angle of incidence

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Related to Incident angle: index of refraction, critical angle, Grazing angle

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

angle of incidence

the angle at which an ultrasound beam hits the interface between two different types of tissues, such as the facing surfaces of bone and muscle. The angle is also affected by the difference in acoustic impedance of the different tissues.

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.

angle of incidence

the angle at which a body, object or vector is moving relative to another (e.g. a stationary surface or environmental factor such as wind), often prior to a collision. Example: when playing a snooker ball at a cushion, the angle between the ball's direction of travel and the cushion.
References in periodicals archive ?
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.
The wind tunnel setup also involved the installation of the temporary turn-table (See Figure 2) for varying the wind incident angle.
The incident field and the totally reflected field cancel out at the interface for an incident angle corresponding to the angle of the null in the pattern of the dipole.
Wu, "Dual-band terahertz metamaterial absorber with polarization insensitivity and wide incident angle," Progress In Electromagnetics Research, Vol.
When light falls normally at the disc, the half-width of the indicatrix of reflection is about 15[degrees], and when its incident angle is 10[degrees], the maximum amplitude is reduced by about 15% while the half-width increases to 18[degrees].
The ACR results due to the changing of the areaway plan area are presented in Figure 7 as a function of wind incident angle.
If the length of the pipe is L and the incident angle of the light ray with respect to the pipe is [theta], then the approximate number of reflections of the ray from the surface is
In our case, the incident angle is varied via the motion of the sample, and the total area of reflected light directions is covered by a number of fibers fixed in the space by a special way.
2 of EN12975-2:2006 Incident angle modifier IAM K1, transversal IAM at 50[degrees] 0.
Researchers can operate the software through a graphical user interface, keyboard arrow keys or the mouse wheel, making it easier to control the incident angle of each wavelength and adjust TIRF penetration depths.
I) Incident angle is set at 45[degrees]; reflection angles range from 0[degrees] to 75[degrees] at 15[degrees] increments; wavelengths are 390-730 nm at 10-nm increments.