Lens and images #K\;)z(?
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Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens (``|5;T\
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens X!K:V~ WG
in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms I 8 Ls_$[
images by bending the incoming light as it passes. Image formation can be understood by Y |L]#
treating the incoming light as rays and using a simple geometric arguments. Like much of basic M7c53fz
physics, this approach isn’t completely correct but is a good approximation. Because of the $O, IXA
geometric nature of the approximation, one can analyze a lens with geometry. This sort of S< >u
approach is called ray tracing. In today’s lab, we will form images with lens and analyze the UB7C,:"
system with ray tracings and with equations.
