Projector
    1.
    发明授权
    Projector 有权
    投影机

    公开(公告)号:US08988006B2

    公开(公告)日:2015-03-24

    申请号:US13407158

    申请日:2012-02-28

    CPC classification number: G03B21/2026

    Abstract: A projector includes: a discharge lamp; a discharge lamp driving unit that drives the discharge lamp by supplying a driving power to the discharge lamp through supply of a driving current thereto; and a control unit that controls the discharge lamp driving unit based on plural operating modes in which maximum values of the driving power are different from one another, wherein the control unit switches the operating mode through a transition period and controls the discharge lamp driving unit so that an average value of a frequency of the driving current in the former half of the transition period becomes larger than an average value of a frequency of the driving current in the latter half of the transition period.

    Abstract translation: 投影仪包括:放电灯; 放电灯驱动单元,其通过向其提供驱动电流而向放电灯提供驱动电力来驱动放电灯; 以及控制单元,其基于多个操作模式来控制所述放电灯驱动单元,其中所述驱动功率的最大值彼此不同,其中所述控制单元将所述操作模式切换到过渡时段,并且将所述放电灯驱动单元控制为 过渡期间的前半部分中的驱动电流的频率的平均值变得比在过渡期的后半期的驱动电流的频率的平均值大。

    Projector
    2.
    发明授权
    Projector 有权
    投影机

    公开(公告)号:US08773036B2

    公开(公告)日:2014-07-08

    申请号:US13306218

    申请日:2011-11-29

    Inventor: Tetsuo Terashima

    Abstract: A projector that outputs a first picture and a second picture alternately, wherein a control section performs first control and second control, controls a discharge lamp driving section. In the first control and the second control, the absolute value of a drive current is relatively small in a first period and relatively large in a second period. In the first control, the energy provided to a first electrode in the second period is greater than the energy provided to the second electrode in the second period. In the second control, the energy provided to the second electrode in the second period is greater than the energy provided to the first electrode in the second period.

    Abstract translation: 一种投影仪,其交替地输出第一图像和第二图像,其中控制部分执行第一控制和第二控制,控制放电灯驱动部分。 在第一控制和第二控制中,驱动电流的绝对值在第一期间相对较小,在第二期间相对较大。 在第一控制中,在第二周期中提供给第一电极的能量大于在第二周期中提供给第二电极的能量。 在第二控制中,在第二周期中提供给第二电极的能量大于在第二周期中提供给第一电极的能量。

    Discharge lamp lighting device, projector, and driving method of discharge lamp
    3.
    发明授权
    Discharge lamp lighting device, projector, and driving method of discharge lamp 有权
    放电灯照明装置,投影机和放电灯的驱动方法

    公开(公告)号:US08378581B2

    公开(公告)日:2013-02-19

    申请号:US12832166

    申请日:2010-07-08

    Inventor: Tetsuo Terashima

    CPC classification number: G03B21/2026 G03B21/2053 H05B41/2928

    Abstract: In at least one embodiment of the disclosure, a discharge lamp lighting device comprises a discharge lamp driving section and a control unit. The control unit alternately performs a first DC driving processing and a first AC driving processing in a first section of the driving current. The control unit alternately performs a second DC driving processing and a second AC driving processing in a second section of the driving current different from the first section. The control unit temporally changes a length of at least one of: (i) a period for which the first DC driving processing is performed, and (ii) a period for which the second DC driving processing is performed.

    Abstract translation: 在本公开的至少一个实施例中,放电灯点亮装置包括放电灯驱动部分和控制单元。 控制单元在驱动电流的第一部分中交替执行第一DC驱动处理和第一AC驱动处理。 控制单元在不同于第一部分的驱动电流的第二部分中交替执行第二DC驱动处理和第二AC驱动处理。 控制单元暂时改变以下至少一个的长度:(i)执行第一DC驱动处理的周期,以及(ii)执行第二DC驱动处理的周期。

    Discharge lamp lighting device, projector, and driving method of discharge lamp
    4.
    发明授权
    Discharge lamp lighting device, projector, and driving method of discharge lamp 有权
    放电灯照明装置,投影机和放电灯的驱动方法

    公开(公告)号:US08269424B2

    公开(公告)日:2012-09-18

    申请号:US12832159

    申请日:2010-07-08

    Inventor: Tetsuo Terashima

    CPC classification number: H05B41/2925 H05B41/2883 Y02B20/208

    Abstract: In at least one embodiment of the disclosure, a discharge lamp lighting device comprises a discharge lamp driving section, a state detecting section that detects a deterioration state of an electrode of a discharge lamp, and a control unit. The control unit alternately performs a first DC driving processing and a first AC driving processing in a first section of the driving current. The control unit alternately performs a second DC driving processing and a second AC driving processing in a second section of the driving current different from the first section. According to a progress of the deterioration state of the electrode, the control unit increases a length of at least one of: (i) a period for which the first DC driving processing is performed, and (ii) a period for which the second DC driving processing is performed.

    Abstract translation: 在本公开的至少一个实施例中,放电灯点亮装置包括放电灯驱动部分,状态检测部分,其检测放电灯的电极的劣化状态和控制单元。 控制单元在驱动电流的第一部分中交替执行第一DC驱动处理和第一AC驱动处理。 控制单元在不同于第一部分的驱动电流的第二部分中交替执行第二DC驱动处理和第二AC驱动处理。 根据电极的劣化状态的进展,控制单元增加以下至少一个的长度:(i)执行第一直流驱动处理的周期,以及(ii)第二DC 进行驾驶处理。

    Discharge lamp lighting device, method of driving discharge lamp, and projector
    5.
    发明授权
    Discharge lamp lighting device, method of driving discharge lamp, and projector 有权
    放电灯照明装置,放电灯驱动方法和投影仪

    公开(公告)号:US08264170B2

    公开(公告)日:2012-09-11

    申请号:US12698356

    申请日:2010-02-02

    CPC classification number: G03B21/2053 G03B21/2026 H05B41/38

    Abstract: In at least one embodiment of the disclosure, a discharge lamp lighting device includes a discharge lamp driving unit that drives a discharge lamp by supplying an AC driving current to the discharge lamp. A memory unit is configured to store driving parameters for the AC driving current. A control unit is configured to control the discharge lamp driving unit based on the driving parameters stored in the memory unit. The driving parameters comprise a range of holding time values, each holding time value representing a time period in which the AC driving current is to be continuously maintained at a same polarity. Upon a predetermined time condition, the control unit selects one of the holding time values based on a predetermined probability and controls the discharge lamp driving unit based on the selected holding time value.

    Abstract translation: 在本公开的至少一个实施例中,放电灯点亮装置包括通过向放电灯提供AC驱动电流来驱动放电灯的放电灯驱动单元。 存储器单元被配置为存储AC驱动电流的驱动参数。 控制单元被配置为基于存储在存储单元中的驱动参数来控制放电灯驱动单元。 驱动参数包括保持时间值的范围,每个保持时间值表示交流驱动电流将以相同的极性连续地保持的时间段。 在预定时间条件下,控制单元基于预定概率选择一个保持时间值,并根据选择的保持时间值控制放电灯驱动单元。

    Discharge lamp lighting device, method of controlling discharge lamp lighting device, and projector
    6.
    发明授权
    Discharge lamp lighting device, method of controlling discharge lamp lighting device, and projector 有权
    放电灯照明装置,放电灯照明装置的控制方法和投影仪

    公开(公告)号:US07956315B2

    公开(公告)日:2011-06-07

    申请号:US12504137

    申请日:2009-07-16

    CPC classification number: H05B41/2928 G03B21/005 H05B41/2885

    Abstract: A discharge lamp lighting device includes: a power control circuit adapted to generate discharge lamp driving power; an alternating current conversion circuit adapted to execute polarity reversal on a direct current output from the power control circuit, thereby generating an alternating current; and a control section adapted to perform alternating current conversion control of controlling the polarity reversal timing of the alternating current, wherein the control section executes a steady drive process of executing the alternating current conversion control at a given frequency, a first low frequency drive process of executing the alternating current conversion control at a first low frequency driving frequency lower than the given frequency, and starting from a first polarity and ending with the first polarity, and a second low frequency drive process of executing the alternating current conversion control at a second low frequency driving frequency lower than the given frequency, and starting from a second polarity and ending with the second polarity.

    Abstract translation: 放电灯点亮装置包括:功率控制电路,适于产生放电灯驱动电力; 交流电转换电路,用于对从功率控制电路输出的直流电进行极性反转,从而产生交流电; 以及控制部,其适于执行控制所述交流电的极性反转定时的交流转换控制,其中,所述控制部执行以给定频率执行所述交流电转换控制的稳定驱动处理,所述第一低频驱动处理 在低于给定频率的第一低频驱动频率下执行交流转换控制,并从第一极性开始并以第一极性结束;以及第二低频驱动处理,以第二低电平执行交流电转换控制 频率驱动频率低于给定频率,并从第二极性开始并以第二极性结束。

    DISCHARGE LAMP DRIVING DEVICE AND METHOD, LIGHT SOURCE DEVICE, AND IMAGE DISPLAYING APPARATUS
    7.
    发明申请
    DISCHARGE LAMP DRIVING DEVICE AND METHOD, LIGHT SOURCE DEVICE, AND IMAGE DISPLAYING APPARATUS 有权
    放电灯驱动装置和方法,光源装置和图像显示装置

    公开(公告)号:US20100084987A1

    公开(公告)日:2010-04-08

    申请号:US12573258

    申请日:2009-10-05

    CPC classification number: H05B41/38 H05B41/2928

    Abstract: In at least one embodiment of the disclosure, a discharge lamp driving device includes a discharge lamp lighting unit configured to supply power to a discharge lamp while alternately switching a polarity of a voltage applied across two electrodes of the discharge lamp. A controller performs a modulation control of the power in accordance with a power ratio characterized by the power supplied in a polarity switching period. The controller starts the modulation control at a predetermined time after the power supplied to the discharge lamp reaches a predetermined power value.

    Abstract translation: 在本公开的至少一个实施例中,放电灯驱动装置包括放电灯点亮单元,其配置为在放电灯的两个电极上施加的电压的极性交替切换时向放电灯供电。 控制器根据在极性切换周期中提供的功率所表征的功率比来执行功率的调制控制。 控制器在提供给放电灯的电源达到预定功率值之后的预定时间开始调制控制。

    Light source device, projector, and driving method of discharge lamp
    8.
    发明申请
    Light source device, projector, and driving method of discharge lamp 有权
    放电灯的光源装置,投影机及驱动方法

    公开(公告)号:US20090153806A1

    公开(公告)日:2009-06-18

    申请号:US12314181

    申请日:2008-12-05

    Abstract: A light source device is provided. The light source device has: a discharge lamp that emits light by discharge in an interelectrode space between a first electrode and a second electrode; a main mirror arranged at the first electrode side that reflects light flux generated by the discharge in the interelectrode space so as to emit the light flux to an area to be illuminated; a sub-mirror arranged at the second electrode side facing opposite the main mirror that reflects the light flux from the interelectrode space toward the interelectrode space; and a driver that supplies alternating current to the first and the second electrodes, and changes duty ratio of the alternating current supplied to the first and the second electrodes in accordance with a predetermined pattern. In the light source device, maximum value of time ratio of a first anode period in which the first electrode works as anode to one cycle of the alternating current is larger than maximum value of time ratio of a second anode period in which the second electrode works as anode to the one cycle of the alternating current.

    Abstract translation: 提供光源装置。 光源装置具有:放电灯,其在第一电极和第二电极之间的电极间空间中通过放电发光; 主反射镜,其布置在第一电极侧,反射在电极间空间中由放电产生的光束,以将光通量发射到待照射的区域; 副镜子,其布置在第二电极侧,与主镜相对,反射来自电极间空间的光束朝向电极间空间; 以及驱动器,其向第一和第二电极提供交流电流,并且根据预定图案改变供应到第一和第二电极的交流电的占空比。 在光源装置中,第一电极作为阳极工作的一个阳极周期与交流电的一个周期的时间比的最大值大于第二电极工作的第二阳极周期的时间比的最大值 作为阳极到交流电的一个周期。

    Projector
    10.
    发明授权
    Projector 有权
    投影机

    公开(公告)号:US09057938B2

    公开(公告)日:2015-06-16

    申请号:US13992831

    申请日:2011-12-19

    CPC classification number: G03B21/16 H04N9/3144 H04N9/3197

    Abstract: A projector includes a light source lamp, a cooling device adapted to feed a cooling fluid to the light source lamp to thereby cool the light source lamp, a lighting control section adapted to supply the light source lamp with the lamp electric power having either one of a first electric power value and a second electric power value higher than the first electric power value to thereby light the light source lamp, and a cooling control section adapted to control the cooling device, and the cooling control section controls the cooling device so that the cooling fluid at a flow rate lower than a set flow rate set in accordance with the second electric power value is fed to the light source lamp during a predetermined period after the lamp electric power is switched from the first electric power value to the second electric power value.

    Abstract translation: 投影机包括光源灯,适于将冷却流体供给到光源灯以冷却光源灯的冷却装置,适于向光源灯供应具有以下任何一个的灯电源的照明控制部: 高于第一电力值的第一电功率值和第二电力值,从而点亮光源灯;以及冷却控制部,其适于控制冷却装置,冷却控制部控制冷却装置, 在将灯电源从第一电力值切换到第二电力之后的预定时间段内,以低于根据第二电力值设定的设定流量的流量的冷却流体被馈送到光源灯 值。

Patent Agency Ranking