Lens and images 1(ud(8?|
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Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens ud @7%%
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens /U1 jCLR'
in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms t&^cYPRfY'
images by bending the incoming light as it passes. Image formation can be understood by :
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treating the incoming light as rays and using a simple geometric arguments. Like much of basic A>OGU ^
physics, this approach isn’t completely correct but is a good approximation. Because of the HbUadPr
geometric nature of the approximation, one can analyze a lens with geometry. This sort of NW=tZV Q<X
approach is called ray tracing. In today’s lab, we will form images with lens and analyze the "p [FFg
system with ray tracings and with equations.
