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The Government of Canada’s terminology and linguistic data bank.
ABERRATION LUMIERE [4 records]
Record 1 - internal organization data 2004-03-12
Record 1, English
Record 1, Subject field(s)
- Optics
Record 1, Main entry term, English
- chromatic aberration
1, record 1, English, chromatic%20aberration
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The lens aberration resulting from the normal increase in refractive index of all common materials toward the blue end of the spectrum. 2, record 1, English, - chromatic%20aberration
Record number: 1, Textual support number: 1 CONT
Chromatic aberration results from material dispersion. Because different colors of light refract by different amounts, an image point formed by light of one color does not coincide with the corresponding image point formed by light of a different color. This is not a geometrical aberration. 3, record 1, English, - chromatic%20aberration
Record 1, French
Record 1, Domaine(s)
- Optique
Record 1, Main entry term, French
- aberration chromatique
1, record 1, French, aberration%20chromatique
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Lorsque vous observez le passage de la lumière blanche à travers un prisme, vous pouvez remarquer qu'elle se décompose en différentes couleurs. La lumière blanche est en réalité un mélange de toutes les couleurs, celles de l'arc en ciel. Or une lentille simple se comporte localement comme un prisme et a donc tendance à séparer les couleurs. L'image n’ est alors nette que pour le bleu, que pour le vert ou que pour le rouge. C'est l'aberration chromatique. Afin de palier ce problème, qui rend donc les images floues, on adjoint plusieurs lentilles de nature différentes permettant ainsi de focaliser la plupart des couleurs en un même point. Si l'objectif possède deux lentilles, on parle de système achromatique et s’il en possède trois, de système apochromatique. 2, record 1, French, - aberration%20chromatique
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2002-11-29
Record 2, English
Record 2, Subject field(s)
- Radar, Radio Guidance and Goniometry
- Air Navigation Aids
Record 2, Main entry term, English
- aberration effect
1, record 2, English, aberration%20effect
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
This aberration formula determines the appearance of any relativistic scene. It transforms the light rays making up the image between frames, irrespective of their origin. Figure 6 illustrates the aberration effect on a star field seen by observer moving through its rest frame. 1, record 2, English, - aberration%20effect
Record 2, French
Record 2, Domaine(s)
- Radar, radioguidage et radiogoniométrie
- Aides à la navigation aérienne
Record 2, Main entry term, French
- effet d’aberration
1, record 2, French, effet%20d%26rsquo%3Baberration
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Les détails du calcul sont subtils car par exemple les changements de repère en relativité affectent les mesures d’angle et donc la direction de la lumière(c'est l'effet d’aberration) de sorte que la vitesse radiale n’ est pas la même dans un repère et dans l'autre. 1, record 2, French, - effet%20d%26rsquo%3Baberration
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1990-12-28
Record 3, English
Record 3, Subject field(s)
- Astronomy
Record 3, Main entry term, English
- aberration of light 1, record 3, English, aberration%20of%20light
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record 3, French
Record 3, Domaine(s)
- Astronomie
Record 3, Main entry term, French
- aberration de la lumière
1, record 3, French, aberration%20de%20la%20lumi%C3%A8re
feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Angle formé par la direction vraie d’un objet et sa direction apparente, lorsque l’observateur et l’objet sont en mouvement l’un par rapport à l’autre. 1, record 3, French, - aberration%20de%20la%20lumi%C3%A8re
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1990-12-28
Record 4, English
Record 4, Subject field(s)
- Astronomy
Record 4, Main entry term, English
- annual aberration 1, record 4, English, annual%20aberration
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Annual aberration results from the motion of the earth in its orbit round the sun. 2, record 4, English, - annual%20aberration
Record 4, French
Record 4, Domaine(s)
- Astronomie
Record 4, Main entry term, French
- aberration annuelle
1, record 4, French, aberration%20annuelle
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Changement apparent, de période annuelle, de la direction d’une étoile, dû à la vitesse de la Terre dans son mouvement de révolution autour du soleil. 2, record 4, French, - aberration%20annuelle
Record number: 4, Textual support number: 1 CONT
On distingue donc l'aberration "diurne" et l'aberration "annuelle". L'aberration diurne résulte de la combinaison de la vitesse de lumière avec la vitesse de la rotation diurne de l'observateur et l'aberration annuelle, avec la vitesse du mouvement annuel. 3, record 4, French, - aberration%20annuelle
Record 4, Spanish
Record 4, Textual support, Spanish
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