A Treatise on Optics |
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Page v
... 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 ...
... 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
... surface and face , incidence centrical and excentrical - axis of a surface , 59 ; oblique pencil reflected at a plane surface , 60 ; Formation of focal lines by an oblique pencil , -Def . of Primary and Secondary focal line , -circle of ...
... surface and face , incidence centrical and excentrical - axis of a surface , 59 ; oblique pencil reflected at a plane surface , 60 ; Formation of focal lines by an oblique pencil , -Def . of Primary and Secondary focal line , -circle of ...
Page 2
... surface , in no direction perceptibly extended : and so by a luminous line we may understand such a surface per- ceptibly extended in one direction only . We shall regard them simply as a mathematical point and a mathematical line ...
... surface , in no direction perceptibly extended : and so by a luminous line we may understand such a surface per- ceptibly extended in one direction only . We shall regard them simply as a mathematical point and a mathematical line ...
Page 3
... surface at the point of incidence in other cases the incidence is called oblique . 7. When light is incident on the surface of a medium different from that in which it is proceeding , a portion of it is scattered or dispersed over the ...
... surface at the point of incidence in other cases the incidence is called oblique . 7. When light is incident on the surface of a medium different from that in which it is proceeding , a portion of it is scattered or dispersed over the ...
Page 4
... surface at the point of incidence , have a ratio depending only on the media be- tween which the refraction takes place , and the nature of the light . 10. Thus if a ray QA be incident at A on the surface of a medium ( reflecting or ...
... surface at the point of incidence , have a ratio depending only on the media be- tween which the refraction takes place , and the nature of the light . 10. Thus if a ray QA be incident at A on the surface of a medium ( reflecting or ...
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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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