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Technical Data

Numerical Aperture

The numerical aperture of a light-conducting fiber depends on the refractive index of the core and cladding glass used. In single fibers where light beams intersect to optical axis the following equation can be used:

n0 = refractive index of the surrounding medium
n1 = refractive index of the fiber core
n2 = refractive index of the fiber cladding
α0 = critical angle to the optical axis

All light beams which strike the perpendicular polished end of a fiber within a defined incident angle are transmitted along the length of the fiber.

SCHOTT offers fibers with a wide range of numerical aperture, covering most applications.

industrial_fiber_optic_components_e_0904_new.pdf Industrial fiber optic components and LED solutions
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Lighting and Imaging
SCHOTT North America Inc.

122 Charlton Street
Southbridge, MA 01550
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