502 Homework 2010 Set 2

# 502 Homework 2010 Set 2 - OPTI-502 Optical Design and...

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OPTI-502 Optical Design and Instrumentation I John E. Greivenkamp Homework Set 2 Fall, 2009 Assigned: 8/31/10 Lecture 3 Due: 9/7/10 Lecture 5 2-1) You are given the task of designing a laser scanner. You will move the beam by tilting a mirror with a galvanometer as shown. The input laser beam is fixed. The distance from the mirror to the object is 25 cm. If the spot must scan at 100 cm/sec, how fast must we rotate the mirror? Assume small angles. Mirror v Scan Object Input Beam d θ /dt

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OPTI-502 Optical Design and Instrumentation I John E. Greivenkamp Homework Set 2 Fall, 2009 2-2) Sketch the tunnel diagrams for the following prisms: 2-3) For small angles, Snell’s law is approximated by n θ = n' θ '. a) For n = 1 and n' = 1.5, compare and graph the approximate and exact results for θ '. Also compute the % error. b) For what range of θ ’s is the approximation good to 0.1%, 1% and 10%? You can do this part by interpolation of your tabulated values. 2-4) We have a 100 mm focal length lens (the distance from the rear surface of the lens to the
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## This note was uploaded on 10/10/2010 for the course PHYSICS 203 taught by Professor Ibrahim during the Spring '10 term at Middle East Technical University.

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502 Homework 2010 Set 2 - OPTI-502 Optical Design and...

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