Dual high-pressure discharge lamp projector with multi-waveform current generation for greater luminous flux change control and extended lamp life
    1.
    发明授权
    Dual high-pressure discharge lamp projector with multi-waveform current generation for greater luminous flux change control and extended lamp life 有权
    双高压放电灯投影机具有多波形电流产生,可实现更大的光通量变化控制和延长灯泡寿命

    公开(公告)号:US08979275B2

    公开(公告)日:2015-03-17

    申请号:US13171205

    申请日:2011-06-28

    IPC分类号: G03B21/20 G03B21/14

    摘要: The projector uses two lamps, which are high-pressure discharge lamps with the same rated power, as light sources. The projector includes: a first alternating-current generator configured to generate a lamp current to be supplied to one of the lamps, based on an input control signal; a second alternating-current generator configured to generate a lamp current to be supplied to the other lamp, based on an input control signal; and a controller configured to control the lamp currents to have a same period and to be out of phase, by inputting a control signal to each of the first and the second alternating-current generators.

    摘要翻译: 投影机使用两个灯,它们是具有相同额定功率的高压放电灯,如光源。 投影机包括:第一交流发电机,被配置为基于输入控制信号产生要提供给一个灯的灯电流; 第二交流发电机,其被配置为基于输入控制信号产生要提供给另一个灯的灯电流; 以及控制器,其被配置为通过向第一和第二交流发电机中的每一个输入控制信号来控制灯电流具有相同的周期并且相位差。

    PROJECTOR, LIGHTING DEVICE FOR HIGH-PRESSURE DISCHARGE LAMP USED IN THE PROJECTOR, AND METHOD FOR LIGHTING HIGH-PRESSURE DISCHARGE LAMP
    6.
    发明申请
    PROJECTOR, LIGHTING DEVICE FOR HIGH-PRESSURE DISCHARGE LAMP USED IN THE PROJECTOR, AND METHOD FOR LIGHTING HIGH-PRESSURE DISCHARGE LAMP 有权
    投影机用于投影机中使用的高压放电灯的照明装置,以及用于照射高压放电灯的方法

    公开(公告)号:US20120026471A1

    公开(公告)日:2012-02-02

    申请号:US13171205

    申请日:2011-06-28

    IPC分类号: G03B21/14 H05B41/231

    摘要: The projector uses two lamps, which are high-pressure discharge lamps with the same rated power, as light sources. The projector includes: a first alternating-current generator configured to generate a lamp current to be supplied to one of the lamps, based on an input control signal; a second alternating-current generator configured to generate a lamp current to be supplied to the other lamp, based on an input control signal; and a controller configured to control the lamp currents to have a same period and to be out of phase, by inputting a control signal to each of the first and the second alternating-current generators.

    摘要翻译: 投影机使用两个灯,它们是具有相同额定功率的高压放电灯,如光源。 投影机包括:第一交流发电机,被配置为基于输入控制信号产生要提供给一个灯的灯电流; 第二交流发电机,其被配置为基于输入控制信号产生要提供给另一个灯的灯电流; 以及控制器,其被配置为通过向第一和第二交流发电机中的每一个输入控制信号来控制灯电流具有相同的周期并且相位差。

    High-pressure discharge lamp lighting device, high-pressure discharge lamp device using the same, projector using the high-pressure discharge lamp device, and lighting method for high-pressure discharge lamp
    7.
    发明授权
    High-pressure discharge lamp lighting device, high-pressure discharge lamp device using the same, projector using the high-pressure discharge lamp device, and lighting method for high-pressure discharge lamp 有权
    高压放电灯照明装置,使用其的高压放电灯装置,使用高压放电灯装置的投影仪和高压放电灯的照明方法

    公开(公告)号:US09030130B2

    公开(公告)日:2015-05-12

    申请号:US13202539

    申请日:2011-01-17

    摘要: From a start of a lighting until a predetermined time period passes, a high-pressure discharge lamp is supplied with a constant current (Ib) until the lamp power reaches a predetermined wattage (Plow). When the lamp power reaches the wattage (Plow), current is supplied to maintain the lamp power at the wattage (Plow). After another predetermined time period passes, current is supplied to maintain the lamp power at a rated lamp wattage (Pr). While this lamp power is being maintained, the size of the lamp current is limited to a current limit (Ia). The current (Ib) and the wattage (Plow) satisfy a relationship Ia·0.7≦Ib≦Ia·0.9 and Pr·0.5 Plow≦Pr·0.9 to accelerate an initial building of luminous flux while reducing drainage to the electrodes.

    摘要翻译: 从点亮开始直到预定时间段过去,高压放电灯被供给恒定电流(Ib),直到灯功率达到预定瓦数(Plow)为止。 当灯泡功率达到功率(Plow)时,电流被提供以保持灯功率在瓦数(Plow)。 经过另一个预定的时间段后,提供电流以将灯功率保持在额定灯功率(Pr)。 在保持该灯功率的同时,灯电流的大小被限制为电流限制(Ia)。 电流(Ib)和功率(Plow)满足关系Ia·0.7≦̸ Ib≦̸ Ia·0.9和Pr·0.5 Plow≦̸ Pr·0.9,以加速光通量的初始建立,同时减少对电极的引流。

    HIGH-PRESSURE DISCHARGE LAMP LIGHTING DEVICE WITH ALTERNATING CURRENT FREQUENCY TIME PERIODS
    10.
    发明申请
    HIGH-PRESSURE DISCHARGE LAMP LIGHTING DEVICE WITH ALTERNATING CURRENT FREQUENCY TIME PERIODS 有权
    具有交替电流时间段的高压放电灯照明装置

    公开(公告)号:US20100134034A1

    公开(公告)日:2010-06-03

    申请号:US12697022

    申请日:2010-01-29

    IPC分类号: H05B41/36

    CPC分类号: H05B41/2928 Y02B20/208

    摘要: The high-pressure discharge lamp lighting device of the invention includes a lighting circuit for supplying an alternating current to a high-pressure discharge lamp to cause lighting, the high-pressure discharge lamp having an arc tube in which a halogen material is enclosed and a pair of electrodes is disposed, and each electrode having a protuberance at a tip thereof. A frequency of the alternating current varies without dependency on operating data that varies as a lighting time of the high-pressure discharge lamp elapses.

    摘要翻译: 本发明的高压放电灯点灯装置具有:向高压放电灯供给交流电以进行点灯的点灯电路,具有包围卤素材料的电弧管的高压放电灯和 设置一对电极,每个电极在其顶端具有突起。 交流电流的频率不依赖于随高压放电灯的点亮时间而变化的操作数据。