A Treatise on Optics |
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Page 6
... perpendicular to the axis QA to meet Rq in t , it is sometimes convenient to distinguish Fq as the longi- tudinal aberration and Ft as the lateral aberration . 14. A pencil of parallel rays will consist of parallel rays after reflexion ...
... perpendicular to the axis QA to meet Rq in t , it is sometimes convenient to distinguish Fq as the longi- tudinal aberration and Ft as the lateral aberration . 14. A pencil of parallel rays will consist of parallel rays after reflexion ...
Page 7
... perpendicular to the surface at the points R , R ' , and let S'R ' be the intersection of the plane SRR ' with the plane Q'R'N ' ' ( if these planes be not coincident ) . Q'R ' QRY Now RNS are parallel to { R'N ' R'N ' N ' N .. the ...
... perpendicular to the surface at the points R , R ' , and let S'R ' be the intersection of the plane SRR ' with the plane Q'R'N ' ' ( if these planes be not coincident ) . Q'R ' QRY Now RNS are parallel to { R'N ' R'N ' N ' N .. the ...
Page 11
... perpendicular to the axis QA to meet Rq in t , it is sometimes convenient to distinguish Fq as the longi- tudinal aberration and Ft as the lateral aberration . 14. A pencil of parallel rays will consist of parallel rays after reflexion ...
... perpendicular to the axis QA to meet Rq in t , it is sometimes convenient to distinguish Fq as the longi- tudinal aberration and Ft as the lateral aberration . 14. A pencil of parallel rays will consist of parallel rays after reflexion ...
Page 11
... perpendicular to the surface at the points R , R ' , and let S'R ' be the intersection of the plane SRR ' with the plane Q'R'N ' ( if these planes be not coincident ) . QR ) Now are parallel to RNS ( Q'R ' R'N ' N ' N S ' R R ' .. the ...
... perpendicular to the surface at the points R , R ' , and let S'R ' be the intersection of the plane SRR ' with the plane Q'R'N ' ( if these planes be not coincident ) . QR ) Now are parallel to RNS ( Q'R ' R'N ' N ' N S ' R R ' .. the ...
Page 23
... perpendicular to the two mirrors A , B and produced indefinitely both ways . = Then taking AQ , AQ , Q , will be the geometrical focus or image of rays emanating from Q and reflected at the mirror A. The rays so reflected from A and ...
... perpendicular to the two mirrors A , B and produced indefinitely both ways . = Then taking AQ , AQ , Q , will be the geometrical focus or image of rays emanating from Q and reflected at the mirror A. The rays so reflected from A and ...
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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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