利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

717 条记录 (耗时 0.02 秒)

    Discharge lamp lighting apparatus
    4.
    发明授权
    Discharge lamp lighting apparatus 有权

    公开(公告)号：US09603228B2

    公开(公告)日：2017-03-21

    申请号：US14940295

    申请日：2015-11-13

    申请人： Murata Manufacturing Co., Ltd.

    发明人： Tsuyoshi Umemoto ,  Takafumi Toda

    IPC分类号： H05B41/288 ,  H05B41/292 ,  H05B41/38

    CPC分类号： H05B41/2887 ,  H05B41/2928 ,  H05B41/388 ,  Y02B20/202 ,  Y02B20/204

    摘要： A discharge lamp lighting apparatus includes an inverter circuit supplying an AC voltage to a discharge lamp and a resonant circuit that increases a supply voltage supplied to the discharge lamp. The inverter circuit is driven using a first frequency including a resonant frequency of the resonant circuit during a first period in which breakdown and a glow discharge are generated, driven using a second frequency including a resonant frequency of the resonant circuit, lower than the first frequency, during a second period in which an arc discharge is generated, and driven using a third frequency lower than the second frequency, during a third period. Further, a dead time is set in which both of a high-side switching device and a low-side switching device are turned off so that the dead time is longer in the second period than in the first period and the third period.

    HID LAMP ACOUSTIC RESONANCE SUPPRESSION METHOD AND BALLAST
    5.
    发明申请
    HID LAMP ACOUSTIC RESONANCE SUPPRESSION METHOD AND BALLAST 有权
    HID灯声学谐振抑制方法和压力

    公开(公告)号：US20160278190A1

    公开(公告)日：2016-09-22

    申请号：US14413463

    申请日：2014-03-12

    申请人： Shixue CAI ,  Zhongwei JIANG ,  SHENZHEN TECHONE TECH CO., LTD.

    发明人： Shixue CAI ,  Zhongwei JIANG

    IPC分类号： H05B41/36 ,  B01J19/12 ,  H05B41/292

    CPC分类号： H05B41/36 ,  B01J19/123 ,  B01J2219/0801 ,  B01J2219/1203 ,  H05B41/2887 ,  H05B41/2928 ,  Y02B20/208

    摘要： The invention provides a High Intensity Discharge (HID) lamp acoustic resonance suppression method. Whether acoustic resonance is produced or not is judged, and a frequency-modulated current frequency provided by a ballast when the acoustic resonance is produced to fulfill the aim of suppressing the acoustic resonance. The ballast includes an acoustic resonance elimination module. The invention has the beneficial effects that due to the additional arrangement of the acoustic resonance elimination module, acoustic resonance is maximally suppressed, and the optimal stability of a discharge arc is ensured. These characteristics enable the product to stably run for each type of lamp tube and different power.

    摘要翻译： 本发明提供了一种高强度放电（HID）灯声共振抑制方法。 判断是否产生声共振，以及当产生声共振时由镇流器提供的频率调制电流频率以达到抑制声共振的目的。 镇流器包括声共振消除模块。 本发明具有这样的有益效果：由于声共振消除模块的附加配置，最大限度地抑制了声共振，并且确保了放电电弧的最佳稳定性。 这些特性使产品能够稳定地运行各种类型的灯管和不同的功率。

    DISCHARGE LAMP DRIVING DEVICE, PROJECTOR, AND DISCHARGE LAMP DRIVING METHOD
    6.
    发明申请
    DISCHARGE LAMP DRIVING DEVICE, PROJECTOR, AND DISCHARGE LAMP DRIVING METHOD 有权
    放电灯驱动装置，投影仪和放电灯驱动方法

    公开(公告)号：US20160066399A1

    公开(公告)日：2016-03-03

    申请号：US14795386

    申请日：2015-07-09

    申请人： SEIKO EPSON CORPORATION

    发明人： Yoichi NAKAGOMI ,  Tetsuo TERASHIMA

    IPC分类号： H05B41/392 ,  H04N9/31

    CPC分类号： H05B41/3927 ,  G03B21/2026 ,  G03B21/2053 ,  H04N9/312 ,  H04N9/3155 ,  H04N9/3197 ,  H05B41/2928 ,  Y02B20/204 ,  Y02B20/208

    摘要： A discharge lamp driving device according to an aspect includes: a discharge lamp driving section configured to supply driving power to a discharge lamp including electrodes and a control section configured to control the discharge lamp driving section. The control section is configured to perform a steady lighting driving for supplying first driving power to the discharge lamp and a high power driving for supplying second driving power larger than the first driving power to the discharge lamp. The magnitude of heat load on the electrodes by the high power driving changes on the basis of the first driving power.

    摘要翻译： 根据本发明的放电灯驱动装置包括：放电灯驱动部，被配置为向包括电极的放电灯提供驱动电力;以及控制部，被配置为控制放电灯驱动部。 所述控制部被配置为进行向所述放电灯供给第一驱动电力的稳定点亮驱动和向所述放电灯供给比所述第一驱动电力大的第二驱动电力的高功率驱动。 大功率驱动电极上的热负荷的大小根据第一驱动功率而变化。

    Light source device, method of driving discharge lamp, and projector
    7.
    发明授权
    Light source device, method of driving discharge lamp, and projector 有权
    光源装置，驱动放电灯的方法和投影仪

    公开(公告)号：US09146451B2

    公开(公告)日：2015-09-29

    申请号：US13572358

    申请日：2012-08-10

    申请人： Junichi Suzuki ,  Satoshi Kito

    发明人： Junichi Suzuki ,  Satoshi Kito

    IPC分类号： G03B21/20 ,  H05B41/288 ,  H05B41/292

    CPC分类号： G03B21/2026 ,  G03B21/2053 ,  H05B41/2887 ,  H05B41/2928 ,  Y02B20/202

    摘要： A light source device includes a discharge lamp, and a discharge lamp driving device that supplies a driving current to a pair of electrodes. The discharge lamp driving device includes an alternating current supply unit that supplies an alternating current with a frequency equal to or higher than 1 kHz and equal to or lower than 10 GHz to the electrodes, and a direct current supply unit that supplies a direct current to the electrodes.

    摘要翻译： 光源装置包括放电灯和向一对电极提供驱动电流的放电灯驱动装置。 放电灯驱动装置包括向电极供给等于或高于1kHz且等于或低于10GHz的频率的交流电的交流电源单元，以及将直流电流提供给 电极。

    Method and circuit for lighting high-pressure discharge lamp
    8.
    发明授权
    Method and circuit for lighting high-pressure discharge lamp 有权
    高压放电灯照明方法及电路

    公开(公告)号：US09099293B2

    公开(公告)日：2015-08-04

    申请号：US14483618

    申请日：2014-09-11

    申请人： Phoenix Electric Co., Ltd.

    发明人： Atsuji Nakagawa ,  Shiyoshi Cho ,  Shinichi Ushijima ,  Tetsuya Gouda

    IPC分类号： H01J61/52 ,  H01J61/82 ,  H05B41/14

    CPC分类号： H01J61/523 ,  H01J61/822 ,  H05B41/14 ,  H05B41/2928 ,  Y02B20/208

    摘要： A method of lighting a high-pressure discharge lamp is configured to change a power to be supplied to the high-pressure discharge lamp in accordance with a luminance parameter of an image content. The method includes switching between a low temperature operation and a high temperature operation so as to maintain a condition that mercury encapsulated into an arc tube part of the high-pressure discharge lamp constantly partially deposits without evaporating. The low temperature operation is performed where the temperature in the arc tube part is less than or equal to the deposition temperature of the mercury, whereas the high temperature operation is performed where the temperature in the arc tube part is greater than the deposition temperature of the mercury.

    摘要翻译： 照明高压放电灯的方法被配置为根据图像内容的亮度参数来改变要提供给高压放电灯的功率。 该方法包括在低温操作和高温操作之间进行切换，以便保持将高压放电灯的电弧管部分中的汞恒定地部分沉积而不蒸发的状态。 在电弧管部分的温度小于或等于汞的沉积温度的情况下执行低温操作，而在电弧管部分的温度大于其的淀积温度的情况下进行高温操作 汞。

    METHOD FOR OPERATING A DISCHARGE LAMP AND PROJECTION ARRANGEMENT
    9.
    发明申请
    METHOD FOR OPERATING A DISCHARGE LAMP AND PROJECTION ARRANGEMENT 有权
    操作放电灯和投影安排的方法

    公开(公告)号：US20150131063A1

    公开(公告)日：2015-05-14

    申请号：US14532022

    申请日：2014-11-04

    申请人： OSRAM GmbH

    发明人： Marc Czichy ,  Norbert Magg

    IPC分类号： G03B21/20 ,  H05B41/16

    CPC分类号： H05B41/16 ,  H05B41/2928 ,  H05B41/38 ,  H05B41/3928

    摘要： Various embodiments provide a projection arrangement. The projection arrangement may include a discharge lamp; and a ballast for the discharge lamp. The ballast is designed to provide, during operation of the projection arrangement, a lamp current in the form of alternating current and having an average frequency and a preset waveform, which has a preset commutation scheme, to the discharge lamp. The preset commutation scheme is preset by a preset time sequence of commutations of the lamp current. The ballast is designed to provide the lamp current in such a way that the preset commutation scheme of the lamp current is deviated from repeatedly with at least one preset intervening time period by at least one DC phase with a preset time duration.

    摘要翻译： 各种实施例提供一种投影装置。 投影装置可以包括放电灯; 和放电灯的镇流器。 镇流器被设计成在投影装置的操作期间提供交流电的形式的灯电流，并且具有平均频率和具有预设换向方案的预设波形到放电灯。 预设换向方案由灯电流的预定时间顺序预设。 镇流器被设计成以这样的方式提供灯电流，使得灯电流的预设换向方案在至少一个预设的中间时间段内具有预设的持续时间的至少一个DC相位而重复地偏离。

    High pressure discharge lamp lighting apparatus
    10.
    发明授权
    High pressure discharge lamp lighting apparatus 有权
    高压放电灯照明装置

    公开(公告)号：US08952633B2

    公开(公告)日：2015-02-10

    申请号：US14236463

    申请日：2012-07-10

    申请人： Atsushi Imamura ,  Takanori Samejima ,  Minoru Fukuda

    发明人： Atsushi Imamura ,  Takanori Samejima ,  Minoru Fukuda

    IPC分类号： H05B37/02 ,  H05B41/24 ,  H05B41/288 ,  H05B41/292

    CPC分类号： H05B41/24 ,  H05B41/2887 ,  H05B41/2928 ,  Y02B20/202 ,  Y02B20/208

    摘要： In a lighting apparatus containing a high pressure discharge lamp, an alternating current supplied to the discharge lamp at the time of steady lighting of the frequency (basic frequency) selected from a range between 60 and 1000 Hz and a low frequency having a frequency selected from a range between 5 and 200 Hz lower than the basic frequency is generated alternately. The frequency of the low frequency wave is changed in response to the change of the lighting voltage of the discharge lamp. The supply period of the basic frequency is increased and decreased little by little by every predetermined time.

    摘要翻译： 在包含高压放电灯的照明装置中，在从60Hz和1000Hz之间的频率选择的频率（基本频率）的稳定点亮时提供给放电灯的交流电流和频率选自 交替地产生比基本频率低5〜200Hz的范围。 响应于放电灯的点亮电压的变化，低频波的频率发生变化。 基本频率的供给周期每隔预定时间逐渐增加和减少。