Lens and images |M~ON=
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Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens 9.+/~$Ht
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens ?.bnIwQe
in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms g!J0L7 i|
images by bending the incoming light as it passes. Image formation can be understood by P= 8>c'Q
treating the incoming light as rays and using a simple geometric arguments. Like much of basic NCS!:d:Ry
physics, this approach isn’t completely correct but is a good approximation. Because of the "^CXY3v
geometric nature of the approximation, one can analyze a lens with geometry. This sort of ]B4}eBt5)@
approach is called ray tracing. In today’s lab, we will form images with lens and analyze the x4K`]Fvhl
system with ray tracings and with equations.
