Asked by Any.help.REALLY.appreciated
Ok guys,
state the surface powers required to produce the following lenses with +5.75D front curves.
a) -0.50DS
b) +0.50DS
c) +1.75DS
d) -1.25DS
i'm not sure if it's as straight forward as calculating the difference, eg. a) +5.75 - -0.50 = +6.25.
Any help is seriously appreciated!
state the surface powers required to produce the following lenses with +5.75D front curves.
a) -0.50DS
b) +0.50DS
c) +1.75DS
d) -1.25DS
i'm not sure if it's as straight forward as calculating the difference, eg. a) +5.75 - -0.50 = +6.25.
Any help is seriously appreciated!