Jan Hanna Trs Grinberg

US Patent:

6404397, Jun 11, 2002

Filed:

Aug 12, 2000

Appl. No.:

09/529466

Inventors:

Jan Grinberg - Los Angeles CA
Robin Harvey - Thousand Oaks CA
Franklin A. Dolezal - Reseda CA

Assignee:

Raytheon Company - Lexington MS

International Classification:

H01Q 1906

US Classification:

343753, 343700 MS

Abstract:

The system ( ) includes a first mechanism ( ) for receiving electromagnetic energy of a first wavelength from the scene ( ) and providing electromagnetic energy of a second wavelength shorter than the first wavelength. A second mechanism ( ) measures variations of the electromagnetic energy of the second wavelength over a predetermined area. The system is a millimeter wave imaging system ( ). The first mechanism ( ) includes a lens ( ) having an index of refraction substantially greater than. The lens ( ) is opaque to infrared electromagnetic energy and made of alumina, plastic, or other material having a relatively high index of refraction. The second mechanism ( ) includes and array of bolometers ( ) positioned parallel to an output aperture ( ) of the lens and within a distance of the output aperture ( ) that is much smaller than the second wavelength. A video controller ( ), a computer ( ), process video signals output from the array of bolometers ( ) to yield an image, which is displayed on a display ( ).

US Patent:

6441368, Aug 27, 2002

Filed:

Oct 23, 2001

Appl. No.:

10/000591

Inventors:

Jan Grinberg - Los Angeles CA
Michael D. Jack - Goleta CA

Assignee:

Raytheon Company - Lexington MA

International Classification:

H01J 502

US Classification:

250239, 250214, 250216

Abstract:

A method and apparatus for protecting a bolometer antenna imaging array from out of band electromagnetic energy is disclosed. Protective pads are disposed upon a window in an optical system forming a millimeter wave image on an array of bolometer antenna sensors. The protective pads are effectively opaque to infrared and visible emissions and are aligned to shade the bolometer portion of the bolometer antennas from infrared and visible emissions, while leaving the antenna portion of each sensor in the array exposed to intercept the millimeter wave energy incident upon them.

US Patent:

6741762, May 25, 2004

Filed:

Dec 5, 2001

Appl. No.:

10/010401

Inventors:

Jan Grinberg - Los Angeles CA
Harold R. Fetterman - Santa Monica CA
Joseph Michael - Los Angeles CA

Assignee:

Pacific Wave Industries, Inc. - El Segundo CA

International Classification:

G02F 1035

US Classification:

385 2, 385131, 359245, 359254

Abstract:

An electro-optical modulator and a method for biasing a Mach-Zehnder modulator. The inventive modulator includes a layer of material at least partially transparent to electromagnetic energy. A first conductive layer is disposed on a first surface of the layer of at least partially transparent material. A second conductive layer is disposed on a second surface of the layer of at least partially transparent material. A layer of insulating material is disposed on the second conductive layer and a third conductive layer is disposed on the layer of insulating material. In the illustrative application, the modulator is a Mach-Zehnder modulator. A biasing potential is applied to the second conductive layer of the modulator and a modulating voltage is applied across the first and the third conductive layers.

US Patent:

59298197, Jul 27, 1999

Filed:

Dec 17, 1996

Appl. No.:

8/767756

Inventors:

Jan Grinberg - Los Angeles CA

Assignee:

Hughes Electronics Corporation - El Segundo CA

International Classification:

H01Q 1906

US Classification:

343754

Abstract:

A low profile receiving and/or transmitting antenna includes an array of lenses that focuses millimeter wave or other radiation onto a plurality of conventional patch antenna elements. The lenses and antenna elements are physically configured so that radiation at a tuning wavelength impinging on the antenna at a particular angle of incidence is collected by the lenses and focused onto the antenna elements in-phase. Two rotatable prisms may be disposed above the lenses to alter the angle of incidence of incoming or outgoing radiation to match the particular angle of incidence.

US Patent:

47281740, Mar 1, 1988

Filed:

Nov 6, 1986

Appl. No.:

6/927580

Inventors:

Jan Grinberg - Los Angeles CA
Nobuo J. Koda - Vista CA
Phillip G. Reif - Chatsworth CA
William P. Bleha - Carlsbad CA
Murray S. Welkowsky - Chatsworth CA
Arno G. Ledebuhr - Plesanton CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

G02F 113

US Classification:

350334

Abstract:

An electron beam addressed crystal light valve (LCLV) produces an AC voltage across a liquid crystal layer from a single polarity electron beam, and exhibits very high resolution. A mirror and a thin layer of partially conductive material are deposited on a support membrane on the electron beam side of the liquid crystal. The partially conductive layer is divided into a series of pixel elements by a conductive matrix which faces the electron beam. Electrons from the beam are absorbed by the partially conductive layer to establish a negative voltage across the liquid crystal, and then flow out to the conductive matrix to produce an AC voltage prior to the next electron beam scan. The conductive matrix is connected in circuit with a transparent electrode which provides a voltage reference on the readout side of the liquid crystal. The elements of the device are designed with electrical parameters that produce a discharge rate from the partially conductive layer fast enough to complete an AC cycle between successive electron beam scans, but slow enough for the liquid crystal to respond and produce an image.

US Patent:

45077266, Mar 26, 1985

Filed:

Jan 26, 1982

Appl. No.:

6/342630

Inventors:

Jan Grinberg - Los Angeles CA
Robert D. Etchells - Topanga CA
Graham R. Nudd - Los Angeles CA
Siegfried Hansen - Los Angeles CA

Assignee:

Hughes Aircraft Company - El Segundo CA

International Classification:

G06F 1516

US Classification:

364200

Abstract:

The Array Processor of the present invention is comprised of a plurality of modular Elemental Processors, the modules being of a number of different functional types. These modules are associated so that the Elemental Processors are architecturally parallel to one another. The principal flow of data within the Array Processor, based on the simultaneous transfer of data words within the Elemental Processors, is thereby correspondingly parallel. The modules are also architecturally associated as functional planes that lie transverse to the Elemental Processors. Each functional plane is thereby comprised of an array of modules that are each otherwise associated with a separate Elemental Processor. Further, the modules of a given functional plane are of a single functional type. This allows the data of a two-dimensionally structured data set, present within the Array Processor, to be processed identically and in parallel by a common logical operation as provided and performed by a functional plane.

US Patent:

47470690, May 24, 1988

Filed:

Jul 2, 1987

Appl. No.:

7/070083

Inventors:

Jan Grinberg - Los Angeles CA
Bernard H. Soffer - Pacific Palisades CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

G06G 900

US Classification:

364807

Abstract:

An optical data processing system employing a programmable optical data processor for processing an optical data beam comprising a plurality of zero, one and two-dimensional modulators for spatially modulating the optical data beam, the modulators being interconnected such that lenses are not necessary to accomplish the focusless transfer of the optical data beam between the modulators. The plurality of modulators are controlled so as to permit the programmable processing of the optical data beam. The optical data processor realized is physically solid and compact and is readily capable of performing a wide variety of optical computations.

US Patent:

48079782, Feb 28, 1989

Filed:

Sep 10, 1987

Appl. No.:

7/096093

Inventors:

Jan Grinberg - Los Angeles CA
Ronald T. Smith - Redondo Beach CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

G02B 532
G02F 113
G03H 118
H04N 912

US Classification:

350 373

Abstract:

A system and method are described for achieving a high efficiency, full color display using color sensitive lenses such as holographic lenses. A lens assembly is composed of discrete lens elements (1, 2, 3) which are sensitive to different wavelengths bands of light. Each lens element (1, 2, 3) focuses input light within its waveband onto a corresponding target area, and generally transmits input light outside of its waveband. A separate target area (R, G, B) is provided for each lens element, whereby incoming light is divided into its constituent colors. The separate color stripes (R, G, B) may then be operated upon to produce a desired display. For incoming light which is to be divided into n different wavebands and directed onto separate target areas each having an area A, the area of each lens element is approximately nA, and each lens overlaps the next adjacent lens by an area approxmately equal to (n-1)A. By generally transmitting rather than absorbing light outside the band of each lens element, the assembly achieves a high degree of both efficiency and resolution. Specific applications to various types of flat-panel displays and light valves are disclosed, as well as preferred fabrication techniques for the holographic lenses.