Field emission type electron source element, electron gun and cathode-ray tube device using them
    11.
    发明专利
    Field emission type electron source element, electron gun and cathode-ray tube device using them 审中-公开
    场发射型电子源元件,电子枪和阴极射线管使用它们

    公开(公告)号:JP2003016914A

    公开(公告)日:2003-01-17

    申请号:JP2001201633

    申请日:2001-07-03

    Abstract: PROBLEM TO BE SOLVED: To provide a field emission type electron source element for high performance color picture tube to which high resolution is required. SOLUTION: An electrode structure having a convergence effect is arranged proximity to the vicinity of an extraction electrode of a cold cathode electron source array part, whereby the convergence effect of emitted electron beams is enhanced to provide a satisfactory low-emittance characteristic. Consequently, an electron gun or display device having a high resolution characteristic can be realized.

    Abstract translation: 要解决的问题:提供要求高分辨率的高性能彩色显像管的场发射型电子源元件。 解决方案:具有会聚效应的电极结构布置在靠近冷阴极电子源阵列部分的引出电极附近,从而增强发射电子束的会聚效应,以提供令人满意的低发射特性。 因此,可以实现具有高分辨率特性的电子枪或显示装置。

    Автоэмиссионная магнетронно-инжекторная пушка с ленточным пучком

    公开(公告)号:RU187097U1

    公开(公告)日:2019-02-19

    申请号:RU2018124699

    申请日:2018-07-05

    Abstract: Полезнаямодельотноситсяк электроннойтехнике, аименнок вакуумнымэлектроннымприборам, втомчислек СВЧприборамс протяженнымвзаимодействиеми мгновеннымвременемготовности, использующимавтоэмиссионныекатоды.Задачейнастоящейполезноймоделиявляетсясозданиеавтоэмиссионноймагнетронно-инжекторнойпушки, формирующейленточныйэлектронныйпучок, иобеспечивающейтранспортировкупучкав пролетномканалеанода. Поставленнаязадачадостигаетсятем, чтов магнетронно-инжекторнойпушке, состоящейизпологоанодас отверстиемв формеусеченногоклинаи внутриегоплоскосимметричнорасположенногоавтокатодав формеусеченногоклина, отличающейсятем, чтоавтокатодустановленв отверстиианодас образованиемдвухравныхповеличиневакуумныхзазоров d, которыевыбираютсогласносоотношению:d≥U/20000 (В, мм).Автоэмиссионнаямагнетронно-инжекторнаяпушкас ленточнымпучкомпогруженав магнитномполе, индукциякоторогонаправленавдольпушкии выбираетсясогласнонеравенству: В>2300⋅U/d(Гс, В, мм). Вмагнетронно-инжекторнойпушкенавнешнейповерхностиусеченногоклинавыполнен (выращен) массивизмикро- инаноостриев, которыйнаходитсясосмещениемотплоскостисимметрииклинас однойсторонынавеличинуболее, чем w/2 ис обратнойнавеличинуболее, чем -w/2.

    DESTUFFING CONTROL BY MODIFYING DETECTED POINTER WITH DIFFERENTIAL VALUE

    公开(公告)号:CA2066971C

    公开(公告)日:1997-02-25

    申请号:CA2066971

    申请日:1992-04-24

    Applicant: NEC CORP

    Inventor: KANEKO HIROAKI

    Abstract: In a digital communication system where a received stuff-synchronized TDM signal is demultiplexed into data signals each containing a sequence of frames. Each frame contains a pointer to indicate the start timing of the frame and specify positive, negative or zero destuffing. A pointer is detected from each data signal and compared with a previous pointer of the data signal stored in a memory. From this comparison the type of destuffing to be performed on a frame is determined, and in response to it, +1, -1 or 0 is added to the previous pointer to produce a current pointer, which is then used to rewrite the previous point. A binary clock count value is generated by a single phase counter and compared with the current pointer to generate a start-of-frame signal if it equals the current value.

    16.
    发明专利
    未知

    公开(公告)号:NL8302490A

    公开(公告)日:1984-02-01

    申请号:NL8302490

    申请日:1983-07-12

    Applicant: TEKTRONIX INC

    Abstract: An apparatus of providing vertical smoothing of convergence correction signals in a digital convergence system is disclosed. The surface of a cathode ray tube is subdivided into a matrix including a plurality of intersecting rows and columns and having a plurality of intersections corresponding thereto. A value is assigned to each intersection of a row and a column of said matrix. An electron beam traces a plurality of scan lines within each of the rows of the matrix. For each scan line within a row of the matrix, a convergence correction signal is synthesized using the plurality of values associated with the plurality of intersections in said row. A plurality of horizontal discontinuities are present in the convergence correction signal as a result of the different magnitudes associated with the plurality of values used to synthesize the convergence correction signal. Using conventional filtering techniques, the impact of the horizontal discontinuities in the convergence correction signal may be minimized thereby providing horizontal smoothing of the convergence correction signal. When the electron beam begins tracing the plurality of scan lines in the next, subsequent row of the matrix, a vertical discontinuity is produced, i.e., a gap or an overlap between groups of scan lines traced by the electron beam. The impact of these vertical discontinuities can be minimized by providing vertical smoothing of the convergence correction signal. This vertical smoothing is accomplished by using a linear interpolator to interpolate between values associated with two adjacent, vertically oriented intersections of said matrix, and by progressively changing the magnitude of the convergence correction signal in response thereto. Vertical smoothing of the convergence correction signal is accomplished and the vertical discontinuities between groups of scan lines traced by the electron beams are eliminated.

    17.
    发明专利
    未知

    公开(公告)号:NL7907717A

    公开(公告)日:1981-04-22

    申请号:NL7907717

    申请日:1979-10-19

    Applicant: PHILIPS NV

    Abstract: If in a device for displaying colored pictures comprising a color display tube of the "in-line" type, which comprises magnetized means for maintaining a static magnetic multipole magnetic field near the output of the electron gun system for carrying out static beam corrections, a correction magnet is provided outside the neck near the output of the electron gun system and near at least one outermost electron beam, which magnet forms a magnetic dipole and is intersected by the said plane and which correction magnet is small with respect to its distance to said electron beam, it is possible afterwards to provide small corrections in the horizontal static convergence.

    ELEKTRONENKANONE UND ELEKTRONENSTRAHLVORRICHTUNG

    公开(公告)号:DE112019007690T5

    公开(公告)日:2022-07-07

    申请号:DE112019007690

    申请日:2019-10-31

    Abstract: Es wird ein von einer photoangeregten Elektronenkanone emittierter Elektronenstrahl mit erhöhter Leuchtdichte bereitgestellt. Eine Elektronenkanone 15 umfasst: eine Photokathode 1 mit einem Substrat 11 und einer photoelektrischen Dünnschicht 10; eine Lichtquelle 7, die gepulstes Anregungslicht emittiert; eine Sammellinse 2, die das gepulste Anregungslicht zur Photokathode fokussiert; und eine Extraktionselektrode 3, die der Photokathode gegenüberliegt und die einen Elektronenstrahl beschleunigt, der durch die photoelektrische Dünnschicht erzeugt wird, indem das gepulste Anregungslicht durch die Sammellinse fokussiert wird, das Substrat der Photokathode durchläuft und auf die Photokathode einfällt. Das gepulste Anregungslicht wird an verschiedenen Zeitpunkten an verschiedenen Positionen auf der photoelektrischen Dünnschicht der Photokathode fokussiert.

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