Numerical Aperture (NA) - Collimated holes, Inc.

Numerical Aperture (NA)

The Numerical Aperture of a fiber is defined as the sine of the half-angle of the light acceptance cone, relative to the fiber axis, in air.

CHI offers Numerical Apertures which range from 0.1 to 1.0. The values are determined by the core/cladding glass selection and defined by the glasses' refractive indices. This dependence is described by the following relationship,

where n = refractive index.

Fiber
Glass Drawing
Diameter
Fiber Geometries
Open Area Ratio (OAR)
Numerical Aperture (NA)
Glass Types
Multi-fiber
Image Conduits
Fiber Optic Face Plates
Image Remapping Devices
EMA
Optical Conduction