Lens and images 3:T~$M `]
w@pJ 49
Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens 1)!2D?w
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens g)7@ EU 2
in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms zwk& 3
images by bending the incoming light as it passes. Image formation can be understood by WjOP2CVv|
treating the incoming light as rays and using a simple geometric arguments. Like much of basic ws B
physics, this approach isn’t completely correct but is a good approximation. Because of the s"R5'W\U
geometric nature of the approximation, one can analyze a lens with geometry. This sort of TjHt:%7.
approach is called ray tracing. In today’s lab, we will form images with lens and analyze the l+j
!CvtI
system with ray tracings and with equations.
