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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7245070 | Flat display A flat display includes a front glass plate, substrate, cathode, gate electrode, a phosphor screen and metal-backed film, and matrix-like spacer. The front glass plate is at least partly transparent. The substrate is arranged to oppose the front glass plate through ... | 07/17/2007 |
| 7177081 | High contrast grating light valve type device A grating light valve has with a plurality of spaced reflective ribbons are spatially arranged over a substrate with reflective surfaces. The grating light valve is configured to optimized the conditions for constructive and destructive interference with an incident... | 02/13/2007 |
| 7079093 | Organic light emitting diodes display An organic light emitting diodes display device includes a number of data lines, scan lines, and cathode electrodes. These scan lines are perpendicular to the data lines to form a number of pixels, each of which possess a pixel area respectively. All the pixels area... | 07/18/2006 |
| 7068372 | MEMS interferometer-based reconfigurable optical add-and-drop multiplexor The interferometer comprises a beam splitter, a mirror and a phase modulator. The beam splitter splits a signal into a first portion and a second portion. The mirror reflects the first portion. The first portion includes an optical path length, which is fixed. The p... | 06/27/2006 |
| 7057819 | High contrast tilting ribbon blazed grating The light modulator includes elongated elements and a support structure coupled to the elongated elements. Each element includes one or more lengthwise slits within an active optical area, and a light reflective planar surface with the light reflective planar surfac... | 06/06/2006 |
| 7054515 | Diffractive light modulator-based dynamic equalizer with integrated spectral monitor An integrated device of the present invention comprises free-space optics, a bi-directional multiplexor/de-multiplexor, a diffractive light modulator, a beam splitter, an optical performance monitor, and a controller. The free-space optics collimate, transform and i... | 05/30/2006 |
| 7049164 | Microelectronic mechanical system and methods The current invention provides for encapsulated release structures, intermediates thereof and methods for their fabrication. The multi-layer structure has a capping layer, that preferably comprises silicon oxide and/or silicon nitride, and which is formed over an et... | 05/23/2006 |
| 7042611 | Pre-deflected bias ribbons A modulator for and a method of modulating an incident beam of light including means for supporting a plurality of active elements and a plurality of bias elements, each active and bias element including a light reflective planar surface with the light reflective pl... | 05/09/2006 |
| 7027202 | Silicon substrate as a light modulator sacrificial layer An optical MEM device is fabricated with a patterned device layer formed on a silicon wafer. Preferably, the patterned device layer is patterned with plurality of ribbons and/or access trenches. The central portion of the ribbon is released from the silicon wafer us... | 04/11/2006 |
| 6956995 | Optical communication arrangement An arrangement for optical communication comprises an optical coupler, an opto-electronic board, and an optical fiber. The optical fiber comprises a first refraction surface, a second refraction surface, and an internal reflector. The first refraction surface has a ... | 10/18/2005 |
| 6947613 | Wavelength selective switch and equalizer A device comprising a light modulator including a plurality of elements wherein each element is selectively operable such that the plurality of elements are dynamically configurable to combine selected ones of a plurality of grating periods such that selected portio... | 09/20/2005 |
| 6934070 | Chirped optical MEM device A light modulator comprises a series of ribbons divided by a series of gaps. Sequences of consecutive ribbons and gaps are grouped together to form a plurality of pixels that are configured to process a respective plurality of wavelengths. The spacing from center-li... | 08/23/2005 |
| 6927891 | Tilt-able grating plane for improved crosstalk in 1×N blaze switches A light modulator includes elongated elements arranged parallel to each other. Each elongated element includes a light reflective planar surface with the light reflective planar surfaces configured in a first grating plane. A support structure is coupled to the elon... | 08/09/2005 |
| 6928207 | Apparatus for selectively blocking WDM channels An apparatus for selective blocking WDM channels comprises a light modulator, a diffraction grating, and a transform lens. The light modulator comprises an array of pixels. Each pixel of the light modulator is selectively operable to direct light into a first mode a... | 08/09/2005 |
| 6922272 | Method and apparatus for leveling thermal stress variations in multi-layer MEMS devices A MEMS device such as a grating light valve™ light modulator is athermalized such that the force required to deflect the movable portion of the MEMS device remains constant over a range of temperatures. In MEMS embodiments directed to a grating light valve™ ligh... | 07/26/2005 |
| 6908201 | Micro-support structures A MEM device in accordance with the invention comprises one or more movable micro-structures which are preferably ribbon structures or cantilever structures. The ribbon structures or cantilever structures are preferably coupled to a substrate structure through one o... | 06/21/2005 |
| 6870312 | Organic field emission device A patterned field emission device fabricated using conducting or semiconducting organic materials is described. ... | 03/22/2005 |
| 6762540 | One-piece tab assembly for a cathode cup of an X-ray imaging machine A cathode assembly (43) for a computed tomography scanning system (10) is provided. The cathode assembly (43) includes a one-piece tab assembly (52) for simple and relatively quick installation on a cathode cup (44). In one embodim... | 07/13/2004 |
| 6756729 | Flat panel display and method of fabricating same A flat panel display includes a faceplate, a backplate combined with the faceplate to form a vacuum fight cell, and a light emission unit placed within the cell to emit light from the cell. The backplate has a plurality of electron emission sources. A frame is mount... | 06/29/2004 |
| 6611094 | Double-faced vacuum fluorescent display device and method for driving same A simple and slim double-faced vacuum fluorescent display device has no grid, thereby lowing the power consumption and fabrication cost thereof. Anode electrodes on one of the front plate and the back plate function as grids for anode electrodes on the ot... | 08/26/2003 |
| 5783900 | Large-area electron irradiator with improved electron injection A broad-beam high energy electron accelerator has an electron injection section arranged for increased current density with greater uniformity and higher transmission through the foil exit window. A plurality of cathode rods are disposed in a transverse p... | 07/21/1998 |
| 5760417 | Semiconductor electron emission device In a semiconductor electron emission device for causing an avalanche breakdown by applying a reverse bias voltage to a Schottky barrier junction between a metallic material or metallic compound material and a p-type semiconductor, and externally emitting ... | 06/02/1998 |
| 5679960 | Compact display device A device for emitting electrons, comprising a substrate, an insulating film formed on a surface of the substrate and having a recess, an emitter electrode formed on the insulating film and having an edge portion located at the recess, the edge portion of ... | 10/21/1997 |
| 5629716 | Luminescent panel for color video display and its driving system, and a color video display apparatus utilizing the same. A plurality of filaments are stretched in parallel on a rear plate, and an insulating plate is provided so as to cover the filaments. In the insulating plate, a plurality of through-holes are formed along the longitudinal direction of the respective filam... | 05/13/1997 |
| 5300857 | Flat image display device with filamentary cathode support structure An image display device displays an image based on visible fluorescent radiation caused by electron beams emitted from a plurality of parallel spaced filamentary cathodes that extend over a substrate. A pair of support bars fixed to opposite sides of the ... | 04/05/1994 |
| 5272419 | Flat visible display device and method of forming a picture A flat, visible display device includes a backing plate and electrode, cathode wires extending parallel thereto, a face plate with a phosphorescent screen, an anode electrode, and an address plate with first and second addressing electrodes arranged in a ... | 12/21/1993 |
| 5126628 | Flat panel color display A flat display includes a front panel having a fluorescent screen on its rear side, a rear panel defining a flat space with the front panel, linear filament cathodes arranged close to the rear panel, and an address electrode plate having a multiplicity of... | 06/30/1992 |
| 4994708 | Cold cathode device A cold cathode device wherein a cold cathode and an anode face each other with an electron transit path intermediated therebetween, and one or more control electrodes structurally insulated from the said cathode and the anode, are provided exposing to the... | 02/19/1991 |
| 4794306 | Flat picture-reproducing device In a flat picture-reproducing device having a phosphor-coated faceplate (1) and a tray-shaped rear housing (2), a cathode formed by a periodic array of heating wires (7) is provided. This heating-wire array is followed by layers of focusing wires (8) and ... | 12/27/1988 |
| 4745324 | High power switch tube with Faraday cage cavity anode A high-power switch tube is shown constructed from a plurality of electron guns each gun having a cathode and an anode. Between the cathode and anode is mounted a shadow grid closest to the cathode beyond which is mounted a control grid, a screen grid, an... | 05/17/1988 |
| 4719388 | Flat electron control device utilizing a uniform space-charge cloud of free electrons as a virtual cathode A flat visual display device is disclosed herein and includes a flat face plate having a front face and an opposite back face and electrically positive means on the latter which, as a result of the impingement of the electrons thereon, provides a visual i... | 01/12/1988 |
| 4659964 | Display tube A display tube comprising in an evacuated envelope (1) an electron gun system (6) for generating and focusing by means of a focusing lens at least two electron beams (28 to 35) on a display screen (5), which electron beams are deflected by deflection mean... | 04/21/1987 |
| H216 | Method for and product of electron emissive layer and multibeam CRT thereby An encapsulated planar cathode structure is formed for a vacuum tube. A multibeam cathode ray tube is obtained by heating in the CRT such a structure with a plurality of separated electron emissive layers to remove the encapsulation material. Positive pho... | 02/03/1987 |
| 4631452 | Apparatus and method for generating a plurality of electric discharges An electric discharge apparatus, for example a gas laser or discharge lamp, includes first and second electrodes defining a first discharge path and third and fourth electrodes defining a second discharge path alongside the first. A respective impedance i... | 12/23/1986 |
| 4551648 | Line cathode heater and support structure for a flat panel display device A heater and support structure for a line cathode includes heater electrodes and an S-shaped cathode support member arranged between the heater electrodes. The heater electrodes and the S-shaped support member have a higher resistance than the cathode and... | 11/05/1985 |
| 4527090 | Thyratron capable of reverse conduction The invention provides a laser arrangement including in its discharge circuit a switching thyratron which is capable of conduction normally in one direction and protectively in the reverse direction. The thyratron has an anode formed as a hollow body whic... | 07/02/1985 |
| 4499405 | Hot cathode for broad beam electron gun An improved broad beam electron gun having a hot cathode assembly which is comprised of cathode means for generating a substantially hemispherical space-charge distribution, the cathode means including electron emitting structures having principal electro... | 02/12/1985 |
| 4469982 | Electron-beam tube A electron-beam tube comprises a cathode (2) made as individual tapes (6) disposed throughout the length of the tube, whose surfaces are the emitting portions of the cathode (2). Each tape (6) of the cathode (2) is provided with a near-cathode focusing el... | 09/04/1984 |
| 4410832 | EBS Device with cold-cathode Apparatus and method are described for fabricating a long life cold cathode lectron beam semiconductor device (EBS). Fabrication is given of a vacuum tube structure capable of sustaining sufficiently high vacuum over extended time to prevent poisoning of t... | 10/18/1983 |
