TERMIUM Plus®
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ABERRATION CHROMATIQUE [2 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 2000-07-12
Record 2, English
Record 2, Subject field(s)
- Optical Instruments
- Range Measurements (Telecommunications)
Record 2, Main entry term, English
- chromatic aberration
1, record 2, English, chromatic%20aberration
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- color aberration 2, record 2, English, color%20aberration
correct
- colour aberration 3, record 2, English, colour%20aberration
correct, Great Britain
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
An optical lens defect causing color fringes, because the lens material brings different colors of light to focus at different points. 2, record 2, English, - chromatic%20aberration
Record number: 2, Textual support number: 1 CONT
... the chromatic aberration of the lens. 4, record 2, English, - chromatic%20aberration
Record number: 2, Textual support number: 1 OBS
Aberration is due to the unequal refraction of different wavelengths or colors. 5, record 2, English, - chromatic%20aberration
Record 2, Key term(s)
- Newtonian aberration
Record 2, French
Record 2, Domaine(s)
- Instruments d'optique
- Mesures à distance (Télécommunications)
Record 2, Main entry term, French
- aberration chromatique
1, record 2, French, aberration%20chromatique
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- aberration de réfrangibilité 2, record 2, French, aberration%20de%20r%C3%A9frangibilit%C3%A9
feminine noun
- chromatisme 3, record 2, French, chromatisme
masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Aberration provenant de la variation des indices de réfraction des éléments d'un objectif en fonction de la longueur d'onde. 2, record 2, French, - aberration%20chromatique
Record number: 2, Textual support number: 1 CONT
L'objectif doit éviter les défauts ordinaires des lentilles (chromatisme). 3, record 2, French, - aberration%20chromatique
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Instrumentos ópticos
- Medidas de distancia (Telecomunicaciones)
Record 2, Main entry term, Spanish
- aberración cromática
1, record 2, Spanish, aberraci%C3%B3n%20crom%C3%A1tica
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
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