Lenses and Systems of Lenses |
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Page 2
... equivalent to neglecting aberration . 2. Let us consider a number of spherical surfaces , all of which have their centres of curvature upon a certain straight line . This straight line we may call the axis of the system . If a system of ...
... equivalent to neglecting aberration . 2. Let us consider a number of spherical surfaces , all of which have their centres of curvature upon a certain straight line . This straight line we may call the axis of the system . If a system of ...
Page 48
... lens , it receives a certain deviation . A thin lens , which , when placed coaxally with the lens , would produce the same deviation in the same ray , is said to be equivalent to the given lens . It is called , briefly , the Equivalent Lens ...
... lens , it receives a certain deviation . A thin lens , which , when placed coaxally with the lens , would produce the same deviation in the same ray , is said to be equivalent to the given lens . It is called , briefly , the Equivalent Lens ...
Page 49
... at P ' ; therefore total deviation = + & + ho ( 1 + pt ) μ - μ 18 На ho ( 1 + pt ) + Мо μo h = Но { o ( 1 + pt ) + p } Ah Mo E 81. The focal length of the equivalent Lens . In REFRACTION AT TWO SURFACES IN SUCCESSION . 49.
... at P ' ; therefore total deviation = + & + ho ( 1 + pt ) μ - μ 18 На ho ( 1 + pt ) + Мо μo h = Но { o ( 1 + pt ) + p } Ah Mo E 81. The focal length of the equivalent Lens . In REFRACTION AT TWO SURFACES IN SUCCESSION . 49.
Page 50
... lens produces a deviation = Ah Hence the absolute focal length of the thin lens which would produce the same deviation as a given thick lens , or , in other words , the absolute focal length of the equivalent lens , is given by the ...
... lens produces a deviation = Ah Hence the absolute focal length of the thin lens which would produce the same deviation as a given thick lens , or , in other words , the absolute focal length of the equivalent lens , is given by the ...
Page 64
... lens . We have now to determine the yet unknown constants B ' , a " , y ' , a ' . α . 107. The formula for the magnification , namely , m = y − av | 1 ; = B ' + a'u ' m must clearly be equivalent ; so that if in the former we were to ...
... lens . We have now to determine the yet unknown constants B ' , a " , y ' , a ' . α . 107. The formula for the magnification , namely , m = y − av | 1 ; = B ' + a'u ' m must clearly be equivalent ; so that if in the former we were to ...
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Common terms and phrases
2nd Edition 4th Edition absolute distances C. S. Calverley Carl Neumann centre of curvature Conic Sections conjugate planes conjugate points consider continued fraction convex lens denote deviation emergent ray English equations equivalent lens extreme media F and F F. A. Paley focal length Focal Plane formula Geometrical George Bell Grammar Greek h₂ Hence incident ray infinite distance J. W. Donaldson Latin luminous point M.A. 3rd Edition M.A. 5th Edition M.A. Crown 8vo M.A. Fcap magnification produced meet the axis Nodal Points P₁ P₂ parallel Ph.D point conjugate points Q Post 8vo Principal Plane Principal Points quantities R. C. Jebb rays which proceed reduced distance refracted ray refracting surface refractive indices respectively second surface straight line system of lenses system of surfaces t₁ telescope theorem thick lens V₁ vertex W. H. Besant μη μι Мо