Decollimation

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Decollimation is any mechanism or process which causes a beam with the minimum possible ray divergence to diverge or converge from parallelism.

Decollimation may be deliberate for systems reasons, or may be caused by many factors, such as refractive index inhomogeneities, occlusions, scattering, deflection, diffraction, reflection, and refraction.

Decollimation occurs in applications such as radio, radar, sonar, and optical communications.

[edit] See also

• Collimated light