Lec-25 - Previous Lecture Refraction (Snells Law) Ray...

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Unformatted text preview: Previous Lecture Refraction (Snells Law) Ray tracing for lenses Lens Equation: 1 d o + 1 d i = 1 f p. Today Rainbows Lensmakers Equation Two lens systems (e.g., telescope) Aberrations p. Rainbows refraction total internal reflection dispersion p. Lensmakers Equation 1 f = ( n- 1) 1 R 1- 1 R 2 p. Lensmakers Equation 1 f = ( n- 1) 1 R 1- 1 R 2 Careful with the signs of the radii of curvature R 1 and R 2 ! p. Lensmakers Equation 1 f = ( n- 1) 1 R 1- 1 R 2 Careful with the signs of the radii of curvature R 1 and R 2 ! R is positive if the center of curvature C is on the same side as the outgoing light; otherwise R is negative. p. Types of Lenses Converging Lenses Diverging Lenses Meniscus Planoconvex Double convex Meniscus Planoconcave Double concave p. Two lens systems (I) The image made by the first lens is the object for the second lens....
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This note was uploaded on 02/29/2008 for the course PHYSICS 21 taught by Professor Hickman during the Spring '08 term at Lehigh University .

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Lec-25 - Previous Lecture Refraction (Snells Law) Ray...

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