Lens and images IvLo&6swW
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Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens "^A4 !.
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens [qhQj\cK
in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms 2l43/aCq
images by bending the incoming light as it passes. Image formation can be understood by d
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treating the incoming light as rays and using a simple geometric arguments. Like much of basic @^Tof5?F?
physics, this approach isn’t completely correct but is a good approximation. Because of the !2d A8b
geometric nature of the approximation, one can analyze a lens with geometry. This sort of ZVo%ssVt
approach is called ray tracing. In today’s lab, we will form images with lens and analyze the zo*YPDEm"
system with ray tracings and with equations.
