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IMAGING SPEED [7 records]

Record 1 2015-01-30

English

Subject field(s)
  • Platemaking (Printing)

French

Domaine(s)
  • Clicherie (Imprimerie)
DEF

Temps requis pour insoler une plaque dans une résolution donnée.

Spanish

Save record 1

Record 2 2007-07-17

English

Subject field(s)
  • Reprography
  • Non-impact Printing
CONT

... the most suitable photoconductive imaging receptors for low... speed electrophotographic plain-paper copiers and laser printers have a double-layered configuration. Photogeneration of charge carriers(electron-hole pairs) takes place in a thin charge generation layer(CGL), typically 0. 5 µm thick, which is coated on a conductive substrate such as an aluminum drum.

French

Domaine(s)
  • Reprographie
  • Impression sans impact

Spanish

Save record 2

Record 3 2006-09-25

English

Subject field(s)
  • Platemaking (Printing)
  • Flexography (Printing)
CONT

Recently, the so-called "flexo CTP (Computer to Plate) method" has been developed. In this method, a thin, light absorption layer called "Black layer" is formed on the surface of a photosensitive resin plate, and the resultant resin plate is irradiated with a laser to ablate (evaporate) desired portions of the black layer to form a mask bearing an image (formed by the unablated portions of the black layer) on the resin plate directly without separately perparing a mask. Subsequently, the resultant resin plate is imagewise exposed to light through the mask, to thereby crosslink the exposed portions of the resin, followed by developing treatment in which the unexposed portions of the resin (i.e., uncrosslinked resin portions) are washed away with a developing liquid.

CONT

With this process [direct laser imaging] the electronically-generated image is scanned at speed to a photopolymer plate material that carrys a thin black mask layer on the surface.

French

Domaine(s)
  • Clicherie (Imprimerie)
  • Flexographie (Imprimerie)
DEF

Mince pellicule de couleur noire sensible au laser et déposée sur une plaque photopolymère flexo pour imageage direct.

CONT

À l'image de l'offset, l'insolation directe des plaques photopolymères dites numériques a fait son apparition en flexographie [...] La plaque vierge de photopolymère possède sur sa surface une couche noire (noir de carbone + liant polymère)_de 2 microns. L'image est gravée sur ce masque par un faisceau laser thermique IR [infrarouge] (Nd-YAG [néodyme-YAG] (064 nm). Après ablation des endroits définis comme zones image sur le fichier, les zones à réticuler sont directement accessibles aux UV [ultraviolet] et la suite du traitement redevient conventionnelle. La mise sous vide avec un film négatif n'est plus nécessaire et les sources parasites de diffusion de lumière disparaissent. La qualité du point de trame, donc de l'image, est bien supérieure.

OBS

couche noire; couche noire sensible au laser : termes et définition tirés du Vocabulaire de la flexographie de France Brodeur. Reproduction autorisée par l'Institut des communications graphiques du Québec.

Spanish

Save record 3

Record 4 2004-05-21

English

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

A scanning radiometer that measures microwave radiation in five wavelength bands and 10 channels to determine the wind, sea surface temperature and roughness, cloud water content, precipitation, snow cover and sea ice.

CONT

The scanning multichannel microwave radiometer(SMMR) is an imaging 5-frequency radiometer... It measures dual-polarized microwave radiances from the earth's atmosphere and surface, primarily for the purpose of deriving global and nearly all-weather measurements of sea surface temperature, wind speed, and atmospheric liquid water and water vapor.

OBS

This radiometer flew on Seasat (launched in June 1978) and Nimbus-7 (launched in October 1978).

OBS

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

Key term(s)
  • scanning multi-channel microwave radiometer
  • scanning multi-frequency microwave radiometer
  • scanning multichannel micro-wave radiometer
  • scanning multifrequency micro-wave radiometer

French

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

Radiomètre à balayage qui mesure le rayonnement en hyperfréquence dans cinq bandes de longueurs d'onde et 10 canaux pour déterminer le vent, la température de la surface de la mer et sa rugosité, la teneur en eau des nuages, la précipitation, le manteau nival et la glace de mer.

OBS

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

Spanish

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

Radiómetro de barrido que mide la radiación en microondas en cinco bandas de longitudes de onda y diez canales para determinar el viento, la temperatura de la superficie del mar y su rugosidad, el contenido de agua de las nubes, la precipitación, la cubierta de nieve y el hielo marino.

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 4

Record 5 2004-04-20

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
  • Weather Stations and Meteorological Instruments and Equipment
  • Remote Sensing
  • Flight Instruments and Equipment (Aeroindustry)
DEF

Instrument for measuring microwave radiation refracted by a non-smooth surface, such as the sea.

CONT

Instrumentation flown on Seasat included a radar altimeter, a microwave scatterometer for measuring surface wind speed and direction, a scanning multichannel microwave radiometer for sea surface temperature, a visible and infrared radiometer, and the first spaceborne synthetic aperture radar.

CONT

Microwave scatterometer... measures the microwave scattering or reflective properties of surfaces. It is also non-imaging, and is specifically designed to measure backscattering. This requires that it detect more detailed spectral information than imaging radar but has reduced spatial resolution and aerial coverage. The surface is scanned in two or more directions, usually by multiple sensors. The primary application of microwave scatterometers is to measure wind vectors(that is, speed and direction) over the ocean surface. This is based on the principle of ocean ’roughness’ being caused by wind and resulting in a characteristic surface pattern which may be identified by its scattering properties.

Key term(s)
  • micro-wave scatterometer
  • micro wave scatterometer

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
  • Stations, instruments et équipements météorologiques
  • Télédétection
  • Instruments et équipement de bord (Constructions aéronautiques)
CONT

Diffusomètre micro-ondes pour la mesure de la vitesse et de la direction des vents.

CONT

Cette carte établie à partir des données du satellite américain QuikSCAT défilant à 800 km d'altitude grâce à l'instrument SeaWinds, diffusiomètre micro-onde à haute fréquences, qui permet d'effectuer des observations à travers les nuages et de mesurer la vitesse moyenne des vents à 10 mètres au-dessus du niveau de l'océan.

Key term(s)
  • diffusomètre à hyperfréquences
  • diffusiomètre à micro-ondes
  • diffusomètre microondes
  • diffusiomètre microondes

Spanish

Campo(s) temático(s)
  • Guía radárica, radioguía y radiogoniometría
  • Estaciones, instrumentos y equipos meteorológicos
  • Teledetección
  • Instrumentos y equipo de vuelo (Industria aeronáutica)
DEF

Instrumento para medir la radiación de microondas refractada por una superficie no uniforme, tal como el mar.

Save record 5

Record 6 2003-01-29

English

Subject field(s)
  • Reprography
CONT

The digital features of the [copier] DL355 are nothing without the impressive copying features that have historically been the hallmark of Pitney Bowes copiers. A combination of high quality imaging capabilities, speed, paper capacity and finishing options minimizes the time associated with jobs, maximizes user productivity and subsequently lowers overall cost.

OBS

A feature offered on some copier models.

French

Domaine(s)
  • Reprographie
CONT

Lexmark X810 MFP offre aux services d'entreprise [en plus des ] fonctions courantes de télécopie et de numérisation [...] des option de finition comme l'agrafage, la perforation et le tri décalé.

OBS

Option offerte sur certains modèles de copieurs.

Spanish

Save record 6

Record 7 2002-10-23

English

Subject field(s)
  • Platemaking (Printing)
CONT

An innovative, patented imaging system [for thermal platesetter] sends laser energy through the GLV [Grating Light Valve] where it is carefully controlled and calibrated. The GLV's micro-shutters modulate the laser light to produce a swath of beams that ensures an exceptionally fast writing speed at a relatively low... drum rotational speed-simplifying operation and ensuring long-term reliability.

French

Domaine(s)
  • Clicherie (Imprimerie)
CONT

Un système d'exposition [des plaques thermiques] novateur breveté transmet un faisceau laser à travers une membrane GLV [Grating Light Valve] où il est soigneusement contrôlé et calibré. Les micro-obturateurs de la membrane GLV modulent l'énergie laser afin de produire une série de faisceaux permettant une inscription exceptionnellement rapide à une vitesse de rotation du tambour relativement basse [...] d'où une simplification des opérations et la garantie d'une fiabilité à long terme.

Spanish

Save record 7

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