Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 5349179 | Night vision device with holographic reticle which is transparent in a first condition and visibly superimposed in a second condition A night vision device with a holographic reticle ordinarily provides a user with all image of a night time scene unimpaired by any reticle pattern. Such a reticle pattern can interfere with night time observations, or may be distracting to the user. Conse... | 09/20/1994 |
| 5349177 | Image intensifier tube having a solid state electron amplifier An image intensifier tube that utilizes a photoresponsive layer for producing electrons in response to received radiation, a solid state electron amplifier for multiplying the electrons produced by the photoresponsive layer, a cold cathode for emitting el... | 09/20/1994 |
| 5347119 | Night vision device with dual-action artificial illumination A night vision device with an infrared light usable for covert signaling and reading as well as for illumination of exceedingly dark areas where sufficient ambient light does not exist for the night vision device to provide a view of the area, includes a ... | 09/13/1994 |
| 5338927 | Proximity focusing image intensifier tube with spacer shims The disclosure relates to image intensifier tubes of the proximity focusing type, wherein it especially concerns the positioning of a primary screen with respect to a slab of microchannels. An image intensifier tube comprises a sealed chamber containing a... | 08/16/1994 |
| 5338926 | X-ray imaging tube having a light-absorbing property An X-ray imaging tube has an input phosphor screen including a substrate, a discontinuous phosphor layer formed on the substrate, and a continuous phosphor layer formed on the discontinuous phosphor layer. The discontinuous phosphor layer consists of a la... | 08/16/1994 |
| 5336881 | High light resolution control of an image intensifier tube The photocathode of an image intensifier is pulsed ON and OFF at a rate determined by a thyristor or SCR having the anode to cathode path coupled to the photocathode and the gate electrode triggered by a variable resistor, capacitor (RC) circuit to cause ... | 08/09/1994 |
| 5336880 | Process for the correction of distortions in radiological images Process to correct distortion of radiological images by obtaining the image of a regular test chart and assessing the distortions to which the image is subjected. This assessment is used to correct normal images obtained with the installation. One obtains... | 08/09/1994 |
| 5329116 | X-ray examination apparatus including an X-ray image intensifier having an improved exit section An exit section of an X-ray image intensifier tube, including an the exit phosphor screen, exit window and basic optical system, is optimized so as to achieve a high light yield, low optical aberration and a high resolution. The exit window notably has a ... | 07/12/1994 |
| 5321334 | Imaging device An imaging device comprising a vacuum vessel, an electron source arranged in the vessel and a solid-state image sensor arranged to receive signal electrons emitted from the electron source. The solid-state image sensor comprises a charge transferring devi... | 06/14/1994 |
| 5319190 | Pocket laser communicator and illuminator A method of providing near simultaneous night vision and communication including directing a narrow voice modulated IR laser beam at a distant receiver/demodulator during communication periods, causing the IR laser beam to diverge substantially during sce... | 06/07/1994 |
| 5319189 | X-ray image intensifier tube having a photocathode and a scintillator screen positioned on a microchannel array An X-ray image intensifier tube includes a scintillator screen for converting ionizing radiation into light radiation or near-visible radiation, a microchannel array for achieving electron multiplication, and a photoelectrode positioned directly on an inp... | 06/07/1994 |
| 5315103 | Radiological image intensifier tube with dyed porous alumina layer The disclosure relates to radiological image intensifier tubes, and more particularly to means to improve the image resolution of these tubes and/or correct their brightness curve at output. The image intensifier tube comprises an input screen comprising ... | 05/24/1994 |
| 5311568 | Optical alignment means utilizing inverse projection of a test pattern/target An imaging system comprised of a source of penetrative radiation 14, an image intensifier tube 18 and a video camera 38 is provided. The intensifier tube is comprised of a input screen 22 and an output screen 24. The intensifier tube converts radiation 20... | 05/10/1994 |
| 5311010 | Buffer for a gamma-insensitive optical sensor with gas and a buffer assembly A buffer assembly for a gamma-insensitive gas avalanche focal plane array operating in the ultra-violet/visible/infrared energy wavelengths and using a photocathode and an avalanche gas located in a gap between an anode and the photocathode. The buffer as... | 05/10/1994 |
| 5308971 | Measurement apparatus and techniques for ultrashort events using electron photoemission with a superlinear photoemission active element Method and apparatus for measuring the time of short events, such as characteristics of a source of short radiation pulses or lifetime of excited states of a sample. The method and apparatus is based on a multi-step photoemission process from an active el... | 05/03/1994 |
| 5306907 | X-ray and gamma ray electron beam imaging tube having a sensor-target layer composed of a lead mixture A large area video camera is suitable for high energy imaging applications. The sensor-target of the camera tube is composed of TlBr, TlI, PbI2, or PbBr2 or a two layer structure comprising CsI and a photoconductive layer of material... | 04/26/1994 |
| 5307204 | Dual mounting assembly for night vision system A mounting assembly for a night vision system is provided which allows the night vision system to be easily and rapidly switched from one eye to the next. The night vision system has an optical portion, and a control housing affixed to the optical portion... | 04/26/1994 |
| 5304792 | X-ray image intensifier tube casing In an X-ray image intensifier tube, a casing for the protection from x-radiation from the X-ray image intensifier tube. The casing according to the present invention comprises a jacket of a thermoplastic material charged with a powder of a material that a... | 04/19/1994 |
| 5304815 | Electron 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 |
| 5305142 | Replacement assembly for an image intensifier tube The present invention is an image intensifier assembly that includes a Generation III image intensifier tube and an inverter lens arrangement, such that the present invention image intensifier assembly can be substituted for a Generation II image intensif... | 04/19/1994 |
| 5304791 | Apparatus for detecting high speed events A photon emitting high speed event detector provides for the optimum detection and location of high speed events such as strobe light sources, pulsed laser, gunfire, and lightning. The detector includes a focal plane array, a control circuit and a cueing ... | 04/19/1994 |
| 5302817 | X-ray detector and X-ray examination system utilizing fluorescent material An X-ray detector has a transmission type intensifying screen provided on the X-ray incident area of the detector body and a reflection type intensifying screen provided on the inner wall surface of the detector body except for the X-ray incident area. Vi... | 04/12/1994 |
| 5294788 | Low light level, high resolution imager using phosphor screen provided with a metal layer for controlling integration cycle of photosensitive matrix array The present invention relates to a low level, high resolution imager of the type comprising a light-amplifier tube (300) including a photocathode (310), at least one microchannel slab (330) serving as an electron amplifier, and a light-emitting phosphor s... | 03/15/1994 |
| 5285061 | X-ray photocathode for a real time x-ray image intensifier A direct conversion X-ray photo-electron cathode has specially designed secondary electron emission layers which provides high efficiency, low noise, high speed and broad band X-ray photon detection. The X-ray photocathode is integrated with a micro chann... | 02/08/1994 |
| 5283427 | Night sight for a missile launcher comprising an image intensifier tube, a reticle, and an objective lens A night sight for a missile launcher has an objective lens with a field of view of at least 22 degrees. The output image of the objective lens is intensified by a variable gain light intensifier tube and the output of the intensifier is viewed through an ... | 02/01/1994 |
| 5280167 | Very high angular resolution laser beam rider detector having a gated image intensifier and a video camera A laser warning receiver (LWR) having an ability to not only detect a low power level laser source, such as a pulse train emitted by a laser beam rider, but to also provide a high angular resolution in determining the angle of arrival of that pulse train.... | 01/18/1994 |
| 5278403 | Femtosecond streak camera A streak camera having improved time resolving capacity in the femtosecond regime. The streak camera uses magnetic and/or electric fields in such a way as to minimize the adverse effects of angular distribution and energy distribution of photoelectrons si... | 01/11/1994 |
| 5268570 | Transmission mode InGaAs photocathode for night vision system An improved photocathode for use in a night vision system, comprising a glass face plate, an AlInAs window layer having an anti-reflection and protective coating bonded to the face plate, an InGaAs active layer epitaxially grown to the window layer, and a... | 12/07/1993 |
| 5266425 | Self-aligned process for applying color filters to electronic output color image intensifiers A method for fabricating a stripe color filter for the input of an image intensifier having a color-interpretive CCD output includes ascertaining CCD subpixel-to input coordinate correlation by test illumination with a positioning laser having low power. ... | 11/30/1993 |
| 5256870 | Input screen of a radiographic image intensifying tube having a radially variable thickness intermediary layer An image intensifying tube, such as a image intensifying tube which converts X-rays into a visible image, comprises a curved input screen which comprises a substrate that receives input radiation and a photocathode supported on the substrate, and an outpu... | 10/26/1993 |
| 5254852 | Helmet-mounted night vision system and secondary imager A helmet-mounted night vision system that is compact, light in weight and ejection-safe. The system incorporates a night vision goggles apparatus for receiving incoming infrared and/or visible light from a viewed object and for converting the incoming lig... | 10/19/1993 |
| 5250795 | Feeble light measuring device A feeble light measuring device comprising a photon counting tube, an image detector and a signal processor. The photon counting tube includes a photocathode for generating an electron upon an incidence of light to be measured, an MCP for multiplying the ... | 10/05/1993 |
| 5248874 | Image intensifier tube with correction of brightness at the output window A image intensifier tube, having its brightness curve corrected in a simple way. The image intensifier tube comprises an input window (3), and an output window (4) at which the brightness is measured. The output window (4) bears a device for the attenuati... | 09/28/1993 |
| 5241394 | Cathode-ray tube having a shrinkfit implosion protection band with enhanced corrosion resistance A cathode-ray tube comprises an evacuated envelope which includes a faceplate panel joined to a funnel. A steel shrinkfit implosion protection band having a metallic protective coating thereon is fitted around the periphery of the panel to apply a compres... | 08/31/1993 |
| 5241170 | Fiber optic imaging device and methods A fiber optic viewing device has in a first embodiment, a color-preserving image intensifier positioned at the viewing end thereof. In a second embodiment, an input light source is sequentially modulated through a cycle of wavelength sets. The resulting i... | 08/31/1993 |
| 5233182 | Method and apparatus for the acquisition of data for determining the duration and chirp of ultrashort laser pulses For the acquisition of data for determining the duration and chirp (frequency modulation) of a single ultrashort laser radiation pulse said pulse is split into two partial pulses which are each conducted through one of two TREACY compressors having differ... | 08/03/1993 |
| 5233183 | Color image intensifier device and method for producing same An image intensifier device for producing a color output image includes in a proximity focused intensifier tube, an RGB color filter matrix screen printed upon a glass wafer which is laminated to the input faceplate of the tube and sandwiched between the ... | 08/03/1993 |
| 5229598 | Night vision goggles having enlarged field of view and interchangeable optics Night vision apparatus, particularly night vision goggles, having a wide field of view. The apparatus includes an objective optical system having a selected field of view for collecting visible and/or infrared light from an object to be viewed and for pro... | 07/20/1993 |
| 5229600 | Exposure-compensation device for reciprocating-filter time-modulated color image intensifier A color preserving image intensifier having synchronously reciprocating input and output multi-segmented, multi-color filter slides. To compensate for differences in exposure time of the segments of the filters arising from varying reciprocation velocity ... | 07/20/1993 |
| 5225670 | X-ray to visible image converter with a cathode emission layer having non-uniform density profile structure High quantum efficiency (ࣙ5%) ultrafast (ࣘ100 picosecond) and broad band (30 KeV to 80 KeV for medical application) X-ray photo-electron cathode, high gain X-ray real time image intensifier and portable low intensity real time projection type X-ray im... | 07/06/1993 |
