Maximum angle of incidence formed by a ray of light as it passes from a dense to a less dense medium, e.g., from glass to air, where the critical angle is about 42 degrees. When the critical angle is exceeded, all the light reflects back to the denser of the two media.
(Generally identified as .) The minimum angle of incidence for which total internal reflection will occur at an interface between two particular media. When light strikes an interface with an angle of incidence equal to the critical angle, the angle of refraction equals 90 degrees. For any larger angle of incidence, the angle of refraction is not defined (since its sine becomes greater than 1.0, according to Snell's Law), and no light can pass over the interface. Applying Snell's Law gives the following expression for the critical angle of an interface between medium 1 and medium 2: sin = For the critical angle to be defined, the medium (1) through which the light is initially traveling must have a greater index of refraction than the medium (2) on the other side of the interface. (In the image to the right, 1equals the critical angle since the angle of refraction is 90 degrees). The critical angle and total internal reflection are covered on this page (and the next one) of this module.
The smallest angle from the fiber axis at which a ray may be totally reflected at the core/cladding interface.
The first angel of the incident sound wave that generates a refracted wave that travels along the incident surface. The first angle that results in a surface following longitudinal wave is known as the 1st critical angle and the first angle that results in surface following shear wave is known as the 2nd critical angle.(Basic Science/sound/interference/discussion010.htm)
the angle of incidence for a light ray, below which total internal reflection occurs.
The angle of incidence at which total internal reflection occurs. At lower angles, the light is refracted through the cladding and lost. Due to the fact that the angle of reflection equals the angle of incidence, total internal reflection assures that the wave will be propagated down the length of the fiber.
the incidence angle corresponding to a 90 degree angle of refraction
That angle beyond which all incident light is reflected, without escaping from the stone. Ideal cut diamonds use these angles to ensure maximum reflectivity or brilliance.
That limiting angle of incidence in the optically denser medium that results in an angle of refraction of 90o.
The angle at the interface between core and cladding where a guided ray in the core undergoes total internal reflection.
the smallest angle of incidence for which light is totally reflected
The angle in a gemâ€(tm)s pavilion facets beyond which total reflection occurs. This angle varies with gem species and is very important to gem cutters wishing to fashion brilliant stones.
The least angle of incidence of a ray of light passing from a dense to a less-dense medium, for which the angle of refraction is 90°.
The angle of incidence of light measured from the normal (90%) beyond which Total Internal Reflection will occur. From diamond to air, this is a very low figure of 24.4°.
The smallest angle of incidence that will produce total internal reflection.
the smallest angle of incidence at which total internal reflection occurs; c =sin-1(n2/n1), where n2 and n1 are the refractive indices of two materials at the interface and n2 has the higher refractive material.
The minimum angle at which a stone's pavilion facets can be cut to allow the light entering a gem to be reflected back out of the stone's crown, making the gem brilliant, instead of windowed. The proper critical angle varies, depending on a gem's refractive index.
a unique angle of incidence that results in a refracted angle of 90°. This only happens when light passes into a more optically dense medium.
The smallest incident radiation angle at which total internal reflection occurs. This angle is defined using Snell's law, setting the sine of the refraction angle of the lower index material equal to one.
The largest angle measured from the normal at which light can escape from and optically dense substance, and the smallest angle to the normal at which light is totally reflected within the dense substance.
The smallest angle at which a meridional ray may be totally reflected within a fibre at the core-cladding interface. When light propagates in a homogeneous medium of relatively high refractive index (n) onto an interface with a homogenous material of lower index (n).
The maximum angle at which radio waves can be transmitted and still be refracted back to earth.
In geometric optics, at a refractive boundary, the smallest angle of incidence at which total internal reflection occurs.
The maximum angle from the central axis of a fiber optic cable at which light can be confined within the core.
For two given media, the smallest angle of incidence at which total internal reflection occurs.