts from Siskiyou Corporation utilise the firm's unique monolithic flexure construction to deliver high stability in a compact package.
Dispersive mirrors installed in the path of each band (hereafter: channel)-- compress the pulses to nearly Fourier limited durations before they are recombined, by the same type of beamsplitters, at the exit of the apparatus to create a new optical waveform.
While microscopy relies on more traditional optics solutions--including lenses, beamsplitters and photomultipliers tubes--spectroscopy requires gratings and mirrors.
PG&O's off-the-shelf thin films include ultraviolet (UV), infrared (IR), anti-reflective (AR), BBAR, cold mirror plate, hot mirrors, aluminized mirror, plate beamsplitters, indium tin oxide (ITO), maximum reflectors (Max Rs), and more.
Upgrade capabilities range from the ability to add multiple beamsplitters for expanded spectral range to step-scan capabilities for advanced applications.
Rolyn manufactures and distributes a wide line of high quality, off-the-shelf optics including simple or compound lenses, filters, prisms, mirrors, beamsplitters, reticles, objectives, eyepieces plus thousands of other stock items.
The beamsplitters and prisms add a significant light path between your focuser and the eyepieces.
Beamsplitters also extend the operating power range of the standards.