Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: Lens and light questions



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.