Lens and images ;@ixrj0u
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Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens 9#P~cW?
have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens S-o )d
in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms "1^tVw|
images by bending the incoming light as it passes. Image formation can be understood by 9q$^x/z!
treating the incoming light as rays and using a simple geometric arguments. Like much of basic -ak. wwx\
physics, this approach isn’t completely correct but is a good approximation. Because of the kP [fhOpn
geometric nature of the approximation, one can analyze a lens with geometry. This sort of Y%
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approach is called ray tracing. In today’s lab, we will form images with lens and analyze the DoFe:+_U3
system with ray tracings and with equations.
