Optical equivalents of fiber optic face plates using reactive li

Details Optical equivalents of fiber optic face plates using reactive li Optical equivalents of fiber optic face plates using reactive li

1996-12-19

1998-03-10

Sikes, William L.

Liquid crystal cells, elements and systems

Liquid crystal optical element

Beam dividing switch formed from liquid crystal cell

385120, 385123, G02F 113, G02B 604, G02B 616

Patent

active

057267308

ABSTRACT:
Methods for making plates which have columnar features approximately in the direction of light propagation which are capable of total internal reflection, a controllable numeric aperture (NA) at input and output surfaces, rotational azimuthal averaging and translation of the object plane from a back surface of the plate to a front surface of the plate and are optical equivalent of a FOFP. These plates are made from a range of materials including a variety of monomer or polymer networks.
The resultant plates contain adjacent areas with differing refractive indices which result in a substrate containing a plurality of cylindrical features whose boundaries are defined by a discontinuity of refractive indices wherein the index of refraction within the cylindrical features is greater than the index of refraction at the boundaries and external to the cylindrical features.

REFERENCES:
patent: 4721352 (1988-01-01), Sorin et al.
patent: 4893907 (1990-01-01), Mallinson
patent: 5317429 (1994-05-01), Mochizuki et al.
patent: 5361320 (1994-11-01), Liu et al.
patent: 5589101 (1996-12-01), Khoo

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