angle of incidence

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an·gle of in·ci·dence

1. the angle that a ray entering a refracting medium makes with a line drawn perpendicular to the surface of this medium;
2. the angle that a ray striking a reflecting surface makes with a line perpendicular to this surface.
Synonym(s): incident angle

an·gle of in·ci·dence

(anggĕl insi-dĕns)
1. Angle that a ray entering a refracting medium makes with a line drawn perpendicular to the surface of this medium;
2. Angle that a ray striking a reflecting surface makes with a line perpendicular to this surface.
Synonym(s): incident angle.
References in periodicals archive ?
It is found that, in both structures, as the angle of incidence increases, the width and the depth of the zero-[epsilon] gap increase, while for the zero-[bar.n] gap and for the angles of incidence greater than 40[degrees] for the ternary and 50[degrees] for the binary structures, the zero- [bar.n] gap disappears.
During this work, however, we observed through simulation that the bandwidth of the resonances became broader and somewhat weaker when compensating for large angles of incidence, greater than 70[degrees] or so.
A comparison between [[tau].sub.bb] measurements, obtained with and without the IS, at various angles of incidence is shown in Table 2.
Figure 2a compares [d.sub.p] values calculated for a single internal reflection from both ZnSe and Ge internal reflection elements at two commonly used angles of incidence. It can be seen readily that the surface layer/coating thickness probed increases significantly towards lower wavenumber.
At large angles of incidence, eddies may curl around the sides of the blade with unpredictable effects.
The infrared light used is unaffected by ambient light conditions and enables readings to be taken at greater distances and angles of incidence than when using many other optical tachometers.
Back in 1886, Dessau (1886) reported on depositing thin films using evaporation onto substrates at various angles of incidence. Interesting and unexpected optical anisotropy were observed for these films deposited at non-normal angles of incidence.
A useful feature of the single solid wall is the ability to have fairly low reflections (below -10 dBi) in both polarizations up to very high angles of incidence (over 80 [Degrees]).
Arrays with G/L ratios of 1.2, 1.4 and 1.6 were tested for reflectivity at several angles of incidence. Higher G/L ratios are preferred for the S-band.
This MA could operate well at different angles of incidence for both transverse electric (TE) and transverse magnetic (TM) waves.
[[theta].sub.i], [[theta].sub.r] and [[theta].sub.t] are the angles of incidence, reflection and transmission with respect to the walls of layers, respectively.