| Document |
Document Title |
|
WO/1994/013005A1 |
Luminescent screens, especially the output screens of image intensifier tubes used in radiology. The invention concerns, in particular, means for selecting the appropriate remanence according to the intended application. A luminescent sc...
|
|
WO/1994/011896A1 |
An image display which is light in weight and small in thickness, can be produced at a low cost, and moreover, can display an image free from non-uniformity of luminance throughout the whole screen. The display includes a linear hot cath...
|
|
WO/1994/010700A1 |
A matrix addressing screen with row/column contacts through the substrate. The screen consists of a flat matrix addressed screen in which conductive areas (9) are formed in a known manner through a rear substrate (1) in order to locate t...
|
|
WO/1994/006147A1 |
The invention can be used in the production of electron beam tubes. The fundamental problem addressed by the invention is that of enhancing the efficiency and power of electron beam tubes while reducing the quantity of X-rays emitted by ...
|
|
WO/1994/006148A1 |
A direct conversion X-ray photo-electron cathode has specially designed secondary emission layers which provide high efficiency, low noise, high speed and broad band X-ray photo detection. The X-ray photocathode (7, 8) is integrated with...
|
|
WO/1993/021651A1 |
A picture apparatus includes a vacuum envelope (30) which has a phosphor screen (5) and a plurality of electron gun assemblies (7) for emitting electron beams to the phosphor screen, and a deflection device (12) for deflecting the electr...
|
|
WO/1993/021650A1 |
A flat screen cathode ray tube display (10) is self-supporting. A multiplicity of supports extend from an addressing grid structure (35) to contact the inside surface of a face plate (12) between pixels. A back plate (16) is similarly su...
|
|
WO/1993/018536A1 |
A vertical microelectronic field emitter (10) includes a conductive top portion (15) and a resistive bottom portion (16) in an elongated column (12) which extends vertically from a horizontal substrate (11). An emitter electrode (17) may...
|
|
WO/1993/013514A1 |
An electric fluorescent device (EFD) (34) is used as the back light towards source for a black/white LCD (32). Where the EFD provides red, green and blue light, the LCD displays multi-color or full-color images. The EFD includes a number...
|
|
WO/1993/013540A1 |
A fluorescent display device of highly bright light emission adapted to a large-screen display. The device comprises a plurality of phosphor segments (13) to which a high voltage will be applied, a cathode (K), a plurality of control ele...
|
|
WO/1993/006616A1 |
A lighting device for image readout devices, whose quantity of light is large independent of its ambient temperature and which has a compact and simple structure. In the lighting device, within a sealed vacuum cavity (20), provided are c...
|
|
WO/1993/004867A1 |
A light source for fluorescence printers, wherein no adverse effect of the electric fields caused by the charge of electrons and the control electrodes opposed to each other is produced and the preciseness of electrode patterns is high. ...
|
|
WO/1993/002442A1 |
In a cathodoluminescent display device (100), spacer elements (106, 107, 108) are used to provide rigid mechanical support between the face (109) and back (110) plates when the chamber of the device is evacuated so that thin face and bac...
|
|
WO/1993/001612A1 |
A large area video camera is suitable for high energy imaging applications. The sensor-target of the camera tube is composed of TlBr or a two layer structure comprising CsI and a phototconductive layer of materials such as amorphous sili...
|
|
WO/1992/020087A1 |
Image source, for converting image data in the form of serial charges into a high-resolution imagewise light pattern, combines semiconductor charge-coupled devices for receiving the charges, associated small-scale field emission arrays f...
|
|
WO/1992/019005A1 |
A cold cathode (3) in the form of a solid thin film component is the basis for electron-optical terminal image devices. The thin-film structure consists of a base electrode (5), e.g. in the form of a bundle of parallel strips, an insulat...
|
|
WO/1992/016012A1 |
A light projecting device in which a plurality of light emissions can be simply controlled in a single unit. In this device, an electron emitting material (2) is formed on a base (1) via an insulation base (3), and the electron emitting ...
|
|
WO/1992/016011A1 |
A light projecting device in which cathode luminescence of a high luminance can occur even when current of a high current density is applied. In this device, an electron emission material (2), which is coated with a layer (14) capable of...
|
|
WO/1992/016013A1 |
A cathode luminescence device which is adjustable in luminance and is cheap and economical, and a phosphor powder which is used preferably for this cathode luminescence device. The device comprises a long linear cathode, an electron beam...
|
|
WO/1992/016006A1 |
An integrally controlled field emission device display (100, 110) employing planar field emission devices as controlling elements for non-planar field emission devices utilized for excitation of a cathodoluminescent layer is provided.
|
|
WO/1992/014257A1 |
The invention relates to an ultra fast camera for visualizing the intensity profile of a laser pulse. Said camera has a photocathode inside a vacuum housing, an extraction grid, focusing electrodes, deflection plates and a display screen...
|
|
WO/1992/009981A1 |
This is a dot-matrix device where a dot of the image is formed at each line/column crossover. A source emits electrons continuously in line with the columns, away from the image dots. In accordance with the signal it receives, a column e...
|
|
WO/1992/009109A1 |
A wafer of neutron transmutation doped silicon having a pn junction between extended opposite surfaces is formed with bevelled edges. A plurality of reverse biased signal contacts is disposed on one surface to provide an integrated array...
|
|
WO/1992/006485A1 |
A night vision scope (10) which includes an improved voltage supply (24). A battery (50) generates a voltage which is proportionally increased by a voltage step-up circuit (52) to provide a voltage to an image intensifier (20) and an inf...
|
|
WO/1992/006560A1 |
An otpo-electronic camera for producing high-resolution electronic images, comprising an object lens which forms an image in an image plane (13), a shadow mask (1) lying in the image plane and having a regular hole structure (2), where t...
|
|
WO/1992/003836A1 |
Low light level, high resolution imager of the type comprising a light amplification tube (300) with a photocathode (310), at least one microchannel wafer serving as an electron amplifier, and a luminescent phosphor screen (340) having a...
|
|
WO/1992/000600A1 |
A matrix-addressed flat panel display (10) is disclosed herein and includes a face structure (12) having a phosphor (24) coated viewing surface and a transparent backing structure (14) spaced a predetermined distance from and in confront...
|
|
WO/1992/000551A1 |
A projector comprises a fibre-optic plate (1), the entrance end-faces (2) of the light guides (3) of which are located in the original image plane (a-a), and a projecting lens (8) in whose field of view are located the exit end-faces (9)...
|
|
WO/1991/016787A1 |
An image observation system comprises an image intensifier provided with an MCP. It further comprises an image converter to convert the output image of the image intensifier into a video signal or a visible image. When the contrast range...
|
|
WO/1991/013456A1 |
An X-ray image tube device provided with an X-ray image tube for converting an X-ray image to a visible one, an X-ray shielding wall and a magnetic shielding wall both provided on the outside of the X-ray image tube, and a cylindrical ca...
|
|
WO/1991/012624A1 |
A cold cathode field emission device that includes a ballast resistor (202, 303, 402) integrally formed therewith and coupled to the emitter (204, 302, 403) to allow appropriate compensation for manufacturing and performance variations i...
|
|
WO/1991/010254A1 |
A mosaic of monitor units (201, 202, etc.) contained in a single covering (30) provide higher-resolution monitor displays proportional to the number of monitor units contained in the monitor casement. The extension of the flat viewing su...
|
|
WO/1991/005364A1 |
A method is described for manufacturing a correction mask for an image intensifier tube of the proximity-focus type having an oblong cathode and anode. Such image intensifiers tend to have a non-uniform light output at the anode in respo...
|
|
WO/1991/005362A1 |
A method of producing a fluorescent screen used for a color cathode-ray tube. Red-light-emitting, green-light-emitting, and blue-light-emitting phosphor layers are repetitively laminated with nonluminescent layers interleaved to form a l...
|
|
WO/1991/005363A1 |
A flat screen display constructed through use of cold cathode field emission devices (112), wherein the devices (112) serve to support the structural integrity of the resultant assembly, and wherein edge emission is utilized to energized...
|
|
WO/1991/005361A1 |
A field emitting device having a plurality of preformed emitter objects (201, 301). The emitter objects include sharp geometric discontinuities, and a significant number of these geometric discontinuities are oriented in a way that suppo...
|
|
WO/1990/015432A1 |
The invention concerns input screens for radiological image intensifier tubes. The input screen comprises a scintillator (12) deposited on an aluminium substrate (10). It converts the incident X-rays into visible photons which then excit...
|
|
WO/1990/007788A1 |
An image display device uses direct-heated linear cathode (12) as a source of an electron beam, and has vibration preventing members (13), (18), (19), (20), (21) and (22) made of an inorganic material and each having a hole. The cathode ...
|
|
WO/1990/001791A1 |
A time-varying control signal is developed by a current sensor (68) connecting the imaging screen (22) and a closely proximate screen grid (52) of a cathode ray tube as an imaging electron beam is operatively swept across the screen to p...
|
|
WO/1990/000808A1 |
A flat panel display (11) of the field emission cathode type is described having polyimide spacers or pillars (39) separating the emitting surface (13) and display face (12) of the same. To provide spacers of constant height, a uniform p...
|
|
WO/1990/000306A1 |
For a flat display device, a control subassembly is needed which consists of two control plates (1; 7) each formed by a layer of parallel conductors (2; 8) which are isolated from each other. During the manufacture of the control subasse...
|
|
WO/1990/000307A1 |
An image intensifier tube is provided with a channel plate. The channel plate's channels are open both at the cathode side and at the anode side. A high frequency alternating electric field is generated in the space between the cathode a...
|
|
WO/1989/011197A1 |
It has been an object of recent research to provide an electronic camera which is practical for the consumer market. Such a camera must be relatively low in cost and small in size and must have acceptable sensitivity and resolution and m...
|
|
WO/1989/009482A1 |
A fluorescent display tube adapted to a large screen display. It has an enlarged area on which electron beams impinge, and also eliminates the effect of electric field near the glass wall of the fluorescent display tube (1) upon the elec...
|
|
WO/1989/009484A1 |
Channel plates for image intensifier tubes have an end-spoiling that continues into the channels over at least a distance greater than twice the channel diameter. In the channels the thicknesses of the end-spoiling decrease with increasi...
|
|
WO/1989/008968A1 |
A colour flat display system comprises a colour flat display device and a driving device for driving said flat display device. The driving device comprises three analog shift registers for storing analog picture signals for three respect...
|
|
WO/1989/006434A1 |
Disclosed are self-contained high electrical charge density entities, generated in electrical discharge devices (10) including an anode (18) and cathode (12) on opposite sides of a dielectric material (16). Apparatus for isolating the hi...
|
|
WO/1989/001271A1 |
A television projection system utilizing one or more cathode ray tubes (22, 42, 44, 46) having concave light emitting surfaces (26) (when viewed from the front) that modify the Lambertian radiation provided by cathode ray tubes having fl...
|
|
WO/1988/010006A1 |
A cathode ray tube (12) which includes a face-plate (16) having on its inner surface a centrally disposed phosphor screen (18), and a flat color selection electrode (35) supported in tension, spaced from the screen. The electrode (35) ha...
|
|
WO/1988/004045A1 |
Apparatus wherein an image intensifier (16) is interposed between a plurality of emission sites (10) from which emanate photons and a photo-detector (20) coupled to the output of the image intensifier to produce separate electrical signa...
|
