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Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

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Class 313/501 - Light conversion


Subclass of Class 313 - Electric lamp and discharge devices
Definition: Subject matter including another luminescent material which
No. of patents: 398
Last issue date: 05/14/2013


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NumberTitleIssue Date
6201257Semiconductor X-ray photocathodes devices
An energy dispersive x-ray and gamma-ray photon counter is described. The counter uses a photon sensor which incorporates a unique photocathode called Advanced Semiconductor Emitter Technology for X-rays (ASET-X) as its critical element for converting the...
03/13/2001
6179449Multi-color semiconductor lamp and method of providing colored illumination
A multi-color semiconductor lamp includes a semiconductor light source activable so as to generate a light output, a dispersing prism and a lens. The prism has an input side located in front of the light source to receive the light output, and an output s...
01/30/2001
6165631Diode-addressed color display with lanthanoid phosphors
A diode-addressed color display comprising an UV-diode and a phosphor of the general formula LnL3 X2, wherein Ln=Eu3+, Tb3+, Tm3+, Dys3+, Sm3+, L=4-R-4'-benzophenone carboxylic acid, ...
12/26/2000
6137459Image display device having a planarized array of reduced surface roughness
Disclosed is a practicable, image display device comprising a color-changing array 2 of a plurality of light-shielding layers 21 and a plurality of color-changing layers 22, of which at least one is a fluorescent layer, as disposed in series on a light-tr...
10/24/2000
6051925Diode-addressed color display with molecular phosphor
A diode-addressed color display comprising an UV-diode and a phosphor of the general formula [Eu(diketonate)a Xb1 X'b2 ], wherein X=pyridine or a unidentate pyridine derivative and X'=2,2'-bipyridine or a 2,2'-bipyridyl de...
04/18/2000
6005257Transmission mode photocathode with multilayer active layer for night vision and method
An improved photocathode and image intensifier tube are disclosed along with a method for making both the tube and photocathode. The disclosed photocathode and image intensifier tube have an active layer comprising two or more sublayers. The first sublaye...
12/21/1999
5998925Light emitting device having a nitride compound semiconductor and a phosphor containing a garnet fluorescent material
The white light emitting diode comprising a light emitting component using a semiconductor as a light emitting layer and a phosphor which absorbs a part of light emitted by the light emitting component and emits light of wavelength different from that of ...
12/07/1999
5959401Light-emitting semiconductor device using group III nitride compound
A light-emitting semiconductor device consecutively includes a sapphire substrate, an AlN buffer layer, a silicon (Si) doped n+ -layer GaN, a Si-doped n-type GaN, a zinc (Zn) and Si-doped In0.20 Ga0.80 N emission layer, a ...
09/28/1999
5955834Light emitting devices utilizing high work function electrodes
In general terms the present invention includes light emitting polymeric materials and light emitting devices made therefrom. The present invention also includes light emitting devices incorporating light emitting polymeric materials of the present invent...
09/21/1999
5932965Electroluminescent device and a method for fabricating an electroluminescent device
For providing an electroluminescent device, a first electrode is formed on a substrate that is preferably transparent or translucent, and a first light-emitting layer made of polymeric material is formed on the first electrode and n the substrate. A secon...
08/03/1999
5929572Electroluminescent arrays layered to form a volumetric display
A solid state 3-D display comprises an array of voxels made of an electroinescent material arranged in a matrix of a transparent material. Transparent electrodes are formed in the matrix to form electrical connections to each voxel. The transparent elect...
07/27/1999
5874803Light emitting device with stack of OLEDS and phosphor downconverter
Monochromatic and multicolor light emitting devices which make use of phosphor layers to downconvert light emitted from organic light emitting materials into different, more desired colors. The light emitting devices of the present invention are used in a...
02/23/1999
5869929Multicolor luminescent device
A multicolor luminescent device comprising a color conversion material in which a plurality of shielding layers and a plurality of different color conversion layers are separately and repeatedly assembled on the same flat, alternating with each other, and...
02/09/1999
5814840Incandescent light energy conversion with reduced infrared emission
Energy conversion among heat or electricity and incandescent light is achieved, in the case of incandescent light emission, with the emission having reduced IR content, using a high band gap semiconductor element that is tailored in structure and in energ...
09/29/1998
5804833Advanced semiconductor emitter technology photocathodes
A detector to be used for detecting photons from the visible to far infrared spectrum is described. The detector uses unique photocathodes called Advanced Semiconductor Emitter Technology (ASET) as its critical element for converting the detected photons ...
09/08/1998
5747826Photoemitter electron tube, and photodetector
The present invention provides a photoemission device excellent in quantum efficiency of photoelectric conversion, a high-sensitive electron tube employing it, and a high-sensitive photodetecting apparatus. A photoemission device of the present invention ...
05/05/1998
5723871Process of emitting highly spin-polarized electron beam and semiconductor device therefor
A process of producing a highly spin-polarized electron beam, including the steps of applying a light energy to a semiconductor device comprising a first compound semiconductor layer having a first lattice constant and a second compound semiconductor laye...
03/03/1998
5663573Bipolar electroluminescent device
Light-emitting bipolar devices consist of a light-emitter formed from an electroluminescent organic light-emitting material in contact with an insulating material. The light emitter is in contact with two electrodes that are maintained in spaced apart rel...
09/02/1997
5652067Organic electroluminescent device
In an organic electroluminescent device including a substrate and formed thereon a multilayered structure successively having at least an anode layer, an organic electroluminescent layer and a cathode layer, a sealing layer having at least one compound se...
07/29/1997
5635307Thin-film electroluminescent element
A thin-film EL element having as a laminated luminescent composite a configuration comprising at least a first layer and a second layer wherein (1) the first layer comprises a compound having a lattice constant, before lamination, larger than that of a compoun...
06/03/1997
5591986Photoemitter electron tube and photodetector
The present invention provides a photoemission device excellent in quantum efficiency of photoelectric conversion, a high-sensitive electron tube employing it, and a high-sensitive photodetecting apparatus. A photoemission device of the present invention ...
01/07/1997
5409783Red-emitting organic electroluminescent device
Disclosed is a red-emitting organic electroluminescent device comprising in sequence an anode, an organic hole injecting and transporting zone, a doped luminescent zone, an electron transport zone and a cathode, characterized in that said doped luminescen...
04/25/1995
5405709White light emitting internal junction organic electroluminescent device
An internal junction organic electroluminescent device comprises, in sequence, an anode, an organic electroluminescent medium, and a cathode, the organic electroluminescent medium further comprising a hole injecting and transporting zone contiguous with t...
04/11/1995
5304815Electron emission elements
An electron emission element comprises a P-type semiconductor substrate and electrodes formed on both ends of the semiconductor substrate. A voltage is applied between said electrodes. The P-type semiconductor substrate is irradiated with light to emit th...
04/19/1994
5260625Color sequential illumination system
A color sequential illumination system, such as, for example, a backlighting system for a liquid crystal display (LCD), comprises lamps for emitting blue, red and green light. The red and green light is provided by lamps including fluorescent dyes having ...
11/09/1993
5226723Light emitting diode display
An improved light emitting diode display includes a printed circuit board, a reflector and one or more LED chips. The printed circuit board serves as a base to fix the LED chips and the reflector has an appropriate thickness, contains one or more bowl-lik...
07/13/1993
4907042Device for the multiplication of charge carriers by an avalanche phenomenon and application of the said device to photosensors, photocathodes and infrared viewing devices
A device for the multiplication of charge carriers of a given type by an avalanche phenomenon includes: a semiconductor material of homogeneous composition, placed in an electrical field. Perpendicular to the working field, plane and parallel layers which are ...
03/06/1990
4906894Photoelectron beam converting device and method of driving the same
A photoelectron beam converting device including a semiconductor substrate having a p-n junction formed between an n-type region and a p-type region and an opening portion formed on the side of the semiconductor substrate. An electron beam is generated by...
03/06/1990
4849672Method of producing electroluminescence at a P-N junction and electroluminescing lamp
A method of producing electroluminescence without a chemical reaction by the decay of the energy level of electrons from an excited state which results from collision of accelerated free electrons with ions in the oxide, the free electrons being accelerat...
07/18/1989
4620132Electron beam scannable LED display device
In a CRT display device the target comprises a multilayered semiconductor including a p-n junction and at least one current-blocking layer. The e-beam is locally absorbed in the current-blocking layer so as to open a narrow zone which allows charge to flo...
10/28/1986
4599537IR light emitting apparatus with visible detection means
An infrared light emitting element and an infrared/invisible conversion fluroescent substance are provided, and infrared rays to be generated from said infrared light emitting element are emitted outside, and simultaneously part of said infrared rays is i...
07/08/1986
4560901Light-emitting device having at least two semiconductor crystals
An electroluminescent device is provided with two semiconductor crystals, in each of which an electroluminescent junction is formed, which junctions can alternately be energized from an external current source. One of the semiconductor crystals is of the ...
12/24/1985
4554485Solid-state image display device
A solid-stage image display device is disclosed in which an electron injection region of high impurity density is formed on a surface of a semiconductor substrate of low impurity density, while a phosphor region of electron excitation type is formed on th...
11/19/1985
4195226Luminescent material and preparation and use thereof
Pentaphosphates of the formula XP5 O14, wherein X is a rare earth metal, respond to incident ionizing radiation by emitting secondary electromagnetic radiation which may be visible or may be made visible by doping with other rare ear...
03/25/1980
4127792Luminescent semiconductor display device including gate control electrodes
A monolithic semiconductor luminescent display device has p+ layers disposed in seven rows and five columns on one of the main faces of an n substrate to form discrete luminescent junctions between them, five anodes disposed on the p+
11/28/1978
3996540Indicating device for tuning apparatus
An apparatus for indicating a tuned frequency of a tuner of a radio or television receiver, said tuner comprising a tank circuit employing a voltage controlled variable capacitance diode as a circuit element, which diode is supplied in a reverse direction...
12/07/1976
3932881Electroluminescent device including dichroic and infrared reflecting components
A light source having an infrared-emitting diode and a luminescent material excitable in a step-like manner for converting the infrared radiation to visible rays comprises an optical cavity enclosing the luminescent material. A portion of the cavity wall ...
01/13/1976
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