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Re: Lens and light questions
From
: LUDWIK KOWALSKI <
KOWALSKIL@alpha.montclair.edu
>
Date
: Fri, 10 Oct 1997 18:10:13 -0400 (EDT)
By using the "lens makers equation" you are assuming that your lens is
"thin". You measure focal distances from the "center". To do better stop
using the equation and treat the system as two refracting surfaces.
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