A Treatise on Optics |
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Page 9
... a cone whose axis is 4Q , and vertex the point q - equidistant with Q from the reflecting surface , and on the ... conical surfaces or shells of rays , as QRr , with a common vertex Q and com- mon axis QA . The rays of this conical ...
... a cone whose axis is 4Q , and vertex the point q - equidistant with Q from the reflecting surface , and on the ... conical surfaces or shells of rays , as QRr , with a common vertex Q and com- mon axis QA . The rays of this conical ...
Page 10
... conical surface with vertex q and axis Aq . Thus the reflected or refracted pencil will consist of a series of conical surfaces with a common axis , but dif- ferent vertices . The limiting position of the vertex q is the geometrical ...
... conical surface with vertex q and axis Aq . Thus the reflected or refracted pencil will consist of a series of conical surfaces with a common axis , but dif- ferent vertices . The limiting position of the vertex q is the geometrical ...
Page 11
... a cone whose axis is AQ , and vertex the point q - equidistant with Q from the reflecting surface , and on the ... conical surfaces or shells of rays , as QRr , with a common vertex Q and com- mon axis QA . The rays of this conical ...
... a cone whose axis is AQ , and vertex the point q - equidistant with Q from the reflecting surface , and on the ... conical surfaces or shells of rays , as QRr , with a common vertex Q and com- mon axis QA . The rays of this conical ...
Page 12
... conical surface with vertex q and axis Aq . Thus the reflected or refracted pencil will consist of a series of conical surfaces with a common axis , but dif- ferent vertices . The limiting position of the vertex q is the geometrical ...
... conical surface with vertex q and axis Aq . Thus the reflected or refracted pencil will consist of a series of conical surfaces with a common axis , but dif- ferent vertices . The limiting position of the vertex q is the geometrical ...
Page 31
... area is illuminated by a pencil of rays emanating from a point , the illumination at any point of the area ac cosine of angle of incidence ( distance from origin ) 2 Let QAB be a small conical pencil of light from an origin Q , ACB , a ...
... area is illuminated by a pencil of rays emanating from a point , the illumination at any point of the area ac cosine of angle of incidence ( distance from origin ) 2 Let QAB be a small conical pencil of light from an origin Q , ACB , a ...
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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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