Polski: Schemat przedstawia załamanie światła w krysztale dwójłomnym. Zjawisko wyjaśnione jest przy pomocy zasady Huygensa. Widać załamanie promienia padającego normalnie na kryształ.
Oznaczenia użyte w schematach:
Najcieńsza linia wskazuje kierunek osi optycznej kryształu.
Linie z kreskami i/lub kropkami do promienie świetlne. Kropki i kreski symbolizują kierunek polaryzacji fali elektromagnetycznej.
kropki to polaryzacja prostopadła do powierzchni rysunku
kreski to polaryzacja równoległa.
e - promień nadzwyczajny.
o - promień zwyczajny.
Linie przerywane symbolizują czoło fali.
Okręgi i elipsy to przykładowe fale cząstkowe, narysowane aby ukazać działanie zasady Huygensa.
English: Scheme shows refraction in birefringent material. Fenomenon is explained using Huygens` rule. It`s shown as ray sriking perpendicular to the surface of material, changes it`s direct
ion (do not follow Snell`s law).
Marks used in scheme:
Thinest line shows th direction od optical axis
lines with dots and/or strokes are light rays. Dots and strokes are symbols of direction of polarization
dots - polarization perpendicular to plane of image
stokes - polarization parel to plane of image
e - ekstraordinary ray
o - ordinary ray
inerruptes line shows a wavefront
circles and elipses are some of partial waves, they are to show how Huygens` rule works here.
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{{Information |Description={{pl|Schemat przedstawia załamanie światła w krysztale dwójłomnym. Zjawisko wyjaśnione jest przy pomocy zasady Huygensa. Widać załamanie promienia padającego normalnie na kryształ. Oznaczenia użyte w schematach: * N