High pressure sodium vapor lamp having resistance heater means
    1.
    发明授权
    High pressure sodium vapor lamp having resistance heater means 失效
    具有电阻加热器装置的高压钠蒸汽灯

    公开(公告)号:US4442379A

    公开(公告)日:1984-04-10

    申请号:US403900

    申请日:1982-07-30

    IPC分类号: H01J61/56 H05B41/16

    CPC分类号: H01J61/56

    摘要: An improved high pressure sodium vapor lamp is described having resistance heater means contained within a tubular light-transmitting ceramic envelope that further contains a reservoir of sodium-mercury amalgam in excess of the quantity vaporized during lamp operation in order to increase the quantity of amalgam being vaporized during lamp operation and thereby help maintain the desired lamp color temperature. In a preferred embodiment, said resistance heater means comprises a refractory metal coil wound around the tungsten shank of one thermionic electrode and electrically insulated therefrom with said thermionic electrode including a tubular metal inlead serving as the amalgam reservoir.

    摘要翻译: 描述了一种改进的高压钠蒸汽灯,其具有包含在管状透光陶瓷外壳内的电阻加热器装置,其还包含超过灯操作期间蒸发的量的钠 - 汞汞齐的储存器,以便增加汞齐的量 在灯操作期间汽化,从而有助于保持期望的灯色温。 在优选实施例中,所述电阻加热器装置包括缠绕在一个热离子电极的钨柄上并与之电绝缘的难熔金属线圈,所述热电子电极包括作为汞齐储存器的管状金属。

    High pressure sodium vapor lamp having resistance heater means
    2.
    发明授权
    High pressure sodium vapor lamp having resistance heater means 失效
    具有电阻加热器装置的高压钠蒸汽灯

    公开(公告)号:US4442378A

    公开(公告)日:1984-04-10

    申请号:US403899

    申请日:1982-07-30

    IPC分类号: H01J61/54 H01J61/82 H05B41/16

    CPC分类号: H01J61/825 H01J61/542

    摘要: An improved high pressure sodium vapor lamp is described having resistance heater means contained within a tubular light-transmitting ceramic envelope that further contains a reservoir of sodium-mercury amalgam in excess of the quantity vaporized during lamp operation in order to heat the ceramic envelope before lamp starting and thereby reduce the starting voltage requirements. In the preferred embodiment, said resistance heater means comprises a refractory metal coil wound around the tungsten shank of one thermionic electrode and electrically insulated therefrom and which is supplied with lower current than is subsequently applied to said electrodes for the lamp operation.

    摘要翻译: 描述了一种改进的高压钠蒸汽灯,其具有包含在管状透光陶瓷封套内的电阻加热器装置,其还包含超过灯操作期间蒸发的量的钠 - 汞汞齐的储存器,以便在灯之前加热陶瓷封套 起动,从而降低启动电压要求。 在优选实施例中,所述电阻加热器装置包括缠绕在一个热离子电极的钨柄上并与其电绝缘的难熔金属线圈,并且被供应的电流低于随后施加到用于灯操作的所述电极的电流。

    Transparent aluminum oxynitride-based ceramic article
    3.
    发明授权
    Transparent aluminum oxynitride-based ceramic article 失效
    透明氧氮化铝基陶瓷制品

    公开(公告)号:US5231062A

    公开(公告)日:1993-07-27

    申请号:US565058

    申请日:1990-08-09

    摘要: This invention provides a transparent aluminum magnesium oxynitride ceramic, wherein greater than 0.5 weight percent of the total ceramic composition is magnesium oxide. The ceramic article of the present invention is useful in applications where it is desirable to have a transparent ceramic including, for example, in orthodontic brackets, ferrules, and gas tight envelopes.

    摘要翻译: 本发明提供了一种透明的铝镁氧氮化物陶瓷,其中总陶瓷组合物的大于0.5重量%是氧化镁。 本发明的陶瓷制品可用于希望具有例如在正牙托槽,套圈和气密封套中的透明陶瓷的应用中。

    Optical fiber ferrule
    5.
    发明授权
    Optical fiber ferrule 失效
    光纤套圈

    公开(公告)号:US5631986A

    公开(公告)日:1997-05-20

    申请号:US235169

    申请日:1994-04-29

    IPC分类号: G02B6/36 G02B6/38

    摘要: A ceramic optical fiber ferrule is constructed from CaTiO.sub.3 (calcium titanate) or CeO.sub.2 --ZrO.sub.2 (ceria-zirconia). The ferrule is PC-radiused and thus includes a first, convex end having a predetermined radius of curvature, a second end, and an axial bore which joins the first and second ends. An optical fiber can be fixedly positioned within the bore and a terminal end of the optical fiber can be created by standard polishing or grinding techniques which is coplanar with the first, convex end of the ferrule.

    摘要翻译: 陶瓷光纤套圈由CaTiO3(钛酸钙)或CeO2-ZrO2(二氧化铈 - 氧化锆)构成。 套圈是PC弧形的,因此包括具有预定曲率半径的第一凸起端,第二端和连接第一端和第二端的轴向孔。 可以将光纤固定地定位在孔内,并且可以通过与套圈的第一凸起端共面的标准抛光或研磨技术来产生光纤的终端。

    High pressure sodium vapor lamp having resistance heater means
    7.
    发明授权
    High pressure sodium vapor lamp having resistance heater means 失效
    具有电阻加热器装置的高压钠蒸汽灯

    公开(公告)号:US4459513A

    公开(公告)日:1984-07-10

    申请号:US403901

    申请日:1982-07-30

    IPC分类号: H01J61/56 H05B41/16

    CPC分类号: H01J61/56

    摘要: An improved high pressure sodium vapor lamp is described having resistance heater means contained within a tubular light-transmitting ceramic envelope that further contains a reservoir of sodium-mercury amalgam in excess of the quantity vaporized during lamp operation and which are supplied by electric current other than the lamp current responsive to a rise in the lamp operating voltage to reduce the quantity of amalgam being vaporized during lamp operation to help maintain said lamp operation at a relatively constant voltage. In a preferred embodiment, said resistance heater means comprises a refractory metal coil wound around the tungsten shank at one thermionic electrode and electrically insulated therefrom, with said thermionic electrode including a tubular metal inlead serving as the amalgam reservoir, and with the electric current being supplied at a lower value to said refractory metal coil than being supplied to said thermionic electrode.

    摘要翻译: 描述了一种改进的高压钠蒸汽灯,其具有包含在管状透光陶瓷外壳内的电阻加热器装置,其进一步包含超过在灯操作期间蒸发的量的钠 - 汞汞齐的储存器,并且由除了 灯电流响应于灯工作电压的升高,以减少在灯操作期间汽化的汞齐的量,以帮助将灯操作保持在相对恒定的电压。 在优选实施例中,所述电阻加热器装置包括在一个热离子电极周围缠绕在钨柄上并与其电绝缘的难熔金属线圈,其中所述热离子电极包括作为汞齐储存器的管状金属,并且电流被供应 比所述耐热金属线圈的值低。