ЧТО ОЗНАЧАЕТ СЛОВО SOLID ANGLE
Телесный угол
В геометрии телесный угол представляет собой двумерный угол в трехмерном пространстве, который объект обрывает в точке. Это показатель того, насколько большой объект выглядит наблюдателем, смотрящим с этой точки. В Международной системе единиц телесный угол выражается в безразмерной единице, называемой стерадиан. Небольшой объект поблизости может поднять тот же телесный угол, что и более крупный объект. Например, хотя Луна намного меньше Солнца, она также намного ближе к Земле. Поэтому, если смотреть с любой точки Земли, оба объекта имеют примерно одинаковый телесный угол, а также кажущийся размер. Это проявляется во время солнечного затмения.
Значение слова solid angle в словаре английский языка
Определение телесного угла в словаре - это геометрическая поверхность, состоящая из линий, происходящих из общей точки и проходящих через замкнутую кривую или многоугольник: измеряется в стерадианцах.
КНИГИ НА АНГЛИЙСКИЙ ЯЗЫКЕ, ИМЕЮЩЕЕ ОТНОШЕНИЕ К СЛОВУ «SOLID ANGLE»
Поиск случаев использования слова
solid angle в следующих библиографических источниках. Книги, относящиеся к слову
solid angle, и краткие выдержки из этих книг для получения представления о контексте использования этого слова в литературе на английский языке.
1
Introduction to Radiometry
A solid angle is the two-dimensional equivalent of a linear angle. It is the
projection of an area onto a unit sphere, as shown in Figure 2-2. The solid angle
is determined by the perimeter of the area. An equivalent definition of a solid
angle is the ...
8.2.2 The Solid Angle — General Definition To illustrate the concept of solid
angle, consider a point isotropic source at a certain distance from a detector as
shown in Fig. 8.3. Since the particles are emitted by the source with equal
probability ...
Timothy RJ Nicholson, Donald RJ Singer,
2014
3
Astronomy Methods: A Physical Approach to Astronomical ...
It is l/4ir the area of a sphere of unit radius. For small solid angles (<100 deg2 =
0.03 sr), the approximate solid angle in steradians is obtained simply by
calculating the area on the sky, in square radians, as if the sky were a flat piece of
paper.
The power emitted by an LED is proportional to the solid angle. Thus the power
coupled to an LED is proportional to the NA squared of the fiber in the small-
angle approximation. Exercise: Coupling efficiency of a fiber butt-coupled to an
LED.
5
Basic Electro-optics for Electrical Engineers
3.2 Solid Angle Solid angle is the quantity used to specify the range of pointing
directions in three-dimensional space that takes one from a point in space to a
surface. Solid angle is a dimensionless quantity, with units of steradian (sr).
6
Tools of Radio Astronomy
If the total spectral power, Pν in [W Hz−1] is fed into a lossless isotropic antenna,
this would transmit P power units per solid angle per Hertz. Then the total
radiated power at frequency ν is 4πPν In a realistic, but still lossless antenna, a
power ...
Thomas L. Wilson, Kristen Rohlfs, Susanne Hüttemeister,
2009
7
Physics of Solar Cells: From Basic Principles to Advanced ...
Since the photons do not collide with each other and maintain their direction, we
can find these photons by determining their density per solid angle at every
location inside the cavity and multiply the density per solid angle by the solid
angle ...
8
Photonics and Lasers: An Introduction
SOLID ANGLE The solid angle Q is the 2-D analog of the conventional l-D angle
0, as illustrated in Fig. A—l. Just as the angle 0 is defined as the distance along a
circle divided by the radius of that circle, so the solid angle Q is analogously ...
9
Practical Global Illumination with Irradiance Caching
We evaluate the integral numerically as a sum of incoming radiance values of the
pixels on the sampling plane, Lj,k, weighted by each pixel's solid angle, j,k, and
the corresponding cosine term, cosθ j,k: E ≈ N−1∑ N−1∑ k=0 j=0 L j,k j,k cosθ j
...
Jaroslav Krivanek, Pascal Gautron,
2009
The unit of solid angle defined in this way is called the steradian, abbreviated sr.
If the cone includes all possible directions, then since the area of the whole
sphere is 4nr2, the solid angle is 4n. That is, the solid angle corresponding to all
...
НОВОСТИ, В КОТОРЫХ ВСТРЕЧАЕТСЯ ТЕРМИН «SOLID ANGLE»
Здесь показано, как национальная и международная пресса использует термин
solid angle в контексте приведенных ниже новостных статей.
AWN Professional Spotlight: FMX 2014 – Framestore R&D Head …
Martin Preston discusses the use of the Arnold renderer from Solid Angle on 'Gravity,' and his role as head of research and development at Framestore. «Animation World Network, Май 15»
Astrological Starcast: Beginning April 23
However, there will be trends that can help you better maneuver or gain solid .... and is forming a solid angle of support to Mars, the planet governing will, and ... «Beach Reporter, Апр 15»
Television commercials use VFX to make creative customer pitches
All the rendering was done in Solid Angle's Arnold; compositing in The Foundry's Nuke. For the majority of the tracking, the group used Science-D-Visions' ... «Computer Graphics World, Апр 15»
The Rendering Equation
Since the unit sphere has area 4π, the solid angle of a surface can range from zero to 4π steradians; a surface completely surrounding P would have solid angle ... «GameDev.net, Мар 15»
Welcome to Peter Plantec's Entirely Biased Golden Pixie Awards
Arnold has been a Hollywood best-kept-secret render monster until the creators, Solid Angle, recently came out with commercial versions adapted for Maya, ... «Studio Daily, Окт 14»
Solid Angle's Arnold closely integrates with Houdini & Cinema 4D
MADRID/LONDON — Solid Angle (www.solidangle.com) is at SIGGRAPH with the latest version of its Arnold renderer, which is delivering significant speed ... «Computer Graphics World, Авг 14»
SIGGRAPH News Bytes: Dynamixyz, Solid Angle, Lightworks
+ Solid Angle will showcase its Arnold 4.2 renderer, which boasts significant speed gains over previous versions, and plug-ins for Houdini and Cinema 4D will ... «Animation Magazine, Июл 14»
Let Him Fly
To nail a good virtual camera angle for the all-CG shots, the crew often used a ..... the crew used The Foundry's Katana; for rendering, Solid Angle's Arnold. «Computer Graphics World, Июл 14»
Lighting a Monochromator
Half Angle and Solid Angle Values for Various F/# Instruments ... A small range of wavelengths leave the grating at the correct angle to pass through the exit slit. «AZoOptics.com, Апр 14»
Radiometric Measurements – Definitions of Basic Quantities
The geometric quantity of a solid angle Ω measures a portion of an observer's visual field (Figure 1). Assuming an observer is located at point P, his full visual ... «AZoOptics.com, Фев 14»