Abstract:
A stable cold field electron emitter is produced by forming a coating on an emitter base material. The coating protects the emitter from the adsorption of residual gases and from the impact of ions, so that the cold field emitter exhibits short term and long term stability at relatively high pressures and reasonable angular electron emission.
Abstract:
PROBLEM TO BE SOLVED: To provide: an electron-emitting source; an electron-emitting element; and a method of manufacturing an electron-emitting source. SOLUTION: This electron-emitting source has a carbon-based substance, and a deterioration-preventing substance for the carbon-based substance, wherein binding energy between the deterioration-preventing substance for the carbon-based substance and external oxygen is larger than that between the carbon-based substance and the external oxygen. This electron-emitting element is provided with the electron-emitting source. This manufacturing method is provided for manufacturing the electron-emitting source. Accordingly, the electron-emitting source can have excellent field-emission efficiency, and long life. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a cold field electron emitter with an improved stability. SOLUTION: The stabilized cold field electron emitter is manufacture by forming a coating on an emitter and a base material. Since the coating protects the emitter from a suction of a residual gas and from an ion shock, the cold field emitter can demonstrate a stability in a comparatively high pressure for a short and long term and a moderate angle electron emission. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
A field emitter element (10) comprising a bottom layer (14, 15) of material shaping the overall emitter element (10), and a top layer (16, 17) of low work function material or otherwise of high electron emissivity characteristic. The low work function top layer (16, 17) preferably is shaped to a sharp point. The bottom layer (14, 15) may be formed of a material such as tantalum, molybdenum, gold, or silicon (or alloys thereof), and the top layer (16, 17) may be formed of a material such as Cs, Cs2, CrSI2, Nbs2, Nb, C2O3 or SiC. In a specific aspect, at least one of the first and second emitter materials is chromium oxide (C2O3). In another variant, the first emitter material is an insulator of leaky dielectric, e.g., SiO with a 10 - 60 % C by weight based on the weight of SiO, and the second emitter material is SiO+50-90 % C by weight, based on the weight of SiO.
Abstract:
An imaging apparatus (100) for providing an image from a display (106) to an observer (101), comprising: a display (106) generating an optical output, an imaging surface member (109) constructed and arranged for viewing by said observer, and a scanning mirror/lens assembly (102) optically interposed between the display and the imaging surface member, and constructed and arranged to motively repetitively scan the display, generate a scanned image, and transmit the scanned image to the imaging surface member, for viewing of the scanned image. Various field emitter display designs and subassemblies are described, which may be usefully employed in such imaging apparatus.
Abstract:
A field emitter array magnetic sensor (FEAMS) device, comprising: an anode; a base plate member having on a first side thereof a plurality of gated field emitter elements thereon, in spaced proximal relationship to the anode. The plurality of gated field emitter elements and the anode structure are arranged so that each of the gated field emitter elements is in electron emitting relationship to varying electron impingement sites depending on intensity of the magnetic field on the gated field emitter element. The device includes structure for sensing the locations of the anode structure electron impingement sites receiving electrons from the plurality of gated field emitter elements, and determining the strength and orientation of the magnetic field. Also disclosed are various anode configurations which may be usefully employed in the FEAMS device of the invention.