A Treatise on Optics |
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Page v
... plane surface , 14-19 ; Discussion of the Geometrical focus and conjugate foci of a pencil directly reflected at a spherical surface , 21-25 ; Geometrical and visible image , 26 ; Discussion of a pencil directly refracted at a spherical ...
... plane surface , 14-19 ; Discussion of the Geometrical focus and conjugate foci of a pencil directly reflected at a spherical surface , 21-25 ; Geometrical and visible image , 26 ; Discussion of a pencil directly refracted at a spherical ...
Page vi
... plane or spherical surface , 67-69 ; Position and dimensions of the focal lines and circle of least confusion , 70 ; Illustrations , -caustic after reflexion at a circle in certain cases , 71 , 72 ; caustic after refraction at a plane ...
... plane or spherical surface , 67-69 ; Position and dimensions of the focal lines and circle of least confusion , 70 ; Illustrations , -caustic after reflexion at a circle in certain cases , 71 , 72 ; caustic after refraction at a plane ...
Page 3
... plane with the normal to the surface at the point of incidence , and on opposite sides of the normal . ( ii ) The angles which the incident and reflected rays make with the normal to the surface at the point of incidence are equal . 9 ...
... plane with the normal to the surface at the point of incidence , and on opposite sides of the normal . ( ii ) The angles which the incident and reflected rays make with the normal to the surface at the point of incidence are equal . 9 ...
Page 6
... plane QAR . Then as Ris taxe . Learer and nearer to A , the point q will approach some point Fin the axis , as its ... plane surface . Let QR , Q'R ' be any two rays of a pencil of parallel rays incident on a plane reflecting surface at ...
... plane QAR . Then as Ris taxe . Learer and nearer to A , the point q will approach some point Fin the axis , as its ... plane surface . Let QR , Q'R ' be any two rays of a pencil of parallel rays incident on a plane reflecting surface at ...
Page 7
... planes QRN , Q'R'N ' do not coincide , let R'S ' be the intersection of the plane SRR ' with the plane Q'R'N ' . Now QR RN are parallel to SQ'R ' ; R'N ' .. the plane QRS is parallel to the plane Q'R'S ' , ( Euc . XI . 15 ) , st . line ...
... planes QRN , Q'R'N ' do not coincide , let R'S ' be the intersection of the plane SRR ' with the plane Q'R'N ' . Now QR RN are parallel to SQ'R ' ; R'N ' .. the plane QRS is parallel to the plane Q'R'S ' , ( Euc . XI . 15 ) , st . line ...
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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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