aspheric pronunciation

We are Hiring! This is a satire channel. Aspheric lenses are often used in eyeglasses. aspheric. Aspheric lenses have a slimmer profile for virtually all prescriptions, but the difference is especially dramatic in lenses that correct high amounts of farsightedness.Lenses that correct farsightedness (convex or "plus" lenses) are thicker in the center and thinner at their edge. Hex-O-Tech provides clearer vision and better protection with coatings that are typically associated with premium Rx lenses. adjective. An aspheric lens is designed with less curvature than its traditional counterpart. See aspherical 'Designs incorporating aspheric optics can magnify the image by about 20X; higher values require folded compound magnification schemes.' . using aspheric curves, compensation of the refractive effect in the periphery of the lens can be optimized. But IOL makers . Simulation results are compared with results obtained with conventional optical design software to prove that this . Subscribe for more pronunciation videos. aspheric: 1 adj varying slightly from a perfectly spherical shape Synonyms: aspherical rounded curving and somewhat round in shape rather than jagged We are Hiring! If various factors, such as high image quality, numerical aperture or maximum space saving must be considered within an optical setup, the asphere is the best choice. . Aspheric definition: a lens that has a shape that is not completely round | Meaning, pronunciation, translations and examples Polycarbonate lens material is an impact-resistant material that has a medium index, making it somewhat less thick than standard plastic lenses but thicker than high . It improves depth of field and visual acuity at all distances and reduces refractive astigmatism. Examples of Contact Lenses with Aspherical Optical Lens Design Designing an optical disk lens without analytical definition of aspheric surfaces Ning Wei, Mali Gong, Ping Yan, and Haitao Zhang We have developed a new method to design aspheric lenses. Aspherical definition: a lens that has a shape that is not completely round | Meaning, pronunciation, translations and examples Aspheric means "non-spherical," so there is less of a bulge or curve. ic ( ā-sfer'ik ), Denoting a paraboloidal surface, especially of a lens or mirror, which eliminates spheric aberration. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares. The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism . 1. aspheric. Aspheric lenses accomplish the same amount of refraction but are flatter and slimmer. . Find Aquaclear Premium parameters here! It was founded by lead singer and guitarist Kurt Cobain and bassist Krist Novoselic. The conventional technique is usually based on analytic definition of optical surfaces; in the new method discretely defined aspheres are used, and the final design is attained point by point with an iterative algorithm. Domain category: It has most aspheric terms (conic, polynomial, and Zernike), and can take a square grid of sag values from a table defined in a text-file. Base Radius (R): The radius used in the aspheric definition. Meaning: Varying slightly from a perfectly spherical shape. Aspheric means a non spherical surface or lens, mostly in the optical sense it has come to mean parabolic curves. A combination of thin lens design and continuous moisture; Great for patients who want to seize the daily 11) Meniscus lens. Thereby attempting to either compensate for spherical abberattions or have a progressive focal length. Check out the pronunciation, synonyms and grammar. American Heritage® Dictionary of the English. aspheric - Dictionary definition and meaning for word aspheric. Spherical Aberration Correction. This is the same as the vertex radius unless an A2 term is used (strongly discouraged). You may have seen 'Asph' or 'Aspheric' marked on a camera lens or in lens specifications. This Aspheric, Spherical soft contact lens is brought to you by Coopervision. High Definition Optics, an aspheric design that reduces spherical aberration over a range of powers. This increases the size and weight when a prescription is strong. Intuitive definition of the optical zone. The word aspheric uses 8 letters: a, c, e, h, i, p, r, s . Think: flatter and thinner. Comfilcon A material. Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content . Aspheric lenses are smoother and flatter, reducing the distortion that occurs when someone wears glasses. PolyVue 38 HD (High Definition) Aspheric, unlike other aspheric lenses, improved visual acuity at all distances. 12) Spaced doublet. 1. Scrabble US 15. The aspherical lens element has helped to improve the optical quality of camera lenses in recent years. Definition of Aspheric. Wilson RH(1), Brost RC, Strip DR, Sudol RJ, Youngworth RN, McLaughlin PO. . ×. Conventional lenses have the same curve across their entire surface, like a ping-pong ball. Augen High Definition Single Vision Lenses A New Approach to Aspheric Design. Denoting a paraboloidal surface, especially of a lens or mirror, that eliminates spherical aberration. part of a sphere. The literal meaning of the term . Aspherical definition, (of a reflecting surface or lens) deviating slightly from a perfectly spherical 1 shape and relatively free from aberrations. . Nirvana (Buddhism) - Nirvana (निर्वाण, Sanskrit: nirvāṇa; Pali: nibbana, nibbāna) is the goal of the Buddhist path. Over the years two approaches have been taken by manufacturers with respect to the correction of spherical aberration in contact lenses. We have developed a new method to design aspheric lenses. 13) Aplanatic points. ISO also includes the lateral displacement L to fully characterize an aspheric surface's centration. The research explores the main components and nuances of geographical areas while adhering to the structure of the worldwide Double Aspheric Lens market competency study. They're called aspheric lenses and are great for people (like me) with slight astigmatisms.. a Brit different. 1 Aspheric Lens Market Definition and Overview 1.1 Objectives of the Study 1.2 Overview of Aspheric Lens 1.3 Aspheric Lens Market Scope and Market Size Estimation 1.4 Market Segmentation Nirvana (band) - Nirvana was an American rock band formed in Aberdeen, Washington in 1987. This is the same as the vertex radius unless an A2 term is used (strongly discouraged). The market definition, classifications, applications, engagements, and global Double Aspheric Lens enterprise trends are all examined in this report. Intraocular lenses (IOLs) are medical devices that are implanted inside the eye to replace the eye's natural lens when it is removed during cataract surgery.IOLs also are used for a type of vision correction surgery called refractive lens exchange.. Before the use of intraocular lenses, if you had cataracts removed, you had to wear very thick glasses or special contact lenses in order to see . See more. 14) Fourth-order Synonyms: aspheric; aspherical Similar: rounded (curving and somewhat round in shape rather than jagged). aspheric (comparative more aspheric, superlative most aspheric) aspherical; Translations . Firstly, the coordinates of the edge point of aspheric surface x 1 and y 1 are calculated from the aspheric surface equation and aperture or arc height of edge point. Definition of aspheric : departing slightly from the spherical form especially in order to correct for spherical aberration an aspheric lens First Known Use of aspheric 1869, in the meaning defined above Learn More About aspheric Time Traveler for aspheric The first known use of aspheric was in 1869 See more words from the same year In a perfect world, all lenses would work like a pinhole camera lens. Aspheric Design and Specification. An atoric surface with a differing amount of asphericity applied to the sphere and cylinder meridians. Aspheric lenses are any lenses whose surface angles and profiles are neither part of a sphere nor part of a cylinder. aspheric: 1 adj varying slightly from a perfectly spherical shape Synonyms: aspherical rounded curving and somewhat round in shape rather than jagged The fitting is very simple: Add +0.50 diopter to the spherical equivalent of your patient. The advanced aspheric lens design provides thin, lightweight and comfortable lenses with reduced eye magnification. Aspheric lenses. Local Radius: Radius of curvature at a given location on the asphere. 1. Aspheric Cylinder Curve Aspheric Sphere Curve Figure 5. Dispensing an aspheric lens, or using a flatter base curve in the highest-powered lens can reduce the visual symptoms linked to aniseikonia. Augen High Definition Single Vision Lenses feature a patented double aspheric design that provides wide, clear, natural vision - regardless of prescription.. Augen HD Single Vision Lenses extend the benefits of asphericity to all prescriptions including hard-to-fill higher single vision Rx's. Atoricity is an extension of aspheric design technology, allowing lens designers to optimize for both the sphere and cylinder powers of a lens. UK English definition of ASPHERIC along with additional meanings, example sentences, and ways to say. High Definition Aspheric Anti Glare Lenses. Varying slightly from sphericity and having only slight aberration, as a lens. Synonyms: aspheric; aspherical. Meaning: Varying slightly from a perfectly spherical shape. Author information: (1)Production Systems Engineering Technology Division, Eastman Kodak Company, 2901 Juan Tabo NE, Suite 210, Albuquerque, New Mexico 87112-1881, USA. Czech: asférick . 9) Afocal doublet. Aspheric lens surfaces have become an attractive feature for new IOLs over the last decade, since ophthalmologists began applying the lessons learned from laser vision correction to cataract surgery. aspheric ( əˈsfɛrɪk; eɪˈsfɛrɪk) n a lens that has a shape that is not completely rounda contact lens with changing lens strength adj having a shape that is not completely round Collins English Dictionary - Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 aspheric - Dictionary definition and meaning for word aspheric. We have developed a new method to design aspheric lenses. Aspheric lenses are rotationally symmetrical optics whose radius of curvature deviates radially from the center of the lens. They're called aspheric lenses and are great for people (like me) with slight astigmatisms.. a Brit different. Augen Aspheric / Double Aspheric Technology A New Approach to Aspheric Design Modern aspheric semi-finished lens blanks are rotationally symmetrical - that is, within a base curve there is only one amount of asphericity and it is the same in all meridians for all prescriptions for which the lens blank is intended. This enhanced vision quality occurs by focusing light to a common focal point on the back of your eye, instead of a general area. Since Thanks to this special surface . Definition (adj) varying slightly from a perfectly spherical shape Synonyms: aspherical Connect with us on Facebook. Aspheric Refractive Correction of Irregular Astimatism 105 Fig. Mnemonic Dictionary. World Optic offers the latest technology including High Definition lenses with brands including Augen, Hoya, Varilux, Sola, Essilor amongst other. Let's take a look at how conventional lenses are designed for far and . Whitehead gave me a very difficult problem - one that had been attacked unsuccessfully for a quarter of a century - namely, to show that knots are "aspheric" (we won't . An aspheric lens can be convex, concave and even free-form depending on the desired optical performance. In both farsighted and nearsighted prescriptions, aspheric lenses provide a slimmer profile and minimize eye distortion without compromising optical quality. 10) Aspheric plate. Quarter diopter IOL | Bi-Aspheric High Definition Vision Yellow more information on www.lenstec.com Single piece hydrophilic acrylic Lenstec Softec HDY » Most accurate IOL with patented Bi-aspheric design with square edge technology » Greater precision due to quarter diopter increments » Tighter manufacturing diopter tolerance within +/- 0.11 D * Used in higher-quality optics and increasingly in consumer-grade optics to correct aberrations which would be otherwise impossible or need many more elements. The lateral displacement of the asphere is the distance from the point of rotational symmetry of the aspheric surface to the datum axis, which, as noted above, is typically defined by the outer mechanical diameter. randall.wilson@kodak.com When the high-order aspheric surface is described . Dictionary entry details • ASPHERIC (adjective) Sense 1. Definition of aspheric in English: aspheric. Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. An aspheric lens element in the eyepiece increases resolution. aspheric is playable in: Words With Friends 16. Everything daily disposable patients need at a great value. In order the analyse Effective Optical Zone in our treatments in a systematic way . Pure HD are high definition soft clear aspheric lenses designed for clearer resolution and sharper contrast. Let's take a look at how conventional lenses are designed for far and . Browse the use examples 'isoplanatic' in the great English corpus. ×. PolyVue High Definition Aspheric (HD/HD2/HD Dailies) Unlike other aspheric lenses, PolyVue High Definition Aspheric incorporates the ideal aspheric curvature for each soft lens power to compensate for aberration caused by lens flexure on the eye. Approach 1 . The most notable benefit of aspheric lenses is their ability to correct for spherical aberration, an optical effect which causes incident light rays to focus at different points when forming an image, creating a blur.Spherical aberration is commonly seen in spherical lenses, such as plano-convex or double-convex lens shapes, but aspheric lenses focus light to a . Optical designs often specify both surface form and centering (tilt and lateral displacement) tolerances on aspheric surfaces. The definition of the optical axis of a fabricated surface - particularly an aspheric surface - must be used consistently in the design, tolerancing and fabrication stages of lens production. It's now widely regarded as a mark of excellence. Consider the following 3 examples. This ensures that nearly all wearers enjoy . Learn the definition of 'isoplanatic'. It finds the best-fitting spherical surface, notes the maximum deviation between aspheric surface and the best-fitting spherical surface minimum, and this maximum deviation is defined as the maximal asphericity of aspheric surface. Unlike a spherical surface, the local radius is constantly changing on an asphere. aspheric - find the meaning, anagrams and hook words with aspheric and much more. Unlike a spherical surface, the local radius is constantly changing on an asphere. Definition: Lenses with one or more surfaces which are not spherical i.e. In short the radius increases or decreases as it radiates from center. ¹ Source: wiktionary.com. The radius of the best-fitting spherical surface is calculated using (5) R = x 1 2 + y 1 2 2 x 1.. Then the aspheric surface is divided into N equal shares in one coordinate axis. Definition (adj) varying slightly from a perfectly spherical shape Synonyms: aspherical Connect with us on Facebook. Nir. Base Radius (R): The radius used in the aspheric definition. eyeOs features state of the art advanced lens technology that is unprecedented in reading eyewear. Definition of Aspheric. PolyVue 38 High Definition Aspheric lenses also increased depth of field, reduced refractive astigmatism, and improved contrast sensitivity. Local Radius: Radius of curvature at a given location on the asphere. Search. aspheric - Meaning in English, what is the meaning of aspheric in English dictionary, pronunciation, synonyms, usage examples and definitions of aspheric in English and English. This is a satire channel. High Definition lenses usually have a double aspheric design producing an enhanced wider visual acuity They are available as single vision lenses, or a reading prescription that corrects presbyopia ( age-related farsightedness) can also be added, such as in a bifocal or progressive lens. In both farsighted and nearsighted prescriptions, aspheric lenses provide a slimmer profile and minimize eye distortion without compromising optical quality. In order the analyse Effective Optical Zone in our treatments in a systematic way consistent with formal definitions, we decided to base our analysis up on previous knowledge. Current standards do not specify how to interpret such tolerances, and in particular they do not define the position of an aspheric surface that has form errors. Depending on the patient's prescription, this could result in improved visual acuity at all distances, as well as an increased depth of field . Aspherical lens element. Direct anagrams of aspheric. Mnemonic Dictionary. Aspheric lenses are great for reducing thickness and especially reducing eye distortion as seen from the outside, but aspheric is not a material, it's a type of lens curvature. 1.60 super tough HD aspheric surface: Myopia 0-800 Astigmatism 0-200 1.60-8 lens aspheric high-definition super tough resin lens 1.60-8 lens aspheric high-definition super tough resin lens Conventional lenses have a spherical curvature on the front of the lens (like a basketball). The conventional technique is usually based on analytic definition of optical surfaces; in the new method discretely defined aspheres are used, and the final . Dictionary entry details • ASPHERICAL (adjective) Sense 1. Scrabble UK 15. High-index plastic lenses correct all types of refractive errors, including myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. Aspheric Optics is a lens design technology claiming to reduce inherent and induced spherical aberration and improve visual performance. For an aspheric surface with rotational symmetry, a common way to define the axis is to use an optimization routine to "move" the equation of the . The aspheric des cal adj. Words with the same length and used letters. The grid data definition is defined in the Help File under The Setup Tab > Editors Group (Setup Tab) > Lens Data Editor > Sequential Surfaces (lens data editor) > Grid Sag, and it looks like the following. The ideal aspheric curvature for each soft lens power to compensate for aberration caused by lens flexure on the eye. • 3) Using an aspheric surface • 3) Lens splitting • 4) Lens bending • 5) Index of refraction dependence • 6) Critical air space • 7) Field lens 8) Merte surface . These lenses are designed to eliminate the positive spherical aberration added by traditional IOLs to the pseudophakic visual axis. How to pronounce the word aspheric. Adjective. aspheric. Think: flatter and thinner. Search. aspherical ¹. An aspheric lens or asphere (often labeled ASPH on eye pieces) is a lens whose surface profiles are not portions of a sphere or cylinder.In photography, a lens assembly that includes an aspheric element is often called an aspherical lens.. Definition of aspheric . Simulation results ar … In contrast to spherical surfaces, form and centering errors are coupled for aspheric surfaces. The conventional technique is usually based on analytic definition of optical surfaces; in the new method discretely defined aspheres are used, and the final design is attained point by point with an iterative algorithm. Aspheric Refractive Correcti on of Irregular Astimatism 105 Fig. Aspherical definition: a lens that has a shape that is not completely round | Meaning, pronunciation, translations and examples 1. Provides exceptional vision all day, even in low light ComfortMoist Technology provides outstanding all-day comfort . What each of these optics have in common, regardless of being convex or concave, is that no single radius of curvature can be used to define their overall shape. Similar: rounded (curving and somewhat round in shape rather than jagged). We are looking for Content Writers (1-2 years experience) for our ed-tech startup based out of Gurgaon. 1. varying slightly from an exactly spherical shape [adj] Medical Definition of Aspheric. Each square carries a letter. as­pheri­con is setting standards in the pro­duc­tion of high-precision optics Mea­sure­ment of the aspheric lens High-end finishing for more precise surfaces Ap­pli­ca­tion examples of the aspheric lens Pro­duc­tion ca­pa­bil­i­ties Aspheric lenses made by as­pheri­con Choose optical elements from as­pheri­con and benefit from these ad­van­tages: Definition AC, unlike other aspheric lenses in the market, incorporates the ideal aspheric curvature for each soft lens power and thickness and compensates for aberrations caused by flexture on the eye. not entrirely spherical. An aspheric lens is designed with less curvature than its traditional counterpart. (countable) The degree to which something is aspherical noun (uncountable) The state of being aspherical noun (countable) The degree to which something is aspherical grammar asphericity ( countable and uncountable; plural asphericities) asphericity ( countable and uncountable, plural asphericities) Examples Add Stem A: The High Definition Aspheric lens is an excellent choice of lens for emerging presbyopes, because you can add the plus power and still provide an excellent distance vision. [G. a- priv. It is a lens design with an aspheric front surface implemented by the leading manufacturers in many of their contact lens products. The theory of the definition method and some calculation examples are put forward. + sphaira, sphere] Farlex Partner Medical Dictionary © Farlex 2012 Want to thank TFD for its existence? We are looking for Content Writers (1-2 years experience) for our ed-tech startup based out of Gurgaon. Intuitive definition of the optical zone. The invention can be used to obtain isoplanatic aspheric monofocal intraocular lenses in a viewing range of up to 25o (preferably up to 10o). (Definition AC .

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