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Unformatted text preview: General Questions Name ____________________ (3,5,3,3,6,9,8,6,3) (Please Print) Thin Lens (18) Thick Lens (20) Critical Angle (16) E C E 4500 Second Examination April 2, 2008 Rules for exam: 1. The time allowed is 60 minutes. The test will start at 9:00am and end at 10:00am. 2. Answer all questions. The value of each question is given in parentheses above. There are a total of 100 points possible. 3. All work must be shown for full credit. 4. Put your final answers in the locations specified. 5. You may use six new single-sided 8 1/2&quot; x 11&quot; information sheets that you have prepared in your own handwriting. Your information sheets may not include photocopied material or typed material. You may also use the six single-sided information sheets that you prepared for the first examination. 6. Some physical constants are given below. 7. You may use one &quot;book of math tables&quot; or calculus textbook. 8. You may use a &quot;pocket calculator&quot; that can be put in a normal-size pocket and requires no external electrical power. Graphing calculators and programmable calculators are acceptable. You may not use portable, hand-held, lap-top, or notebook computers or wireless or network connections. 9. You may not use any reference materials other than those listed above. Therefore, you may not use the class notes, any textbooks, homework problems, reprints of papers, journals, prayer books, etc. 10. There is to be no sharing of anything. 11. If excess information is given in a question, ignore the unneeded information. 12. If too little information is given in a question, assume the information needed and clearly note this with your work. 13. Any changes to the examination will be written on the board. Check the board periodically during the examination. 14. Any acts of dishonesty will be referred to the Dean of Students without prior discussion. The official written Institute procedures on academic honesty (entitled &quot;Maintaining Academic Honesty&quot; and available from the Dean of Students Office) will be followed in all cases. 15. Have a happy exam! h = 6.6260755 10-34 joule-sec c = 2.99792458 10 8 meter / sec e = 1.6021773349 10-19 coul k = 1.38065812 10-23 joule / K General Optical Engineering Questions 1. A laser writing system is used to produce high-resolution graphics. A photo-sensitive plate at the focus of the system is mechanically moved to trace out the desired graphics. The laser writing system consists of a collimated laser beam focused by a converging lens down to a small spot size. The laser beam propagates parallel to the axis of the lens. The performance of this optical system is most affected by which optical aberration? Circle the one best answer. a) Spherical aberration b) Coma c) Astigmatism d) Distortion e) Curvature of field f) Transverse chromatic aberration g) Longitudinal chromatic aberration h) None of the above 2a. A hemispherical solid immersion lens of radius R and refractive index n 1 is pictured below. Such a lens is used for reading compact disks (CDs). It is surrounded by a re-below....
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This note was uploaded on 04/29/2008 for the course ECE 4500 taught by Professor Gaylord during the Spring '08 term at Georgia Institute of Technology.
- Spring '08