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The Government of Canada’s terminology and linguistic data bank.
OBJECTIF APOCHROMATIQUE [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 1993-12-29
Record 2, English
Record 2, Subject field(s)
- General Scientific and Technical Vocabulary
Record 2, Main entry term, English
- fluorite lens system 1, record 2, English, fluorite%20lens%20system
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record 2, French
Record 2, Domaine(s)
- Vocabulaire technique et scientifique général
Record 2, Main entry term, French
- système semi-apochromatique
1, record 2, French, syst%C3%A8me%20semi%2Dapochromatique
masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
apochromatique : Se dit d’un objectif(de microscope ou d’appareil photographique) corrigé de l'aberration chromatique axiale pour au moins trois longueurs d’onde et de l'aberration sphérique pour deux longueurs d’onde. 2, record 2, French, - syst%C3%A8me%20semi%2Dapochromatique
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1987-09-11
Record 3, English
Record 3, Subject field(s)
- Optical Instruments
Record 3, Main entry term, English
- hyperchromatic lens 1, record 3, English, hyperchromatic%20lens
Record 3, Abbreviations, English
Record 3, Synonyms, English
- apochromatic lens 1, record 3, English, apochromatic%20lens
Record 3, French
Record 3, Domaine(s)
- Instruments d'optique
Record 3, Main entry term, French
- objectif hyperchromatique
1, record 3, French, objectif%20hyperchromatique
masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- objectif apochromatique 1, record 3, French, objectif%20apochromatique
masculine noun
Record 3, Textual support, French
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1986-07-17
Record 4, English
Record 4, Subject field(s)
- Optical Instruments
Record 4, Main entry term, English
- apochromatic lens
1, record 4, English, apochromatic%20lens
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- apochromat lens 2, record 4, English, apochromat%20lens
- apochromat 3, record 4, English, apochromat
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
a fully corrected lens used for process work when full color correction is necessary. 4, record 4, English, - apochromatic%20lens
Record 4, French
Record 4, Domaine(s)
- Instruments d'optique
Record 4, Main entry term, French
- objectif apochromatique
1, record 4, French, objectif%20apochromatique
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
objectif de haute précision qui corrige les aberrations chromatiques, pour toutes les radiations du spectre, et qui s’emploie surtout dans les techniques de reproduction. 2, record 4, French, - objectif%20apochromatique
Record 4, Spanish
Record 4, Textual support, Spanish
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