What's the difference between reflector and refractor?
Reflector
Definition:
(n.) One who, or that which, reflects.
(n.) Something having a polished surface for reflecting light or heat, as a mirror, a speculum, etc.
(n.) A reflecting telescope.
(n.) A device for reflecting sound.
Example Sentences:
(1) A changed position of the mirror-reflector in the Rubin-2 thermovision unit as well as the use of an improved model of the couch-chair and a special cassette for electrochemical paper reduce the labour input and raise the information value of the method.
(2) As radiation sources, the following ones have proved useful: high-pressure mercury-vapour lamps, compound radiation systems consisting of high-pressure mercury-vapour burner, series coiled filament and reflector bulbs made of special glass as well as halogen metal-vapour lamps.
(3) We present applications to speckle reduction, detection of specular reflectors, attenuation estimation and ultrasound imaging.
(4) The likelihood for men to remarry is approximately five to six times higher and can be best interpreted as a reflector of the distribution of sexes on the "remarriage market", rather than as an expression of any differential priorities or attitudes between sex groups.
(5) It is estimated that about 30% of scintillation light can be collected at one end of such a counter, with a non-uniformity not greater than 10%, if magnesium oxide is used as the external reflector at all other surfaces.
(6) In this paper, it is demonstrated that the presence of a cepstral peak depends on the form of the probability density function (pdf) of the separation between reflectors.
(7) The data indicate that pharmacological stimulation of the peripheral arterial chemoreceptors by almitrine bismesylate in normoxic healthy humans causes reflectorically a slight renal vasoconstriction and a long-lasting inhibition of renal tubular sodium reabsorption.
(8) Therefore, the Doppler signal from a strong reflector distant from the center of the sample volume may mask the signal of a weak reflector located within the center.
(9) Moreover, strong echo-reflectors, such as calcification or prosthetic heart valves, create large acoustic shadowing effects behind which obtaining an ultrasound signal is difficult if not impossible.
(10) An even bigger motorcade collected us at the airport, security men in reflector shades jumping out and opening doors as our cars slowed down.
(11) Environmental noxious agents initiate hyper-reflectoric reactions of the mucosa, which seems to be the most impressive factor causing the change in rhinological diseases nowadays.
(12) The model includes magnitude and position of specular echoes, a random description of echoes from diffuse reflectors, and a parametric characterization of attenuation.
(13) Buried in the berm will be radar reflectors, magnets and a “Storage Room”, constructed around a stone slab too big to be removed via the chamber entrance.
(14) The use of levels of plasma HVA as a noninvasive reflector of DA function provides a research strategy for longitudinal studies of neuroleptic effects in schizophrenia.
(15) Reverberation produces a set of equally spaced artifactual echoes distal to the real reflectors.
(16) The shock wave ellipsoid reflector position is adjusted to the stone with a computer assisted positioning device.
(17) Four reflectors are fixed on the face of subject; two others are fixed on a metallic system that is glued on the buccal face of inferior canines.
(18) The manual therapy enables the treatment of the reflectoric expression of these disturbances.
(19) Disturbance of muscle coordination by reflectoric afferences from cervical or shoulder regions.
(20) On the other hand, extreme reflectoric muscle contractions, caused by a rotational trauma can cause chondromalacic lesions in the femoro-patellar joint, broadening the syndrome of the "unhappy triad" to an "unhappy tetrad".
Refractor
Definition:
(n.) Anything that refracts
(n.) A refracting telescope, in which the image to be viewed is formed by the refraction of light in passing through a convex lens.
Example Sentences:
(1) Using it on young children which are unco-operative the Auto-Refractor is not as sufficient as we hoped it to be.
(2) Four subjective measures of the refractive error of 42 eyes (21 patients) were obtained by 2 examiners, one using a Humphrey Vision Analyzer TM and the other using a conventional refractor.
(3) -- The important field of the Auto-Refractor is the routine refractioning of co-operative patients.
(4) However, for aphakic patients and for patients with clear media and cylindric corrections over 0.50 diopters, the automatic refractor can be used as a substitute for retinoscopy in determining the starting point for a subjective refraction.
(5) Eighty patient-volunteers were refracted by the computer-assisted Refractor III system and the results were compared with those obtained by the usual manual method.
(6) The Bausch and Lomb IVEX (Integrated Vision Examination System) is a computerized refractor, designed for both subjective and objective refraction and binocular vision testing.
(7) Automatic refractors are expected to become an essential tool in current ophthalmological.
(8) A Humphrey Automatic Refractor Model 570 was used to measure the impairment of visual acuity for low contrast optotypes as a result of glare for normal subjects and for subjects with cataracts.
(9) The data were also compared with conventional measurements of refractive error obtained by standard subjective techniques and by an automated infrared refractor.
(10) On the other hand we give a report of our experience using the Auto-Refractor 6600, the before-mentioned measurings were performed with.
(11) The results showed that data from the IVEX Refraction System correlated highly with data from the standard refractor, but a small amount (0.25 D to 0.37 D) of instrument myopia was present in most instances.
(12) This error can be directly and readily eliminated only in computer-actuated refractors by including a computer program which calculates the effective power and makes the necessary correction.
(13) The RM 5000 Auto-refractor was evaluated for one year on 3,618 eyes of 2,037 non selected patients undergoing refraction.
(14) A new refraction system employing traditional modes of testing combined with microprocessor-based electronics and new optical technology was evaluated in a controlled study to determine if the instrument produced subjective refractions corresponding to the traditional refractor.
(15) The refractor consisted of a mirror telephoto lens and strobe flash designed to mimic the action of a retinoscope.
(16) The use of automatic refractors under those conditions holds promise for filling the needs in Third World countries, and suggestions are given for adapting these instruments for the particular conditions encountered during this study.
(17) We failed to express viral genome in refractor phase.
(18) Class-3 drugs prolong refractoring in all compartments of the heart by preventing re-entry in both, AV nodal tachycardias and AV re-entry in the WPW syndrome.
(19) These developments formed the basis for invention of a new subjective refractor-the Vision Analyzer- whose novel design and rapid operation are described.
(20) The effective power of sphero-cylindrical combinations in all currently available eye refractors, when powers of eight to ten diopters are exceeded, may differ from the summated labeled power by a quarter diopter or more, which can be clinically significant.