LENSES!
You don't actually
need a lens to form a real image, but you do need a lens to form
a bright real image.
(1/p) + (1/q) = (1/f).
Converging Lens Animation
Magnifying Glass!
Chromatic and Spherical
Aberrations of lenses!
Brewster's angle, tanθB
= n2/n1
METAMATERIALS
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