[Federal Register Volume 72, Number 133 (Thursday, July 12, 2007)]
[Notices]
[Page 38070]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 07-3395]


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DEPARTMENT OF DEFENSE

Department of the Army


Availability for Non-Exclusive, Exclusive, or Partially Exclusive 
Licensing of U.S. Patent Concerning a Real-Time Imaging 
Spectropolarimeter Based on an Optical Modulator

AGENCY: Department of the Army, DoD.

ACTION: Notice.

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SUMMARY: In accordance with 37 CFR 404.6 and 404.7, announcement is 
made of the availability for licensing of the invention set forth in 
U.S. Patent No. 7,023,546 entitled ``A Real-Time Imaging 
Spectropolarimeter Based on an Optical Modulator,'' issued on April 4, 
2006. The United States Government, as represented by the Secretary of 
the Army, has rights in this invention.

ADDRESSES: Office of Research and Technology Applications, SDMC-RDTC-
TDL (Ms. Susan D. McRae), Bldg. 5220, Von Braun Complex, Redstone 
Arsenal, AL 35898.

FOR FURTHER INFORMATION CONTACT: Ms. Joan Gilsdorf, Patent Attorney, 
email: [email protected], (256) 955-3213 or Ms. Susan D. 
McRae, Office of Research and Technology Applications, e-mail: 
[email protected]; (256) 955-1501.

SUPPLEMENTARY INFORMATION: The invention pertains to measuring the 
state of polarization and the spectral content of each picture element 
(pixel) of a target scene in real time. An imaging spectropolarimenter 
includes an objective optic for receiving an electromagnetic signal and 
a modulator for modulating the electromagnetic signal. The amplitude of 
each frequency component of the resulting modulated electromagnetic 
signal is a function of the particular polarization state of each 
frequency component of the electromagnetic signal. A linear polarizer 
passes a single polarization of the modulated electromagnetic signal to 
a tunable filter, which is tunable through a frequency spectrum. The 
tunable filter outputs a plurality of electromagnetic signal samples at 
predetermined frequency increments. A focal plane array receives each 
electromagnetic signal sample and outputs a spectrum signal, and a 
processor applies Fourier transformation to the spectrum signal to 
obtain at least one Stokes polarization vector component for each pixel 
within the scene.

Branda S. Bowen,
Army Federal Register Liaison Officer.
[FR Doc. 07-3395 Filed 7-11-07; 8:45 am]
BILLING CODE 3710-08-M