OPTI 201R 10 L33 - 33-1 10.2 Chief and Marginal Rays...

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OPTI 201R Fall 2010 33-1 10.2 Chief and Marginal Rays Marginal Ray “MR” “The marginal ray begins at the axial object point and proceeds to the edge of the entrance pupil.” ! 2 2 2 entrance pupil entrance pupil Astop Astop exit pupil exit pupil CA y CA y CA y ! ! ! ! The MR lies in the meridional (y-z) plane. ! MR heights denoted as “ y ! MR angles denoted as “ u ! “The MR defines the pupil size and image location.” ! image location, yes! (the on-axis object point is conjugate to the on-axis image point) ! pupil size…….no. (‘chicken and egg’ problem….which one is defined first?) (location and size of the A stop is defined first…. . …..the location and size of the entrance pupil follows from that) ! Because the MR touches the edge of the entrance pupil, it also touches the edge of the A stop and the edge of the exit pupil. ! These 3 points are all conjugate to each other. ! Wherever the MR crosses the axis a real image is located.
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OPTI 201R Fall 2010 33-2 Chief Ray “CR” “The chief ray begins at the edge of the field of view and proceeds to the center of the entrance pupil.” ! 0
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This note was uploaded on 08/23/2010 for the course OPTICS 201R taught by Professor Staff during the Spring '10 term at University of Arizona- Tucson.

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OPTI 201R 10 L33 - 33-1 10.2 Chief and Marginal Rays...

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