TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
ANGULAR LIMIT [4 records]
Record 1 - internal organization data 2015-02-17
Record 1, English
Record 1, Subject field(s)
- Optics
Record 1, Main entry term, English
- diffraction limited
1, record 1, English, diffraction%20limited
correct, adjective
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The resolution of an optical imaging system – a microscope, telescope, or camera – can be limited by factors such as imperfections in the lenses or misalignment. However, there is a fundamental maximum to the resolution of any optical system which is due to diffraction. An optical system with the ability to produce images with angular resolution as good as the instrument's theoretical limit is said to be diffraction limited. 2, record 1, English, - diffraction%20limited
Record 1, French
Record 1, Domaine(s)
- Optique
Record 1, Main entry term, French
- limité par la diffraction
1, record 1, French, limit%C3%A9%20par%20la%20diffraction
correct, adjective
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
En optique ondulatoire, un système idéal imageant parfaitement un point objet n'est limité que par la diffraction, c'est-à-dire que seule la diffraction intervient et que les aberrations ne déforment pas le front d'onde. 2, record 1, French, - limit%C3%A9%20par%20la%20diffraction
Record number: 1, Textual support number: 1 OBS
Limite de diffraction – Les instruments optiques contiennent le plus souvent une chambre noire. La lumière passant par l'ouverture de la chambre noire subit une diffraction. Or la diffraction limite le pouvoir de résolution des instruments optiques : un objet ponctuel donne une image «floue», appelée tache de diffraction. Si deux détails d'un objet sont trop proches, les taches de diffraction se chevauchent et il devient impossible d'obtenir des images séparées de ces détails. 3, record 1, French, - limit%C3%A9%20par%20la%20diffraction
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-03-21
Record 2, English
Record 2, Subject field(s)
- Nuclear Physics
Record 2, Main entry term, English
- elastic collision law
1, record 2, English, elastic%20collision%20law
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Elastic collision law. An important detail which has not been discussed carefully enough in the literature is the collision law for particle–particle and particle–wall collisions in the presence of a deforming particle shape or deforming wall. The collision law that we use is an elastic one, in the following sense : linear andangular momentum are conserved, and the direction of the relative normal surface-to-surface velocityv[ cross-radial] at the point ofcontact is reversed upon collision(but the magnitude is unchanged). It is most convenient to consider binary collisions only and then just take the limit that the ‘‘mass’’ of a hard wall goes to infinity. 1, record 2, English, - elastic%20collision%20law
Record 2, French
Record 2, Domaine(s)
- Physique nucléaire
Record 2, Main entry term, French
- loi du choc élastique
1, record 2, French, %20loi%20du%20choc%20%C3%A9lastique
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
On appelle «élastique» un processus dans lequel l’énergie cinétique est conservée. Par choc élastique, un neutron est néanmoins ralenti (sauf éventuellement dans le domaine thermique) car le noyau cible, pratiquement immobile initialement, encaisse un certain recul au cours du choc; nous verrons que le ralentissement élastique est surtout efficace si les collisions ont lieu sur les noyaux légers. 1, record 2, French, - %20loi%20du%20choc%20%C3%A9lastique
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1985-06-17
Record 3, English
Record 3, Subject field(s)
- Range Measurements (Telecommunications)
Record 3, Main entry term, English
- angular partition limit
1, record 3, English, angular%20partition%20limit
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, French
Record 3, Domaine(s)
- Mesures à distance (Télécommunications)
Record 3, Main entry term, French
- limite de séparation angulaire 1, record 3, French, limite%20de%20s%C3%A9paration%20angulaire
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1976-06-19
Record 4, English
Record 4, Subject field(s)
- Optics
Record 4, Main entry term, English
- angular limit 1, record 4, English, angular%20limit
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, French
Record 4, Domaine(s)
- Optique
Record 4, Main entry term, French
- angle de visibilité
1, record 4, French, angle%20de%20visibilit%C3%A9
masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record 4, Spanish
Record 4, Textual support, Spanish
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