TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

In essence, [optical coherence tomography(OCT) ] provides a multifrequency hologram and the refocusing method may be applied frequency-by-frequency to effectively move the focal plane even to planes outside the Rayleigh range. However, the image in the plane of the original focus is then out of focus.  2, record 1, English, - multifrequency%20hologram

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

The argument of pericenter, for example, is defined as follows. There is a line through space which is fixed by convention as a reference. If one body orbits another(for instance the Moon orbiting around the Earth) the argument of pericenter associated with this orbit is the angle in the plane of the orbit between the reference line and the closest point of the orbit to the focus. The angle described above is measured from the focus of the orbit and in the direction which the object orbits.  5, record 2, English, - argument%20of%20pericenter

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Angle ayant pour sommet le centre de masse du corps principal et dont les côtés passent respectivement par le nœud ascendant et le périastre.  3, record 2, French, - argument%20du%20p%C3%A9riastre

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

The angle or arc from the ascending node to the closest approach of the orbiting body to the focus or perigee point, as measured at the focus of an elliptical orbit, in the orbital plane in the direction of motion of the orbiting body.  1, record 3, English, - argument%20of%20perigee

Record number: 3, Textual support number: 1 OBS

argument of perigee: term and definition provided by the Canadian Hydrographic Service.  1, record 3, English, - argument%20of%20perigee

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

L'arc ou l'angle entre le nœud ascendant et le point d'approche minimale du foyer, ou périgée, d'un satellite tel que mesuré au foyer d'une orbite elliptique dans le plan de l'orbite et dans la direction du déplacement du satellite.  1, record 3, French, - argument%20de%20p%C3%A9rig%C3%A9e

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 OBS

In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane.  2, record 4, English, - projector%20aperture

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 OBS

L'ouverture d'un objectif photographique est le réglage qui permet d'ajuster le diamètre d'ouverture du diaphragme.  2, record 4, French, - ouverture%20du%20projecteur

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

The image of the telescope is projected onto a microlens array. In each microlens("lenslet") focus an image of the pupil appears. The foci of the lenslets are in the focal plane of the spectrograph collimator.  1, record 5, English, - lenslet

Record number: 5, Textual support number: 1 PHR

Lenslet-based.  2, record 5, English, - lenslet

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 PHR

À base de microlentilles.  2, record 5, French, - microlentille

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

A band of light along the boundary between two media with different refractive indices.  2, record 6, English, - Becke%20line

Record number: 6, Textual support number: 1 CONT

The Becke Line test is a technique used to measure the relative refractive index of two materials. The Becke line is a bright line observed close to the boundary between two grains in plane polarised light. If the microscope focus is raised, increasing the distance between the objective lens and the sample, the Becke line will move into the material with the higher refractive index.  3, record 6, English, - Becke%20line

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Ligne brillante environnant un objet examiné au microscope avec un objectif de faible ouverture.  2, record 6, French, - frange%20de%20Becke

Record number: 6, Textual support number: 1 CONT

[...] un moyen d'évaluer les indices relatifs, au microscope en plaque mince; on envoie en incidence à l'aide du condenseur un faisceau non pas parallèle, mais convergent; à la sortie, la lumière se concentre du côté le plus réfringent, en un faisceau légèrement oblique [...]; d'où un liseré lumineux, la «frange de Becke».  3, record 6, French, - frange%20de%20Becke

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

An eyepiece fitted with a filar micrometer the lines of which are in the focal plane of the eyepiece and so coincide with the objective image when the microscope or telescope is in focus.  4, record 7, English, - micrometer%20eyepiece

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 OBS

Le terme «oculaire» est un générique, mais il peut être utilisé quand le contexte est suffisamment clair, comme l'illustre l'exemple donné dans le contexte qui suit.  1, record 7, French, - oculaire%20microm%C3%A9trique

Record number: 7, Textual support number: 1 CONT

Le micromètre de microscope micrométrique comporte un cadre muni de traits très fins ou de fils d'araignée tendus, entraîné par la vis et placé dans le plan où se forme l'image donnée par l'objectif; les traits ou les fils sont observés à l'aide de l'oculaire, en même temps que cette image.  3, record 7, French, - oculaire%20microm%C3%A9trique

Record number: 7, Textual support number: 2 OBS

Voir aussi «microscope micrométrique».  1, record 7, French, - oculaire%20microm%C3%A9trique

Record 7,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

An instrument which produces parallel rays of light.  2, record 9, English, - collimator

Record number: 9, Textual support number: 1 OBS

A collimator usually consists of a tube having an objective converging lens with an arrangement of cross hairs placed in the plane of its principal focus. It is used in testing and adjusting certain optical surveying instruments.  3, record 9, English, - collimator

Record number: 9, Textual support number: 2 OBS

collimator: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  4, record 9, English, - collimator

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 DEF

Appareil lenticulaire de visée portant deux lignes de foi (perpendiculaires) et permettant le pointage rapide (souvent à l'infini) d'un appareil d'observation.  2, record 9, French, - collimateur

Record number: 9, Textual support number: 1 OBS

collimateur : terme uniformisé par le Groupe de travail de terminologie de l'Artillerie royale canadienne par le Comité de terminologie française de doctrine et de tactique de l'Armée de terre et par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  3, record 9, French, - collimateur

Record 9,  Textual support,  Spanish

Record number: 9, Textual support number: 1 DEF

Instrumento óptico que produce rayos paralelos de luz.  1, record 9, Spanish, - colimador

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

A lens with near-zero field curvature(i. e., the lens focus is on a flat plane regardless of the angle of incidence of the light).  1, record 10, English, - flat%2Dfield%20lens

Record number: 10, Textual support number: 1 OBS

Flat-field lenses are used extensively in graphics applications.  1, record 10, English, - flat%2Dfield%20lens

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Lentille dotée d'une courbure de champ réduite de façon quasi absolue, de sorte que le foyer de la lentille repose sur un plan focal uniforme sur toute la surface de l'image captée, indépendamment de l'angle d'incidence de la lumière.  2, record 10, French, - lentille%20%C3%A0%20champ%20plat

Record number: 10, Textual support number: 1 OBS

Les lentilles à champ plat sont largement utilisées pour des applications graphiques.  2, record 10, French, - lentille%20%C3%A0%20champ%20plat

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

A small depth of field, with just one plane(foreground, middle-ground, or background) in focus.  2, record 11, English, - shallow%20focus

Record number: 11, Textual support number: 1 OBS

The Dictionary of New Media is available at: <a href="http://hepdigital.com/" title="http://hepdigital.com">http://hepdigital.com</a>.  3, record 11, English, - shallow%20focus

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Netteté de profondeur réduite à la mise au point d'un seul plan (avant-plan, plan intermédiaire ou arrière-plan).  2, record 11, French, - faible%20profondeur%20de%20champ

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

A technique that uses shallow focus (shallow depth of field) to direct the attention of the viewer forcibly from one subject to another.  3, record 12, English, - rack%20focusing

Record number: 12, Textual support number: 1 OBS

Focus is pulled, or changed, to shift the focus plane, often rapidly, sometimes several times within the shot.  3, record 12, English, - rack%20focusing

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 DEF

Technique de mise au point qui fait appel à une faible profondeur de champ afin d'entraîner le regard du spectateur d'une centre d'intérêt à un autre.  3, record 12, French, - bascule%20de%20point

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

ED : Extra Low dispersion-usually refers to glass type. Glass with ED properties indicating special rare earth glass or special formulated glass limiting or correcting light rays passing through the lens elements to achieve all spectrum of colours to fall on the same plane of focus-especially the Red and Blue spectrum and is usually more apply to longer focal length lenses where the problem is more serious.  2, record 13, English, - rare%2Dearth%20glass

Record number: 13, Textual support number: 2 CONT

These include rare-earth glass like lanthanum flints and crowns and thoria glasses.  3, record 13, English, - rare%2Dearth%20glass

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 CONT

Sources lumineuses avec filtre de verre en terre rare. Il existe [...] des instruments pour lesquels l'utilisation des raies de deutérium n'est pas valable. Aussi quelles autres options existe-t-il? Une des possibilités les plus simples est d'ajouter un filtre standard constitué de verre en terre rare, par exemple de la silice mélangée avec un oxyde terreux. On utilise en général l'holmium qui donne des bandes d'absorption comprises entre 241 et 637 nm, ou le didymium (573 à 803 nm).  1, record 13, French, - verre%20en%20terre%20rare

Record number: 13, Textual support number: 2 CONT

[...] la fabrication des verres évolue continuellement, soit par l'adjonction de substances nouvelles [...] soit par la modification des procédés mêmes de fabrication (verre à base de terres rares).  3, record 13, French, - verre%20en%20terre%20rare

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

The plane in the scene being photographed upon which the lens is focused, measured as a distance from the film plane.  1, record 14, English, - focus%20plane

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 DEF

Plan qui correspond à l'image nette pour une position donnée de l'objectif relativement au plan du film.  1, record 14, French, - plan%20de%20mise%20au%20point

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 CONT

The suite is the industry's first to focus on testing the optical control plane, the software protocols and hardware that guide optical functions and communications between multiple switches and routers.  1, record 15, English, - optical%20function

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 CONT

Les fonctions optiques pour l'imagerie, le stockage et le traitement de l'information reposent sur les composants passifs, notamment micro-optiques, mais aussi sur la maîtrise de la photonique non linéaire.  1, record 15, French, - fonction%20optique

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 CONT

Figure 1... shows the principle of laminography, a synchronized motion between an X-ray source and a detector generating an geometric focus plane and forms an X-ray slice image of that. Objects in the focal plane are always projected at the same position of the detector. On the other hand, those that are not in the focal plane are projected to other positions of the detector and thus are blurred as the source and detector move in a complete circle. Thus the "noise" from the materials above and below the focal plane is eliminated when all the images on the detectors are overlapped.  2, record 16, English, - laminography

Record number: 16, Textual support number: 1 PHR

X-ray laminography.  3, record 16, English, - laminography

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 DEF

Technique d'imagerie consistant à obtenir l'image d'un plan privilégié à l'intérieur d'un objet à partir de plusieurs images radiographiques prises sous des angles différents.  2, record 16, French, - laminographie

Record number: 16, Textual support number: 1 CONT

La laminographie est un cas particulier de la tomosynthèse dans lequel la source de rayons X, au lieu de se déplacer autour de l'objet, se déplace dans un plan parallèle au plan que l'on veut examiner. Comme la tomosynthèse, c'est une méthode de contrôle non destructif moins coûteuse que la tomographie tridimensionnelle classique.  2, record 16, French, - laminographie

Record number: 16, Textual support number: 1 PHR

Station de laminographie.  3, record 16, French, - laminographie

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

Mode of microscope illumination [first described by A. Köhler] in which the light source is imaged onto the condenser iris diaphram and the field diaphram(in front of the lamp collector lens) is imaged by the condenser onto the plane of focus of the specimen.  2, record 17, English, - K%C3%B6hler%20illumination

Record number: 17, Textual support number: 1 CONT

Kohler illumination ... is the most widely used system of illuminating a specimen in photomicroscopy. It is the illuminating system that provides best image quality and illumination.  8, record 17, English, - K%C3%B6hler%20illumination

Record number: 17, Textual support number: 1 OBS

With Koehler illumination, the aperture and field can be regulated independently to provide maximum resolution and optimum contrast. Also, a field with uniform illumination is obtained, circumscribed by the image of the field diaphram.  2, record 17, English, - K%C3%B6hler%20illumination

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 DEF

En microscopie optique, système permettant d'éclairer l'objet d'une façon uniforme quel que soit le réglage du diaphragme d'ouverture.  1, record 17, French, - %C3%A9clairage%20de%20K%C3%B6hler

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

A camera for producing multiple images in predetermined position by projection from a single image.  3, record 18, English, - step%20and%20repeat%20camera

Record number: 18, Textual support number: 1 CONT

The modern step and repeat camera consists of a machine base, a set of coordinate stages, drive systems for the coordinate stages, a coordinate position reference system, master plate holder(s) which define the image plane, a reduction lens with facilities for setting magnification and focus, a reticle locating mechanism which accurately defines the object plane and its alignment, and a suitable illuminator.  1, record 18, English, - step%20and%20repeat%20camera

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 DEF

Chambre photographique utilisée dans le procédé image par image.  3, record 18, French, - photor%C3%A9p%C3%A9teur

Record number: 18, Textual support number: 1 CONT

[...] au moins quatre ou cinq masques sont nécessaires pour réaliser un circuit intégré ... Il est donc difficilement concevable de réaliser directement, avec cet appareil, un masque d'un diamètre classique de deux pouces avec la précision maximale. Mieux vaut ne réaliser qu'un motif élémentaire qui ne fait en général que quelques millimètres carrés, puis faire un masque complet sur lequel les motifs élémentaires sont juxtaposés par photo à l'aide d'un photorépéteur.  4, record 18, French, - photor%C3%A9p%C3%A9teur

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

The overall picture formed by all possible initial conditions in the(x, x) plane is referred to as the phase portrait. Consider the motion of a pendulum which comes to rest due to air resistance. In the abstract two-dimensional phase space(with coordinates x, and velocity, x) motions appear as noncrossing spirals converging asymptotically towards the resting, fixed state. This focus is called a point attractor which attracts all local transient motions.  2, record 19, English, - phase%20portrait

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

Représentation de toutes les courbes solutions issues de toutes les conditions initiales d'un système dynamique.  3, record 19, French, - portrait%20de%20phase

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

The angular distance, measured in the orbital plane from the Earth's center(occupied focus) from the perigee to the current location of the satellite(orbital body).  1, record 20, English, - true%20anomaly

Record number: 20, Textual support number: 1 OBS

Term and definition provided by the Canadian Hydrographic Service.  1, record 20, English, - true%20anomaly

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 DEF

Distance angulaire, mesurée dans le plan orbital au centre de la Terre (foyer occupé), entre le périgée et la position instantanée du satellite (corps orbital).  1, record 20, French, - anomalie%20vraie

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 DEF

A fixed line used in one method of defining a conic; the distance from this line divided by the distance from a fixed point (called the focus) is the same for all points on the conic.  2, record 21, English, - directrix

Record number: 21, Textual support number: 2 DEF

The plural form of directrix is "directrixes" or "directrices".  3, record 21, English, - directrix

Record number: 21, Textual support number: 1 CONT

The parabola is a plane curve generated by a point that moves along a path equidistant from a fixed line(directrix) and a fixed point(focus).  4, record 21, English, - directrix

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 DEF

Droite servant de support à une ligne appelée génératrice. La combinaison de ces deux lignes permet de générer une surface.  2, record 21, French, - directrice

Record number: 21, Textual support number: 1 CONT

La parabole est une courbe, telle que chacun de ses points est à égale distance d'une droite nommée directrice et d'un point fixe nommé foyer.  3, record 21, French, - directrice

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 CONT

[Taking Close-ups. ] With telephoto lenses, first focus on an object at infinitly with the lens mounted normally on the camera. Measure forward from the film plane a distance equal to the focal length of the lens and mark the lens barrel at that point.  1, record 22, English, - lens%20barrel

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 DEF

Pièce mécanique permettant la fixation et le centrage d'une lentille ou d'un groupe de lentilles dans la monture d'un objectif.  2, record 22, French, - barillet

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 CONT

The vertical swing front [of a view camera] is used to focus and increase the depth of field when the vertical swing back is set off centre. When the vertical swing back is tilted away from centre, the film plane is not parallel to the image produced by the lens.  1, record 23, English, - vertical%20swing%20front

Record 23,  Textual support,  French

Record 23,  Textual support,  Spanish