|
|
|
|
|
|
|
|
|
Fresnel reflection
| Fiber Optic Glossary |
- Reflection of a portion of the incident light at a planar interface between connectors, mechanical splices, or two homogeneous media having different refractive indices
- Френелевское отражение
|
|
Fresnel, английский
A thinner, lighter, "stepped" version of a plano-convex lens. also, a spot light with such a lens. tip: silent "s," sil vous plait.
Fresnel equations, английский
Equations for the amplitude coefficients of transmission and reflection at the interface between two transparent homogeneous media
Fresnel field, английский
See near field.
Fresnel fringes, английский
Дифракционные полосы френеля (класс дифракционных полос, образующихся в тех случаях, когда источник освещения и проекционный экран находятся на конечном расстоянии от края полосы дифракции)
Fresnel lens, английский
- Numerous small lenses assembled to form a single large lens of short focal length. developed in the early 19th century by french physicist a.j. fresnel (pronounced freynel) originally used in searchlights, it was later adapted for the mirror landing aid.
- An optical device that focuses light like a magnifying glass; concentric rings are faced at slightly different angles so that light falling on any ring is focused to the same point.
- An optical device that focuses light like a magnifying glass; concentric rings
Fresnel lens optical landing system, английский
Оптическая система посадки с линзами френеля
Fresnel number, английский
A parameter determining the regime of diffraction effects
Fresnel prism, английский
A series of narrow prisms molded into one piece of soft plastic that has the effect of one prism. these prisms are cut and applied directly to the lens surface. they are an alternative when prism is required and a standard lens can not be ground or when lenses will be too thick and heavy, if surfaced. in addition, they can be removed without remaking a lens when a patient’s prism correction is undergoing several changes over a period of time.
Fresnel reflection loss, английский
Reflection losses at the ends of fibers caused by differences in the refractive index between glass and air. the maximum reflection caused by a perpendicular air-glass interface is about 4% or about -14 db.
Fresnel zone, английский
See near field.
Fresnel zone (ut), английский
Reflect, английский
- A gradient brush option that makes the gradient repeat in alternating reflections.
- To copy driver binaries, install services, and add registry keys for one or more drivers from a driver package onto a system, without the context of a specific device. a system can be booted from reflected drivers, however full device installation may still be required in order to enable full driver functionality.
Reflect prevention sheet, английский
Reflectance, английский
- The percentage of light that is reflected from an object. spectrophotometers measure an object's reflectance at various intervals along the visible spectrum to determine the object color's spectral curve. see spectral curve, spectral data.
- The ratio of light returned from a surface expressed as a percentage.
- Отражательная способность
- The percentage of light reflected from a component, such as a connector, splice, splitter, or wdm
- The ratio of the reflected flux to the flux incident on a surface. reflectance coefficient, reflectance factor
- Коэффициент отражения, отражательная способность
- Ratio of reflected wave energy to incident wave energy. also known as reflectivity.
Reflectance (or reflection factor), английский
Отражательная способность (или коэффициент отражения). отношение потока лучистой энергии (или света), отражаемой данной поверхностью, к потоку лучистой энергии (или света), падающему на эту поверхность.
Reflectance pattern, английский
A reflectance pattern is an observation whose attributes have been normalized so that their values add up to one. see also: ann, normalization.
Reflectance reflectivity, английский
The ratio of the reflected radiant power to the incident radiant power.
Reflectance. light-reflective glass, английский
Reflectancia, испанский
Reflectancia ., испанский
Reflection, английский
- The abrupt change in direction of a light beam at an interface between two dissimilar media that returns the beam into the medium where it originated, i.e., a mirror
- A light ray incident on an air to glass interface will have some of its energy redirected back toward its origin due to reflection at the interface.
- The return of radiant energy (incident light) by a surface, with no change in wavelength.
- The bouncing off of light which falls upon a surface.
- The change of direction which a ray of light, sound, or radiant heat undergoes when it strikes a surface; also
- 1. the image of somebody or something which is seen in a mirror or still water 2. the process of reflecting something, especially light, sound or heat 3. careful thought 4. a situation in which an anatomical structure bends back upon itself
- The process of obtaining information about assemblies and the types defined within them, and creating, invoking, and accessing type instances at run time.
- When light bounces back from a surface
- General term for the process by which the incident energy leaves a surface or medium from the incident side, without change in frequency. reflection is usually a combination of specular and diffuse reflection.2,6
- General term for the process by which the incident energy leaves a surface or medium from the incident side, without change in frequency. reflection is usually a combination of specular and diffuse reflection (iesna 1984). see also diffuse reflection; specular reflection.
- The act of thinking deeply about one`s actions, behaviour`s, and progress, often facilitated by a coach or mentor to promote self-awareness and learning.
Mechanical, английский
Homogeneous, английский
- Гомогенный, однородный номок уел nondirectional radio beacon resumed operation ненаправленный радиомаяк возобновил работу
- A однородный
- Гомогенный; однородный
- Exhibiting a high degree of homogeneity.
- The same or similar
- The same or similar description of a group whose members are all the same or similar (for example, people from the same background and heritage). opposite of heterogeneous host-country nationals
Refractive, английский
|
Microduct cable, английский
S are designed for high-density fiber counts in a small optical cable, normally between 5-16 mm
Physical contact (pc), английский
Refers to the endface polish of a ferrule. designed to lower reflections by changing the spherical or angle at the end of a ferrule and its internal fiber. variations include pc, super pc (spc), ultra pc (upc), and angled pc (apc)
|
|
|
|
|
|
|
