Encyclopedia > Radiation angle

Article Content

Radiation angle

Radiation angle: In fiber optics, half the vertex angle[?] of the cone of light emitted at the exit face of an optical fiber.

Note: The cone boundary is usually defined (a) by the angle at which the far-field[?] irradiance[?] has decreased to a specified fraction of its maximum value or (b) as the cone within which there is a specified fraction of the total radiated power at any point in the far field[?].

Synonym output angle.

Source: from Federal Standard 1037C and from MIL-STD-188

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

North Lindenhurst, New York

... American, 0.20% Native American, 2.13% Asian, 0.05% Pacific Islander, 3.49% from other races, and 1.95% from two or more races. 11.66% of the population are Hispanic or ...