The spectacle magnification of focal telescopes.
A generalized expression for spectacle magnification is derived and used to determine the magnification of focal telescopes used to correct ametropia and/or to view objects at finite distances. When applied to low-powered hand-held telescopes, the expression predicts a clinically negligible difference between spectacle and nominal magnification.
W F
WF
Long
G C
GC
Woo
D005139:Eyeglasses; D006801:Humans; D007909:Lenses; D008962:Models, Theoretical; D055095:Optics and Photonics; D012030:Refractive Errors / Q000503:physiopathology; D012160:Retina / Q000503:physiopathology