A Treatise on Optics |
From inside the book
Results 1-5 of 100
Page v
... pencil of light , incidence direct and oblique , 2-7 ; laws of reflexion and refraction , 8-10 ; foundation of such ... pencil directly reflected at a spherical surface , 21-25 ; Geometrical and visible image , 26 ; Discussion of a ...
... pencil of light , incidence direct and oblique , 2-7 ; laws of reflexion and refraction , 8-10 ; foundation of such ... pencil directly reflected at a spherical surface , 21-25 ; Geometrical and visible image , 26 ; Discussion of a ...
Page vi
... pencil 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 ...
... pencil 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 ...
Page 2
... pencil of light . The form of a pencil , unless an exception be expressly mentioned , will be regarded as a right cone having the origin of light for the vertex , and when this origin is infinitely distant , this cone becomes a circular ...
... pencil of light . The form of a pencil , unless an exception be expressly mentioned , will be regarded as a right cone having the origin of light for the vertex , and when this origin is infinitely distant , this cone becomes a circular ...
Page 3
... pencil is divergent ; if the origin be infinitely distant , its limiting form is a pencil of parallel rays ; if the rays produced in direction of propagation meet in a point , the pencil is convergent . The degree of divergence or ...
... pencil is divergent ; if the origin be infinitely distant , its limiting form is a pencil of parallel rays ; if the rays produced in direction of propagation meet in a point , the pencil is convergent . The degree of divergence or ...
Page 6
... pencil of parallel 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 ...
... pencil of parallel 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 ...
Other editions - View all
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.