Lens and images YtQWArX,
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Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens F4{<;4N0
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens p$ <qT^]&
in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms 1 \kehCt
images by bending the incoming light as it passes. Image formation can be understood by z#/*LP#oY
treating the incoming light as rays and using a simple geometric arguments. Like much of basic |0mI3r
physics, this approach isn’t completely correct but is a good approximation. Because of the )T_ #X!
geometric nature of the approximation, one can analyze a lens with geometry. This sort of c,ek]dTj
approach is called ray tracing. In today’s lab, we will form images with lens and analyze the oPBjsQ
system with ray tracings and with equations.
