Lenses and Systems of Lenses, Treated After the Manner of Gauss |
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Page 3
... object glass . 31 ... 4. If now a ray of light proceed from a luminous point L , and cross the successive surfaces at the points P1 , P P1 .P , its course will be bent at each of these points , but in consequence of our hypothesis ...
... object glass . 31 ... 4. If now a ray of light proceed from a luminous point L , and cross the successive surfaces at the points P1 , P P1 .P , its course will be bent at each of these points , but in consequence of our hypothesis ...
Page 24
... object of finite size and definite shape , the points Q ' will form an image exactly similar in shape to the original object formed by the points Q. The size of the image will not , however , be the same as that of the object . It is ...
... object of finite size and definite shape , the points Q ' will form an image exactly similar in shape to the original object formed by the points Q. The size of the image will not , however , be the same as that of the object . It is ...
Page 25
... object is called the magnification , or the magnifying power of the surface . 36. To find an expression for the magnification caused by refraction at a surface . Let be a point on the boundary of the object , then the conjugate point Q ...
... object is called the magnification , or the magnifying power of the surface . 36. To find an expression for the magnification caused by refraction at a surface . Let be a point on the boundary of the object , then the conjugate point Q ...
Page 36
... object be situated in a plane perpendicular to the axis , its image formed by a lens will also be in a plane perpendicular to the axis . Also , if m , be the magnification produced by 36 LENSES AND SYSTEMS OF LENSES .
... object be situated in a plane perpendicular to the axis , its image formed by a lens will also be in a plane perpendicular to the axis . Also , if m , be the magnification produced by 36 LENSES AND SYSTEMS OF LENSES .
Page 39
... object lie in a plane through either of them perpendicular to the axis , an image of exactly the same size as the object will be produced on a corresponding plane through the other point . 62. These two points H and H ' are of the very ...
... object lie in a plane through either of them perpendicular to the axis , an image of exactly the same size as the object will be produced on a corresponding plane through the other point . 62. These two points H and H ' are of the very ...
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Common terms and phrases
A₁ absolute distances Carl Neumann centre of curvature conjugate foci conjugate planes conjugate points Consequently consider constants continued fraction convergent convex lens denominator denote determine the positions deviation equations equivalent lens extreme media F and F Focal Plane formula given H and H Hence incident ray infinite distance last media lens-system luminous point m₁ magnification produced meet the axis micrometer Nodal Points number of points number of surfaces object P₁ P₂ pair of conjugate parallel plane perpendicular point conjugate point of concurrence point Q preceding article Principal Foci Principal Planes Principal Points proved quantities radii rays which proceed reduced distance refracted ray refracting surface refractive indices relation second surface similar triangles straight line suppose system of lenses system of surfaces t₁ t₂ tangent plane telescope theorem thick lens thin lens V₁ vertex μη μι Мо
Popular passages
Page 69 - The position of the point P' conjugate to a given point P may now be determined by a geometrical construction. Let F, F' be the focal points, H, H' the principal points. If we can trace two rays emerging from P after refraction by the lens, these will meet in the required point P. For one of these rays choose the ray PR parallel to the axis, meeting the...
Page 30 - Two such planes are said to be conjugate to one another with respect to the lens, and are called briefly Conjugate Planes.