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Numerical aperture
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- Параметр оптического волокна, определяемый соотношением коэффициентов преломления сердцевины и оболочки. числовая апертура определяет максимально допустимый угол входа световых лучей в волокно, при котором обеспечивается эффект полного внутреннего отражения.
- Относительная величина, описывающая способность оптического волокна или устройства абсорбировать (воспринимать) пучок лучей света
- A number that defines the light gathering ability of a specific fiber. the
- A number that defines the light gathering ability of a specific fiber. the numerical aperture is equal to the sine of the maximum acceptance angle. 26 / 43 o
- A measure of a lens’ light collecting power. n.a. = n sin ? n = index of refraction of the medium in which the lens is located ?= ? collection angle
- Sine of the maximum angle of an incident beam of some optical device, or the sine of the acceptance angle of a waveguide or fiber
- Числовая апертура
- A measure of a lens’s ability to gather light
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Числовая апертура, русский
Произведение синуса апертурного угла на показатель преломления.
Цифровая апертура, русский
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Aperture, английский
- The light gathering part of a lens. the size of the aperture is controlled by the iris. aperture size is expressed as an "f" number. the lower the "f" number the greater the amount of light gathered by the lens.
- Апертура, диаметр отверстия объектива
- Открытие объектива, которая контролирует количество света, достигающее поверхности матрици устройства. размер апертуры контролируется регулировкой диафрагмы.
- In television optics, it is the effective diameter of the lens that controls the amount of light reaching the photoconductive or photo emitting image pickup sensor.
- The opening of the lens that controls the amount of light reaching the surface of the pickup device. the size of the aperture is controlled by the iris adjustment.
- The opening of a lens that controls the amount of light reaching the surface of the
- The lens opening formed by the iris diaphragm inside the lens.
- A cross section of the antenna exposed to the satellite signal.
- The opening of a lens that controls the amount of light reaching the surface of the pickup device. the size of the aperture is controlled by the iris adjustment. by increasing the f-stop number (f/1.4, f/1.8, f/2.8, etc.) less light is permitted to pass to the pickup device.
- An opening in an optical system that limits the amount of light passing through the system.
- A small opening through which the electromagnetic radiation passes.
- The adjustable opening—or f-stop—of a lens determines how much light passes through the lens on its way to the film plane, or nowadays, to the surface of the camera`s imaging sensor. “faster” lenses have wider apertures, which in turn allow for faster shutter speeds. the wider the aperture is set, the shallower the depth of field will be in the resulting image.
- The opening of a lens, the size of which is controlled by a diaphragm. the term is commonly used to designate f-stops, such as f/4, f/5.6 etc., which are actually arrived at by dividing the focal length of the lens by the diameter of the aperture. thus, f/11 on a 110mm focal length lens means the opening is 10mm. the wider the opening, the lower the f-number, the more light is let through the lens. each step in aperture represents a halving or doubling of light. thus, f/8 allows in half as much light as f/5.6, and twice as much light as f/11.
- The variable opening in the lens through which light passes to the film or digital sensor. measured in f-stops. i like to compare it to your pupil which opens and closes to allow more or less light to enter your eye depending on the brightness level of the room. learn more about aperture and how to use it here.
- The lens opening that allows more, or less light onto the sensor formed by a diaphragm inside the actual lens.
- The opening in an ophthalmic frame front into which the lens is inserted. aperture dimensions (in millimeters) do not include the depth of the lens grove.
- A hole
- Апертура
- In astronomy. the opening of a telescope tube next the object-glass, through which the rays of light and image of the object are conveyed to the eye. it is
- Отверстие; проём (в стене)
- A small, circular opening inside the lens that can change in diameter to control the amount of light reaching the camera’s sensor as a picture is taken. the aperture diameter is expressed in f-stops; the lower the number, the larger the aperture.
- In photography, the diameter of the aperture expressed in terms of the focal length of the camera lens. the greater the f-number, the less light reaches the film and the more in focus the objects in the foreground and the background will be. for example, with an f-number = 16 the objects in the far background will be in focus. whereas, with an fnumber = 2 the background will be blurry (while foreground objects are in focus).
- Perpendicular distance between adjacent rock walls of a discontinuity,
Aperture, английский
A measure of the width of the opening allowing light to enter a camera. (aka: f-stop)
Aperture, английский
Aperture (1), английский
Aperture (2)(3), английский
Aperture (4), английский
Aperture (light and camera), английский
The camera, projector, or printer opening that controls the size and proportions of the recorded image - the frame. see: aspect ratio. the area from which light is emitted from a fixture is also an aperture and the size, among other factors, influences the quality of the light.
Aperture (апертура), английский
Отверстие объектива, контролирующее количество света, достигающее поверхности фотоприемника. размер апертуры контролируется установкой диафрагмы. чем больше f-число (f/1.4, f/1.8, r/2.8 и т.д.), тем меньше света достигает фотоприемника.
Aperture angle, английский
Aperture area, английский
Aperture card, английский
Апертурная карта
Aperture circuit, английский
Aperture correction, английский
- Compensation for the loss in sharpness of detail because of the finite dimensions of the image elements or the dot-pitch of the monitor.
- Camera signal processing function which adjusts the enhancement of edges of objects in a picture.
- Апертурная коррекция
Aperture distribution, английский
Aperture effect, английский
Aperture error, английский
Aperture grid, английский
Апертурная сетка; апертурная решетка
Aperture grille, английский
Апертурная решетка
Aperture hologram, английский
Aperture illumination, английский
Aperture mask, английский
Преломления, русский
Максимально, русский
Допустимый, русский
Допустимый , возможный, предполагать
Относительная, русский
Способность, русский
- Успешная стратегия выполнения некоторого задания. стратегия последовательность мыслей и действий для получения конкретного результата.
- Способность, дарование, дар, призвание, умение, ловкость, жилка, струнка, талант, гений; даровитость, талантливость, восприимчивость, переимчивость; годность, дееспособность, работоспособность, кредитоспособность, правоспособность. недюжинные способности.
- Определяются как такие индивидуально-психологические особенности субъекта, кои выражают его готовность к овладению некоими видами деятельности и их успешному выполнению, являются условием их успешного выполнения. под ними понимается высокий уровень интегр
- Определяются как такие индивидуально-психологические особенности субъекта, кои выражают его готовность к овладению некоими видами деятельности и их успешному выполнению, являются условием их успешного выполнения. под ними понимается высокий уровень интеграции и генерализации психических процессов, свойств, отношений, действий и их систем, отвечающих требованиям деятельности. включают в себя как отдельные знания, умения и навыки, так и готовность к обучению новым способам и приемам деятельности.
- Ability
Устройства, русский
Абсорбировать, русский
Воспринимать, русский
Воспринимать, впитать, всосать, заразиться чем, проникаться, пропитаться, усвоить что. ученье не идет (не лезет) ему в голову, не далось ему ученье. ср. понимать. это перешло к нему в плоть и кровь. он эти понятия всосал с молоком матери. , заражаться
Acceptance, английский
- Акцепт:
- Приёмка (работ, материалов) ~ of work приёмка (выполненных) работ
- Contractual agreement instigated when the drawee of a time draft "accepts" the draft by writing the word "accepted" thereon. the drawee assumes responsibility as the acceptor and for payment at maturity. see: letter of credit and banker`s acceptance.
- Акцепт
- An offeree’s consent to enter into a contract and be bound by the terms of the offer.
- In uk railway signalling terms, `acceptance` means the permission given by a signalman for a train to enter the section of line he controls.
Collecting, английский
Связывание; компоновка; подбор
Refraction, английский
- The tendency of wave crests to become parallel to bottom contours as waves move into shallower waters. this effect is caused by the shoaling process which slows down waves in shallower waters.
- The change of direction or speed of light as it passes from one medium to another.
- Преломление, рефракция
- Process by which the direction of a radiation is changed as a result of changes in its velocity of propagation.
- The change of direction of propagation of any wave, such as an electromagnetic wave, when it passes from one medium to another in which the wave velocity is different. the bending of incident rays as they pass from one medium to another (e.g., air to glass).
- The change of the propagation direction when a wave comes from one medium into another one
- The directional shift or "bending" of light rays as they leave one density medium and enter a different one. or why your legs are short in water when viewed from the air.
- The bending of light as it passes between materials of different refractive index.
- 1. a change of direction of light rays as they enter a medium such as the eye 2. the measurement of the angle at which the light rays bend, as a test to see if someone needs to wear glasses
- A test to determine the best prescription to correct a refractive error (myopia, hyperopia, astigmatism).
- The change in direction of a light ray or a sound ray in passing from one medium to another. refectory
- Рефракция
- An inflection of the rays of light: that property of the atmosphere which bends the rays of light in their passage to the eye from a different density, and causes the altitude of heavenly bodies to appear greater than it really is, especially near the horizon. (see terrestrial refraction.)
- A wave phenomenon involving change of direction or bending. when a wave of any kind— light, sound, sonar, radar, etc.—passes between materials of different density, its behavior changes as it exits the old medium. and encounters the new one. there is reflection off the boundary and transmission into the new medium. the transmitted wave undergoes refraction when it approaches the boundary obliquely.
- The bending of light as it passes through a diamond or gemstone.
- Bending of light waves, which occurs when a light wave passes from one medium to another
- Change in direction of an acoustic wave as the ultrasonic beam passes from one medium into another having different acoustic speeds. a change in both direction and mode occurs at acute angles of incidence. at small angles of incidence, the original mode and a converted mode may exist simultaneously in the second medium.
- Reorientation of radiation’s path by the medium through which it passes.
- Deflection of a wave due to a change in its speed as it passes from one material to another. see also refractometer.
- Change in direction of an acoustic wave as the ultrasonic beam passes from one medium into another having different acoustic speeds. a change in both direction and mode occurs at acute angles of incidence. at small angles of incidence, the original mode and a converted mode may exist simultaneously in the second medium.7
Collection, английский
- The accumulation of precipitation into surface and underground areas, including lakes, rivers, and aquifers.
- Прием средств, инкассо, сбор задолженности по кредитам
- Сбор; собирание; коллекция
- A container for organizing clips.
- A customer’s assemblage of digital media, including music, videos, pictures, games, and apps.
- A set of resources in the configuration manager hierarchy.
- A set of thematically related apps, games, music tracks, videos, or other items available for purchase or download in the store. a thematic group of editorially chosen apps and games for merchandising or marketing purposes.
- A type of specialized class in the .net framework for data storage and retrieval. these classes provide support for stacks, queues, lists, and hash tables. most collection classes implement the same interfaces, and these interfaces may be inherited to create new collection classes that fit more specialized data storage needs.
- An export format that maintains a group of images that is generated at export.
- An object that contains a set of related objects. an object’s position in the collection can change whenever a change occurs in the collection; therefore, the position of any specific object in a collection may vary.
- Automatic grouping of user’s photos and videos based on time and place.
- The presentation of a negotiable instrument for payment, or the conversion of any accounts receivable into cash.
- Экзамены в конце семестра в оксфорде
- Инкассо
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Powersum (ps) acr, английский
Параметр, характеризующий превышение уровня сигнала над уровнем двунаправленных наводок от всех пар. позволяет оценить качество двунаправленной приемопередачи по всем витым парам. измеряется в децибелах (дб).
Twisted pair, английский
- Пара изолированных проводников, скрученная с определенным шагом. для уменьшения наводок в многопарных кабелях каждая пара имеет разный шаг скрутки.
- Скрученная пара медных проводов. самый распространенный тип кабеля для подключения телефонов, компьютеров и терминалов к офисной цифровой телефонной станции (pbx), поддерживающей скорость передачи данных до 64 кбит/с. скручивание применяется с целью умень
- A pair of wires used in transmission circuits and twisted about one another to minimize coupling with other circuits. utp - unshielded twisted pair.
- Two copper wires twisted to cancel their own radio frequency interference to reduce noise on the circuit.
- The two copper wires used in traditional telephone wiring.
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