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
Farlex Partner Medical Dictionary © Farlex 2012

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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Optical properties ([[lambda].sub.max] and [[lambda].sub.cald]) of a locked CC-CBP-2VP film at different incident angles. [theta] (degree) 90 70 60 50 40 [[lambda].sub.max] (nm) 572 541 521 496 473 [[lambda].sub.cald] (nm) 563 547 527 501 472 TABLE 2.
In other words, the cutoff wavelength should be stabilized at a fixed wavelength (In our design, the cut-off wavelength selected is 2 [micro]m) without excessive bias when the incident angle changes, ensuring that the incident light can be absorbed completely.
Caption: Figure 6: Reflected phase responses versus element rotation angle under multiple incident angles at 12.5 GHz.
In addition, the partial feature results under uniform and spatially varying seismic ground motions, that is, the lateral [d.sub.max] at Z = 100 m, 300 m, 500 m, 700 m, and 900 m with incident angles of 0[degrees], 30[degrees], 45[degrees], 60[degrees], and 90[degrees] can be found in Tables 3 and 4.
[theta] and [theta]' represent the incident angle of incident light L and L in a vertical plane.
The range of pressure varies from zero to the limit pressure (return flow) and by varying the incident angle from 0[degrees] to 15[degrees] with 5[degrees] increment.
In Figure 6, we present retrieved results of the real part of effective index for both polarizations at 30-degree incident angle. The plane of incidence is the y-z plane, and the incident angle is defined by the angle between the z-axis and the wave vector k.
Here [[epsilon].sub.0] is the permittivity of vacuum space, [[mu].sub.0] is the permeability of vacuum space, [omega] is angle frequency, [[epsilon].sub.r1] and [[epsilon].sub.r2] are relative permittivity, [[sigma].sub.1] and [[sigma].sub.2] are electrical conductivity, [[theta].sub.i] is incident angle, and [[theta].sub.t] is refraction angle.
[12,13] reported that the incident angle had a significant influence on the performance of square cylinders.
As the illuminance source incident angle increases, the interference filter characteristics will change.
This happens because at larger incident angles, more and more of the incident rays beams start to escape from the RTP in an undesirable direction.