angle of incidence Hear it!

angle of incidence Definition

angle of incidence

noun

  1. the angle that a light ray or electromagnetic wave striking a surface makes with a line perpendicular to the reflecting surface
  2. Chiefly Brit. angle of attack
  3. Aeron. a permanent angle between the chord of an airfoil and the horizontally level fuselage

angle of incidence Telecom Definition
The angle at which an incoming light ray strikes a reflecting or refracting surface. The angle is measured at the boundary, or interface, between two media, such as the core and cladding of an optical fiber. The angle is measured from the normal, which is a right angle to the surface. See also cladding, core, critical angle, reflection, and refraction.