lecture_5 - gm wav-E-MJ; a- ‘ 1/3 1. Summary of the...

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Unformatted text preview: gm wav-E-MJ; a- ‘ 1/3 1. Summary of the formula for images formed by spherical mirrors 1/8 + 1/8” = 2/R =1/f S, and S’ are object and image distance? respectively. R and f are the radius of curvature and focal length of the mirror S is + if the object is in front of the mirror (real object) S is — if the object is in back of the mirror (Virtual object) (front and back are defined with respect to the light propagation direction) 8’ is + if the image is in front of the mirror (real image) 8’ is — if the image is in back of the mirror (Virtual image) R and f are + for concave mirror (the center of curvature C is in front of the mirror) R and f are — for convex mirror (the center of curvature is in back of the mirror) Special case, plane mirrors ? H .57 ' Magnification: M=+h’/h =~ S’/S / WW Mirrors form images by light reflectionl! W 2. Summary of the formula for image formed by spherical refraction surfaces Refraction surfaces form imagines by light transmission” nl/S + ng/S’ : (nz-n1)/R, Gaussian formula S is + if the object is in front of the surface (real object) S is e if the object is in back of the surface (Virtual object) (front and back are defined with respect to the light propagation direction) S” is + if the image is in back of the surface (real image) 8’ is e if the image is in front of the surface (virtual image) R is + if the center of curvature C is in back of the surface ‘ R is — if the center of curvature is in front of the surface f0 = n] R/(nz-nl) first focal length or object focal length fl : n2 R/(nz-nl) 2nd focal length or image focal length V/zzr/o 9; ,7 .. N N N W 7 ,, , , ,, ,3 ,,, DOUBLE CONVEX PLANO-CONVEX CONVEXO-CONCAVE MENISCUS CONVERGENG couvsnsma LENSES PLANO-CONCAVE MESEEAVfiONVEX a: R IN _ DIVERGING LENSES US VE G G P 1 _—M a ‘3 (53... . I. _ ... lzl' Li - cgijlhm I ..cADJ (—L ‘ r I I. f: 3 $34306” .; "z“__‘_'_'~f.....<-——-—~ «~— TQ: (2,-— __ HQLLCQ {‘9 My _ m : ~ f H +0 germ m Wmmfig: - gmfdcamefw "A‘TQ/‘féxwd‘c Sign Convention for Thin Lenses sis + if the object is in front of the lens. sis —- if the object is in back of the lens. 3’ is + if the image is in back of the lens. 3’ is -— if the image is in front of the lens. 31 and Pu; are + if the center of curvature is in back of the lens. H1 and RE are - if the center of curvature is in Front of the lens. ...
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This note was uploaded on 02/16/2009 for the course EE 320 taught by Professor Qim during the Fall '08 term at Pennsylvania State University, University Park.

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lecture_5 - gm wav-E-MJ; a- ‘ 1/3 1. Summary of the...

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