Re: [ATM] Determining the focal length of a negative meniscus lens.

["Vladimir Galogaza" <vladimir.galogaza@zg.htnet.hr>]

Thomas,


OK, this one has me stumped, how do I measure the focal length of a
negative meniscus lens? Richard mentioned using a biconvex lens of a
known FL to "pre-collimate" the light source, but I don't see how this
would work, unless I had a lens of the same FL to use as the one under
test.

Try this:

www.physics.wsu.edu/academics/labs/102Labs/Images(Thin%20Lenses)(8-12-02).ht
m
( watch and remowe posible URL wrap)
Exercise 2:  Determining the Focal Length of a Negative Lens

And:
http://www.siue.edu/~ahamad/Optics%20fall%202004/Problem%20set%202/P7.htm

and
http://www.olympusmicro.com/primer/java/lenses/diverginglenses/
for details and conventions in calculations


Regards Vladimir.







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