Lens and images ) ]73S@P(=
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Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens L/BHexOB
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens HL@TcfOe~
in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms cv= \g Z
images by bending the incoming light as it passes. Image formation can be understood by ?9p$XG
treating the incoming light as rays and using a simple geometric arguments. Like much of basic Mq@}snp"S
physics, this approach isn’t completely correct but is a good approximation. Because of the _
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geometric nature of the approximation, one can analyze a lens with geometry. This sort of ZW>o5x__b
approach is called ray tracing. In today’s lab, we will form images with lens and analyze the SZ/(\kQ6
system with ray tracings and with equations.
