A Treatise on Optics |
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Page ii
Stephen Parkinson. Cambridge : PRINTED BY C. J. CLAY , M. A. AT THE UNIVERSITY PRESS . PREFACE . THE present work may be regarded as a.
Stephen Parkinson. Cambridge : PRINTED BY C. J. CLAY , M. A. AT THE UNIVERSITY PRESS . PREFACE . THE present work may be regarded as a.
Page iii
Stephen Parkinson. PREFACE . THE present work may be regarded as a new edition of the Treatise on Optics by the Rev. W. N. Griffin , which being some time ago out of print , was very kindly and liberally placed at my disposal by the ...
Stephen Parkinson. PREFACE . THE present work may be regarded as a new edition of the Treatise on Optics by the Rev. W. N. Griffin , which being some time ago out of print , was very kindly and liberally placed at my disposal by the ...
Page vi
... regarded as a lens , — its focal length , 105 , 106 ; relative motion of conjugate foci in the case of a lens , 107 ; focal length of a lens determined practically , 108 ; centre of a lens , 109 ; focal centres of a lens , 110 ...
... regarded as a lens , — its focal length , 105 , 106 ; relative motion of conjugate foci in the case of a lens , 107 ; focal length of a lens determined practically , 108 ; centre of a lens , 109 ; focal centres of a lens , 110 ...
Page 2
... regarded as a right cone having the origin of light for the vertex , and when this origin is infinitely distant , this cone becomes a circular cylinder as its limiting form . The geometrical axis of the cone or cylinder is called the ...
... regarded as a right cone having the origin of light for the vertex , and when this origin is infinitely distant , this cone becomes a circular cylinder as its limiting form . The geometrical axis of the cone or cylinder is called the ...
Page 9
... regarded as composed of a series of conical surfaces or shells of rays , as QRr , with a common vertex Q and com- mon axis QA . The rays of this conical surface will all be reflected or refracted similarly with respect to QA , and ...
... regarded as composed of a series of conical surfaces or shells of rays , as QRr , with a common vertex Q and com- mon axis QA . The rays of this conical surface will all be reflected or refracted similarly with respect to QA , and ...
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Common terms and phrases
aberration achromatism angle of incidence axis QA bright centre circle of least coincides colours concave conical surfaces convex lens cos² Crown 8vo cuts the axis deviation diameter direct pencil distance emergent equation excentrical eye-glass eye-piece Fcap field of view fixed lines focal length geometrical focus Hence illumination image formed incident directly incident pencil index of refraction intersection lenses luminous point magnifying power medium object object-glass parallel rays passes pencil of parallel pencil of rays pencil whose axis perpendicular plane surface point of incidence point q position primary plane principal focus principal plane prism radius rays incident reflected or refracted reflected pencil reflexion or refraction refracted rays refracting angle refracting surface refractive index shew small oblique pencil small pencil spectrum sphere spherical reflector spherical surface subtends supposed telescope thin lens v₁ v₂ αμ
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