Lenses

=Lenses= Laws of refraction in thin converging lens

Laws of refraction in thin diverging lenses
 * Any incident ray traveling parallel to the principal axis of a converging lens will refract through the lens and travel through the focal point on the opposite side of the lens.
 * Any incident ray traveling through the focal point on the way to the lens will refract through the lens and travel parallel to the principal axis.
 * An incident ray that passes through the center of the lens will in affect continue in the same direction that it had when it entered the lens.
 * Any incident ray traveling parallel to the principal axis of a diverging lens will refract through the lens and travel in line with the focal point (i.e., in a direction such that its extension will pass through the focal point).
 * Any incident ray traveling towards the focal point on the way to the lens will refract through the lens and travel parallel to the principal axis.
 * An incident ray that passes through the center of the lens will in affect continue in the same direction that it had when it entered the lens.

Ray Diagrams Youtube

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Links
 * Lenses notes
 * Diffraction and polarization
 * Dispersion and line spectra
 * Ray diagrams
 * Ray diagrams converging lenses
 * Ray diagrams diverging lenses