Extra-high pressure discharge lamp
    131.
    发明授权
    Extra-high pressure discharge lamp 有权
    超高压放电灯

    公开(公告)号:US08013532B2

    公开(公告)日:2011-09-06

    申请号:US12292913

    申请日:2008-12-01

    IPC分类号: H01J17/04 H01J61/04

    CPC分类号: H01J61/86 H01J61/0735

    摘要: An extra-high pressure discharge lamp, comprises an optical transparent light emitting section, sealing sections connected to the light emitting section, a pair of electrodes which face each other in the light emitting section, wherein one of the electrodes having a thick portion, a thin portion and an intermediate portion which is formed between the thick portion and the thin portion, wherein 0.15 mg/mm3 of mercury is enclosed in the light emitting portion, and wherein the number of crystal grains which exist on a cross section perpendicular to an axis of the one of the electrodes is three.

    摘要翻译: 一种超高压放电灯,包括光透明发光部,连接到发光部的密封部,在发光部中彼此相对的一对电极,其中,一个电极具有厚部, 薄壁部分和形成在厚部分和薄部分之间的中间部分,其中0.15mg / mm 3的汞被包围在发光部分中,并且其中存在于垂直于轴线的横截面上的晶粒数 的一个电极是三个。

    Lighting apparatus for high-pressure discharge lamp and projector
    132.
    发明申请
    Lighting apparatus for high-pressure discharge lamp and projector 有权
    高压放电灯和投影仪照明装置

    公开(公告)号:US20110128508A1

    公开(公告)日:2011-06-02

    申请号:US12926616

    申请日:2010-11-30

    IPC分类号: H05B41/16 G03B21/20

    摘要: A lighting apparatus for a high-pressure discharge lamp that has an electric discharge container made of quartz glass, and containing a pair of counter electrodes and a power supply unit that supplies AC current to the high-pressure discharge lamp. The power supply unit has a stationary power lighting mode and a modulated power lighting mode that supplies current having power less than power in the stationary power lighting mode. The modulated power lighting mode supplies a rectangular AC current having a first term and a second term. A mean high-frequency current value supplied to a first electrode is greater than a mean current value supplied to a second electrode in the first term. A current is supplied to the second electrode for a term longer than the half-cycle period in the second term, the current being lower than the mean high-frequency current value supplied to the first electrode.

    摘要翻译: 一种用于高压放电灯的照明装置,其具有由石英玻璃制成的放电容器,并且包含一对反电极和向高压放电灯提供交流电的电源单元。 电源单元具有固定功率照明模式和在固定功率照明模式中提供具有小于功率的功率的电流的调制电力照明模式。 调制功率照明模式提供具有第一项和第二项的矩形AC电流。 提供给第一电极的平均高频电流值大于在第一项中提供给第二电极的平均电流值。 在第二项中,向第二电极提供长于半周期周期的电流,该电流低于提供给第一电极的平均高频电流值。

    Extra-high pressure mercury lamp
    133.
    发明申请
    Extra-high pressure mercury lamp 有权
    超高压汞灯

    公开(公告)号:US20100156288A1

    公开(公告)日:2010-06-24

    申请号:US12654334

    申请日:2009-12-17

    IPC分类号: H01J17/26

    CPC分类号: H01J61/86 H01J61/0732

    摘要: An extra-high pressure mercury lamp includes an arc tube made of quartz glass. The lamp includes an arc tube portion and sealing portions connected to the arc tube portion, and encloses 0.15 mg/mm3 or more of mercury. A pair of electrodes are disposed face to face in the arc tube. Each electrode has a rod portion and a base end portion. The base end portion of each electrode is embedded in one of the sealing portions. One of the pair of electrodes serves as a cathode and includes a head portion, which has a larger diameter than the rod portion. A cylinder portion is connected to a rear end portion of the head portion. The cylinder portion extends in the axis direction of the electrode and surrounds the rod portion. The cylinder portion has an inner surface separated from the rod portion.

    摘要翻译: 超高压汞灯包括由石英玻璃制成的电弧管。 灯包括电弧管部分和连接到电弧管部分的密封部分,并且包含0.15mg / mm 3或更多的汞。 一对电极面对面设置在电弧管中。 每个电极具有杆部和基端部。 每个电极的基端部嵌入在一个密封部分中。 一对电极中的一个用作阴极并且包括头部,其具有比杆部分更大的直径。 气缸部分连接到头部的后端部分。 圆筒部分在电极的轴线方向上延伸并围绕杆部分。 圆筒部分具有与棒部分分离的内表面。

    Extra-high pressure discharge lamp
    135.
    发明申请
    Extra-high pressure discharge lamp 有权
    超高压放电灯

    公开(公告)号:US20090140654A1

    公开(公告)日:2009-06-04

    申请号:US12292913

    申请日:2008-12-01

    IPC分类号: H01J61/04

    CPC分类号: H01J61/86 H01J61/0735

    摘要: An extra-high pressure discharge lamp, comprises an optical transparent light emitting section, sealing sections connected to the light emitting section, a pair of electrodes which face each other in the light emitting section, wherein one of the electrodes having a thick portion, a thin portion and an intermediate portion which is formed between the thick portion and the thin portion, wherein 0.15 mg/mm3 of mercury is enclosed in the light emitting portion, and wherein the number of crystal grains which exist on a cross section perpendicular to an axis of the one of the electrodes is three.

    摘要翻译: 一种超高压放电灯,包括光透明发光部,连接到发光部的密封部,在发光部中彼此相对的一对电极,其中,一个电极具有厚部, 薄壁部分和形成在厚部分和薄部分之间的中间部分,其中0.15mg / mm 3的汞被包围在发光部分中,并且其中存在于垂直于轴线的横截面上的晶粒数 的一个电极是三个。

    Motor drive apparatus capable of accurately estimating demagnetization of permanent magnet motor
    136.
    发明授权
    Motor drive apparatus capable of accurately estimating demagnetization of permanent magnet motor 有权
    电机驱动装置能够精确估计永磁电动机的退磁

    公开(公告)号:US07531982B2

    公开(公告)日:2009-05-12

    申请号:US10559932

    申请日:2004-07-08

    IPC分类号: H02P27/00

    摘要: A map holding unit holds, in the form of a map, a voltage control amount of the q axis in a case where no demagnetization of a permanent magnet motor occurs. Based on a motor revolution number, namely the number of revolutions of the motor provided from a revolution number detection unit, a demagnetized state calculation unit calculates a rotational angular velocity. Then, based on the voltage control amount from the map holding unit, a voltage control amount to be controlled that is provided from a PI control unit and the rotational angular velocity, the demagnetized state calculation unit calculates an amount of demagnetization and outputs, if the amount of demagnetization is greater than a predetermined value, an operation signal for controlling the operation of the permanent magnet motor.

    摘要翻译: 在不发生永磁电动机的退磁的情况下,地图保持单元以映射的形式保持q轴的电压控制量。 基于电动机转数,即从转数检测单元提供的电动机的转数,去磁状态计算单元计算旋转角速度。 然后,基于来自地图保持单元的电压控制量,从PI控制单元提供的要控制的电压控制量和旋转角速度,去磁状态计算单元计算退磁量并输出,如果 退磁量大于预定值,用于控制永磁电动机的操作的操作信号。