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1. 发明申请

US20170155880A1 PROJECTION-TYPE IMAGE DISPLAY DEVICE 有权
公开(公告)号：US20170155880A1
公开(公告)日：2017-06-01
申请号：US15322980
申请日：2014-07-04
申请人： Hitachi Maxell, Ltd.
发明人： Eriko NAGATA , Shinji ONODERA , Satomi MORISHITA , Naoya OKA , Masaaki IWANAGA
IPC分类号： H04N9/31 , G03B21/20 , G09G3/00 , G06T5/00 , H04N9/44
CPC分类号： H04N9/3191 , G03B21/2026 , G03B21/2053 , G06F3/0483 , G06T5/00 , G09G3/002 , G09G2320/0233 , G09G2320/045 , G09G2320/0626 , G09G2320/066 , G09G2320/0673 , G09G2320/08 , G09G2354/00 , H04N5/74 , H04N9/3155 , H04N9/3182 , H04N9/44 , H05B41/2928 , H05B41/3928
摘要： This projection-type image display device is provided with: a lamp drive unit that drives a lamp; a lamp voltage detection unit that detects a lamp interelectrode voltage (hereinafter referred to as a lamp voltage); an image correction unit that corrects image qualities of image signals to be supplied to an image display element; and a control unit that controls a correction quantity of the image correction unit on the basis of the lamp voltage detected by means of the lamp voltage detection unit. Consequently, deterioration of visibility of a projection image can be suitably suppressed.

2. 发明授权

US09578726B2 Discharge lamp lighting apparatus and projector 有权
标题翻译：放电灯照明设备和投影机
公开(公告)号：US09578726B2
公开(公告)日：2017-02-21
申请号：US13672149
申请日：2012-11-08
申请人： USHIO DENKI KABUSHIKI KAISHA
发明人： Masashi Okamoto
IPC分类号： H05B41/392 , G03B21/20 , H05B41/16 , G03B21/14 , H05B41/292
CPC分类号： H05B41/16 , G03B21/14 , G03B21/2053 , H05B41/2928 , H05B41/3928 , Y02B20/202
摘要： A discharge lamp lighting apparatus for lighting a discharge lamp in which an electric discharge medium, which contains xenon, is enclosed in an electric discharge container, and a pair of cathode electrode and anode electrode for main discharge is arranged to face each other, comprises a starter for generating dielectric breakdown in the electric discharge container of a discharge lamp, and a power supply circuit for supplying discharge current to the discharge lamp, wherein the power supply circuit has an output current modulation circuit for modulating the magnitude of current passed through the discharge lamp in at least a lighting steady state, according to a modulation signal, and wherein the output current modulation circuit controls speed of change so as to be 2.6 A or less per millisecond in case the magnitude of the lamp current per square millimeter in a cross section of the cathode electrode decreases.
摘要翻译：一种放电灯点亮装置，用于点燃放电灯，其中包含氙的放电介质被封装在放电容器中，并且一对用于主放电的阴极电极和阳极电极被布置为彼此面对，包括用于在放电灯的放电容器中产生电介质击穿的起动器和用于向放电灯供给放电电流的电源电路，其中，电源电路具有输出电流调制电路，用于调制通过放电的电流的大小在调光信号中至少具有照明稳定状态的灯，并且其中，输出电流调制电路控制变化速度，使得在每十亿分之一平方毫米的灯电流的大小的情况下，每毫秒为2.6A或更小阴极电极的截面减小。

3. 发明授权

US08552657B2 Method of driving a gas-discharge lamp 失效
标题翻译：驱动气体放电灯的方法
公开(公告)号：US08552657B2
公开(公告)日：2013-10-08
申请号：US12745911
申请日：2008-12-01
申请人： Jens Pollmann-Retsch
发明人： Jens Pollmann-Retsch
IPC分类号： H05B41/16
CPC分类号： H05B41/3928 , Y02B20/202
摘要： The invention describes a method of driving a gas-discharge lamp (1) wherein, at any one time, the lamp (1) is driven according to one of a plurality of different driving schemes (DS1, DS2) and the lamp power is controlled according to one of a plurality of different power control strategies (PCS, PCf, and wherein the lamp (1) is driven according to a first driving scheme (DS1) prior to a trigger event (tsw) and, upon occurrence of the trigger event (tsw), a driving scheme switchover is effected so that the lamp (1) is subsequently driven according to a second driving scheme (DS2), and wherein, in temporal dependence on the trigger event (tsw), a power controls strategy switch over is effected from a first power control strategy (PCs) to a second power control strategy (PCf) such that the lamp power is subsequently controlled according to the second power control strategy(PCf) for a time interval (tm, tf).
摘要翻译：本发明描述了一种驱动气体放电灯（1）的方法，其中在任何时候，根据多种不同的驱动方案（DS1，DS2）中的一种驱动灯（1）并控制灯功率根据多个不同的功率控制策略（PCS，PCf）中的一个，并且其中在触发事件（tsw）之前根据第一驱动方案（DS1）驱动灯（1），并且在触发事件发生时（tsw），进行驱动方案切换，使得灯（1）随后根据第二驱动方案（DS2）被驱动，并且其中，在时间上依赖于触发事件（tsw），功率控制策略切换从第一功率控制策略（PC）到第二功率控制策略（PCf）实现，使得灯功率随后根据第二功率控制策略（PCf）被控制一段时间间隔（tm，tf）。

4. 发明申请

US20130249397A1 System for Monitoring and Controlling High Intensity Discharge (HID) Lamps 有权
标题翻译：用于监控和控制高强度放电（HID）灯的系统
公开(公告)号：US20130249397A1
公开(公告)日：2013-09-26
申请号：US13992239
申请日：2011-08-03
申请人： Deepak Chandran , Sanath Kumar
发明人： Deepak Chandran , Sanath Kumar
IPC分类号： H05B41/39
CPC分类号： H05B41/39 , H05B33/0842 , H05B33/0854 , H05B33/086 , H05B37/0245 , H05B37/0263 , H05B41/3928
摘要： The present invention provides a system for monitoring and controlling high intensity discharge (HID) lamps. The system includes a digital electronic ballast integrated with PLCC modem and PLCC concentrator. The digital electronic ballast is capable of monitoring and controlling operation of each of the HID lamp in the system. The PLCC concentrator is located in AC Power line network and connected to each of the digital electronic ballast connected to the respective HID lamps in an AC power line network. Further, the PLCC concentrator sends the command signals such as lamp ON/OFF, lamp dimming, lamp scheduling rules to the digital electronic ballast. The PLCC concentrator also receives lamp status, real time electric parameters, failure information, end of lamp life (EOLL) or lamp burning hours, temperature conditions and warning from the digital electronic ballast thereby the PLCC concentrator provide reports to a server to enable remote monitoring of the network.
摘要翻译：本发明提供一种用于监测和控制高强度放电（HID）灯的系统。该系统包括与PLCC调制解调器和PLCC集中器集成的数字电子镇流器。数字电子镇流器能够监测和控制系统中每个HID灯的操作。 PLCC集中器位于交流电源线网络中，并连接到连接到交流电源线网络中相应HID灯的每个数字电子镇流器。此外，PLCC集中器将数字电子镇流器等指示信号，例如灯开/关，灯调光，灯调度规则。 PLCC集中器还从数字电子镇流器接收灯状态，实时电参数，故障信息，灯寿命结束（EOLL）或灯泡燃烧时间，温度条件和警告，从而PLCC集中器向服务器提供报告以启用远程监控的网络。

5. 发明授权

US07928669B2 Color control of a discharge lamp during dimming 失效
标题翻译：在调光期间放电灯的颜色控制
公开(公告)号：US07928669B2
公开(公告)日：2011-04-19
申请号：US12028068
申请日：2008-02-08
申请人： Jianwu Li , Alan G. Chalmers
发明人： Jianwu Li , Alan G. Chalmers
IPC分类号： H05B37/02
CPC分类号： H05B41/3928 , Y02B20/202
摘要： A ballast circuit is suitable for driving a high intensity discharge lamp in at least two power modes including a nominal power mode for driving the high intensity discharge lamp at a nominal power and a reduced power dimming mode for driving the lamp at less than the nominal power. The lamp ballast circuit generates a first alternating current waveform during the nominal power mode and generates a background alternating current waveform in the reduced power mode which is perturbed at intervals by a high intensity pulse which helps to reduce the change in correlated color temperature which would otherwise occur in the dimming mode.
摘要翻译：镇流器电路适用于以至少两种功率模式驱动高强度放电灯，包括用于以标称功率驱动高强度放电灯的标称功率模式和用于以小于标称功率驱动灯的降低功率调光模式。灯镇流器电路在标称功率模式期间产生第一交流电波形，并且以降低功率模式产生背景交流电波形，其以高强度脉冲间隔干扰，这有助于减小相关色温的变化发生在调光模式。

6. 发明申请

US20100244720A1 HIGH PRESSURE DISCHARGE LAMP LIGHT SOURCE DEVICE 有权
标题翻译：高压放电灯光源设备
公开(公告)号：US20100244720A1
公开(公告)日：2010-09-30
申请号：US12750064
申请日：2010-03-30
申请人： Takuya TSUKAMOTO , Minoru FUKUDA , Tomoyoshi ARIMOTO
发明人： Takuya TSUKAMOTO , Minoru FUKUDA , Tomoyoshi ARIMOTO
IPC分类号： H05B41/36
CPC分类号： H05B41/2928 , H05B41/2882 , H05B41/3928 , Y02B20/202 , Y02B20/208
摘要： For maintaining the projections of the electrode tip ends in the ideal condition and maintaining a stable arc even if the lamp is lighted with a lamp power of at most 70% of the rated electric power, a high pressure discharge lamp light source device is provided, comprised of a high pressure discharge lamp having a discharge vessel made from quartz glass and a pair of electrodes arranged oppositely to each other with a spacing of at most 2.0 mm, each electrode having a projection formed at a tip end thereof, and mercury of at least 0.20 mg/mm3 and a halogen being enclosed in said discharge vessel; and a power supply device for supplying alternating current to said high pressure discharge lamp, wherein the power supply device is adapted to switch between a nominal electric power lighting mode and a low electric power lighting mode, said current in the low electric power lighting mode having a defined current value in the range of 40 to 70% of a nominal electric power consumption, and wherein said power supply device, in the low electric power lighting mode, is adapted to alternatingly supply to said high pressure discharge lamp a base current having a defined frequency chosen from a range between 100 Hz and 5 kHz and a boost current having a higher current value than a current value of said base current.
摘要翻译：为了将电极末端的突起保持在理想状态并保持稳定的电弧，即使在灯功率达到额定功率的70％以上的情况下，提供高压放电灯光源装置，包括具有由石英玻璃制成的放电容器的高压放电灯和彼此相对设置的间隔至多为2.0mm的一对电极，每个电极的顶端形成有突起，至少0.20mg / mm 3，卤素封闭在所述放电容器中; 以及用于向所述高压放电灯提供交流电的电源装置，其中所述电源装置适于在标称电力照明模式和低电力照明模式之间切换，所述低电力照明模式中的所述电流具有在标称电力消耗的40至70％的范围内的限定电流值，并且其中所述电源装置在低电力照明模式中适于对所述高压放电灯交替地供应具有从100Hz和5kHz之间的范围选择的定义频率和具有比所述基极电流的当前值更高的电流值的升压电流。

7. 发明申请

US20100109549A1 METHOD AND DEVICE FOR DRIVING A GAS DISCHARGE LAMP 审中-公开
标题翻译：用于驱动气体放电灯的方法和装置
公开(公告)号：US20100109549A1
公开(公告)日：2010-05-06
申请号：US12525087
申请日：2008-02-01
申请人： Ivo Wilhelmus Johannes Marie Rutten
发明人： Ivo Wilhelmus Johannes Marie Rutten
IPC分类号： H05B41/30
CPC分类号： H05B41/3928 , Y02B20/202
摘要： A method is described for driving a lamp (L), specifically but not necessarily a gas discharge lamp. The lamp is driven with a pulse width modulated lamp current. The lamp current frequency is a constant frequency (fref) modulated with a random or at least pseudorandom noise signal (Sn). Further, an apparatus (20) for powering a gas discharge lamp (L) is described.
摘要翻译：描述了用于驱动灯（L）的方法，具体但不一定是气体放电灯。灯用脉宽调制灯电流驱动。灯电流频率是用随机或至少伪随机噪声信号（Sn）调制的恒定频率（fref）。此外，描述了用于为气体放电灯（L）供电的设备（20）。

8. 发明授权

US07688000B2 Method and device for driving a metal halide lamp 失效
标题翻译：用于驱动金属卤化物灯的方法和装置
公开(公告)号：US07688000B2
公开(公告)日：2010-03-30
申请号：US10578649
申请日：2004-11-11
申请人： Johan Leopold Victorina Hendrix
发明人： Johan Leopold Victorina Hendrix
IPC分类号： H05B37/02
CPC分类号： H05B41/3928 , Y02B20/202 , Y10S315/05
摘要： A gas discharge lamp (2) is operated with an alternating current. A positive lamp current (Ip) is generated with a positive current intensity (Ip) for a positive duration (τp). A negative lamp current (IN) is generated with a negative current intensity (IN) for a negative duration (τN). A duty cycle (D=τp/(τp+τN)) differs from 50%. A current ratio (R=Ip/IN) differs from 1.
摘要翻译：气体放电灯（2）以交流电动作。产生正电流强度（Ip）为正持续时间（τp）的正灯电流（Ip）。在负持续时间（τN）下产生负电流强度（IN）的负灯电流（IN）。占空比（D =τp/（τp+τN））不同于50％。电流比（R = Ip / IN）不同于1。

9. 发明授权

US07615937B2 High-pressure discharge lamp lighting device and lighting fixture 失效
标题翻译：高压放电灯照明装置及照明灯具
公开(公告)号：US07615937B2
公开(公告)日：2009-11-10
申请号：US10598463
申请日：2005-03-25
申请人： Masanori Mishima
发明人： Masanori Mishima
IPC分类号： G05F1/00
CPC分类号： H05B41/3928 , H05B41/2886 , Y02B20/202 , Y10S315/04
摘要： An object of the invention is to provide a high-pressure discharge lamp lighting device capable of executing dimming up to a lower luminous flux level than the dimming lower limit obtained by performing constant-current control in related arts.A high-pressure discharge lamp lighting device of the invention includes power conversion unit for supplying AC power to a high-pressure discharge lamp as a load with a DC power supply as an input power supply for performing all lighting or dimming lighting. In an area where the voltage across the high-pressure discharge lamp grows as dimming deepens, the output characteristic of the power conversion unit is a characteristic for increasing the output current of the power conversion unit in response to an increase in the output voltage of the power conversion unit. The ratio of the increase in the output current to the increase in the output voltage is made roughly constant or the ratio of the increase in the output current to the increase in the output voltage is made larger as dimming becomes deeper.
摘要翻译：本发明的目的是提供一种高压放电灯点亮装置，该高压放电灯点亮装置能够进行比通过在现有技术中进行恒定电流控制而获得的调光下限更低的光通量水平的调光。本发明的高压放电灯点灯装置包括：电力转换单元，用于以直流电源作为用于执行所有照明或调光照明的输入电源的高压放电灯作为负载提供AC电力。在高压放电灯两端的电压随着调光加深而增加的区域中，功率转换单元的输出特性是增加功率转换单元的输出电流的特性，电源转换单元输出电流的增加与输出电压的增加的比率大致恒定，或者随着调光变得更深，输出电流的增加与输出电压的增加的比例变大。

10. 再颁专利

USRE40843E1 Electronic dimmable ballast for high intensity discharge lamp 有权
公开(公告)号：USRE40843E1
公开(公告)日：2009-07-14
申请号：US11262564
申请日：2005-10-28
申请人： Thomas J. Ribarich
发明人： Thomas J. Ribarich
IPC分类号： G05F1/00
CPC分类号： H05B41/3928 , H05B41/2883 , H05B41/2887 , H05B41/2925 , Y02B20/202
摘要： A dimmable electronic ballast for an HID lamp includes a rectifier stage for rectifying an AC input and providing a rectified DC output, a power factor correction stage for modifying a power factor of the AC input and for providing an increased voltage DC output from the rectified DC output, an electronic ballast control circuit for providing a driving signal comprising a pulse train for controlling a switching operation of an output switch stage driving the HID lamp; the output switch stage having at least one electronic switching element coupled to the increased voltage DC output for providing a pulsed power signal to the HID lamp to power the lamp, the electronic ballast control circuit having a feedback input comprising a signal related to the power dissipated by the HID lamp for maintaining the power at a desired level, the desired level being set by a dimming control input to the electronic ballast control circuit. The circuit provides high frequency power, typically above 50 kHz, to the HID lamp.

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