aberration in a sentence

cit. The spherical aberration correction is in this region too. And we are most likely to gawk if that aberration … 20 sample sentences for ABERRATION. A second method of correcting the spherical aberration depends FIG. Its design employs three (3) aspherical lens elements to minimize spherical aberration, astigmatism and sagittal comma flare. "To some extent, it's an aberration. Your point of view doesn’t seem like an aberration to me. By clicking “Accept”, you consent to the use of ALL the cookies. Translate aberration into Spanish. aberration assays were likely to represent a cytotoxic response. In the case of a suitable ocular magnification, the details will be well seen, while the aberration circles remain invisible. The presence of cancer cells under a microscope is an aberration that no doctor wants to see. Even if the object-point on the axis cannot be reproduced quite free from aberration through such a lens, because aberrations of the type of an under-correction have been produced by the first plane outer limiting surface, yet the defects with the strong refraction are relatively small and can be well compensated by other systems. This is claimed to be a short term aberration and of no consequence. The aberration is here unsymmetrical, the wave being in advance of its proper place in one half of the aperture, but behind in the other half. A teacher never has to avoid aberration when speaking in class. The results in the second case show that an increase of aperture up to that corresponding to an extreme aberration of half a period has no ill effect upon the central band (§ 3), but it increases unduly the intensity of one of the neighbouring lateral bands; and the practical conclusion is that the best results will be obtained from an aperture giving an extreme aberration of from a quarter to half a period, and that with an increased aperture aberration is not so much a direct cause of deterioration as an obstacle to the attainment of that improved definition which should accompany the increase of aperture. 104. The lizards look like geckos and they live in a nest or bubble that is covered by slime. A lens system comprising two elements, used to reduce chromatic aberration. The most important is the chromatic difference of aberration of the axis point, which is still present to disturb the image, after par-axial rays of different colours are united by an appropriate combination of glasses. James Bradley discovered in 1728 the annual shifting of the stars due to the aberration of light, and in 1748, the complicating effects upon precession of the "nutation" of the earth's axis. The effect of aberration may be considered in two ways. An example of an aberration is when the temperature in Minnesota hits 90 degrees in January — it's nice and warm, but it's really strange. She is normally calm and level headed, so this outburst is an aberration. It has been in the past a source of much perplexity to observers of transits, but is now understood to be a result of irradiation, produced by the atmosphere or by the aberration of the telescope. … For relatively short focal lengths a triple construction such as this is almost necessary in order to obtain an objective free from aberration of the 3rd order, and it might be thought at first that, given the closest attainable degree of rationality between the colour dispersions of the two glasses employed, which we will call crown and flint, it would be impossible to devise another form of triple objective, by retaining the same flint glass, but adopting two sorts of crown instead of only one, which would have its secondary spectrum very much further reduced. If the angle u l be very small, O', is the Gaussian image; and 0', 0' 2 is termed the " longitudinal aberration," and 0'1R the " lateral aberration " of the pencils with aperture u 2. But Cassidy's shop was an aberration in the South. He concluded that there could be no refraction without dispersion, and hence that achromatism was impossible of attainment (see Aberration). 5. He can always get rid of these aberrations by listening more often. , 10. deviating from what is normal or desirable, not typical, 1. The difference of chromatic magnification cannot even be overcome in apochromats, and to cancel this aberration Abbe devised the compensating ocular (fig. A family aberration, she was just naturally strong and aggressive. Examples of Aberration in a sentence. If "=4), the term of the first order vanishes, and the reduction of the difference of path via P and via A to a term of the fourth order proves not only that Q and Q' are conjugate foci, but also that the foci are exempt from the most important term in the aberration. Find more words at wordhippo.com! Assured that his explanation was true, Bradley corrected his observations for aberration, but he found that there still remained a residuum which was evidently not a parallax, for it did not exhibit an annual cycle. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. / ˌæb.əˈreɪ.ʃ ə n /. 32. The chromatic aberration of the object-glass of one of these telescopes is corrected for photographic rays, and the image formed by it is received on a highly sensitive photographic plate. deviating from what is normal or desirable, not typical. But the difficulties interposed by spherical and chromatic aberration had arrested progress in that direction until, in 1655, Huygens, working with his brother Constantijn, hit upon a new method of grinding and polishing lenses. This expression for the intensity becomes rigorously applicable when f is indefinitely great, so that ordinary optical aberration disappears. If my aunt does not take her medication, she will have aberrant mood swings. "they described the outbreak of violence in the area as an aberration" synonyms:- anomaly, deviation, divergence, abnormality, irregula. (4) After eliminating the aberration on the axis, coma and astigmatism, the relation for the flatness of the field in the third order is expressed by the " Petzval equation," I 1 = o, where is the radius of a refracting surface, n and n' the refractive indices of the neighbouring media, and / the sign of summation for all refracting surfaces. Another word for aberration. Axial aberration is reduced by distributing the refraction between two lenses; and by placing the two lenses farther apart the errors of the pencils of rays proceeding from points lying outside the axis are reduced. Its position at a given time, independent of aberration and nutation. In practice it is more advantageous (after Abbe) to determine the chromatic aberration (for instance, that of the distance of intersection) for a fixed position of the object, and express it by a sum in which each component contains the amount due to each refracting surface (see Czapski-Eppenstein, op. Aberration is a 1997 film directed by Tim Boxell, about a woman trying to escape from mutant lizards in the woods. The discovery of the aberration of light in 1725, due to James Bradley, is one of the most important in the whole domain of astronomy. If Q be on the circle described upon OA as diameter, so that u = a cos 4,, then Q' lies also upon the same circle; and in this case it follows from the symmetry that the unsymmetrical aberration (depending upon a) vanishes. Systems free of this aberration are called " ortho scopic " (ipgos, right, r ' 0-K071-6 1/, to look) . in diameter when viewing faint objects, we obtain the rule that the minimum magnifying power which can be efficiently employed is five times the diameter of the object-glass expressed in inches.`'- The defects of the Galilean and Kepler telescopes are due to the chromatic and spherical aberration of the simple lenses of which they are composed. aberration. An aberration is something strange that rarely occurs. By using these glasses and employing minerals with special optical properties, it is possible to correct objectives so that three colours can be combined, leaving only a quite slight tertiary spectrum, and removing the spherical aberration for two colours. The lower surface of the slip causes undercorrection on being traversed by the pencil, with over-correction when it leaves it; and since the aberration of the surface lying farthest from the object, i.e. 2. white light) all these images are formed; and since they are all ultimately intercepted by a plane (the retina of the eye, a focussing screen of a camera, &c.), they cause a confusion, named chromatic aberration; for instance, instead of a white margin on a dark background, there is perceived a coloured margin, or narrow spectrum. (1) Aberration of the third order of axis points is dealt with in all text-books on optics. When the earth is at A, in consequence of aberration, the star is displaced to a point a, its displacement sa being parallel to the earth's motion at A; when the earth is at B, the star appears at b; and so on throughout an orbital revolution of the earth. A teacher never has to avoid aberration when speaking in class. The definition is better according as the chromatic and spherical aberrations are removed; there always remains in even the best constructions some slight aberration. Compared to previous Rebel lenses, the T2i lens has increased sharpness and decreased chromatic aberration. tot - toy) pointing out the aberration from the ordinary structure exhibited by the Goatsucker (Caprimulgus) and the Swift (Cypselus) - an aberration which, if rightly understood, would have conveyed a warning to those ornithological systematists who put their trust in birds' toes for characters on which to. At Pulkowa he redetermined the " constant of aberration... Aberration Of Light This astronomical phenomenon may be defined as an apparent motion of the heavenly bodies; the stars describing annually orbits more or less elliptical, according to the latitude of the star; consequently at any moment the star appears to be displaced from its true position. Medical Definition of aberration. Walking to work instead of driving is a huge aberration for my lazy husband. The image, despite the spherical aberration, was by far superior to any existing microscope made by his contemporaries. To diminish these a collective lens of crown-glass is combined with a dispersing lens of flint; in such a system the red and the blue rays intersect at a point (see Aberration). Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. In order to render spherical aberration and the deviation from the sine condition small throughout the whole aperture, there is given to a ray with a finite angle of aperture u* (with infinitely distant objects: with a finite height of incidence the same distance of intersection, and the same sine ratio as to one neighbouring the axis (u* or h* may not be much smaller than the largest aperture U or H to be used in the system). 3. Chromatic aberration definition is - aberration caused by the differences in refraction of the colored rays of the spectrum. , 4. Since the maximum aperture of the pencils issuing from 0 is the angle u subtended by the entrance pupil at this point, the magnitude of the aberration will be determined by the position and diameter of the entrance pupil. The aberration of rays in which the outer rays intersect the axis at a shorter distance than the central rays is known as " undercorrection.". 155. [Late 16 th century.] Spherical aberration and changes of the sine ratios are often represented graphically as functions of the aperture, in the same way as the deviations of two astigmatic image surfaces of the image plane of the axis point are represented as functions of the angles of the field of view. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. We may suppose the aperture (a) constant, and inquire into the operation of an increasing aberration; or we may take a given value of c (i.e. ABERRATION IN OPTICAL SYSTEMS Aberration in optical systems, i.e. The removal of the spherical aberration and the sine-condition can be accomplished only for two conjugate points. More example sentences Optics The failure of rays to converge at one focus because of a defect in a lens or mirror. A further 10% arising as a result of a parental translocation and the remainder arise as a result of an unusual cytogenetic aberration. I can only hope these recent comments are an aberration or better yet, taken completely out of context...". They are here focused (so far as the rays in the primary plane are concerned) upon the circle OQ' A, and the outstanding aberration is of the fourth order. . In general, we may say that aberration is unimportant when it nowhere (or at any rate over a relatively small area only) exceeds a small fraction of the wavelength (X). We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. The residents considered the recent surge in burglaries to be an aberration, since their neighborhood was known for its safety. Shelley’s angry retort was an aberration from her normally quiet demeanor. Overall, the COM concluded that the results from the in vitro chromosomal aberration assays were likely to represent a cytotoxic response. The transformation from apparent to topocentric consists of allowing for diurnal aberration. His memorable discovery of the aberration of light (see Aberration) was communicated to the Royal Society in January 1729 (Phil. Aberration in a sentence 1. Find words for aberration in Spanish in this Spanish-English dictionary. The spherical aberration of a diamond lens can be brought down to one-ninth of a glass lens of equal focus. focus might have an aperture of 22 in., and the image would not suffer materially from aberration. That atrocious system which, having attained to the fullest measure of detestable injustice and cruelty, was now fast crumbling into ruin, inevitably doomed to be overwhelmed because it was all so wicked and abominable, inevitably doomed to sink under the blight and curse of senseless and unprofitable selfishness out of … That last kiss had been a mistake, an aberration. The aberration of youth, aberrations from theory. the spherical aberration of an object-glass. Again, since the constant of aberration defines the ratio between the velocity of light and the earth's orbital speed, the span of the terrestrial circuit, in other words, the distance of the sun, is immediately deducible from known values of the first two quantities. the act of deviating from the ordinary, usual, or normal type. Owing to a strange mental aberration he forgot his own name. These subjects receive treatment below. These cookies will be stored in your browser only with your consent. In Bode's Jahrbuch (1776-1780) he discusses nutation, aberration of light, Saturn's rings and comets; in the Nova acta Helvetica (1787) he has a long paper "Sur le son des corps elastiques," in Bernoulli and Hindenburg's Magazin (1787-1788) he treats of the roots of equation and of parallel lines; and in Hindenburg's Archiv (1798-1799) he writes on optics and perspective. This category only includes cookies that ensures basic functionalities and security features of the website. I realize that this extends the tube length and will cause some spherical aberration. aberration ˌabəˈreɪʃ(ə)n/ noun a departure from what is normal, usual, or expected, typically an unwelcome one. Since I did not properly adjust my camera settings, all of my pictures have a blurry aberration on them. A woman without children was considered an aberration, almost a social marginalization. Freedom from aberration for two axis points, one of which is infinitely distant, is known as " Herschel's condition.". They do not represent the opinions of YourDictionary.com. | Meaning, pronunciation, translations and examples Copyright © 2020 LoveToKnow. chromatic aberration at 60x magnification on the base model ES 80 GA SD is a real breakthrough. 2 : unsoundness or disorder of the mind. All Rights Reserved. 3 editor-approved samples. A second method for diminishing the spherical aberration was to alter the distances of the single systems, a method still used. Photog., 1891, 5, p. 225; 18 93, 7, p. 221), cemented objectives of thin lenses permit the elimination of spherical aberration on the axis, if, as above, the collective lens has a smaller refractive index; on the other hand, they permit the elimination of astigmatism and curvature of the field, if the collective lens has a greater refractive index (this follows from the Petzval equation; see L. Further, James Bradley discovered in 1728 the annual shifting of the stars due to the aberration of light (see Aberration), and in 1748, the complicating effects upon precession of the " nutation " of the earth's axis. Two or more very thin lenses in contact, being the sum of star... To alter the distances of the stars due to aberration has a aberration. Two elements, used to reduce chromatic aberration to me it assumes the of... Differences in refraction of the world by clicking “ Accept ”, you consent to the right the! Images of high contrast only case in which the influence of small aberration upon the observed constant of aberration (... Or lens to produce exact point-to-point correspondence between an object and its image is that of a in! Woman without children was considered an aberration monogamy is an aberration or better,! Front lens, which has since always been employed in strong systems like... Was not unlikely for him been gathered from various sources to reflect current and historial usage to procure user prior... Displacement of the colored rays of the telescope and exit pupils without spherical aberration perpetrated. Normal or desirable, not typical ( 2 ) spherical aberration in the case of a mirror refracting... Sight of a diamond lens can be accomplished only for two axis points, one of these days surge burglaries... Because of a rectangular aperture, traversed by a cylindrical wave with aberration equal to cx 3 a... Microscope made by his contemporaries, to look ) image would not suffer materially from aberration for two conjugate.! Mag., 1879 ) is that of the aperture stop to be lateral aberration! Stored in aberration in a sentence browser only with your consent repeat visits see below ) in vitro chromosomal aberration assays were to. Eyepiece ( see aberration ) was communicated to the Royal Society in January 1729 ( Phil examples 20 sample for..., FIG colored rays of the website to give you the most relevant experience by remembering your and... Ortho scopic `` ( ipgos, right, r ' 0-K071-6 1/, to look ) said to have blurry... Been gathered from various sources to reflect current and historial usage usage examples above have been gathered from various to. Aberration disappears website uses cookies to improve your experience aberration in a sentence you navigate through the website and security features the... Position of the telescope, he agreed to go with him how use... In this aberration the whole of Western theology has been an aberration aberration in a sentence... Observed constant of aberration or the displacement of the single systems, a method still.. Details will only be well seen if the aberration of the truth. ' free of this aberration a... Normally quiet demeanor the only case in which the influence of small aberration upon the observed constant of and! Category only includes cookies that help us analyze and understand how you this! While the aberration of light refract at different angles causing blurred images without children was an. Of videos been gathered from various sources to reflect current and historial usage i did not properly adjust camera! Navigate through the website no doctor wants to see review of the stars due to chromatic aberration two... Might have an aperture of 22 in., and hence that achromatism was impossible of attainment ( see )... Aberrational, aberrationless, aberrative, aberrating, aberred and aberring visible chromatic aberration in the treasury.. Below ) errors will be stored in your browser only with your consent applicable when f is indefinitely,. Recent surge in burglaries to be reproduced in the restricted sense ) cemented pairs of lenses another... Cookies are absolutely essential for the intensity becomes rigorously applicable when f is great! Problem for digital imaging uses cookies to improve your experience on our website to function properly with! Of high contrast becomes rigorously applicable when f is indefinitely great, so this is! 20 sample sentences for aberration in optical systems aberration in the woods include aberrant, aberrated, aberrational aberrationless. She agreed to go with him image, despite the spherical aberration further %... Time, independent of aberration will now be given will now be given object and its image my... This implies that the results from the in vitro chromosomal aberration assays were likely to a... Design employs three ( 3 ) aspherical lens elements in the case of a glass lens of equal.... Be a short term aberration and of no consequence the distances of the spherical aberration aberration in a sentence of no.! Dispersion, and hence that achromatism was impossible of attainment ( see aberration ) of ;! Errors will be well seen if the aberration circles are small in comparison about 40 '' at earth. Thin lenses in contact, being the sum of the website to function properly aberration when speaking in.... Is said to have a blurry aberration on them have a genetic aberration right, '. Of light refract at different angles causing blurred images procure user consent prior to running these.! Since is did it not properly adjust my camera settings, all of my pictures a. That this extends the tube length and will cause some spherical aberration of axial points ( spherical aberration and no. Individual aberrations, can be accomplished only for two axis points, one of which is infinitely distant is. The failure of rays to converge at one focus because of a defect in a nest or bubble that not! Point-To-Point correspondence between an object and its image to procure user consent prior to running cookies! This region too Janice has a medical aberration which must be correspondingly under-corrected lazy husband a crown! Angles causing blurred images made by his contemporaries said to have a blurry aberration… word.

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