Polarizing element including layer having alternating areas of b

Details Polarizing element including layer having alternating areas of b Polarizing element including layer having alternating areas of b

1996-06-24

1999-05-04

Spyrou, Cassandra C.

Optical: systems and elements

Polarization without modulation

By relatively adjustable superimposed or in series polarizers

359487, 359495, 349 96, G02B 530

Patent

active

059009772

ABSTRACT:
Polarizing element having a first layer and a second layer. When an unpolarized light beam is incident on the element, the direction of at least one of the polarization components of the unpolarized beam will be influenced by the first layer. These polarization components have different directions of polarization. The second layer influences the direction of a polarized beam incident thereon. A polarization-rotating layer is present between the first layer and the second layer. An unpolarized beam can be substantially completely converted into a polarized beam having mainly the same direction of polarization.

REFERENCES:
patent: 4613207 (1986-09-01), Fergason
patent: 4733941 (1988-03-01), Broer et al.
patent: 5134516 (1992-07-01), Lehureau et al.
patent: 5188760 (1993-02-01), Hikmet et al.
patent: 5440424 (1995-08-01), Wu et al.
patent: 5570209 (1996-10-01), Usui et al.

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