Wide-band wave plate and a controlling method thereof

Details Wide-band wave plate and a controlling method thereof Wide-band wave plate and a controlling method thereof

2008-01-15

2008-01-15

Allen, Stephone B. (Department: 2872)

Optical: systems and elements

Polarization without modulation

Polarization variation over surface of the medium

C359S490020, C359S506000

Reexamination Certificate

active

07319558

ABSTRACT:
A wide-band wave plate having at least two wave plates, each of which has a microstructure to generate a phase difference, the microstructure having a cycle not shorter than 1
minof a shortest wavelength of light in use, wherein the two wave plates are arranged to face opposite with their main axes in non-parallel with each other, wherein nminis a refractive index of a wave plate material with respect to the shortest wavelength.

REFERENCES:
patent: 2003/0156325 (2003-08-01), Hoshi
patent: 63-155107 (1988-06-01), None
patent: 10-90521 (1998-04-01), None

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