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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Birdwell; William A.
Address:
Portland, OR
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
7009581 Dynamic diffractive optical transform March 7, 2006
A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a portion thereof. The electric
6774871 Dynamic diffractive optical transform August 10, 2004
A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a portion thereof. The electric
6437762 Dynamic diffractive optical transform August 20, 2002
A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a portion thereof. The electric
5877876 Diffractive optical switch with polarizing beam splitters March 2, 1999
A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a portion thereof. The electric










 
 
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