Polarizer apparatus for producing a generally polarized beam of

Details Polarizer apparatus for producing a generally polarized beam of Polarizer apparatus for producing a generally polarized beam of

1998-05-14

2000-08-22

Shafer, Ricky D.

Optical: systems and elements

Polarization without modulation

Polarization variation over surface of the medium

359487, 359495, 359496, 359497, G02B 530, G02B 2728

Patent

active

061081310

ABSTRACT:
A polarizing device has an arrangement of generally parallel elements disposed in an unpolarized source light beam for transmitting polarizations perpendicular to the elements and reflecting polarizations parallel to the elements. The elements may be disposed at substantially any incidence angle and may reflect the reflected beam at substantially any angle. The elements may be disposed on a substrate or embedded in a substrate. The elements may be disposed in a curved layer. The substrate may also have a curved surface. A polarizer apparatus may also have a mirror or the like for redirecting or recapturing the transmitted or reflected beam so they have similar directions or are directed to a common area. The device may also have a wave plate or the like for changing the polarization of the transmitted or reflected beams so they have the same polarization.

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Li Li and J. A. Dobrowolski, "Visible broadband, wide-angle, thin-film multilayer polarizing beam splitter," Applied Optics May 1, 1996 pp 2221-2225.

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