Gaussian Mirror...
From:
bemfarmer
6 Jan 2018 (11 of 23)
8768.11
In reply to
8768.10
From the geometry of the spherical mirror, note that the focal length is half the radius of curvature:
The angle of curvature is show in the link, as ...???
http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/mireq.html
- Brian
I'll have to study the math and drawing for a while... :-)
EDITED: 6 Jan 2018 by BEMFARMER