Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7417235 | Particle detector for secondary ions and direct and or indirect secondary electrons A multi-purpose efficient charge particle detector that by switching bias voltages measures either secondary ions, or secondary electrons (SE) from a sample, or secondary electrons that originate from back scattered electrons (SE3), is described. The basic version o... | 08/26/2008 |
| 7321123 | Method and apparatus for radiation detection in a high temperature environment A radiation detector operating at high temperatures is shown comprising a LuAP scintillating material for producing light when excited by incident radiation, a photocathode, and an electron multiplier. The photocathode is deposited directly onto the surface of the s... | 01/22/2008 |
| 7251400 | Absorptive clad fiber optic faceplate tube A limiter device is used as a fiber optic faceplate (FOFP) night vision goggle for limiting light or laser induced damage on a vacuum side of the FOFP. The limiter device includes a plurality of longitudinally extending optical fibers, each bundled to each other to ... | 07/31/2007 |
| 7208874 | Transmitting type secondary electron surface and electron tube A transmission secondary electron emitter is provided which emits secondary electrons generated by the incidence of primary electrons. The transmission secondary electron emitter includes a secondary electron emitting layer which is made of diamond or a material con... | 04/24/2007 |
| 7176625 | Photocathode plate and electron tube Provided are a photocathode plate capable of stably achieving a high sensitive property, and an electron tube using such a photocathode plate. In a photomultiplier tube 1, an insulating layer 63 is formed between a semiconductor electron emissio... | 02/13/2007 |
| 7128950 | Electron beam physical vapor deposition process An electron beam physical vapor deposition (EBPVD) process performed with a coating apparatus to produce a coating material (e.g., a ceramic thermal barrier coating) on an article. The EBPVD apparatus generally includes a coating chamber operated at an elevated temp... | 10/31/2006 |
| 7025652 | Electron amplifier utilizing carbon nanotubes and method of manufacturing the same An electron amplifier and a method of manufacturing the same are provided. The electron amplifier includes a substrate in which a plurality of through holes are formed, a resistive layer deposited on the sidewalls of the through holes, an electron emissive layer inc... | 04/11/2006 |
| 6992441 | MBE grown alkali antimonide photocathodes A photocathode manufacturing intermediary article (24) includes a substrate layer (26), and an active layer (20) that is carried by the substrate layer (26). The active layer (20) includes photoemissive alkali antimonide material t... | 01/31/2006 |
| 6946792 | Photomultiplier A photomultiplier excellent in vibration resistance and improved in pulse linearity characteristic and time-response. The fourth, and sixth to ninth dynodes (Dy4, Dy6 to Dy9) have a similar shape to that of the second dynode (Dy2). The th... | 09/20/2005 |
| 6917058 | Semiconductor photocathode In the case of a thick light-absorbing layer 2, a phenomenon of a decrease in the time resolution occurs. However, when the thickness of the light-absorbing layer 2 is limited, a portion of low electron concentration in one electron group is cut out, a... | 07/12/2005 |
| 6762555 | Photomultiplier tube and radiation detector A photomultiplier tube has a side tube with a stem plate fixed on one end and a faceplate fixed on the other. The side tube is formed of metal, and at least the portion of the stem plate contacting the metal side tube is formed of metal. The side tube and stem plate... | 07/13/2004 |
| 6657385 | Diamond transmission dynode and photomultiplier or imaging device using same A diamond transmission dynode and photocathode are described which include a thin layer of a crystalline semiconductive material. The semiconductive material is preferably textured with a (100) orientation. Metallic electrodes are formed on the input and ... | 12/02/2003 |
| 6635990 | Display device with primary and secondary light-emissive regions A display device comprising a primary light-emissive region, a light-sensitive region and a secondary light-emissive region, wherein: the primary light-emissive region comprises an organic light-emissive material and a pair of electrodes arranged to apply... | 10/21/2003 |
| 6628072 | Acicular photomultiplier photocathode structure A method and apparatus for increasing the quantum efficiency of a photomultiplier tube by providing a photocathode with an increased surface-to-volume ratio. The photocathode includes a transparent substrate, upon one major side of which is formed one or ... | 09/30/2003 |
| 6624414 | Image intensifier tube with IR up-conversion phosphor on the input side The present invention comprises an enhanced vision device having an image intensifier tube (16) with an input end (17a) and an output end (17b) with an IR phosphor (19) deposited on the input end (17a) of the image intensifier tube (16). The IR phosphor (... | 09/23/2003 |
| 6614180 | Radiation detection apparatus and method An apparatus and method for detecting ionizing radiation are presented. The apparatus includes a scintillator adapted to convert incident ionizing radiation into light; a photocathode adapted to release photoelectrons in dependence on the light; an electr... | 09/02/2003 |
| 6563264 | Photocathode and electron tube This photocathode comprises: InP substrate 1; InAsx2 P1-x2 (00.53) light-absorbing layer 3; InAsx3 P1-x3 (0 | 05/13/2003 |
| 6437491 | System for enhanced vision employing an improved image intensifier with an unfilmed microchannel plate The present invention comprises a photon detector and image generator, which includes a photocathode that receives photons from an image. The photocathode discharges electrons in response to the received photons. A microchannel plate with an unfilmed inpu... | 08/20/2002 |
| 6437339 | Flat panel x-ray imager with gain layer A flat panel x-ray imager includes a gain layer (charge multiplication layer) that facilitates imaging at low x-ray exposure levels. The gain layer can be a gas chamber or a solid state material operating in an avalanche mode.... | 08/20/2002 |
| 6320303 | Radioactive-ray image tube having input member formed of a clad material The object of the present invention is to provide a radioactive-ray image tube having less deformations, such as the twist of an input substrate, less aberration over the entire regions of an output image, excellent resolution and good brightness uniformi... | 11/20/2001 |
| 6169360 | X-ray image intensifier and method for manufacturing thereof The present invention assures a satisfactory adhesiveness of an input screen 13 of an X-ray image intensifier, high resolution of an output image and brightness uniformity as required, by configuring an aluminum or aluminum alloy substrate 21 so to have a... | 01/02/2001 |
| 5680007 | Photomultiplier having a photocathode comprised of a compound semiconductor material A photoelectric emission surface which is excellent in stability and reproducibility of photoelectric conversion characteristics and has a structure capable of obtaining a high photosensitivity is provided. A predetermined voltage is applied between an up... | 10/21/1997 |
| 5667905 | Electro-luminescent material, solid state electro-luminescent device and process for fabrication thereof An electro-luminescent material and solid state electro-luminescent device comprising a mixed material layer formed of a mixture of silicon and silicon oxide doped with rare earth ions so as to show intense room-temperature photo- and electro-luminescence... | 09/16/1997 |
| 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 |
| 5587621 | Image intensifier tube In order to increase the sensitivity of an image intensifier tube, the efficiency with which an electron image is formed from radiation of a first wavelength is increased. Radiation of the first wavelength is converted into radiation of a second wavelengt... | 12/24/1996 |
| 5349178 | Image intensifier with protected image sensor An x-ray image intensifier has an evacuated housing, an input luminescent screen, electron optics, and an image sensor disposed inside the housing at a side of the housing opposite the input luminescent screen. The image sensor is covered by a protective ... | 09/20/1994 |
| 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 |
| 5311098 | Interference photocathode An interference photocathode includes a reflective substrate and interference layers disposed on said reflective substrate for selectively enhancing a first photoelectric yield of said photocathode when irradiated by radiation having a first wavelength re... | 05/10/1994 |
| 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 |
| 5029247 | X-ray image intensifier and method of manufacturing input screen An X-ray image intensifier includes an input screen for converting incident X-rays into photoelectrons, and an output screen for converting the photoelectrons into visible light. The input screen includes a phosphor layer. The phosphor layer has a large n... | 07/02/1991 |
| 5008591 | X-ray image intensifier tube comprising a selective filter The entrance screen in an X-ray image intensifier includes an intermediate layer of a material which selectively absorbs photon energy. As a result, the speed of the photo-electrons is substantially reduced, thus improving the imaging. By introducing a ra... | 04/16/1991 |
| 4982136 | X-ray image intensifier tube An aluminum substrate which supports a scintillator transforms X-rays into visible or nearly visible light radiation which is converted into a flux of electrons by means of a photocathode. The flux produces a visible image on an exit screen through electr... | 01/01/1991 |
| 4950952 | Photocathode and method of manufacturing the same The present invention provides a photocathode which is formed on a substrate consisting of polycrystalline members, and which mainly consists of a semimetal, manganese or silver, and one or a plurality of alkaline metals, characterized in that the photoca... | 08/21/1990 |
| 4935617 | X-ray image intensifier and method of manufacturing the same An X-ray image intensifier comprising a vacuum envelope and an input screen having an improved sensitivity and including a substrate disposed on the X-ray input side of the vacuum envelope, a phosphor layer formed on the substrate and a photocathode forme... | 06/19/1990 |
| 4831249 | X-ray intensifier tube comprising a separating layer between the luminescent layer and the photocathode The separating layer between the luminescent layer and the photocathode of the entrance screen in an X-ray image intensifier tube is formed by a layer which has a suitable optical transmission, a suitable chemical inertia, a suitable tightness and a stron... | 05/16/1989 |
| 4740683 | X-ray image intensifier with phosphor layer of varying thickness An X-ray image intensifier includes an input surface and an output surface facing the input surface. The input surface has a base and a phosphor layer formed on the base and having a predetermined effective radius. The phosphor layer includes a thickest p... | 04/26/1988 |
| 4730141 | Imaging tube having a reflective photocathode and internal optical means An imaging tube particularly useful in providing a visible image corresponding to an incident infrared image in which a reflective photocathode is used to provide an electron image corresponding to the infrared image, and in which the incident image rays ... | 03/08/1988 |
| 4709140 | High speed light detection tube A high speed light detection tube consists of a planar photoelectron source of transparent type, a photoelectron collection electrode arranged in parallel with the photoelectron source and an acceleration electrode of transmission type arranged in paralle... | 11/24/1987 |
| 4698544 | Imaging and streaking tubes including a lid for covering an aperture in a wall separating the tube envelope into spaces during fabrication thereof An imaging tube for amplifying and observing a diminished light image and a streaking tube for analyzing the light intensity distributions of light sources with elapsing of time. In order to avoid adhesion of alkali metal to the micro-channel-plate in fab... | 10/06/1987 |
| 4645971 | X-ray image intensifier and application to a digital radiology system The thickness of the layer of luminescent material on the edges of the screen at approximately 1/10° from the edge of the image field is approximately 15 to 25% smaller than its thickness at the center of the screen. Thus the length of the x-ray path wit... | 02/24/1987 |
