A Treatise on Optics |
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Page viii
... rays incident upon a sphere of water and emergent after one internal reflexion , 260 , 261 ; explanation of the Primary Rainbow , 262 ; the caustic after two internal reflexions within a sphere of water , 264-266 ; the Second Rainbow ...
... rays incident upon a sphere of water and emergent after one internal reflexion , 260 , 261 ; explanation of the Primary Rainbow , 262 ; the caustic after two internal reflexions within a sphere of water , 264-266 ; the Second Rainbow ...
Page 3
... rays ; if the rays produced in direction of propagation meet in a point ... incident on the surface of a medium different from that in which it is ... incident is translucent ) a third portion enters this new me- dium according to another ...
... rays ; if the rays produced in direction of propagation meet in a point ... incident on the surface of a medium different from that in which it is ... incident is translucent ) a third portion enters this new me- dium according to another ...
Page 4
... ray QA be incident at A on the surface of a medium ( reflecting or refracting or both ) : NAN ' the normal to the surface at A ; AQ ' , AQ " the re- flected and refracted rays respec- tively ; then will the lines QA , Q'A , QUA , NAN ...
... ray QA be incident at A on the surface of a medium ( reflecting or refracting or both ) : NAN ' the normal to the surface at A ; AQ ' , AQ " the re- flected and refracted rays respec- tively ; then will the lines QA , Q'A , QUA , NAN ...
Page 5
... rays whose axis QA is incident directly ( Art . 6 ) at A on a plane or spherical reflecting or refracting surface . Then Q4 is the axis of the reflected or refracted pencil . Let QR be any ray incident at R whose direction after re- R t ...
... rays whose axis QA is incident directly ( Art . 6 ) at A on a plane or spherical reflecting or refracting surface . Then Q4 is the axis of the reflected or refracted pencil . Let QR be any ray incident at R whose direction after re- R t ...
Page 6
... rays will consist of parallel rays after reflexion at a plane surface . Let QR , Q'R ' be any two rays of a pencil of parallel rays incident on a plane reflecting surface at the points R , R ' . Let RS be the di- rection of the ray QR ...
... rays will consist of parallel rays after reflexion at a plane surface . Let QR , Q'R ' be any two rays of a pencil of parallel rays incident on a plane reflecting surface at the points R , R ' . Let RS be the di- rection of the ray QR ...
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Common terms and phrases
aberration achromatism angle of incidence axis QA bright centre circle of least cloth coincides colours concave converge convex lens cos² Crown 8vo cuts the axis determine deviation direct pencil distance emergent equation excentrical eye-glass eye-piece Fcap fixed lines focal length geometrical focus Hence illumination image formed incident directly incident pencil index of refraction intersection lenses luminous point magnifying power medium mirror object object-glass parallel rays passes pencil of light pencil of parallel pencil of rays pencil whose axis perpendicular plane surface point of incidence position primary plane principal focus principal plane prism radii radius rays incident reflected or refracted reflected pencil reflexion or refraction refracted rays refracting angle refracting surface refractive index retina shew small oblique pencil small pencil spectrum sphere spherical reflector spherical surface supposed telescope thin lens v₁ v₂ αμ аф
Popular passages
Page 305 - Eumenides. The Greek Text with English Notes, and an Introduction, containing an Analysis of Miiller's Dissertations.