reflector

Definitions

  • WordNet 3.6
    • n reflector optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece "Isaac Newton invented the reflecting telescope in 1668"
    • n reflector device that reflects radiation
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Webster's Revised Unabridged Dictionary
    • Reflector (Physics) A device for reflecting sound.
    • Reflector (Physics) A reflecting telescope.
    • Reflector One who, or that which, reflects.
    • Reflector (Physics) Something having a polished surface for reflecting light or heat, as a mirror, a speculum, etc.
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Century Dictionary and Cyclopedia
    • n reflector One who reflects or considers.
    • n reflector One who casts reflections; a censurer.
    • n reflector That which reflects. Specifically— A polished surface of metal or any other suitable material, used for the purpose of reflecting rays of light, heat, or sound in any required direction. Reflectors may be either plane or curvilinear; of the former the common mirror is a familiar example. Curvilinear reflectors admit of a great variety of forms, according to the purposes for which they are employed: they may be either convex or concave, spherical, elliptical, parabolic, or hyperbolic, etc. The parabolic form is perhaps the most generally serviceable, being used for many purposes of illumination as well as for various highly important philosophical instruments. Its property is to reflect, in parallel lines, all rays diverging from the focus of the parabola, and conversely. A series of parabolic mirrors, by which the rays from one or more lamps were reflected in a parallel beam, so as to render the light visible at a great distance, was the arrangement generally employed in lighthouses previous to the invention of the Fresnel lamp, or dioptric light. The annexed cut is a section of a ship's lantern fitted with an Argand lamp and parabolic reflector. a a is the reflector, b the lamp, situated in the focus of the polished concave paraboloid, c the oil-cistern, d the outer frame of the lantern, and e the chimney for the escape of the products of combustion.
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Chambers's Twentieth Century Dictionary
    • Reflector one who, or that which, reflects: a mirror or polished reflecting surface: a censurer
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Etymology

Webster's Revised Unabridged Dictionary
Cf. F. réflecteur,

Usage

In literature:

Those that have bright metal surfaces radiate worst, though such are what are used for reflectors.
"Harper's New Monthly Magazine, Vol. 2, No. 8, January, 1851" by Various
A jack light ought to have a reflector, but the boys had no means of contriving one.
"Northern Diamonds" by Frank Lillie Pollock
On the evening in question, a lamp with a reflector was placed in front of the picture I had come to see, probably in my honour.
"An Englishman in Paris" by Albert D. (Albert Dresden) Vandam
Mary pulled up a chair and tried to reach the lamp in the great reflector; it was too high.
"The Book of Courage" by John Thomson Faris
The average reflector is built of light tin by the village tinsmith.
"Camp and Trail" by Stewart Edward White
Have you never seen her by the help of a reflector before?
"Her Season in Bath" by Emma Marshall
With the reflector and the refractor it had been found that the field of good images was strictly limited.
"Astronomical Discovery" by Herbert Hall Turner
In the barns and chicken sheds of the valley there was plenty of aluminum sheeting to build reflectors.
"The Year When Stardust Fell" by Raymond F. Jones
About the interior blazed pine torches and occasional lanterns with tin reflectors.
"The Tempering" by Charles Neville Buck
Reflectors were so arranged in the windows that twice as much moonlight fell on his crib as on that of any ordinary child.
"In Story-land" by Elizabeth Harrison
Webb squinted hazily up at one of the reflector-backed lamps.
"When 'Bear Cat' Went Dry" by Charles Neville Buck
His duty was to fill and trim and light his lamps, and keep bright the reflectors.
"Cape Cod" by Henry D. Thoreau
Norris brought the lamp with the strong reflector, and I flashed back an answer.
"The Voodoo Gold Trail" by Walter Walden
The crystal layer possibly serves as a reflector.
"The Nature of Animal Light" by E. Newton Harvey
The light, gathered by immense reflectors of tin, fell full upon a long table placed in the centre of the apartment.
"Garrick's Pupil" by Auguston Filon
The moment the third response had been given to his signal, the Coromantee stepped up to his reflector and blew out the light.
"The Maroon" by Mayne Reid
The great reflectors still mirrored the sunlight and the stars.
"A Woman's Experience in the Great War" by Louise Mack
He soon made a seven-foot reflector, then a ten-foot reflector.
"Famous Men of Science" by Sarah K. Bolton
All at once, I was startled at perceiving a new image upon the aqueous reflector.
"Osceola the Seminole" by Mayne Reid
Hands in pocket, he stood in a shadow above the green reflector.
"The Messenger" by Elizabeth Robins
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In news:

The dish was usually around 30m across, and they focused the signals onto a small sub-reflector on a tripod and then down a horn to the LNA cabin at the back of the dish.
Runners, hikers and bicyclists are wearing lighter weatherproof fabrics, with reflectors, for greater visibility on dark days and at night.
Design and Build Your Own Signal-Boosting Reflectors.
The Daily Reflector of Greenville, N.C.
Design and Build Your Own Signal-Boosting Reflectors .
Join the SCR e-mail reflector by sending an e-mail to SCR -L-subscribe@yahoogroups.com.
Aileen Devlin/The Daily Reflector (Special to the Times).
The Daily Reflector of Greenville reported that Pitt County officials say there is no block of time available to teach cursive writing as they focus on the new standards designed to help students prepare for living in the 21st Century.
The Daily Reflector, Aileen Devlin/AP Photo.
The Parking Structure Luminaire has been engineered to successfully master both attributes of reflector and refractor available in a single unit.
"€œMan With Reflectors" by Kit Austin.
Halloween is when babies in reflector vests go "Twick or tweat" and smiling neighbors ask, "And what are you supposed to be, little girl.".
Under federal requirements, trailers and semi-trailers manufactured prior to December 1, 1993 must be retrofitted with retroreflective tape or an array of reflex reflectors.
1956 Ford F 100 Reflectors.
X 7 in LED headlamp was designed to utilize cutting-edge 2 LED arrays and complex reflector, creating a smooth, even light output and clean streamlined appearance, the company said.
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In science:

The crystal CWO3-1 was connected optically with the help of Dow Corning Q2-3067 optical couplant to 3" photomultiplier (PMT) Philips XP2412, and covered by 3 layers of PTFE reflector tape. The measurements were carried out with 10 ms shaping time of the ORTEC 572 spectrometric amplifier.
Proceedings of the 1st International Workshop "Radiopure Scintillators for EURECA" (RPScint'2008)
The plastic bar is covered by a specular reflector (Reflector Coefficient = 0.98). The FANO factor is set to 1.
Light collection of POLAR detector
Light collection in long plastic bars is discueed to promote POLAR performance. We have compared the amplitude uniformity for solutions with different scintillator surface and different covering. The best uniformity is given by polished surface and ESR reflector.
Light collection of POLAR detector
The distance of the grating from the cloak is 24m. The insets show the oblique view of the carpet cloak (top) and the cloak/reflector interface (bottom).
Homogeneous optical cloak constructed with uniform layered structures
Other systems place the transmitter over the monitor and use an infrared reflector that is attached to the user ’s forehead or glasses. The user ’s head movements control the mouse cursor on the screen.
A Prototype System for Controlling a Computer by Head Movements and Voice Commands
The principal loss is caused by the blockage of incoming radiation by the sub-reflector and supporting arms. Other losses might be caused by minor residual misalignments.
Terahertz photometer to observe solar flares in continuum
The other Tx antenna was a modified reflector able to produce a pattern corresponding to an OAM mode with ℓ = 1.
Comment on 'Encoding many channels on the same frequency through radio vorticity: first experimental test'
The Raman laser is obtained from a distributed-Bragg-reflector laser diode and is frequency-tuned by a double-pass acousto-optic modulator before it is amplified by two stages of saturated slave lasers.
A cold-atom random laser
The transmittance limit is therefore T < 2 x 10-17, a value lower than predicted by five orders of magnitude. A further test was conducted using a 50 W halogen projector lamp (with reflector) as a source and the photomultiplier as a detector.
Experimental test of magnetic photons
Instruments used by amateurs are mostly reflectors with an aperture from 15 to 40 cm.
Contribution of amateur observations to Saturn storm studies
Such goals have not intentionally sidestepped human involvement in space observatories, as exemplified by the hugely successful HST program or by even more ambitious recommendations that never came to pass, such as the Large Deployable Reflector (LDR).
Does the Lunar Surface Still Offer Value As a Site for Astronomical Observatories?
The Hubble Space Telescope (HST) was launched in April 1990, and consists of a f/24 2.4 m Ritchey-Chretien reflector.
Rings and Halos in the Mid-Infrared: The Planetary Nebulae NGC 7354 and NGC 3242
Minchin went on to make further successful photoelectric observations of stars in 1895 and 1896 using the 24 inch reflector at Daramona Observatory in County Westmeath (101).
John Ellard Gore: of immensity and minuteness
Radiation pressure on a submerged absorptive partial reflector deduced from the Doppler shift Masud Mansuripur† and Armis R.
Radiation pressure on a submerged absorptive partial reflector deduced from the Doppler shift
Here we apply the Doppler shift argument to a submerged partial reflector (one that absorbs a fraction of the incident light), deducing in the process the magnitude of the photon momentum within the submerging medium.
Radiation pressure on a submerged absorptive partial reflector deduced from the Doppler shift
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