[ATM] Intentional astigmatism

[Kevin Whitefire <chaosopher23@yahoo.com>]

I'm wondering if it's possible to induce intentional
astigmatism in the focal plane, very weak astigmatism,
using a thin lens, that will compensate for my
eyesight.  Is this possible?

If it is, I see that it will have to be rotationally
variable and removable from the optical path for other
people and photography in order to work.

My astigmatism is rather minor, but annoying when I
look at either straight, parallel lines (sheet music)
or points of light (stars).  My eyeglasses have a
focal length of about 24 inches and vertical
astigmatism that gives a solar focus of about 3" tall.
 I'm far sighted with 20/25 and 20/30 without glasses.

Regards,
Kevin of Eastern Iowa
Seeker of the Darkness


		
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