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DIACAUSTIQUE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-08-02

English

Subject field(s)
  • Optics
DEF

Denoting or pertaining to the caustic curve formed by refracted rays, as opposed to catacaustic

OBS

Caustic curves: When light reflects off a curve the the envelope of the reflected rays is a caustic by reflection or a catacaustic. When light is refracted by a curve then the envelope of the refrected rays is a caustic by refraction or a diacaustic.

French

Domaine(s)
  • Optique
DEF

Relatif à l’enveloppe des rayons réfractés.

Spanish

Save record 1

Record 2 2004-04-05

English

Subject field(s)
  • Optics
  • Mathematics
DEF

A curve or surface which is tangent to the rays of an initially parallel beam after reflection or refraction in an optical system.

CONT

Neighbouring rays emanating from the same object point and passing through an optical system will not pass through the same image point but, owing to aberration, will intersect at different points. The totality of these point images lies on a surface known as a caustic.

French

Domaine(s)
  • Optique
  • Mathématiques
DEF

Lieu d’intersections des rayons réfléchis(catacaustique) ou réfractés(diacaustique). La caustique est une surface tangente aux rayons d’un faisceau issu d’un même point-source et ayant traversé(ou ayant été réfléchis par) un instrument d’optique(miroir, etc.) imparfait.

PHR

Ligne, surface, courbe caustique.

Spanish

Save record 2

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