Michael Gertsenshteyn

US Patent:

7231017, Jun 12, 2007

Filed:

Jul 27, 2005

Appl. No.:

11/191095

Inventors:

Michael Gertsenshteyn - Torrance CA, US
Thomas Forrester - Westminster CA, US
Tomasz Jannson - Torrance CA, US
Kang Lee - Woodland Hills CA, US
Gajendra Savant - Rolling Hills Estates CA, US

Assignee:

Physical Optics Corporation - Torrance CA

International Classification:

G01N 23/203
G21K 1/06

US Classification:

378 87, 378 84, 378 86, 378149, 2505051

Abstract:

A Lobster Eye X-ray Imaging System based on a unique Lobster Eye (LE) structure, X-ray generator, scintillator-based detector and cooled CCD (or Intensified CCD) for real-time, safe, staring Compton backscatter X-ray detection of objects hidden under ground, in containers, behind walls, bulkheads etc. In contrast to existing scanning pencil beam systems, Lobster Eye X-Ray Imaging System's true focusing X-ray optics simultaneously acquire ballistic Compton backscattering photons (CBPs) from an entire scene irradiated by a wide-open cone beam from one or more X-ray generators. The Lobster Eye X-ray Imaging System collects (focuses) thousands of times more backscattered hard X-rays in the range from 40 to 120 keV (or wavelength λ=0. 31 to 0. 1 Å) than current backscatter imaging sensors (BISs), giving high sensitivity and signal-to-noise ratio (SNR) and penetration through ground, metal walls etc. The collection efficiency of Lobster Eye X-ray Imaging System is optimized to reduce emitted X-ray power and miniaturize the device.

US Patent:

7781739, Aug 24, 2010

Filed:

Mar 13, 2009

Appl. No.:

12/403639

Inventors:

Tomasz Jannson - Torrance CA, US
Ranjit Pradhan - Torrance CA, US
Michael Gertsenshteyn - Torrance CA, US
Victor Grubsky - Porter Ranch CA, US
Igor Marienko - Redondo Beach CA, US
Gennady Medvedkin - Torrance CA, US
Wondwosen Mengesha - Torrance CA, US
Volodymyr Romanov - Torrance CA, US
Yunping Yang - Torrance CA, US

Assignee:

Physical Optics Corporation - Torrance CA

International Classification:

G01T 1/185

US Classification:

25037001, 250389, 2503361

Abstract:

A quantum-imaging system for detecting photons, including short-wavelength (

US Patent:

8471205, Jun 25, 2013

Filed:

Jun 27, 2012

Appl. No.:

13/507426

Inventors:

Michael Gertsenshteyn - Lexington MA, US

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH

International Classification:

G01J 5/10

US Classification:

250332, 25033905

Abstract:

A hybrid solid state imaging focal plane array (FPA) for night vision systems achieves a high dynamic range from deeply overcast starlight to full daylight by interleaving non-avalanche photodiode (NAP) pixels with APD pixels in a single imaging plane controlled by a common readout circuit. The APD pixels provide high performance at low light levels, while the NAP pixels provide unsaturated images in full daylight. The APD pixels can be Discrete. In low light the readout circuit can disable the NAP pixels and interpolate the NAP pixels using the APD signals. In daylight the readout circuit can do the opposite. The FPA can be digitally fused with sensors in a separate plane such as InGaAs APD's that detect wavelengths outside of the visible band. The NAP pixels can outnumber the APD pixels, for example by three-to-one. The APD's can be silicon for visible light, or InGaAs for SWIR light.

US Patent:

20150145950, May 28, 2015

Filed:

Mar 27, 2014

Appl. No.:

14/404715

Inventors:

- Nashua NH, US
Stephen F. Sagan - Lexington MA, US
Michael Gertsenshteyn - Lexington MA, US

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Nashua

International Classification:

H04N 5/262
H04N 5/232

US Classification:

348 36

Abstract:

A system and method for creating an image is presented. The system includes a first camera, a second camera, and a fusion processor. The first camera has a small field-of-view (FOV) and an optical line of sight (LOS). The second camera has a large FOV that is larger than the small FOV and the second camera has an optical LOS. The first camera and second camera are mounted so that the optical LOS of the first camera is parallel to the optical LOS of the second camera. The fusion processor fuses a second image captured by the second camera with a first image captured by the first camera. The fused image has better resolution in a fused portion of the fused image than in unfused portion of the fused image.