GeomPreReq - Department of Electrical and Computer Engineering Thinlensequations Textbooksections:Hecht5.2( AndrewKirk2010 Optics.1 Overview

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Department of Electrical and Computer Engineering ECSE 527 Optical Engineering Thin lens equations Pre requisite material Textbook sections: Hecht 5.2 (or most other basic optics texts) Andrew Kirk 2010 Optics.1
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Overview This material is provided to ensure that everyone has the me basic knowledge of thin lenses Most people will have same basic knowledge of thin lenses. Most people will have covered this in high school, CEGEP or freshman physics courses. In order to refresh your memory, a WebCT test has een created been created. Some of these slides have been left partially blank in order for you to complete them. The correct answers will be posted in a few days. If you have not seen this material before, or have forgotten it, please don’t hesitate to approach the instructor or TA ith any questions that you have ©AGK 2010 ECSE 527 Optics.2 with any questions that you have.
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Learning outcomes After completing this section you should be able to: •R e c o g n i z e the lens maker’s equation • Apply the thin lens formulae to calculate object position d magnification for a single lens and magnification for a single lens •M a k e use of the sign conventions for lens curvature, object and image distances • Calculate image magnification e c a l l the difference between virtual and real images ©AGK 2010 ECSE 527 Optics.3
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Outline •T h i n lenses and the lens maker’s formula • Definition of focal length • Signs conventions ft i • Image formation • Graphical ray tracing agnification • Magnification ©AGK 2010 ECSE 527 Optics.4
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Thin lenses •S i m p l e lens: – Single element with two surfaces –A t least one surface is curved –L e n s thickness is small compared to focal length •O t h e r types: hick lenses Thick lenses – Compound lenses fl f th ll t i f th ht i t i f Here are some formulae for the calculation of the characteristics of thin lenses and their imaging properties. We will be deriving these in class as part of our investigation of geometrical optics. ©AGK 2010 ECSE 527 Optics.5
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Lens maker’s formula •F o r a thin lens in air, object and image distance are related to the radii of curvature of the surfaces is is the ns maker’s formula R R • This is the lens maker s formula n l is the refractive index of the lens 2 1 s o s i Lens maker’s formula: ©AGK 2010 ECSE 527 Optics.6
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This note was uploaded on 09/28/2010 for the course ECSE ECSE 527 taught by Professor Kirk during the Winter '10 term at McGill.

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GeomPreReq - Department of Electrical and Computer Engineering Thinlensequations Textbooksections:Hecht5.2( AndrewKirk2010 Optics.1 Overview

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