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Lenses — focusing by the thin-lens equation
optics
A lens focuses by 1/f = 1/do + 1/di (image at 15 cm for the sealed example); magnification is the ratio of distances. Every camera, eye and telescope is this geometry of rays. Rests on Maxwell.
source
Narrow Highway — optics
card id
card_opt_lenses
address
WIT.codex.FCT/lenses-focusing-by-the-thin-lens-equation/REF.WITNESSED@narrow-highway
adjoining cards
- part of → Optics — how light bends, focuses, and slows — a pillar of optics (Lenses)
- connects at → Maxwell's equations — the first unification — ray optics is the short-wavelength limit of Maxwell's light
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