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!

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Chromatic and Spherical Aberrations of lenses!


Brewster's angle, tanθ_B = n₂/n₁

METAMATERIALS
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