Found inside – Page 218Actually, correcting chromatic aberration would elevate the maximum values of ... The benefit of correcting monochromatic aberrations, from the average, ... Found inside – Page 416V. The Monochromatic Aberrations of the Eye It is not practicable to obtain an actually homocentric bundle of rays by refraction in an optical system except in certain quite singular cases , in which invariably the rays must emanate originally ... Found inside – Page 1144Aberrations • A simple theory of image formation developed for mirrors and ... Monochromatic Aberrations Monochromatic aberration is of many types — (a) ... Found inside – Page 122can represent monochromatic aberration of optical system. The order number of Zernike polynomials n and the angular frequency of polynomials m corresponding ... Found inside – Page 93is not in the plane of the lens , the lateral chromatic aberration can not be ... MONOCHROMATIC ABERRATIONS OF A SINGLE THIN LENS The two preceding ... Found inside – Page 109The xenon source used here with a Wratten 25 filter is not strictly monochromatic and this may introduce a certain degree of monochromatic aberration not present with the laser source . Based on the data presented by Wald and Griffin ( 1947 ) ... Found inside – Page 763.7.1 The monochromatic aberrations The Seidel aberrations correspond to an expansion of the wavefront error in terms of Zernike polynomials, which will not ... Found inside – Page 93MONOCHROMATIC ABERRATIONS OF A SINGLE THIN LENS The two preceding aberrations arise because of the heterochromatic character of the incident bundle and the ... Found inside – Page 200The pupil function includes the diffraction, the achromatic aberration (Porter et al., 2001), ... (e) Optical aberrations; monochromatic aberrations ... Found inside – Page 33The monochromatic aberrations of the complete eye, considered as one single imaging system, can be measured using a large variety of wavefront sensing ... Found inside – Page 35Discuss spherical aberration in detail and how can this defect be minimised ? ( Meerut 2003 , 02S , 02 , 018 , 01 , 1995S ) Monochromatic aberration : If ... Theoretically, this would increase spherical aberration leading to image blur. However, GP lenses are known for providing better image quality than SCLs. We believe that this is due to a reduction in overall aberrations with the GP lenses. Found insideIt is possible to overcome the eye's monochromatic aberrations with AO, ... The monochromatic aberration of the eye is measured with a wavefront sensor. Found inside – Page 31Curve A (blue) represents the MTF of an aberration-free optical system and curve ... Theoretically, correcting both chromatic and monochromatic aberrations ... Found inside – Page 9A chromatic aberration, on the other hand, is a function of multiple wavelengths. ... Common forms of monochromatic aberrations include spherical, coma, ... Found inside – Page 55In other words, aberration of light occurs for even the monochromatic ... These types of aberration are then called as monochromatic aberrations of images. Found inside – Page 17Aberration can thus be defined as an imperfection in image formation by an ... Monochromatic aberrations include spherical aberration, coma aberration, ... Found inside – Page 8These include chromatic aberration and the monochromatic aberrations of spherical aberration, coma, oblique astigmatism, curvature of image, and distortion. Found inside – Page 147Monochromatic Aberrations Spherical Aberration This axial aberration is generated by non-spherical wavefronts produced by the objective itself or by ... Found inside – Page 1-42Using the upgraded system, Yoon andWilliams showed a twofold increase in the eye'swhite light contrast sensitivity when monochromatic aberration was ... Found inside – Page 8Correcting the Eye's Monochromatic Aberration It is possible to overcome the eye's monochromatic aberrations with AO, a two-step process in which the eye's ... Found insideMost aberrations are due to imperfections in lenses and are usually categorized as either monochromatic or chromatic. Up to this point in Section 1.2, ... Found inside – Page 24MONOCHROMATIC ABERRATIONS . The important monochromatic aberrations are five in number . It is not possible to eliminate them all in any one system and they ... Found inside – Page 744.4.1.2 Lateral image shift — jwuņr cos 0 = jwun y Since this aberration ... 4.4.2 The five monochromatic third - order ( Seidel ) aberrations In this ... Found inside – Page 203In other words , an aberration is any failure of a mirror or a lens to behave ... Aberrations are divided broadly into two categories - monochromatic ... Found insideChromatic and Monochromatic Optical Aberrations Optical systems are ... Paraxial optics does not take into account aberration; it treats light as a ray, ... Found inside – Page 17These aberrations do not depend on the wavelength of the light and are termed as monochromatic aberrations. When the illumination is not monochromatic, ... Found inside – Page 31Curve A (blue) represents the MTF ofan aberration-free optical system and curve B ... Theoretically, correcting both chromatic and monochromatic aberrations ... Found inside – Page 38Longitudinal chromatic aberration can be corrected ... In practice, rather than eliminating monochromatic aberrations, this approach has so far only been ... Found inside – Page 73121.6 MONOCHROMATIC ABERRATION Monochromatic aberration takes place even when the ... Various types of monochromatic aberrations are (i) Spherical aberration ... Found inside – Page 544Topic on Physics • Aberrations in lenses : The inability of a lens to form the ... Monochromatic Aberration : It is divided into five sub-classes — (a) ... Found inside – Page 694.2.2 Monochromatic Aberration For monochromatic light, due to single wavelength or no variation of refractive index, chromatic aberration can be reduced ... Found inside – Page 169Primarily, monochromatic aberrations arise due to the participation of both paraxial and non-paraxial rays in image formation. Found inside – Page 101We will look at these aberration types in the next two sections and their ... 5.1 Monochromatic aberrations The mathematical theory of aberrations, ... Found inside – Page 193The answer brings out the essential difference between the chromatic aberrations and the monochromatic aberrations ; it is that adding more components ... Found inside – Page 2aberration , chromatic aberration , chromatic and aberration , monochromatic . aberration , chromatic The refractive index of a material is dependent on ... Found inside – Page 285MONOCHROMATIC ABERRATIONS 20.1 INTRODUCTION In paraxial optics pencils of rays from each point in the object plane converge on a conjugate point in the ... Found insideThe monochromatic aberrations include spherical aberration, astigmatism, coma, field curvature and distortion. In addition there are also chromatic ... Found inside – Page 3-143.8 ABERRATIONS The defects in lens system which leads to altered image formation are ... There are five commonly found types of monochromatic aberration ... Found inside – Page 4359.1 Image resolution 435 9.1.1 Monochromatic aberrations 435 9.1.2 Chromatic aberrations ... The main components of monochromatic aberration are as follows. Found inside – Page 179Aberrations are classified as monochromatic and chromatic aberrations. ... The aberration discussed in this chapter is monochromatic aberration. 3.1. Found inside – Page 173Chromatic aberration a mirror or a lens to behave precisely according to the simple ... Aberrations are divided broadly into two categories- monochromatic ... Found inside – Page 3-60Monochromatic Aberrations The inability of a lens to form the white point image of a white • Spherical Aberration point object is called aberration . Found inside – Page 44Monochromatic aberrations include spherical aberration, coma, oblique astigmatism, curvature of field and distortion. i. Spherical aberration is shape ... Found inside – Page 141The term " aberration ” is older than “ astigmatism , ” and although Donders would include all the monochromatic aberration of the eye under astigmatism , I know of no good reason for excluding the older term from Ophthalmology , when it may ... Found inside – Page 24MONOCHROMATIC ABERRATIONS . The important monochromatic aberrations are five in number . It is not possible to eliminate them all in any one system and they ... Found inside – Page 1007.7 ABERRATIONS The deviation of light rays from the perfect image ... 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