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MIRROR FIELD [22 records]

Record 1 2017-05-09

English

Subject field(s)
  • Nervous System
OBS

This simple experiment with a mirror illustrates one aspect of visual awareness. It relies on a phenomenon called binocular rivalry, which occurs when each eye has a different input from the same part of the visual field. Motion in the field of one eye can cause either the entire image or parts of the image to be erased. The movement captures the brain's attention.

French

Domaine(s)
  • Système nerveux
OBS

Cette expérience simple, qui illustre un aspect de la perception visuelle consciente, se fonde sur le phénomène de concurrence visuelle, laquelle survient lorsque la même partie du champ visuel de chaque œil reçoit une stimulation différente. Un mouvement dans le champ d'un œil efface une partie ou la totalité de l'image, car le mouvement attire l'attention du cerveau.

Spanish

Save record 1

Record 2 2017-05-05

English

Subject field(s)
  • Optical Instruments
DEF

Spectacles with a prism or mirror to allow the individual with homonymous hemianopia to see objects in his blind half field.

French

Domaine(s)
  • Instruments d'optique
DEF

Lunettes munies d'un appareil qui déplace latéralement le champ visuel d'un œil ou les deux champs visuels.

Spanish

Save record 2

Record 3 2016-02-25

English

Subject field(s)
  • Nuclear Science and Technology
  • Atomic Physics
DEF

Type of magnetic configuration where the field lines close upon themselves outside the plasma region. [Definition standardized by ISO.]

OBS

It includes: mirror configurations, cusped configurations and hybrid configurations.

OBS

The mirror machine [fusion reactor], an "open-ended" system in which the plasma is held trapped by repeated reflections of its particles between magnetic mirrors(regions of intensified magnetic field at each end of the confinement chamber).

OBS

open magnetic configuration; open configuration: terms standardized by ISO.

Key term(s)
  • open ended configuration

French

Domaine(s)
  • Sciences et techniques nucléaires
  • Physique atomique
DEF

Configuration magnétique dans laquelle les lignes de force se referment sur elles-mêmes à l'extérieur de la région où se trouve le plasma. [Définition normalisée par l'ISO.]

CONT

Parmi les configurations ouvertes, on distingue les configurations à miroirs, les configurations cuspidées et les configurations hybrides.

CONT

Les filières lentes sont caractérisées par leur type de configuration magnétique [...] Dans les configurations ouvertes, les lignes magnétiques quittent le volume de confinement, mais les particules chargées sont réfléchies le long des lignes de force par des miroirs magnétiques. Les fuites inévitables par ces miroirs rendent précaire l'obtention d'un bilan d'énergie positif : il faudrait pour cela convertir en électricité 90 % de l'énergie du plasma qui s'échappe par ces miroirs.

OBS

configuration ouverte : terme normalisé par l'ISO.

Spanish

Save record 3

Record 4 2015-05-08

English

Subject field(s)
  • Energy Transformation
  • Thermonuclear fusion
  • Atomic Physics
Universal entry(ies)
B
symbol, see observation
DEF

A coil which produces a minimum-B configuration resembling that generated by a tennis ball-seam coil but with several advantages : it produces a field of variable and higher mirror ratio, using less power; it is made up of two separate racetrack-shaped conductors, bent into a "C" shape, which confers great flexibility on the assembly.

OBS

B : This symbol is italicized.

OBS

Yin-Yang coil: term and definition standardized by ISO.

French

Domaine(s)
  • Transformation de l'énergie
  • Fusion thermonucléaire
  • Physique atomique
Entrée(s) universelle(s)
B
symbol, see observation
DEF

Bobine qui crée une configuration à B minimal ressemblant à celle engendrée par une bobine du type lacet quadripolaire, mais avec plusieurs avantages : elle produit un champ à rapport de miroir variable et plus élevé, en utilisant moins de puissance; elle est constituée de deux conducteurs séparés, en forme d'hippodrome et courbés en forme de C, ce qui assure une grande flexibilité à l'ensemble.

OBS

B : Ce symbole est en italique.

OBS

bobine Yin-Yang : terme et définition normalisés par l'ISO.

Spanish

Save record 4

Record 5 2015-04-29

English

Subject field(s)
  • Energy Transformation
  • Thermonuclear fusion
  • Atomic Physics
DEF

A coil which produces a minimum-[italic B] configuration resembling that generated by a tennis-ball-seam coil but with several advantages : it produces a field of variable and higher mirror ratio, using much less power; it is made up of two separate racetrack-shaped conductors, bent into a "C" shape which confers great flexibility on the assembly.

OBS

Yin-Yang coil: term and definition standardized by ISO.

French

Domaine(s)
  • Transformation de l'énergie
  • Fusion thermonucléaire
  • Physique atomique
DEF

Bobine qui crée une configuration à [italique B] minimal ressemblant à celle engendrée par une bobine du type lacet quadripolaire, mais avec plusieurs avantages : elle produit un champ à rapport de miroir variable et plus élevé, en utilisant moins de puissance; elle est constituée de deux conducteurs séparés, en forme d'hippodrome et courbés en forme de C, ce qui assure une grande flexibilité à l'ensemble.

OBS

bobine Yin-Yang : terme et définition normalisés par l'ISO.

Spanish

Save record 5

Record 6 2014-10-30

English

Subject field(s)
  • Optics
DEF

A reflecting surface which is a paraboloid of revolution and is used as a reflector for sound waves and microwave radiation.

CONT

The surface of a rotating fluid; The entire LMT [liquid mirror telescope] concept relies upon one physical principal : that the equilibrium shape of the surface of a uniformly rotating fluid in a constant gravitational field is a paraboloid.

French

Domaine(s)
  • Optique
CONT

Le miroir parabolique : la surface est un paraboloïde de révolution autour de l'axe principal. Si la source lumineuse est sensiblement un point au foyer du paraboloïde, le faisceau réfléchi est un faisceau cylindrique. Les réflecteurs de phares de marine ou d'automobiles sont souvent des miroirs paraboliques. Le miroir parabolique étant stigmatique pour le point à l'infini (son image est au foyer du paraboloïde), on l'utilise comme objectif dans certains télescopes.

OBS

En géométrie, il existe trois types de paraboloïdes : hyperbolique, elliptique et celui de révolution, qui est obtenu par la rotation d'une parabole autour de son axe. Dans le domaine de l'optique, le miroir parabolique a la forme d'un paraboloïde de révolution. S'il s'agit de décrire la forme d'un miroir, l'emploi du terme paraboloïde sous-entend paraboloïde de révolution, soit de forme concave. (sphérique)

Spanish

Save record 6

Record 7 2014-02-21

English

Subject field(s)
  • PAJLO
  • Property Law (common law)
OBS

Consideration must be given to, first of all, the rights and interests involved, i.e., chain of ownership, when real property is affected by a body of water; and, secondly, the physical location on the ground of the extent of such rights and interests, i.e., extent of ownership. [Lamont, "Real Estate Conveyancing," 1976, p. 559].

CONT

Under the "Land Titles Act" the chain of ownership is guaranteed by the Assurance Fund to be correct and under the mirror principle, is deemed to reflect the true existing state of the ownership. The extent of ownership, however, is not guaranteed under the "Land Titles Act, "and in final analysis the extent of lands guaranteed is controlled by the field monuments themselves. [Lamont, "Real Estate Conveyancing", 1976, p. 554].

French

Domaine(s)
  • PAJLO
  • Droit des biens et de la propriété (common law)
OBS

étendue de la propriété : terme normalisé par le Comité de normalisation dans le cadre du Programme national de l'administration de la justice dans les deux langues officielles (PAJLO).

Spanish

Save record 7

Record 8 2013-10-18

English

Subject field(s)
  • Remote Sensing
CONT

Although the scanning mirror rotates at a constant speed, the IFOV [instantaneous field of view] of the sensor moves faster(relative to the ground) and scans a larger area as it moves closer to the edges. This effect results in the compression of image features at points away from the nadir and is called tangential scale distortion.

French

Domaine(s)
  • Télédétection
CONT

Même si le miroir permettant le balayage tourne à une vitesse constante, le CVI [champ de visée instantané] du capteur se déplace plus rapidement par rapport à la surface et capte une région plus grande lorsqu'il se déplace près des bords de l'image. Cet effet produit une compression des caractéristiques de l'image pour les points éloignés du nadir et s'appelle distorsion tangentielle d'échelle.

Spanish

Save record 8

Record 9 - external organization data 2009-08-04

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
02.04.19 (19762)
ISO/IEC standard entry number
DEF

single beam scanner with an additional mirror oscillating in a plane at right angles to the scanner beam and causing, for example, a horizontal field of view to be swept up and down vertically

OBS

oscillating mirror scanner: term and definition standardized by ISO/IEC [ISO/IEC 19762-2:2008].

French

Spanish

Save record 9

Record 10 2006-06-12

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
  • Remote Sensing
DEF

An imaging system consisting of lenses, moving mirrors, and solid-state image sensors used to obtain observations of the Earth and its atmosphere.

CONT

[A] scanning radiometer... uses a rotating or oscillating mirror to scan the field to be sensed remotely.

OBS

Scanning radiometers which are the sole imaging systems on all current operational weather satellites, have far better long-term performance than the vidicon TV camera tubes used with earlier spacecraft.

OBS

Reproduced from "Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco", with the authorization of Unesco.

OBS

scanning radiometer; SR: term and abbreviation officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
  • Télédétection
DEF

Radiomètre qui, à l'aide d'un miroir plan oscillant ou rotatif, dans une direction perpendiculaire à celle de son déplacement, peut explorer un territoire défini.

OBS

Reproduit de «Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco», avec l'autorisation de l'Unesco.

OBS

radiomètre à balayage; SR : terme et abréviation uniformisés par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

Campo(s) temático(s)
  • Estaciones, instrumentos y equipos meteorológicos
  • Teledetección
DEF

Radiómetro que utiliza un espejo rotativo u oscilante para barrer el campo que se desea detectar a distancia.

OBS

Reproducido del "Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco", con la autorización de Unesco.

Save record 10

Record 11 2004-08-03

English

Subject field(s)
  • Radiography (Medicine)
DEF

A camera that records the image at the output of the image intensifier on a spot film.

CONT

The spot film or photospot camera is positioned after a semitransparent mirror used as a light splitter which shunts about 15% of the light output of the image intensifier to a television camera. The rest of the light output is directed to the photospot camera or cine camera. When used with new, high resolution, large field of view image intensifiers, photospot cameras can record diagnostic images covering large anatomical regions of the body.

Key term(s)
  • spotfilm camera

French

Domaine(s)
  • Radiographie (Médecine)

Spanish

Save record 11

Record 12 2004-02-16

English

Subject field(s)
  • Optics
CONT

The Wide Field Corrector consists of a group of lenses that removes off-axis aberrations at the f/5 focus of the converted MMT [Multiple Mirror Telescope], allowing the telescope to offer excellent images over a very large field.

French

Domaine(s)
  • Optique
CONT

« Le champ de vision de nos télescopes ne dépasse pas encore 1 degré, explique Ermanno Borra. Mais nous travaillons sur des correcteurs à grand champ qui nous permettront d'obtenir un champ de vision de 45 degrés, la moitié de celui d'un télescope conventionnel. » Les télescopes à miroirs liquides pourraient ainsi accéder à une région du ciel beaucoup plus grande.

Spanish

Save record 12

Record 13 2002-11-28

English

Subject field(s)
  • Orbital Stations
CONT

This truss segment, called "S5", is a mirror image of the P5 truss segment that arrived for processing at Kennedy Space Center in July 2001. The S5 truss segment is a 10-1/2-by-15-foot aluminum structure that will weigh 3, 900 pounds when fully processed. The truss segment will attach to the starboard side of the S4 truss and will be the tenth truss attached to the ISS [International Space Station] as part of a total 11-truss, girder-like structure that will ultimately extend the length of a football field.

CONT

The P5 and S5 segments are merely spacers that will provide enough room for the solar arrays to track the sun and not interfere with the other equipment, for example, the waste-heat radiators and antennas. The waste-heat radiators attached to segments S1 and P1 also must be clear of array movement.

OBS

S5 truss; integrated truss structure S5; S5; ITS-S5: terms and abbreviations officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
OBS

poutre S5; segment de poutre intégrée S5; S5, ITS-S5 : termes et abréviations uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 13

Record 14 2002-11-13

English

Subject field(s)
  • Astrophysics and Cosmography
  • Electromagnetic Radiation
CONT

When these particles drift around the Earth, they do not remain on common field lines unless the geomagnetic field distribution is axially symmetric. This effect has been called "drift shell splitting"... A drift shell is uniquely determined by the coordinate pair(Bm, Lm) as a surface formed by segments of magnetic field lines between conjugate mirror points. Therefore, drift shells which are tangent to one another or cut one another at a given longitude or local time where they have a common segment of field line, generally are separate from one another at a different longitude or local time---in Roederer's terms these drift shells "split". But since these drift shells are different entities from the outset, there is no real need to infer a notion of splitting.

French

Domaine(s)
  • Astrophysique et cosmographie
  • Rayonnements électromagnétiques

Spanish

Save record 14

Record 15 2002-02-12

English

Subject field(s)
  • Weapon Systems
  • Field Artillery
CONT

The GS10 is a non-magnifying, wide-angle sight with an elevating mirror and graticule showing the X10 field of view of the telescope.

French

Domaine(s)
  • Systèmes d'armes
  • Artillerie de campagne

Spanish

Save record 15

Record 16 2001-05-11

English

Subject field(s)
  • Energy Transformation
  • Thermonuclear fusion
  • Atomic Physics
DEF

Ratio of the strength of the magnetic field in a magnetic mirror configuration at the strongest point on a field line to that at some other point on the same field line(usually the point of weakest field strength between two magnetic mirrors).

OBS

mirror ratio: term and definition standardized by ISO.

French

Domaine(s)
  • Transformation de l'énergie
  • Fusion thermonucléaire
  • Physique atomique
DEF

Rapport entre les intensités du champ magnétique dans une configuration magnétique à miroir sur une même ligne de champ, d'une part au point où cette intensité est la plus forte et d'autre part en un autre point quelconque (habituellement celui où l'intensité du champ est la plus faible entre deux miroirs magnétiques).

OBS

rapport de miroir : terme et définition normalisés par l'ISO.

Spanish

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Record 17 2001-05-11

English

Subject field(s)
  • Energy Transformation
  • Thermonuclear fusion
  • Atomic Physics
DEF

Electromagnetic micro-instability which can arise in a magnetic mirror configuration when the plasma particle energy component perpendicular to the magnetic field is greater than the longitudinal component. [Definition standardized by ISO. ]

OBS

mirror instability: term standardized by ISO.

French

Domaine(s)
  • Transformation de l'énergie
  • Fusion thermonucléaire
  • Physique atomique
DEF

Micro-instabilité électromagnétique qui se produit dans une configuration magnétique à miroir lorsque la composante perpendiculaire au champ magnétique de l'énergie des particules du plasma est supérieure à la composante longitudinale. [Définition normalisée par l'ISO.]

OBS

Les particules se concentrent dans le plan médian entre les deux miroirs magnétiques. Il s'ensuit une expansion des lignes de force due à la pression du plasma dans ce plan, ce qui a pour effet d'augmenter le rapport de miroir et d'entraîner un nouveau renforcement de la concentration des particules dans le plan médian. Pour une énergie suffisamment grande, l'expansion du champ croît rapidement et le plasma devient instable.

OBS

instabilité miroir : terme normalisé par l'ISO.

Spanish

Save record 17

Record 18 1999-02-23

English

Subject field(s)
  • Photography
DEF

Optical viewfinder in which the subject area is outlined by a bright frame produced by, e. g. reflecting a white frame on to a semi reflecting mirror in the optical path of the finder. The frame line may show parallax correction marks, field of view for two or more focal length lenses etc.

French

Domaine(s)
  • Photographie
DEF

Viseur à champ large dans lequel un trait lumineux qui épouse la forme d'un cadre délimite le champ enregistré.

Spanish

Save record 18

Record 19 1997-01-29

English

Subject field(s)
  • Coins and Bank Notes
  • Numismatics
  • Coining
DEF

Said of a deep mirrored proof or prooflike that shows a stark contrast between the deep mirror(black) of the field and the frosted(white) cameo devices.

OBS

See related term: cameo contrast.

French

Domaine(s)
  • Pièces de monnaie et billets de banque
  • Numismatique
  • Monnayage

Spanish

Save record 19

Record 20 1997-01-29

English

Subject field(s)
  • Coins and Bank Notes
  • Numismatics
  • Coining
DEF

A prooflike coin in which the polished mirror finish is evident in both field and devices, except for the lettering, the date, and mint mark. Because of the lack of contrast, brilliant prooflike coins will not usually appear to be as deeply mirrored as cameo prooflikes.

OBS

See related terms: prooflike (noun), mirror depth, cameo contrast.

French

Domaine(s)
  • Pièces de monnaie et billets de banque
  • Numismatique
  • Monnayage

Spanish

Save record 20

Record 21 1997-01-29

English

Subject field(s)
  • Coins and Bank Notes
  • Numismatics
  • Coining
OBS

An unofficial numismatic term used to describe the reflective fields of proofs and prooflikes. Mirror depth can be measured by holding printed matter in front of a coin and increasing the distance between the two. If the printing is reflected in the field but is not clear at a distance of under one inch, the coin is semi-prooflike; if clearly reflected, that is readable, at a distance of one to four inches, the coin is prooflike and has a deep mirror; similarly at four to eight inches, it is very deep, and ultra deep beyond eight inches.

OBS

See related term: cameo contrast.

French

Domaine(s)
  • Pièces de monnaie et billets de banque
  • Numismatique
  • Monnayage

Spanish

Save record 21

Record 22 1993-01-20

English

Subject field(s)
  • Optics
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.

OBS

for use on moving platforms causing vibrations.

French

Domaine(s)
  • Optique
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.

Spanish

Save record 22

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