A Treatise on Optics |
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Page v
... reflected at a spherical surface , 21-25 ; Geometrical and visible image , 26 ; Discussion of a pencil directly refracted at a spherical surface , 27—31 ; Illustrations , —successive reflexions at parallel mirrors and inclined mirrors ...
... reflected at a spherical surface , 21-25 ; Geometrical and visible image , 26 ; Discussion of a pencil directly refracted at a spherical surface , 27—31 ; Illustrations , —successive reflexions at parallel mirrors and inclined mirrors ...
Page vi
... reflected at a plane surface , 60 ; Formation of focal lines by an oblique pencil , -Def . of Primary and Secondary focal line , -circle of least con- fusion , 62-64 ; Illustration of geometrical and visible image , 65 ; Posi- tion of ...
... reflected at a plane surface , 60 ; Formation of focal lines by an oblique pencil , -Def . of Primary and Secondary focal line , -circle of least con- fusion , 62-64 ; Illustration of geometrical and visible image , 65 ; Posi- tion of ...
Page vii
... reflected or refracted at two or more surfaces in any manner , 126 , 127 . PAGE CHAPTER VII . • Spherical aberration of lenses ; -Excentrical pencils 114 Aberration of a direct pencil , 129 ; form of a lens to produce minimum aberration ...
... reflected or refracted at two or more surfaces in any manner , 126 , 127 . PAGE CHAPTER VII . • Spherical aberration of lenses ; -Excentrical pencils 114 Aberration of a direct pencil , 129 ; form of a lens to produce minimum aberration ...
Page 2
... reflected ; and we shall treat such rays as mathe- matical lines . In a uniform medium , it will be assumed that the course of a ray of light is a straight line ; this law is shewn by experiment to be true in general . There are certain ...
... reflected ; and we shall treat such rays as mathe- matical lines . In a uniform medium , it will be assumed that the course of a ray of light is a straight line ; this law is shewn by experiment to be true in general . There are certain ...
Page 3
... reflected and refracted rays where both exist , may be considered separately . 8. Law of reflexion . When a ray is reflected at the surface of a medium , ( i ) The incident and reflected rays lie in one and the same plane with the ...
... reflected and refracted rays where both exist , may be considered separately . 8. Law of reflexion . When a ray is reflected at the surface of a medium , ( i ) The incident and reflected rays lie in one and the same plane with the ...
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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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