
	Where results make sense

Topic: Collimates

Related Topics

Coherent light

Virtual image

Schlieren photography

Reflection (physics)

Real image

Focal length

Aberration in optical systems

Optics

Lens (optics)

Presbyopia

Photographic lens

Magnifying glass

Astigmatism

Fred Perry

In the News (Thu 31 May 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	Collimated light - Wikipedia, the free encyclopedia
		Collimated light is light whose rays are parallel and thus has a plane wavefront.
		Light can be collimated by a number of processes, the easiest being to shine it on a parabolic concave mirror with the source at the focus.
		Laser light is often collimated due to being formed in a chamber between two such mirrors, in addition to being coherent.
	en.wikipedia.org /wiki/Collimated (267 words)

	Ion beam collimating grid to reduce added defects - Patent 6521897
		The collimating grid collimates the ion beamlets and disallows beam spread and limits the beam divergence during transients and steady state operation.
		By the addition of a collimator grid to the grid set of an ion beam source, as provided by this invention, the grid collimates the ion beamlets and disallows beam spread and limits the beam divergence during transients and steady state operations.
		By collimating the ion beamlets, disallowing beam spread and limiting the beam divergence during transients and steady state operations, the collimating grid ensures that the ion beam will hit and be confined to a specific target area, thereby eliminating potential defect problems on the substrate being coated.
	www.freepatentsonline.com /6521897.html (1831 words)

	Red dot sight - Wikipedia, the free encyclopedia
		Due to the fact that the reticle image is collimated, magnifying the image of the target is impractical, as it would make the sight too hard to hold steady.
		The collimated image does have its advantages, however, as the scope can be placed at any distance from the eye without distorting the image of the target or reticle.
		This lens allows light from the target to pass through unobstructed, but collimates and reflects the light of the reticle back to the shooter's eye, thus allowing for one- or two-eyed aiming.
	www.wikipedia.org /wiki/Red_dot_sights (752 words)

	U.S. Patent: 5031199 - X-ray lithography beamline method and apparatus - July 9, 1991
		The beam is then intercepted by a second refocusing mirror which has a saddle toroidal shape with a major concave radius of curvature and a minor convex radius of curvature.
		A third flat mirror may be interposed in the beam reflected from the second mirror and can pivot to change the angle of incidence to cause the beam to scan across the image plane.
		The refocusing mirror 43 collimates the X-ray beam 34 horizontally and focuses the beam vertically.
	www.everypatent.com /comp/pat5031199.html (5967 words)

	Fiber Optic Collimator (Site not responding. Last check: 2007-11-07)
		WPI’s Fiber Optic Collimator can be used for both collimating a light beam emitted by an optical fiber or coupling light from a collimated light beam into an optical fiber.
		The collimator can, for example, be used to guide a parallel light beam through a sample cuvette or an optical filter with virtually no optical losses.
		In this application, one collimator collimates the light into a parallel beam 5 mm in diameter, enabling it to pass a long distance without losing the energy.
	www.wpiinc.com /WPI_Web/Spectroscopy/FO_Collimator.html (177 words)

	Arges: Spechelle
		A grating spectrometer consists of entrance optics to collect the light from the source and focus it onto the entrance slit and a collimator lens or mirror that collimates the light for the diffraction grating responsible for dispersion and a camera lens or mirror that forms an image of the dispersed light onto the detector.
		Another advantage of echelle gratings is that the collimator and camera element actually become one and the same element, because the angles at which an echelle grating reflects the dispersed light are nearly equal to the angle at which the light falls onto the echelle.
		A beamsplitter (50% of the light goes passes, 50% is reflected) redirects the beam, which is collimated for the grating by the Littrow lens.
	www.arges.tue.nl /index.asp?pageLan=EN&pageId=37 (741 words)

	Blazars: The accelerating inner jet model. (Site not responding. Last check: 2007-11-07)
		The inner jet of a blazar is the section of the jet that connects the central engine with the VLBI core of the radio jet.
		This is a small (\la 1 pc) region where the jet is formed, collimated and accelerated to speeds close to that of light.
		In this work a simple relativistic hydrodynamic scheme that produces a simultaneously accelerating and converging flow is coupled with a detailed calculation of the evolution of the electron energy distribution and synchrotron emissivity due to relativistic electrons radiating in a mostly random magnetic field.
	www.aas.org /publications/baas/v28n2/aas188/abs/S023002.html (292 words)

	X-ray guides
		Usually a pinhole is used for collimating the beam and obtaining the spot of the necessary size on the sample.
		A single-pinhole collimator (or a double-pinhole collimator) can be easily substituted for the monocapillary of the same diameter d.
		Usually intensity gain relative to a double-pinhole collimator is much larger than intensity gain relative to a single-pinhole collimator if the source size is much larger than the pinhole (capillary) diameter d.
	www.ifg-adlershof.de /guides.htm (522 words)

	DAZLE - design concept
		A collimator aligned with the Nasmyth focus collimates the input (f/15) beam and presents it to a fold mirror beneath the CIRPASS camera.
		The optical train that collimates the light entering the instrument is being designed by the IoA, and the AAO's involvement at the CoDR stage is limited to noting certain design constraints and highlighting areas to which particular attention should be paid.
		Irrespective of the design of collimator is the need to avoid condensation on the outer surface of the first collimator lens, since the refrigerated enclosure keeps the instrument at a temperature of -40°C, and the outer lens is exposed to ambient air.
	www.aao.gov.au /dazle/details.html (1381 words)

	Tectron Telescopes -- a primer on collimation
		To explain just how important collimation is, try to understand this: If you have two similar mirrors, and one is 1/20th wave, and the other is 1/8 wave, the one that will easily outperform the other is the one with the best collimation.
		Many amateurs make the mistake of collimating the primary mirror of their telescope until they are blue in the face......without ever obtaining images to their satisfaction.
		The sight tube's main purpose is to collimate the diagonal mirror first by centering the diagonal mirror under the focuser.
	www.amateurastronomy.com /collimate.html (1239 words)

	US LASER CORP: Fiber Optic Beam Delivery
		The output coupler is a multi-element assembly which first collimates the diverging beam from the fiber output (the output collimator section), and then re-focuses it to form an image of the fiber core (the output objective assembly).
		The collimator and objective lens housings are threaded together, and may easily be removed and changed.
		Using a collimator, such as what is typically supplied on U.S. Laser fiber optic beam delivery systems (Model # 3303), allows the fiber to be positioned at a safe distance from the power detector, and protects the fiber end face from being damaged due to dust or dirt.
	www.uslasercorp.com /catalog/fobd.html (1193 words)

	CLU-IN.ORG \| Open Path Technologies: Measurement at a Distance (UV-DOAS)
		The typical system includes a light emitter that collimates the light from a source lamp, a transmitting telescope, a telescope that collects the attenuated light beam, a spectrometer, a single or multichannel receiving/detector unit, and a control and processing computer (see Exhibit 1).
		The light is collimated before being transmitted through a telescope to a receiving unit.
		Exhibit 1 shows a monostatic configuration where the collimated light is beamed through the area to be measured to a retroreflector that bounces it back through the measurement area to the system's receiving optics.
	www.clu-in.org /programs/21m2/openpath/uv-doas (1671 words)

	High Point Scientific, Inc. - Telescopes, Binoculars, Sport Optics and Accessories.
		This tool is necessary for placing the diagonal mirror in the proper place and will collimate the primary mirror much closer than can be done by eye or with a peep sight.Once your diagonal is in the proper place, you are ready for the Cheshire.
		It collimates refractors so well the Astro Physics buys them from us for their fine triplets.This is the final step for collimating your Newtonian.
		The collimation has to be close or this tool will frustrate you because it is so critical.
	www.highpointscientific.com /store/optCompareProducts.asp?idProduct=2465 (285 words)

	Panoramic dental radiography image intensification employing minification techniques - Patent 4287423
		A slot in the camera assembly collimates the x-rays which are continuously generated by the x-ray source, which x-rays are converted to light images of the patient's dental arch structure by only a single intensifying screen which remains stationary.
		The patient may remain stationary or be transported in a patient chair in accordance with various type known drive patterns in order to simulate the generally elliptical shape of the human dental arch; to obtain continuous or discontinuous type images and the like.
		In operation, x-rays generated by source 10 pass through dental arch area of patient P where the x-rays are attenuated in proportion to the density of the patient structure x-rayed.
	www.freepatentsonline.com /4287423.html (2378 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations (Site not responding. Last check: 2007-11-07)
		A cone-collimating device that collimates the beam to a rectangle, eliminates plastic-pointer scatter, controls aluminum-filter and air scatter, and can be used with the techniques currently employed is described for use with dental x-ray apparatus.
		Rectangular collimation of the beam reduces the primary irradiated skin surface area by 36% from that of the 2.75-in.
		It was concluded that the use of a rectangular collimated field of 4.5 by 5.5 cm with a roentgen-opaque metal cone is a practical method for considerably reducing unnecessary exposure in periapical intraoral roentgenographic examinations.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=4721826 (309 words)

	Monthly Notices of the Royal Astronomical Society Abstract (Site not responding. Last check: 2007-11-07)
		Studies of jets from young stellar objects (YSOs) suggest that material is launched from a small central region at wide opening angles and collimated by an interaction with the surrounding environment.
		The collimation is inevitable, regardless of the relative polarity of the disc field and stellar dipole, and the result is a more powerful and physically broader collimated flow than from the star–disc interaction alone.
		Within the collimation region, the morphology of the large-scale flow resembles a pitchfork, in projection.
	www.blackwellpublishing.com /abstract.asp?ref=0035-8711&vid=345&iid=2&aid=26&s=&site=1 (421 words)

	OGO3.2 - Optiek Info (Site not responding. Last check: 2007-11-07)
		C230TM-B 600-1050nm moderate NA optic for the collimation of a diode laser.
		C220TM-B 600-1-50nm AR coated lens in a ring to be used for the focussing of the collimated laser beam on to the fibre (f = 11mm, N.A.=0.25).
		This device collimates the output of the fibre.
	oed.its.tudelft.nl /ogo3.2/index.php/OptiekInfo (251 words)

	CloudyNight's forums: Diagonal or no diagonal?
		I suppose if you were ALWAYS going to use the same diagonal in the same precise orientation you could collimate with it in place - but it's best not to do so.
		Collimation needs to be done up high, the higher the better, and this means a pain in the neck.
		If you can though get the collimation spot on without as John points out, then establish whether it is any different with and without the diagonal.
	www.cloudynights.com /ubbthreads/showflat.php/Cat/1,2,3,4,5,8/Number/48567/page/4/view/collapsed/sb/11/o/all (226 words)

	Rambles Hdr (Site not responding. Last check: 2007-11-07)
		The authors conjecture that the oscillation results from the precession of an accretion disk surrounding two massive (100 million solar mass) fl holes forming a binary system at the core of the galaxy.
		The accretion disk collimates the emitted jet and the precession results from the dragging of space-time that occurs near rapidly rotating fl holes.
		If further observations confirm the periodicity, then the case for this model would be strengthened over other possibilities such as hydrodynamic and magnetic instabilities.
	www.jb.man.ac.uk /~ams/kitchin.html (331 words)

	Who Collimates Binoculars - Big Binocular Guide
		Celestron collimates its scopes on a precision laser collimator.
		In addition, Meade precision collimates the optics at the factory and then sets that position as the default setting.
		In addition, Meade precision collimates the optics at the factory and the...
	www.bigbinocularguide.com /who-collimates-binoculars.html (445 words)

	Portable Multispectral Telescope
		The collimated beam then enters an assembly of beam splitters, filters, and a mirror.
		The portion of the collimated beam emerging through each filter in this assembly contains only light in one of the desired spectral bands.
		A lens on the optical path for each spectral band focuses the collimated light onto the array of photodetectors in a video camera that is dedicated to producing the video image for that band.
	www.nasatech.com /Briefs/June99/SSC00048.html (444 words)

	Astron. Astrophys. 325, 1099-1114 (Site not responding. Last check: 2007-11-07)
		Simple analytical relations show that cylindrical collimation and superAlfvénic terminal velocities can be attained asymptotically which depend on the rotation rate, the collimation distance from the base and the pressure gradient.
		Physically acceptable solutions are obtained by a numerical integration of the radial dependence of the MHD system from the subAlfvénic to the asymptotically collimated regions and by a smooth crossing of the Alfvén critical surface.
		In the last case it is the toroidal magnetic field that collimates asymptotically the wind, while in the former the outflow of a slow rotator (respectively fast rotator) is collimated by the gas pressure (respectively by the magnetic field).
	aa.springer.de /bibs/7325003/2301099/small.htm (331 words)

	IngentaConnect Application of holographic diffractive doublets as collimators fo... (Site not responding. Last check: 2007-11-07)
		Two schemes for collimation of diode laser light beams with high cross-sectional ellipticity by means of a doublet of holographic diffractive elements are proposed and designed; one of the schemes is realized and tested.
		In both the schemes the first element of the doublet collimates the beam in the plane of the longer axis of the ellipse, and the second element collimates it in the perpendicular plane.
		A collimated He-Ne laser beam is employed for quality testing of collimation in a reverse way, with this beam impinging upon the second element.
	www.ingentaconnect.com /content/tandf/tmop/2002/00000049/00000011/art00011 (302 words)

	LaserMax - optical components, optical mounts, diffractive optics, circularizer, power supply
		LS-10 10X Telescopic Collimator - The Telescopic Collimator is a precision Galilean telescope that attaches to the front of the laser.
		The LS-10 also allows near field focus of a diffraction limited spot as close as 20" from the collimator and will reduce the spot size at 100 yards from 4" to 3/8" The input end thread is 1" x 32 TPI.
		Standard C-mount lenses, collimators, spatial filters and accessories can be readily screwed in place on the front of the laser.
	www.oemlasers.com /accessories.html (632 words)

	The Solstice Project - A Unique Solar Marking Construct
		An assembly of stone slabs on an isolated butte in New Mexico collimates sunlight onto spiral petroglyphs carved on a cliff face.
		The light illuminates the spirals in a changing pattern throughout the year and marks the solstices and equinoxes with particular images.
		The construct appears to be the result of deliberate work of the Anasazi Indians, the builders of the great pueblos in the area.
	www.solsticeproject.org /science.htm (5933 words)

	Meade Instruments Corporation - Meade 8" LX10 Telescope Instruction Manuals
		The optical collimation of any astronomical telescope used for serious purposes is important, but in the case of the Schmidt-Cassegrain design of the 8" LX10, such collimation is absolutely essential for good performance.
		To check the collimation of your LX10, center a bright star that is overhead with the supplied 25mm eyepiece.
		Caution: Do not force the three collimation screws past their normal travel and do not loosen them more than two full turns in a counterclockwise direction or the secondary mirror may come loose from its support.
	www.meade.com /manuals/lx10/d.html (1986 words)

	High-Power, Wideband Laser-Diode Transmitter Module (Site not responding. Last check: 2007-11-07)
		The roughly collimated laser beam also passes through a matched pair of lenses comprising a long-focal-length positive and a long-focal-length negative lens; the distance between these two lenses is adjusted to achieve fine adjustment of the collimation of the beam.
		A cubic beam splitter picks off a small fraction of the beam and directs it to another aspherical lens, which focuses this sample of the beam into a single-mode optical fiber for use in monitoring the modulation waveform or as a local-oscillator source for an optical receiver.
		To reduce the effects of optical feedback from the passive optical components into the laser, a quarter-wave plate is placed immediately after the first aspherical collimating lens, and adjusted such that the polarization of any reflected light passing through is rotated to be orthogonal with the original polarization of the laser.
	www.nasatech.com /Briefs/Jan00/GSC13824.html (556 words)

	Relativistic jet (Site not responding. Last check: 2007-11-07)
		A jet is created from subatomic particles and magnetic fields in the accretion disk of the supermassive fl hole in the nucleus of an active galaxy.
		The twisting of magnetic fields in the accretion disk collimates the outflow along the rotation axis of the fl hole, so when conditions are suitable, a jet will emerge from each face of the accretion disk.
		Although a disk's magnetic field and rotation are believed responsible for the formation of the axial radiation jet, the observed jets are more tightly collimated than predicted by current theory.
	www.worldhistory.com /wiki/R/Relativistic-jet.htm (244 words)

	WD MUX/DMUX (Site not responding. Last check: 2007-11-07)
		When acting as a MUX, the GRIN lens collimates the beams from the separate fibers.
		These collimated beams are reflected from the grating and refocused by the GRIN lens into the transmitting fiber.
		When acting as a DMUX, the GRIN lens collimates the beam from the transmitting fiber onto the grating.
	www.eas.asu.edu /~palais/demos/mux.htm (104 words)

Try your search on: Qwika (all wikis)