TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Macular surgery often requires high image resolution than is provided by the [wide-angle viewing systems]. In such a scenario, a macular lens is preferred to increase the magnification of the posterior pole for more delicate and precise surgical maneuvers, such as internal limiting membrane(ILM) and ERM [epiretinal membrane] dissection. These lenses provide a much smaller field of view, limiting their use to primarily posterior pole surgery. The view provided through these lenses is direct, thus inversion is not necessary. Most are contact lenses and require either a coupling agent or a handheld irrigation system... Lenses come in disposable and nondisposable forms.  1, record 1, English, - macular%20lens

Record number: 1, Textual support number: 1 OBS

flat lens: ... a lens with minimal curvature across its surface.  2, record 1, English, - macular%20lens

Record number: 1, Textual support number: 2 OBS

macular lens: designation usually used in the plural.  3, record 1, English, - macular%20lens

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 OBS

Lentille oculaire à courbure minimale employée pendant une chirugie maculaire.  1, record 1, French, - lentille%20maculaire

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Smart eyewear is defined as eyewear incorporating a near-to-eye display. As used herein, near-to-eye display means a display, device, or system, such as a retinal projector, virtual retinal display, visualization element, head-mounted display, heads-up display, or other near-to-eye system, typically worn on the head of a user that generates an image near the eye. In a smart eyewear configuration, a display device is often mounted adjacent to an edge of each of the wearer's eyes and an image is typically displayed in the center of each lens. The location of the displayed image, therefore, forces the wearer to gaze in a direction to view the image generated by the display. Typically positioned near the user's eye, the display is aligned to the central region of the user's field of view to allow review of the displayed information with little or no head movement. This enables the user to view the display while also viewing the area outside the central region and interacting with the surrounding environment. In another embodiment, the displayed image is aligned to a region other than the central region of the user's field of view.  5, record 2, English, - near%2Dto%2Deye%20display

Record number: 2, Textual support number: 2 CONT

Near-eye display devices are configured to present images to a user via a display that is positioned close to the user’s eyes. For example, a head-mounted augmented reality display device may be worn on a user’s head to position a near-eye display directly in front of a user’s eyes. A near-eye display may be at least partially see-through to allow a user to view a real-world background in combination with displayed virtual objects. This may allow virtual objects to be displayed such that the virtual objects appear to exist within the real-world environment.  6, record 2, English, - near%2Dto%2Deye%20display

Record number: 2, Textual support number: 3 CONT

The technology provides one or more embodiments of a near-eye display (NED) device system. An embodiment of a NED device system comprises a near-eye display device including a near-eye support structure and a near-eye display (NED) supported by the near-eye support structure and having a display field of view. The NED system further comprises an image generation unit supported by the near-eye support structure which outputs image data which is optically coupled to the near-eye display (NED).  4, record 2, English, - near%2Dto%2Deye%20display

Record number: 2, Textual support number: 1 OBS

near-to-eye display; near-eye display: data validated by Canadian subject-field experts from École Polytechnique de Montréal, MasterpieceVR and McGill University.  7, record 2, English, - near%2Dto%2Deye%20display

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 CONT

[…] se contempla que al menos una pantalla […] comprendida en el dispositivo […] no permita ver al usuario a través de ella (es decir, que no sea transparente), siendo preferentemente de tipo NED (siglas en inglés de la expresión "near-eye display" o pantalla cercana al ojo) […]  1, record 2, Spanish, - pantalla%20cercana%20al%20ojo

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

The performance of binoculars is quantified by terms such as level of magnification, objective lens diameter, twilight performance factor, exit pupil diameter, transmission, resolving power and field of view. The list of "niceties" includes dioptric adjustment range, individual ocular adjustment, eye relief and individual focus.  1, record 3, English, - individual%20ocular%20adjustment

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

D'autres sont des «plus»: amplitude de réglage dioptrique, oculaires réglables individuellement, dégagement de l'œil et mise au point séparée pour chaque œil.  1, record 3, French, - oculaire%20r%C3%A9glable%20individuellement

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

The lens in a two-lens eyepiece which is farther from the eye.  3, record 4, English, - field%20lens

Record number: 4, Textual support number: 1 CONT

Above the field lens, and at some distance from it, is a second and much smaller lens, called the eye lens, which converts each ray pencil into a parallel [also collective lens p. 388]  2, record 4, English, - field%20lens

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

[...] on distingue deux parties dans un oculaire : un verre de champ [et un verre d'œil].  1, record 4, French, - verre%20de%20champ

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

The performance of binoculars is quantified by terms such as level of magnification, objective lens diameter, twilight performance factor, exit pupil diameter, transmission, resolving power and field of view. The list of "niceties" includes dioptric adjustment range, individual ocular adjustment, eye relief and individual focus.  1, record 5, English, - individual%20focus

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

D'autres sont des «plus»: amplitude de réglage dioptrique, oculaires réglables individuellement, dégagement de l'œil et mise au point séparée pour chaque œil.  1, record 5, French, - mise%20au%20point%20s%C3%A9par%C3%A9e%20pour%20chaque%20%26oelig%3Bil

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

Above the field lens, and at some distance from it, is a second and much smaller lens, called the eye lens, which converts each ray pencil into a parallel.  1, record 6, English, - eye%20lens

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

[...] on distingue deux parties dans un oculaire : un verre de champ [...] et un verre d'œil.  1, record 6, French, - verre%20d%27%26oelig%3Bil

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

Extreme wide-angle lens covering an angular field of over 140 degrees(typically around 180 degrees but can extend to over 200 degrees with increasing "barrel distortion" towards the edges of the field.  2, record 7, English, - fish%2Deye

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Terme désignant un objectif à très grand angle (environ 180 degrés) utilisé pour obtenir un champ maximal ou des effets spéciaux.  1, record 7, French, - %26oelig%3Bil%2Dde%2Dpoisson

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

Brightfield microscopy is the most elementary form of microscope illumination techniques... The name "brightfield" is derived from the fact that the specimen is dark and contrasted by the surrounding bright viewing field.... In brightfield microscopy a specimen is placed on the stage of the microscope and incandescent light from the microscope's light source is aimed at a lens beneath the specimen.... light passes through the specimen and then is collected by an objective lens situated in a turret above the stage.... This technique can be used to view fixed specimens or live cells. Since many organic specimens are transparent or opaque, staining is required to cause the contrast that allows them to be visible under the microscope.  2, record 8, English, - bright%2Dfield%20optical%20microscopy

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

La microscopie optique en champ clair (ou «à fond clair») est la plus simple et la plus ancienne des techniques de microscopie. [...] L'illumination se fait par transmission de lumière blanche, c'est-à-dire que l'échantillon est illuminé par dessous et observé par dessus. Les limitations de cette technique sont principalement un faible contraste de la plupart des échantillons biologiques et une résolution faible due au flou créé par la matière hors du plan focal. En contrepartie, la technique est simple et l'échantillon ne nécessite qu'une préparation minime.  1, record 8, French, - microscopie%20optique%20en%20champ%20clair

Record number: 8, Textual support number: 1 OBS

La microscopie à fond clair permet d'observer des préparations colorées (sans coloration, on ne voit rien).  3, record 8, French, - microscopie%20optique%20en%20champ%20clair

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

An optical lens having a large angular field, generally greater than 80 degrees.  2, record 9, English, - wide%2Dangle%20lens

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 DEF

[...] objectifs anastigmats qui, grâce à une constitution particulière, permettent d'embrasser un angle de champ beaucoup plus étendu, à longueur égale, que les objectifs normaux.  1, record 9, French, - objectif%20grand%2Dangle

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 OBS

Terms confirmed by an optician.  1, record 10, English, - full%20field%20aspheric%20lens

Record number: 10, Textual support number: 2 OBS

aspheric lens: Eyeglass lens which has a relatively flattered front surface in the periphery.  1, record 10, English, - full%20field%20aspheric%20lens

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 CONT

Les lentilles prescrites peuvent être de formes lenticulaire asphérique ou plein champ asphérique.  1, record 10, French, - lentille%20de%20forme%20plein%20champ%20asph%C3%A9rique

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 CONT

A useful feature found on most 35 mm SLR lens barrels is a stop-down button that, upon being pressed, lets you see beforehand how much depth of field there is in your frame at your present f-stop setting.  1, record 11, English, - stop%2Ddown%20button

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 CONT

Le bouton de préréglage de la profondeur de champ commande à l'objectif de prendre l'ouverture choisie avant la prise de vue. De cette façon, on peut voir ce qui sera au point dans la photographie.  1, record 11, French, - bouton%20de%20pr%C3%A9r%C3%A9glage%20de%20la%20profondeur%20de%20champ

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

The lens in a telescopic or microscopic system nearest the object, serving to converge light from points in the field of view.  2, record 12, English, - objective

Record number: 12, Textual support number: 2 DEF

The primary light-gathering, image-forming lens or mirror of a telescope.  3, record 12, English, - objective

Record number: 12, Textual support number: 1 CONT

In any telescope, the main lens or mirror is called the objective.  4, record 12, English, - objective

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 DEF

[...] pièce principale de tous les instruments d'optique astronomiques; il reçoit sur sa surface les rayons lumineux qui viennent d'un point du ciel, et doit les concentrer en un seul point image.  2, record 12, French, - objectif

Record number: 12, Textual support number: 1 CONT

La pièce optique essentielle d'une lunette astronomique est son objectif, [...] constitué par deux lentilles de façon à être achromatique.  3, record 12, French, - objectif

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

The macro lenses that [are recommended] are undoubtedly good lenses, but the idea that a lens optimised for flat objects is somehow worse for three-dimensional subjects is pure marketing speak. The only exception is when the field curvature of the non-flat field lens is optimised to a known, curved subject or film plane, as in some aerial mapping lenses.  2, record 13, English, - aerial%20mapping%20lens

Record number: 13, Textual support number: 1 OBS

aerial mapping lens: term used at Natural Resources Canada - Earth Sciences Sector.  3, record 13, English, - aerial%20mapping%20lens

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 OBS

cartographie aérienne: Utilisation d'un aéronef dans le but de tracer des cartes à l'aide d'une caméra ou d'autres appareils de mesure ou dispositifs enregistreurs.  2, record 13, French, - objectif%20utilis%C3%A9%20en%20cartographie%20a%C3%A9rienne

Record number: 13, Textual support number: 2 OBS

objectif utilisé en cartographie aérienne : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  3, record 13, French, - objectif%20utilis%C3%A9%20en%20cartographie%20a%C3%A9rienne

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

An optical device, usually located nearby the focal plane, used to correct lens aberrations outside the optical axis in order to widen the detection field.  2, record 14, English, - field%20corrector

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 DEF

Dispositif optique, généralement placé au voisinage du plan focal, et destiné à corriger les aberrations en dehors de l'axe optique pour agrandir le champ de détection.  1, record 14, French, - correcteur%20de%20champ

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 DEF

Curvilinear distortion of an optical or electronic image in which horizontal and vertical straight lines appear concave, bowed inwards.  2, record 15, English, - pincushion%20distortion

Record number: 15, Textual support number: 2 DEF

Optical distortion of the image formed by an uncorrected lens. Straight lines parallel to the edge of the field are reproduced as curved lines convex towards the optical axis.  5, record 15, English, - pincushion%20distortion

Record number: 15, Textual support number: 1 OBS

Compare "barrel distortion".  6, record 15, English, - pincushion%20distortion

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 DEF

Distorsion géométrique telle que les lignes ne passant pas par l'axe optique ou le centre de l'image sont reproduites avec une convexité dirigée vers ce centre et qui croît avec la distance à celui-ci.  2, record 15, French, - distorsion%20en%20coussinet

Record number: 15, Textual support number: 1 CONT

Si l'on photographie une grille formée de barreaux droits égaux et équidistants, l'image doit les restituer parfaitement rectilignes; lorsque les barreaux marginaux sont incurvés vers l'extérieur, la distorsion est dite «en barillet», s'ils sont incurvés vers l'intérieur c'est une distorsion «en coussinet» [...]  5, record 15, French, - distorsion%20en%20coussinet

Record 15,  Textual support,  Spanish

Record number: 15, Textual support number: 1 CONT

Al diafragmar una lente simple se produce una distorsión que puede manifestarse con dos aspectos diferentes, según la posición del diafragma [...]: si el diafragma se halla frente a la lente, la imagen dada por ésta adolece de distorsión en barrilete y las rectas de la cuadrícula aparecen como curvas con su concavidad hacia el eje óptico; por el contrario, la posición del diafragma detrás de la lente, da una distorsión en corsé [...]  1, record 15, Spanish, - distorsi%C3%B3n%20en%20cors%C3%A9

Record 16,  Textual support,  English

Record number: 16, 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 16, English, - flat%2Dfield%20lens

Record number: 16, Textual support number: 1 OBS

Flat-field lenses are used extensively in graphics applications.  1, record 16, English, - flat%2Dfield%20lens

Record 16,  Textual support,  French

Record number: 16, 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 16, French, - lentille%20%C3%A0%20champ%20plat

Record number: 16, Textual support number: 1 OBS

Les lentilles à champ plat sont largement utilisées pour des applications graphiques.  2, record 16, French, - lentille%20%C3%A0%20champ%20plat

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

A camera with two or more lenses, the axes of the lenses being systematically arranged at a fixed angle to cover a wide field by simultaneous exposures in all chambers. In most such cameras the oblique lenses are arranged symmetrically around a central lens.  2, record 17, English, - multiple%20lens%20camera

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 CONT

C'est un appareil de prise de vues aériennes à objectifs multiples comportant essentiellement : une chambre verticale (parfois) et plusieurs chambres latérales, fournissant des images obliques disposées symétriquement par rapport à l'image verticale.  3, record 17, French, - chambres%20%C3%A0%20objectifs%20multiples

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

[On a screen-focusing camera, ] lens panel... hinged about its axis so that it can be used, in conjunction with the swing back, to control perspective and/or relocate the plane of maximum sharpness producing a similar result to an increase of the depth of field.  2, record 18, English, - swing%20front

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 DEF

Sur une chambre noire munie d'un châssis à verre dépoli, porte-objectif qui s'articule sur son axe, parallèlement à la bascule arrière, afin d'assurer un meilleur contrôle de la perspective et/ou de réaligner le plan de la limite de netteté afin de produire un résultat comparable à une augmentation de la profondeur de champ.  2, record 18, French, - bascule%20avant

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

Limitation of sharpness to a preselected zone of depth.  1, record 19, English, - selective%20focusing

Record number: 19, Textual support number: 1 CONT

Selective focusing is done to isolate a subject by causing other elements in a scene to be blurred. It is done by choosing a lens opening that produces a shallow depth of field.  3, record 19, English, - selective%20focusing

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

Mise au point limitant la netteté à une zone de profondeur déterminée.  2, record 19, French, - mise%20au%20point%20s%C3%A9lective

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

To adjust the focus of a lens at the infinity setting generally to provide a better depth of field.  4, record 20, English, - set%20to%20the%20infinity%20stop

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 DEF

Amener la bague d'une lentille à la position infinie de manière à augmenter la profondeur de champ.  3, record 20, French, - r%C3%A9gler%20%C3%A0%20l%27infini

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 DEF

The region of space recorded by a lens.  2, record 21, English, - lens%20field

Record number: 21, Textual support number: 1 OBS

Any point which does not lie on the lens axis is sometimes said to be "in the field" of the lens.  2, record 21, English, - lens%20field

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 DEF

Portion d'espace visible que l'objectif d'un appareil photographique permet d'embrasser.  2, record 21, French, - champ%20couvert

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 DEF

The zone in which the depth of field of a given lens and aperture show details(shallow or deep) in a shot.  2, record 22, English, - field%20of%20sharpness

Record number: 22, Textual support number: 1 CONT

A few elements that will affect depth of field in a picture :... the focal length of the lens(the wide angle lenses have extended field of sharpness than a longer focal length lenses and vice versa)...  1, record 22, English, - field%20of%20sharpness

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 DEF

Zone d'une image dans laquelle sont représentés les détails occasionnés par la profondeur de champ et dont la netteté varie selon l'objectif et l'ouverture utilisés.  2, record 22, French, - champ%20de%20nettet%C3%A9

Record number: 22, Textual support number: 1 CONT

L'ouverture du diaphragme est déterminée par la profondeur de champ désirée; plus le diaphragme sera fermé, plus grand sera le champ fournissant des images nettes. La profondeur de champ net dépend aussi de l'objectif utilisé : plus l'objectif est court, plus le champ de netteté est grand; le téléobjectif réduisant cette profondeur de champ implique donc un réglage soigné.  3, record 22, French, - champ%20de%20nettet%C3%A9

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 DEF

... subtracting the image information from an empty field of view from that of the same field of view with the sample added.  1, record 23, English, - flat%20field%20correction

Record number: 23, Textual support number: 1 OBS

[The flat field correction] process subtracts all background image information associated with such things as uneven lighting sources, lens dust etc.  1, record 23, English, - flat%20field%20correction

Record 23,  Textual support,  French

Record 23,  Textual support,  Spanish

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 DEF

An auxiliary lens used to correct curvature of field as an alternative to curving the film or projection screen plane or stopping down the lens to improve definition across the whole field.  1, record 24, English, - field%20flattener

Record number: 24, Textual support number: 1 OBS

The field flattener is often placed near the image surface.  1, record 24, English, - field%20flattener

Record 24,  Textual support,  French

Record 24,  Textual support,  Spanish

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 DEF

The distance measured along the optical axis of the lens from the rear nodal point to the plane of best average definition over the entire field used in a camera.  1, record 25, English, - equivalent%20focal%20length

Record number: 25, Textual support number: 1 OBS

equivalent focal length: term and definition standardized by NATO.  2, record 25, English, - equivalent%20focal%20length

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 DEF

Distance, mesurée le long de l'axe optique, du point nodal image de l'objectif au plan où l'on obtient la meilleure définition pour l'ensemble du cliché.  1, record 25, French, - distance%20focale%20%C3%A9quivalente

Record number: 25, Textual support number: 1 OBS

distance focale équivalente : terme et définition normalisés par l'OTAN.  2, record 25, French, - distance%20focale%20%C3%A9quivalente

Record 25,  Textual support,  Spanish

Record number: 25, Textual support number: 1 DEF

Distancia medida sobre el eje óptico de las lentes desde el punto nodal de la parte de atrás hasta el plano de mejor enfoque del campo visual de la cámara.  1, record 25, Spanish, - distancia%20focal%20equivalente

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 DEF

The plane, perpendicular to the optical axis of the lens, in which images of points in the object field of the lens are focused.  2, record 26, English, - focal%20plane

Record number: 26, Textual support number: 1 OBS

focal plane: term and definition standardized by NATO.  3, record 26, English, - focal%20plane

Record 26,  Textual support,  French

Record number: 26, Textual support number: 1 DEF

Plan perpendiculaire à l'axe d'un objectif et qui contient les images ponctuelles des différents points du champ de cet objectif.  2, record 26, French, - plan%20focal

Record number: 26, Textual support number: 1 OBS

plan focal : terme et définition normalisés par l'OTAN et uniformisés par le Groupe de travail de terminologie des armes légères.  2, record 26, French, - plan%20focal

Record 26,  Textual support,  Spanish

Record number: 26, Textual support number: 1 DEF

Plano, perpendicular al eje óptico de las lentes, en el que están las imágenes de los puntos del objeto enfocado.  1, record 26, Spanish, - plano%20focal

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 CONT

A long-focus lens gives a high resolution image over quite a narrow field of view. Its long focal length means that the main lens elements must be mounted at the front of a long tube to be at a sufficient distance from the film to form a sharp image.  2, record 27, English, - long%20focal%20length%20lens

Record 27,  Textual support,  French

Record number: 27, Textual support number: 1 CONT

Objectifs de longue focale - Leur angle de champ est inférieur ou très inférieur à celui de l'objectif normal. [...] Un objectif de longue focale donne une image dont la perspective - la convergence naturelle des lignes parallèles du sujet - semble moins forte. Les plans du sujet, normalement étagés en profondeur - un paysage, par exemple - paraissent se confondre les uns avec les autres.  5, record 27, French, - objectif%20%C3%A0%20longue%20focale

Record 27,  Textual support,  Spanish

Record 28,  Textual support,  English

Record number: 28, 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 28, English, - K%C3%B6hler%20illumination

Record number: 28, 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 28, English, - K%C3%B6hler%20illumination

Record number: 28, 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 28, English, - K%C3%B6hler%20illumination

Record 28,  Textual support,  French

Record number: 28, 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 28, French, - %C3%A9clairage%20de%20K%C3%B6hler

Record 28,  Textual support,  Spanish

Record 29,  Textual support,  English

Record number: 29, Textual support number: 1 CONT

The performance of binoculars is quantified by terms such as level of magnification, objective lens diameter, twilight performance factor, exit pupil diameter, transmission, resolving power and field of view. The list of "niceties" includes dioptric adjustment range, individual ocular adjustment, eye relief and individual focus.  1, record 29, English, - exit%20pupil%20diameter

Record 29,  Textual support,  French

Record number: 29, Textual support number: 1 CONT

Certaines de ces qualités sont quantifiables, comme le grossissement, le diamètre de l'objectif, le facteur de mérite, le diamètre de pupille de sortie, la transmissibilité et le champ.  1, record 29, French, - diam%C3%A8tre%20de%20pupille%20de%20sortie

Record 29,  Textual support,  Spanish

Record 30,  Textual support,  English

Record number: 30, Textual support number: 1 OBS

its optical system consists of a 50 mm primary objective lens, a spherical field mirror, relay lenses, a proprietary, gyroscope-mounted prism, secondary objective lenses, a beam splitter assembly, and the two eye lenses.  1, record 30, English, - stabilized%20image%20binocular

Record number: 30, Textual support number: 2 OBS

for use on moving platforms causing vibrations.  1, record 30, English, - stabilized%20image%20binocular

Record 30,  Textual support,  French

Record number: 30, Textual support number: 1 DEF

sorte de longue-vue composée essentiellement d'un objectif, d'un miroir concave, d'un prisme qui corrige les vibrations à l'aide d'un gyroscope et d'un dispositif de vision binoculaire.  1, record 30, French, - lunette%20gyroscopique%20binoculaire

Record 30,  Textual support,  Spanish

Record 31,  Textual support,  English

Record 31,  Textual support,  French

Record number: 31, Textual support number: 1 DEF

Objectif utilisé pour les reportages, à l'exclusion des zooms.  1, record 31, French, - objectif%20de%20reportage

Record 31,  Textual support,  Spanish

Record 32,  Textual support,  English

Record number: 32, Textual support number: 1 DEF

Amount by which the front of a field, technical or similar camera can be extended, e. g., to twice the focal length of the normal lens.  1, record 32, English, - double%20extension

Record 32,  Textual support,  French

Record number: 32, Textual support number: 1 CONT

La facilité de dédoublement est précieuse lorsqu'on possède une chambre à double tirage (...) mais sans possibilité de changer l'optique.  1, record 32, French, - double%20tirage

Record 32,  Textual support,  Spanish

Record 33,  Textual support,  French

Record 33,  Textual support,  Spanish

Record 34,  Textual support,  English

Record number: 34, Textual support number: 1 CONT

When the wide angle lens is used [on a tripod], the front and back carriages must be mounted on the camera bed in front of the tripod hinge clamp to provide a clear field of view. Most of the camera bed then extends to the rear of the tripod hinge clamp. If panoramic sequence pictures are to be made, clamp the bed so that the lens swings approximately over the tripod centre.  1, record 34, English, - hinge%20clamp

Record 34,  Textual support,  French

Record 34,  Textual support,  Spanish

Record 35,  Textual support,  English

Record number: 35, 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 35, English, - vertical%20swing%20front

Record 35,  Textual support,  French

Record 35,  Textual support,  Spanish

Record 36,  Textual support,  French

Record 36,  Textual support,  Spanish

Record 37,  Textual support,  English

Record number: 37, Textual support number: 1 OBS

To reduce the aperture of a photographic lens to increase the depth of focus and depth of field, or to control exposure.  1, record 37, English, - stop%20down

Record 37,  Textual support,  French

Record number: 37, Textual support number: 1 OBS

Diminuer l'ouverture d'un diaphragme d'objectif pour augmenter la profondeur de champ ou de foyer ou pour régler l'exposition.  1, record 37, French, - diaphragmer

Record 37,  Textual support,  Spanish

Record 38,  Textual support,  English

Record number: 38, Textual support number: 1 OBS

--when a lens is focused on infinity, the depth of field extends from infinity to a point nearer the camera. The distance from the camera to this near limit of the sharp field is called the--.  1, record 38, English, - hyperfocal%20distance

Record 38,  Textual support,  French

Record number: 38, Textual support number: 1 OBS

(...) au-delà d'une certaine distance, 30 à 50 m, soit environ 2 000 fois le diamètre d'ouverture (...) distance appelée hyperfocale, les rayons lumineux issus d'un même point peuvent être considérés comme parallèles  1, record 38, French, - distance%20hyperfocale

Record 38,  Textual support,  Spanish