Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers
Patent
1995-12-26
1998-10-13
Dzierzynski, Paul M.
Optical: systems and elements
Polarization without modulation
By relatively adjustable superimposed or in series polarizers
359496, G02B 530
Patent
active
058221182
ABSTRACT:
A walk-off device comprising a birefringent or uniaxial material achieves increased spatial separation of the ordinary and extraordinary beams by using at least one face of the device for reflection. The two beams are folded and path length increased within the device; the folding increases the spatial separation of the beams when they exit from the device as compared to a device in which the beams are not folded. The reflection face is oriented either parallel or perpendicular to the optic axis of the material.
REFERENCES:
patent: 5212586 (1993-05-01), Van Delden
patent: 5631774 (1997-05-01), Yoshizawa
Dzierzynski Paul M.
Lucent Technologies - Inc.
Schuberg Darren E.
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