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| Number | Title | Issue Date |
| 5866897 | Optical waveform detecting device The optical trigger 22 outputs a trigger signal in. synchronization with a pulse beam falling incident on the photocathode 91 of the streak tube 90. The deflection voltage generator 50 applies a pair of deflection voltages to the deflection electrodes 93 ... | 02/02/1999 |
| 5864207 | Photomultiplier with lens element A photomultiplier includes a photocathode (3); an electron multiplier section (60) for cascade-multiplying photoelectrons emitted from the photocathode (3); a faceplate (2) provided with the photocathode (3); a metal housing (1) accommodating the photocat... | 01/26/1999 |
| 5852291 | Low profile night vision goggle having a fiber optic element A night vision goggle system having an objective lens for viewing an image scene, an image intensifier tube for amplifying a received image scene, an eyepiece lens for presenting the amplified image scene produced at the output of the image intensifier tu... | 12/22/1998 |
| 5828166 | Image intensifier system incorporated into a removable lens daylight imaging system An intensifying system adapted to be affixed to an electronic imaging device such as a single lens reflex camera or a video camera. The system includes a central intensifying unit for intensifying an image at lower light levels. A back body adapter and a ... | 10/27/1998 |
| 5811932 | X-ray detector having an entrance section including a low energy x-ray filter preceding a conversion layer An X-ray image intensifier tube (1) includes an entrance section (2) for converting high-energy X-rays of from 100 keV to 120 keV into an electron beam (10). The entrance section (2) had a conversion layer (3) with a filter layer (5) for absorbing a part ... | 09/22/1998 |
| 5808733 | Device for measuring feeble light and method thereof In a device for measuring feeble light and a method thereof, the device includes a feeble light amplifying device having a reaction chamber with two transparent windows as a constituent part, a detector, and two mirrors. The feeble light generated in the ... | 09/15/1998 |
| 5786932 | Vision assisting apparatus A single eye vision device includes a head mount, a vision assist assembly mounted on the head mount for selectable positioning in front of an eye of a wearer and single lever operated positioning apparatus for positioning of the vision assist assembly on... | 07/28/1998 |
| 5757118 | X-ray image intensifier tube apparatus having magnetic shield In an X-ray image intensifier tube apparatus inc-luding a cylindrical magnetic shield placed to surround the outer periphery of an X-ray image intensifier tube, a ferromagnetic thin plate is placed in front of a convex input window of a vacuum envelope an... | 05/26/1998 |
| 5756989 | Color night vision goggles capable of providing anti-jamming protection against pulsed and continuous wave jamming lasers Color night vision goggles (NVG), e.g., binocular-style or monocular-style NVG, which include at least one channel. Each channel includes an objective lens for receiving input radiant energy from a low-luminance scene within the field-of-view of the NVG, ... | 05/26/1998 |
| 5751380 | Optical protection apparatus for use with night vision devices An optical protection apparatus for preventing the degradation by bright ht of the performance of night vision devices which includes a first lens for focusing bright light from a light source onto a charge coupled device sensing array at its focal plane... | 05/12/1998 |
| 5747792 | Circuit and method for preventing laser jamming of night vision goggles A method for preventing laser jamming of night vision goggles having a gated image intensifier device and a display for displaying an intensified image of a scene. The method includes the steps of detecting laser pulses from a jamming laser source and pro... | 05/05/1998 |
| 5739522 | Flat panel detector and image sensor with means for columating and focusing electron beams A flat panel image sensor is provided by combining the photoconductive imaging electrode of a vidicon with a two dimensional array of cold cathode field emitters commonly used for flat panel Field Emission Display (FED) systems. The FED operates normally ... | 04/14/1998 |
| 5729010 | Night vision device localized irradiance attenuation A night vision device enhancement wherein occurrence of a bright object in an input scene of the night vision device is precluded from adversely affecting reproduction of adjacent low radiance level portions of the input scene. By optically limiting or ex... | 03/17/1998 |
| 5726438 | Luminous flux measuring device with a gain-controlling slave circuit enabling the device to rapidly adapt to changes in flux A luminous flux measuring device has a gain slaving circuit (10, 9), that receives an electrical output signal (m) produced by a photoreceiver (1) and includes a gain control circuit (9) and a comparator (10). The gain slaving circuit is connected to an A... | 03/10/1998 |
| 5719401 | Position-sensitive electromagnetic radiation detectors A position-sensitive electromagnetic radiation detector for measuring the position and energy of high energy electromagnetic radiation emitted from a high energy electromagnetic radiation source. The detector may also be used for measuring the position an... | 02/17/1998 |
| 5719390 | Photodetection tube with a lid and cathode holding member in thermal contact with a cooler A photomultiplier includes a cathode supporting member, arranged in a tube and comprised of a conductive material, for holding a photocathode, and a holding mechanism, comprised of a heat conductive material, for biasing the cathode holding member to hold... | 02/17/1998 |
| 5703354 | Binocular night vision device and method of making and using the device A binocular night vision device (BNVD) includes a pair of night vision monocular scopes which pivotally and adjustably depend from a central housing portion. The central housing portion and the two night vision monocular scopes cooperatively define a sing... | 12/30/1997 |
| 5701004 | Driving circuit for electron multiplying devices A driving circuit for an electron multiplying device is provided which provides sufficient dynamic range and input-output linearity characteristic and reduces power loss to a greater extent. A cathode is set to a voltage substantially equal to the housing... | 12/23/1997 |
| 5686721 | Position-transmitting electromagnetic quanta and particle radiation detector A method and apparatus for image signal decoupling in position-transmitting high-vacuum electromagnetic radiation quanta or particle detectors. The electromagnetic radiation quanta or particles impinge on a spatially resolving anode structure through a ph... | 11/11/1997 |
| 5656808 | Method for the use of an X-ray image intensifier tube and circuit for the implementation of the method Disclosed is a method for the use of an X-ray image amplifier tube comprising a succession of electrodes, among them a photocathode. This X-ray image intensifier tube may have, alternately, an off state and an operating state. The method consists of the a... | 08/12/1997 |
| 5656807 | 360 degrees surround photon detector/electron multiplier with cylindrical photocathode defining an internal detection chamber A 360° surround photon detector/electron multiplier having: i) a continuous annular inner wall formed of thin light-transmissive material defining an internal coaxial detection chamber; ii) an annular enclosed evacuated envelope integral with the inner w... | 08/12/1997 |
| 5654536 | Photomultiplier having a multilayer semiconductor device In a photomultiplier of the present invention, a semiconductor device arranged in an envelope to oppose a photocathode is constituted by a semiconductor substrate of a first conductivity type, a carrier multiplication layer of a second conductivity type d... | 08/05/1997 |
| 5646477 | X-ray image intensifier An X-ray image intensifier that includes a vacuum envelope having a metal X-ray input window and an input screen formed on the inner surface of the X-ray input window, a focusing electrode, an anode, and an output screen arranged in the vacuum envelope al... | 07/08/1997 |
| 5644122 | Grin optical system An optical system includes graded refractive index ("GRIN") optical elements. An objective optical element and an ocular optical element, each including at least one GRIN element, are located in an optical path which is substantially voidless. The optical... | 07/01/1997 |
| 5635706 | Direct conversion X-ray/gamma-ray photocathode A direct conversion broad band x-ray/gamma-ray photocathode having at least one layer functioning as an efficient x-ray or gamma-ray absorber and another layer functioning as an efficient transmission secondary electron emitter for providing both high det... | 06/03/1997 |
| 5633493 | Image tube having a YAG crystal This image tube converts irradiated electrons into fluorescence by irradiating electrons converted from a light beam by a photocathode onto a YAG crystal member. Since the YAG crystal member is a single unitary solid, the fluorescence generated on the inp... | 05/27/1997 |
| 5631459 | Device for generating images by luminescence effect A device for selecting a remanence of output screens of radiological image intensifier tubes. A luminescent screen (ES1) utilizes two phosphor materials (A, B) exhibiting different remanences and different emission spectra. Wavelength-selective optical fi... | 05/20/1997 |
| 5623141 | X-ray image intensifier with high x-ray conversion efficiency and resolution ratios A new type x-ray image intensifier has a specially developed x-ray sensit photocathode which has a low/high density alkali halogenide structure and therefore has high conversion efficiency of converting x-ray directly into photoelectrons or a field-assis... | 04/22/1997 |
| 5610078 | Method for making transmission mode 1.06μm photocathode for night vision An improved photocathode (12) and image intensifier tube (10) are disclosed along with a method for making both the tube (10) and photocathode (12). The disclosed image intensifier tube (10) creates a visible light image (20) from an image emitting photon... | 03/11/1997 |
| 5567929 | Flat panel detector and image sensor A flat panel image sensor is provided by combining the photoconductive imaging electrode of a vidicon with a two dimensional array of cold cathode field emitters commonly used for flat panel Field Emission Display (FED) systems. The FED operates normally ... | 10/22/1996 |
| 5563653 | Focussed output microchannel plate for an image intensifier tube A microchannel plate for an image intensifier tube, the microchannel plate comprising a substrate having an input surface and an output surface and a plurality of channels extending therebetween, each of the channels defining a channel wall, wherein the m... | 10/08/1996 |
| 5563407 | X-ray image intensifier tube with an ion pump to maintain a high vacuum in the tube An X-ray image intensifier incorporates a pair of opposed electrodes and an ion pump within a vacuum vessel. The ion pump supplies a magnetic field to a space between the opposed electrodes. At least one of the opposed electrodes is connected to focusing ... | 10/08/1996 |
| 5561557 | Night vision binoculars with electronic imaging Night vision binoculars including an optical system for the projection of an incident light flux formed by an objective which is itself coupled through an image-reducing interface to detection means in matrix form where the image from the interface is con... | 10/01/1996 |
| 5535053 | Night vision goggle assembly with independant monocular devices A modular night vision device wherein either one or two night vision monocular assemblies can be joined to a common mount to selectively create either a monocular night vision apparatus or a binocular night vision apparatus. Electrical contacts are presen... | 07/09/1996 |
| 5532475 | Method and apparatus for two-dimensional radiation detection A two-dimensional radiation detecting method and apparatus for converting incident radiation in a two-dimensional distribution into electric signals. The apparatus includes a target structure and an electron beam scan mechanism. The target structure has a... | 07/02/1996 |
| 5532551 | Photomultiplier for cascade-multiplying photoelectrons A photomultiplier has a focusing electrode plate for supporting focusing electrodes, provided between a photocathode and a dynode unit. Since the focusing electrode plate has holding springs which are integrally formed with the focusing electrode plate, r... | 07/02/1996 |
| 5528418 | Night augmented day scope A day-night rifle sight, using separate parallel day and night sights comed by means of a beam splitter; is improved by: integrating the housings of the night sight and beam splitter, reducing the outer dimensions, sealing and strengthening the coupling ... | 06/18/1996 |
| 5523556 | Apparatus and method of using PMT having wrap-around circuitry A Cockcroft-Walton (CW) multiplying circuit is mounted to wrap around a cylindrical structure. A photomultiplier tube (PMT) has a photocathode which emits electrons and has dynodes connected to the CW multiplying circuit. The dynodes are biased to attract... | 06/04/1996 |
| 5521386 | Gamma ray camera method and apparatus A gamma ray imaging camera system and method for using it are described which in representative embodiments include a gamma ray collimator, a scintillator adjacent the collimator for converting gamma photons into visible photons, a low level visible photo... | 05/28/1996 |
| 5519209 | High range resolution active imaging system using a high speed shutter and a light pulse having a sharp edge An active imaging system for viewing targets with a high degree of range resolution of approximately one foot. The imaging system utilizes a laser pulse which passes through an electro-optical pulse slicer which creates a sharp leading edge and/or a sharp... | 05/21/1996 |
