Lens and images G:]w
UC\
V*m@Rs!)2
Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens UoLvc~n7
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens )K4A-9p C
in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms BmR k|b
images by bending the incoming light as it passes. Image formation can be understood by \Ami -< T
treating the incoming light as rays and using a simple geometric arguments. Like much of basic i5>]$j1/
physics, this approach isn’t completely correct but is a good approximation. Because of the AC$:.KLI
geometric nature of the approximation, one can analyze a lens with geometry. This sort of @@,l0/
approach is called ray tracing. In today’s lab, we will form images with lens and analyze the ]0VjVU-
system with ray tracings and with equations.
