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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

An optical fiber whose refractive index profile has been so controlled that light rays traveling in the high refractive index core or center... and the rays traveling in the outer lower index material... arrive at the end of the fiber at the same time and at the same place...  2, record 1, English, - compensated%20optical%20fibre

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

To overcome pulse-spreading many of today's [optical] fibers have a core whose refractive index is graded, or shaped, to compensate for the different distances the rays travel. In such fibers the refractive index decreases with radial distance away from the center.... Graded-index fibers now being tested in the field reduce this dispersion by a factor of 25...  4, record 2, English, - graded%2Dindex

Record number: 2, Textual support number: 1 PHR

axial graded index, radial graded index  3, record 2, English, - graded%2Dindex

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Parmi les types de fibres actuellement disponibles, on distingue les fibres optiques «à saut d'indice» (ou à échelon d'indice) et les fibres «à gradient d'indice». Dans le premier cas, la variation radiale d'indice est brutale, à l'interface cœur-gaine, et la fibre est généralement constituée d'un cœur en silice dopée à l'oxyde de germanium, de phosphore, et d'une gaine en silice éventuellement dopée [...] à l'oxyde de bore. Ce sont ces oxydes dopants qui opèrent la différenciation des indices. Dans le second cas, la modification de l'indice de réfraction suit une loi parabolique : le rayon incliné s'éloignant de l'axe rencontre un milieu d'indice décroissant progressivement, ce qui a pour effet de le courber pour le ramener vers l'axe.  2, record 2, French, - %C3%A0%20gradient%20d%27indice

Record number: 2, Textual support number: 1 PHR

à gradient d'indice radial, à gradient d'indice axial  3, record 2, French, - %C3%A0%20gradient%20d%27indice

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

Any line not coincident with the primary axis which passes through the optical center of an infinitely thin lens or through the nodal points of a thick lens or of a lens system.  1, record 3, English, - secondary%20axis

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Dans un miroir sphérique c'est la droite qui joint le centre de la sphère à un point lumineux donné qui n'est pas le centre de figure.  1, record 3, French, - axe%20secondaire

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Since the optical centers of the cameras lenses are distinct, each center projects onto a distinct point into the other camera's image plane. These two image points are denoted by eL and eR and are called epipoles or epipolar points.  1, record 4, English, - epipole

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 OBS

épipôle, épipole : Bien qu'on trouve dans plusieurs sources la seconde graphie, il vaut mieux choisir la première; le terme pôle pouvant désigner «deux points principaux et opposés» tandis que le suffixe -pole signifie en grec «ville» et sert plutôt à construire des termes tels que acropole, métropole, etc.  3, record 4, French, - %C3%A9pip%C3%B4le

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

The point on the optical axis of an optical system, which is midway between the front and rear nodal points of the system.  2, record 5, English, - optical%20center

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 OBS

Le point, généralement situé au milieu d'un système optique, où tous les rayons sont censés passer.  2, record 5, French, - centre%20optique

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

A commercial film sound process that allows four individual soundtrack channels(left, center, right, surround) to be recorded onto a 35-mm film print using only two optical soundtracks, and then recovered when the film is projected.  1, record 6, English, - Dolby%20Stereo

Record number: 6, Textual support number: 1 OBS

Dolby® is a registered trademark.  3, record 6, English, - Dolby%20Stereo

Record number: 6, Textual support number: 2 OBS

LCRS stands for left, center, right, surround.  3, record 6, English, - Dolby%20Stereo

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Procédé commercial de reproduction sonore qui se fonde sur quatre canaux (gauche, centre, droite et surround [ambiance]) pour l'enregistrement sur film 35 mm et la projection.  4, record 6, French, - Dolby%20Stereo

Record number: 6, Textual support number: 1 OBS

Bien que l'on rencontre parfois la forme Dolby Stéréo (avec les accents) en français, il convient de rappeler que cette graphie n'est pas officielle.  4, record 6, French, - Dolby%20Stereo

Record number: 6, Textual support number: 2 OBS

Dolby® est une marque déposée.  4, record 6, French, - Dolby%20Stereo

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

An alteration in magnification from the center of the field to any point in the field, measured in a radial direction from the center of the field. Some radial distortion is inherent in most optical systems, but can be reduced by proper design.  2, record 7, English, - radial%20distortion

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 CONT

La distorsion radiale est due au fait que le grandissement linéaire n'est pas le même pour les rayons paraxiaux et pour les rayons éloignés de l'axe. Elle dépend de la position du diaphragme d'entrée vis à vis de l'objet, la lentille, et l'image.  2, record 7, French, - distorsion%20radiale

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

The Solar Particle Alert Network(SPAN) was implemented by the NASA Manned Spacecraft Center(MSC)-now [called] the Johnson Space Center-in Houston. It consisted of seven observatories located around the world to ensure 24-hour observations of solar activity. Hydrogen-alpha... telescopes were installed at all seven observatories to observe optical solar flares that produce solar particle events.  2, record 8, English, - solar%20particle%20alert%20network

Record 8,  Textual support,  French

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

Having more than one optical center(i. e., a bifocal with two, a trifocal with three, a progressive with many).  2, record 9, English, - multifocal

Record number: 9, Textual support number: 1 CONT

A multifocal lens is a lens that contains two or more different powers or corrections. The most common multifocal lenses are bifocals (two powers) and trifocals (three powers).  3, record 9, English, - multifocal

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 DEF

Qui a plusieurs foyers.  2, record 9, French, - multifocal

Record number: 9, Textual support number: 1 CONT

Il existe 3 types de verres multifocaux : doubles foyers, triples foyers, verres progressifs.  3, record 9, French, - multifocal

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

A lens with more than one optical center(i. e., a bifocal with two, a trifocal with three, a progressive with many).  2, record 10, English, - multifocal%20lens

Record number: 10, Textual support number: 1 CONT

A multifocal lens is a lens that contains two or more different powers or corrections. The most common multifocal lenses are bifocals (two powers) and trifocals (three powers). Quadrafocals, which are four different powers in one lens, are prescribed for special purposes. Another type of multifocal lens, the progressive additional lens, is designed to provide clear vision from far to reading distance without break or interruption. They contain no dividing lines between the different viewing sections.  3, record 10, English, - multifocal%20lens

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 CONT

Un verre multifocal est un verre correcteur supportant plusieurs puissances. Il permet de corriger en même temps la vision de près et la vision de loin. Ce type de verre est destiné aux presbytes. Il existe des verres bifocaux et des verres trifocaux.  2, record 10, French, - verre%20multifocal

Record number: 10, Textual support number: 1 OBS

Un verre progressif [...] contrairement à un verre multifocal [...] ne présente pas de saut d'image lors du passage entre différentes zones de vision.  3, record 10, French, - verre%20multifocal

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

Misalignment of optical center of eyeglass lens with visual axis of eye.  2, record 11, English, - decentration

Record number: 11, Textual support number: 1 OBS

Decentration of a lens indicates that the lens is sliding off center and may give rise to poor vision or arcuate staining or both.  3, record 11, English, - decentration

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Déplacement horizontal et/ou vertical du centre optique d'un verre de lunette par rapport à sa position théorique.  1, record 11, French, - d%C3%A9centrement

Record number: 11, Textual support number: 1 OBS

Source MVISI-F : Le nouveau dictionnaire de la vision par Michel Millodot, Médiacom Vision Éditeur, 1997.  2, record 11, French, - d%C3%A9centrement

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

A point on the axis of a lens so that, for any ray passing through this point, the incident part and the emergent part are parallel.  2, record 12, English, - optical%20center

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 DEF

Point (réel ou virtuel) situé sur l'axe optique d'une lentille par lequel un rayon lumineux incident traverse [...] cette lentille sans subir de déviation.  2, record 12, French, - centre%20optique

Record number: 12, Textual support number: 1 OBS

Source MVISI-F : Le nouveau dictionnaire de la vision par Michel Millodot, Médiacom Vision Éditeur, 1997.  3, record 12, French, - centre%20optique

Record 12,  Textual support,  Spanish

Record number: 12, Textual support number: 1 DEF

Punto de una lente donde se cruzan los rayos incidentes.  1, record 12, Spanish, - centro%20%C3%B3ptico

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 DEF

Qualifies an optical disk on which similar bits are of the same length regardless of their position in relation to the center of the disk.  1, record 13, English, - constant%20linear%20density

Record 13,  Textual support,  French

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 CONT

Inspection and observation [windows]. The windows used for examining compartments and equipment in and about the airplane, and astrodomes used for celestial navigation.  2, record 14, English, - inspection%20window

Record number: 14, Textual support number: 2 CONT

Four types of windows are installed on the aircraft [Lockheed] Flight station windows; cabin windows; door windows; inspection and observation windows... Inspection and observation windows are installed in various places where they can be used for alternate verification of important functions or for special decision-making situations. The following inspection devices and observation windows are used : Inspection tube for nose landing gear locking. Optical viewer(peephole) in flight station door. Window in door to electrical service center. Optical viewers in floor access panels to cargo compartments and galley compartment.  3, record 14, English, - inspection%20window

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 OBS

Fenêtres de visite et d'observation. Fenêtres servant à examiner les compartiments et équipements situés à l'intérieur et à l'extérieur de l'aéronef, et astrodômes servant à la navigation astronomique.  2, record 14, French, - fen%C3%AAtre%20de%20visite

Record number: 14, Textual support number: 1 CONT

Caravelle. (...) On distingue quatre catégories de hublots : - Les glaces de pare-brise. - Les hublots de cabine (comprenant les hublots des issues de secours) - Les hublots de portes avant, gauche et droite. - Les fenêtres de visite et d'observation.  3, record 14, French, - fen%C3%AAtre%20de%20visite

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 CONT

Inspection and observation [windows]. The windows used for examining compartments and equipment in and about the airplane, and astrodomes used for celestial navigation.  2, record 15, English, - observation%20window

Record number: 15, Textual support number: 2 CONT

Four types of windows are installed on the aircraft [Lockheed] Flight station windows; cabin windows; door windows; inspection and observation windows.... Inspection and observation windows are installed in various places where they can be used for alternate verification of important functions or for special decision-making situations. The following inspection devices and observation windows are used : Inspection tube for nose landing gear locking. Optical viewer(peephole) in flight station door. Window in door to electrical service center. Optical viewers in floor access panels to cargo compartments and galley compartment.  3, record 15, English, - observation%20window

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 CONT

Fenêtres de visite et d'observation. Fenêtres servant à examiner les compartiments et équipements situés à l'intérieur et à l'extérieur de l'aéronef, et astrodômes servant à la navigation astronomique.  2, record 15, French, - fen%C3%AAtre%20d%27observation

Record number: 15, Textual support number: 2 CONT

Caravelle. (...) On distingue quatre catégories de hublots: - Les glaces de pare-brise. - Les hublots de cabine (comprenant les hublots des issues de secours). - Les hublots de portes avant, gauche et droite. - Les fenêtres de visite et d'observation.  3, record 15, French, - fen%C3%AAtre%20d%27observation

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  French

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  French

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

(Modern; Air Force) A tiny dot(2 mils in diameter) in the center of the optical sight reticle(gunsight) of a fighter-bomber. "I pulled the pipper up to the MIG and fired one AIM-7".  2, record 18, English, - pipper

Record 18,  Textual support,  French

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

Photospheric obstruction from the center of the Sun to the limb due to an outward increase in optical depth, i. e. a decrease in light transmission.  2, record 19, English, - limb%20darkening

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

(...) diminution d'une grandeur photométrique, plus particulièrement de la luminance du Soleil, à l'approche du bord de son disque apparent.  1, record 19, French, - assombrissement%20au%20limbe

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

an optical fiber of circular cross section whose refractive index and other material parameters are independent of the angular displacement of the central angle and the longitudinal coordinate, although the parameters are a function of the distance from the center. i. e., the transmission media parameters are the same in all radial directions at any cross section.  1, record 20, English, - circularly%20symmetric%20fiber

Record 20,  Textual support,  French

Record 20,  Textual support,  Spanish