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Speed of light
| Глоссарий по теории волн |
- The speed at which electromagnetic radiation propagates in a vacuum; it is defined as 299 792 458 m/s (~186,000 miles/second).
- 2.998 x 108 meters per second measured in a vacuum
- Generally means the speed of light in a vacuum. it is about 1 foot per billionth of a second.
- Speed of all radiant energy, including light, is 2.997925 ? 108 m/s in vacuum (approximately 186 000 mi/s). in all transparent materials the speed is less and varies with the material’s index of refraction, which itself varies with wavelength.
- Speed of all radiant energy, including light, is 299 792 458 ? 108 m·s–1 in vacuum. in all materials the speed is less and varies with the material’s index of refraction, which itself varies with wavelength.2,6
- Speed of all radiant energy, including light, is 2.997 925 ? 108 m/s in vacuum (approximately 186 000 mi/s). in all transparent materials the speed is less and varies with the material’s index of refraction, which itself varies with wavelength (iesna 1984).
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Light, английский
- Space in a window sash for a single pane of glass. also, a pane of glass.
- Electromagnetic radiation in the spectral range detectable by the human eye (approx. 380 to 720nm).
- Light refers to a fragrance that’s not heavy – go figure!
- Electromagnetic radiation detectable by the eye, ranging in wavelength from about 400 to 750 nm.
- Свет; огонь; лампа 326
- Свет; огонь; лампа
- The region of the electromagnetic spectrum that can be perceived by human vision, designated by the visible spectrum and nominally covering the wavelength range of 400-770 nm. in optical communications, it includes the much broader portion of the electromagnetic spectrum that can be handled by the basic optical techniques used for the visible spectrum. this region is not clearly defined but may be considered to extend from the near-ultraviolet region of approximately 300 nm, through the visible region, and into the mid-infrared region to 30,000 nm
- Electro-magnetic radiation with wavelengths in the spectral bandwidth perceived by the human eye (ca. 400 - 700 nm).
- Usually refers to the visible spectrum. the range of electromagnetic radiation frequencies detected by the eye, or the wavelength range from about 400 to 700 nanometers. the term is sometimes used loosely to include radiation beyond visible spectrum limits.
- Electromagnetic energy defined as visible energy between 380 -780nm range.
- (1) the radiant energy which, after entering the eye, provides the initial stimulus for sight, (2) electromagnetic radiations visible to the human eye which gives rise to the sensation of vision by stimulating the rod and cone cells of the retina; absence of darkness.
- Свет, освещение, огон?к
- The energy that makes things bright and helps a person to see there’s not enough light in here to take a photo.
- Огонь судна или маяка
- Огонь (навигационный)
- [1] the correct name for a lighthouse. [2] the proper term for a navigation light. [3] the glass in a port or other opening in the hull, whether hinged or fixed.
- Глобальная гипертекстовая система для поддержки жизненного цикла по
- A generally non-sweet, non-cloying fragrance where the fresh note is predominant. often formulated as an eau fraiche or deodorant cologne for all-over body wear in warm climates or for sports.
- Свет. радиация (см. radiation), способная стимулировать орган зрения (видимое излучение) (вмо).
- Visible radiation; radiant energy that can excite the retina and produce a visual sensation; visible portion of the electromagnetic spectrum, from about 380 to 800 nm.
- Radiant energy that can excite the retina and produce a visual sensation. the visible portion of the electromagnetic spectrum extends from about 400 to 800 nm.2,6 lighting, back: placement of light source and image sensor on opposite sides of the test object, used when the silhouette of a feature is important. lighting, flash: see lighting, strobe. lighting, front: placement of light source and image sensor on the same side of the test object. lighting, strobe: lighting that flashes intermittently at a rate that may be adjusted and is often perceived as a flicker, used to image moving objects or still objects with potential movement. 312 visual testing lighting, structured: combining a light source with optical elements to form a line or sheet of light.
- Electromagnetic radiation that can excite the retina and produce a visual sensation. the visible portion of the electromagnetic spectrum extends from 400 to 760 nm.
- Electromagnetic radiation that falls within the human eye’s response range.
- Photopic vision.
Light, английский
Light & heavy, английский
A light fragrance is balanced toward the top notes. a heavy fragrance is balanced towards the bottom notes.
Light (adj), английский
Having a font weight that corresponds to a weight class value of 300 according to the opentype specification.
Light (crude) oil, английский
Легкая нефть. нефть с плотностью не более 0,855 г/куб.cм
Light (en) ing, английский
Освещение
Light - and - shade, английский
Light - gauge section, английский
Light - weight section, английский
Light activated silicon controlled rectifier, английский
Light actuated solid state plckoff, английский
Light adaptation, английский
Ability of the eye to adjust itself to an increase in the intensity of light.
Light adapted vision, английский
See photopic vision.
Light aggregate, английский
Light air, английский
- Beaufort force 1. sustained wind speed between 1 and 3 knots. ripples with the appearance of scales are formed, but without foam crests.
- Легкий ветер
- Force 1 on the beaufort scale (winds 1–3 knots = 1.15-.45 mph = 1.85–5.56 km/h).
Light airborne asw vehicle, английский
Легкий противолодочный вертолет или самолет
Light airborne attack vehicle, английский
Легкий штурмовик
Light airborne multipurpose (system), английский
Легкий многоцелевой вертолет «лэмп»
Light airborne multipurpose system, английский
Легкая авиационная многоцелевая система; легкий многоцелевой военный вертолет «лэмп»
Light aircraft binary information link, английский
Линия передачи данных в двоичном коде для легких самолетов
Light aircraft carrier, английский
Electromagnetic, английский
Approximately, английский
- Approx.
- Приблизительно
- Приблизительно, около
Transparent, английский
- An object or material that transmits both light and undiffused images. tip: try lighting a plain back-ground directly behind the object, not the object.
- Capable of transmitting light so that objects or images can be seen as if there were no intervening material.
- Общедоступная информация в вто присутствует принцип открытого обмена информацией, осуществляемый с целью осведомить всех членов о принимаемых решениях и вопросах, обсуждаемых на совещаниях и встречах маленьких групп
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
Wavelength, английский
- Light is made up of electromagnetic waves; wavelength is the crest (peak)-to-crest distance between two adjacent waves.
- Для оптических сетевых устройств длина волны светового потока составляет 850, 1300, 1310 и 1550 нм
- The optical term for frequency. fiber optics generally uses the 850 nm, 1300/1310 nm, 1550 nm and 1625 nm wavelengths for transmission purpose due to the marriage of performance with light sources, optical fibers, and optical detector technologies
- Distance in the direction of propagation of a periodic wave between two successive points at which the phase is the same. tel 203•377•8282 fax 203•378•2457 e-mail res_sales@oriel.com url www.oriel.com 9-17 polarization lenses optics prisms & filters beam splitters windows, substrates & mirrors properties of optical coatings optical materials
- The length of the light wave, usually measured from crest to crest, which determines its color. common units of measurement are the micrometer (micron), the nanometer, and the angstrom unit.
- The spatial period of a plane wave
- The distance between "waves" in the electromagnetic field, specified as angstroms or nanometers.
- The distance an electromagnetic wave travels in the time it takes to oscillate through a complete cycle. wavelengths of light are measured in nanometers (10-9 m) or micrometers (10-6m).
- The linear distance occupied by one complete cycle of vibration of an energy form from any given point to the next point characterized by the same phase.
- For light waves or sound waves, the distance between two successive points of a periodic wave in the direction of propagation, in which the oscillation has the same phase; the distance the wave travels in one period. for light waves three common units of wavelength are: micrometer, nanometer, and angstrom. wave molding, oundy molding, swelled chamfer, undulating molding, undy
- Длина волны wax 1. воск 2. парафин 3. пластичная глина way 1. путь; дорога 2. проход; переход 3. колея 4. направление, сторона 5. амер, расстояние
- The physical length between corresponding points of successive cycles of a wave. low frequencies have long wavelengths; high frequencies have short wavelengths.
- The distance between the crests of a wave in a radio signal, measured as the speed of light divided by the frequency in- hz.
- The distance between one peak of a wave and the next peak
- Light is measured by its wavelength (in nanometers) or frequency (in hertz). one wavelength. equals the distance between two successive wave crests.
- The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation.
- Distance between repeating values of a wave — for example, the distance from one peak to the next peak on a sine wave. wavelength is a fundamental descriptor when discussing wave behavior, system sensitivity, and diffraction effects.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave. wavelength is generally measured in nanometers when considering uv-a radiation (for example, 365 nm). compare frequency.
- Distance between repeating units of a wave. for example, the distance from one peak to the next peak.
- Distance needed in the propagation direction for a wave to go through a complete cycle.7,21
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Strain aging, английский
Aging induced by cold working.
Specular reflection, английский
- (lambertian surface) reflection from smooth surface in which angle of incidence is equal to angle of reflection. the surface radiance it is independent of the angle.
- A mirror-like reflection.
- When reflected waves and incident waves form equal angles at the reflecting surface.
- When reflected waves and incident waves form equal angles at the reflecting surface. compare diffuse reflection.
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