Lens and images
3Q,p, ]ed7Q3lq Introduction: Along with mirrors, lens complete the set of simple optical elements. Lens
9gZS)MZ have been used for hundreds of years. Galileo constructed the first telescope from a pair of lens
.:(gg in 1609 and used it to discover, among other things, several of Jupiter’s moons. A lens forms
{@Z*.G^ images by bending the incoming light as it passes. Image formation can be understood by
5UQ[vHMqI treating the incoming light as rays and using a simple geometric arguments. Like much of basic
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