Aberrations of Thin Lenses: An Elementary Treatment for Technicians and Students |
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Page 246
... foci q ' and q lie in relation to the far point sphere it is more suitable to specify their distances , for all field angles , either from the common point E ' ( exit pupil ) or from the common sphere which we may call the vertex sphere ...
... foci q ' and q lie in relation to the far point sphere it is more suitable to specify their distances , for all field angles , either from the common point E ' ( exit pupil ) or from the common sphere which we may call the vertex sphere ...
Page 283
... foci will be substantially the same as that already explained for spherical lenses except that it is necessary , in ... foci of this pencil are formed at qt and q ; ideally these foci should fall at MTT and MST on the * See § 9.9 ...
... foci will be substantially the same as that already explained for spherical lenses except that it is necessary , in ... foci of this pencil are formed at qt and q ; ideally these foci should fall at MTT and MST on the * See § 9.9 ...
Page 291
... foci qt T and as ; and the distances tas and s2s measured in the sagittal section along the emergent ray from Das to the foci ats and qs ( Fig . 9.6 ) . The object being distant , s1 = t1 = ∞ and for the refraction through the two ...
... foci qt T and as ; and the distances tas and s2s measured in the sagittal section along the emergent ray from Das to the foci ats and qs ( Fig . 9.6 ) . The object being distant , s1 = t1 = ∞ and for the refraction through the two ...
Contents
ASPHERIC SURFACES | 17 |
SPHERICAL SURFACE AND THIN LENS SPHERICAL | 36 |
PARAXIAL REGION FIRST ORDER THEORY | 83 |
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angle aperture apply assumed astigmatism axial axis becomes bending calculation called centre CHAPTER chromatism coma components computation conjugate cos² curvature curve determine diagram diameter direction distance distortion effect entrance equal equations example expressed extended eyepiece F₂ factor field flux focus front given gives glass ideal image illumination inch incident lenses light limited luminance lying magnification mean measured method normal object object point oblique obtain optical optical axis order theory paraxial passes path pencil placed plane position practical primary principal ray projection pupil quantity radius reference reflection refraction refractive index region relation represented respectively rotation sagittal separation shown shows single slope spherical aberration stop surface tangential thickness thin lens third order values varies zero zone