Lens and images D (MolsKc?
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Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens \\F@_nB,b
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens 7/ "g}
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in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms ,cR=W|6cQm
images by bending the incoming light as it passes. Image formation can be understood by hhTM-D1Ehs
treating the incoming light as rays and using a simple geometric arguments. Like much of basic ZiBTe,;
physics, this approach isn’t completely correct but is a good approximation. Because of the Z|YiYQl[)
geometric nature of the approximation, one can analyze a lens with geometry. This sort of >Lh+(M; +F
approach is called ray tracing. In today’s lab, we will form images with lens and analyze the : QK )Ym
system with ray tracings and with equations.
