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: Diverging lenses



On Mon, 14 May 2001, SSHS KPHOX wrote:
PHYS-L@lists.nau.edu writes:
Other than vision correction, is there other common uses
for diverging lenses?

An achromatic objective in a telescope has one of each with different
compositions to minimize chromatic aberation.

The peep hole in my front door has one of those.

Galileo's original telescope used a diverging eyepiece.
Crawford