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1.发明授权公开(公告)号：US10660171B2
公开(公告)日：2020-05-19
申请号：US16145748
申请日：2018-09-28
发明人： Shun Sato , Junichi Suzuki , Masaru Kono
IPC分类号： H05B41/39 , H05B41/392 , G03B21/20 , H05B41/292 , H05B41/16 , H05B41/288
摘要： A discharge lamp drive device includes a discharge lamp driver adapted to supply a drive current to a discharge lamp having a first electrode and a second electrode, a control section adapted to control the discharge lamp driver, and a storage section adapted to store a plurality of drive patterns of the drive current. The control section is configured to select one drive pattern of the plurality of drive patterns based on machine learning, and execute the selected drive pattern. In a case in which a predetermined condition is fulfilled, the control section executes a predetermined drive pattern of the plurality of drive patterns without selecting and executing the drive pattern based on the machine learning.
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公开(公告)号：US09915862B2
公开(公告)日：2018-03-13
申请号：US15407553
申请日：2017-01-17
发明人： Satoshi Kito , Shun Sato
IPC分类号： G03B21/14 , G03B21/20 , G03B21/00 , H05B41/36 , H05B41/288
CPC分类号： G03B21/2053 , G03B21/006 , G03B21/2026 , H05B41/2887 , H05B41/36
摘要： In a discharge lamp driving device, a mixed period is provided, in which a first period in which an alternating current is supplied and a second period in which a direct current is supplied are alternately repeated and a third period alternately including a first direct current period and a second direct current period in which a direct current having a polarity opposite to a polarity of the direct current in the first direct current period is supplied. Length of the second direct current period is smaller than 0.5 ms. A total of lengths of the first direct current periods in the third period is larger than length of the second period. The third period is not provided at least when the inter-electrode voltage is smaller than a first predetermined value or when a cumulative lighting time of the discharge lamp is smaller than a second predetermined value.
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公开(公告)号：US09729838B2
公开(公告)日：2017-08-08
申请号：US14282685
申请日：2014-05-20
发明人： Junichi Suzuki , Shun Sato
IPC分类号： H05B41/34 , H04N9/31 , H05B41/288 , G03B21/20
CPC分类号： H04N9/3155 , G03B21/2026 , H05B41/2886
摘要： A discharge lamp driver includes a discharge lamp drive unit that supplies a drive current to the discharge lamp, and a control unit that controls the discharge lamp drive unit according to a drive current waveform, wherein the drive current waveform has a mixed frequency drive period including a unit drive period containing a first drive period in which a first drive current is supplied to the discharge lamp and a second drive period provided immediately after the first drive period, in which a second drive current is supplied to the discharge lamp, the first drive current is a half-period alternating current having a frequency higher than 10 Hz and not higher than 300 Hz, the second drive current is an alternating current having a frequency higher than 1000 Hz, and a length of the second drive period is equal to or longer than a length of the first drive period.
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4.发明授权公开(公告)号：US10925127B2
公开(公告)日：2021-02-16
申请号：US16135147
申请日：2018-09-19
发明人： Masaru Kono , Junichi Suzuki , Shun Sato , Yuichiro Iwama
IPC分类号： H05B41/38 , G03B21/20 , H05B41/292 , H05B41/288 , H01J61/86
摘要： A discharge lamp drive device includes a discharge lamp driver adapted to supply a drive current to a discharge lamp having a first electrode and a second electrode, a control section adapted to control the discharge lamp driver, and a storage section adapted to store a plurality of drive patterns of the drive current. The control section is adapted to select one drive pattern of the plurality of drive patterns based on machine learning, and execute the selected drive pattern.
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公开(公告)号：US10197899B2
公开(公告)日：2019-02-05
申请号：US15799566
申请日：2017-10-31
发明人： Satoshi Kito , Shun Sato
摘要： A discharge lamp driver includes a discharge lamp drive unit, a control unit, and a voltage detection part. When an inter-electrode voltage is smaller than a first predetermined value, the control unit controls the discharge lamp drive unit to provide a mixed period in which a first period and a second period are alternately repeated and a third period alternately including a first direct-current period and a second direct-current period. A length of the first direct-current period is larger than a length of the second direct-current period. The length of the second direct-current period is smaller than 0.5 ms. A total of the lengths of the first direct-current periods in the third period is larger than a length of the second period. When the inter-electrode voltage is smaller than the first predetermined value, the control unit is configured to increase the length of the third period in a stepwise manner.
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公开(公告)号：US09939716B2
公开(公告)日：2018-04-10
申请号：US14030410
申请日：2013-09-18
发明人： Shun Sato
IPC分类号： G03B21/14 , H05B41/292 , G03B21/20
CPC分类号： G03B21/142 , G03B21/2026 , H05B41/2928
摘要： A projector includes a discharge lamp, a discharge lamp lighting device adapted to supply the discharge lamp with a drive current for driving the discharge lamp, a timer section adapted to count lighting time of the discharge lamp, and a control section adapted to control the discharge lamp lighting device to select and then perform either of a plurality of operation modes different in drive current to be output to the discharge lamp from each other, and the control section selects the operation mode based on the lighting time counted by the timer section.
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公开(公告)号：US09867265B2
公开(公告)日：2018-01-09
申请号：US15168634
申请日：2016-05-31
发明人： Shun Sato , Junichi Suzuki , Satoshi Kito
IPC分类号： H05B41/288 , G03B21/00 , G03B21/20 , H01J61/02 , H01J61/073 , H01J61/54 , H04N9/31 , H05B41/392
CPC分类号： H05B41/2887 , G03B21/006 , G03B21/2026 , G03B21/2053 , H01J61/025 , H01J61/073 , H01J61/545 , H04N9/3105 , H04N9/3197 , H05B41/2883 , H05B41/392
摘要： A discharge lamp driving device according to one aspect of the invention includes a discharge lamp driving section configured to supply a driving current to a discharge lamp including electrodes and a control section configured to control the discharge lamp driving section. The control section controls the discharge lamp driving section such that a mixed period is provided in which a first period in which an alternating current having a first frequency is supplied to the discharge lamp and a second period in which a direct current is supplied to the discharge lamp are alternately repeated. The first frequency includes a plurality of frequencies different from one another. The control section temporally changes the length of the first period.
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公开(公告)号：US09354497B2
公开(公告)日：2016-05-31
申请号：US14295611
申请日：2014-06-04
发明人： Tetsuo Terashima , Shun Sato
IPC分类号： G03B21/20 , G03B35/16 , H04N9/31 , H04N13/04 , H05B41/288 , H05B41/292
CPC分类号： G03B21/2053 , G03B35/16 , H04N9/3155 , H04N13/341 , H04N13/363 , H05B41/2887 , H05B41/2928
摘要： A projector that outputs a first image and a second image alternately, includes: a discharge lamp driving section that supplies, to a discharge lamp, a drive current that drives the discharge lamp; a state detecting section that detects a deteriorating state of the discharge lamp; and a control section that controls the discharge lamp driving section, wherein the control section controls the discharge lamp driving section so that the absolute value of the drive current becomes relatively small in the first period and relatively large in the second period and, in the second period, the control section controls the discharge lamp driving section so that the discharge lamp driving section supplies an alternating current to the discharge lamp as the drive current and controls the discharge lamp driving section so that at least part of the frequency of the drive current is decreased with the progress of the deteriorating state.
摘要翻译： 一种交替输出第一图像和第二图像的投影仪，包括：放电灯驱动部，向放电灯提供驱动放电灯的驱动电流; 状态检测部，其检测放电灯的劣化状态; 以及控制部，其控制放电灯驱动部，其中，所述控制部控制所述放电灯驱动部，使得所述驱动电流的绝对值在所述第一期间变得相对较小，并且在所述第二期间中相对较大， 期间，控制部分控制放电灯驱动部分，使得放电灯驱动部分向放电灯提供交流电作为驱动电流，并控制放电灯驱动部分，使得驱动电流的至少一部分频率为 随着恶化状况的进展而下降。
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公开(公告)号：US09176369B2
公开(公告)日：2015-11-03
申请号：US14095352
申请日：2013-12-03
发明人： Tetsuo Terashima , Shun Sato
CPC分类号： G03B21/2053 , H04N13/341 , H04N13/363 , H05B41/39
摘要： A projector includes a discharge lamp, a discharge-lamp driving unit, a control unit, a light modulating element, and a projection optical system. The control unit alternately repeats a high luminance period in which a driving current having a relatively large absolute value is supplied to the discharge lamp and a low luminance period in which the driving current having a relatively small absolute value is supplied to the discharge lamp. The control unit controls the discharge-lamp driving unit according to a driving current waveform formed by the control waveform unit including a direct-current waveform pattern in which the driving current in a first high luminance period, the driving current in a first low luminance period immediately after the first high luminance period, and the driving current in a second high luminance period immediately after the first low luminance period have the same first polarity.
摘要翻译： 投影仪包括放电灯，放电灯驱动单元，控制单元，光调制元件和投影光学系统。 控制单元交替重复将具有相对较大绝对值的驱动电流提供给放电灯的高亮度周期，并且将具有相对较小绝对值的驱动电流提供给放电灯的低亮度周期。 控制单元根据由控制波形单元形成的驱动电流波形控制放电灯驱动单元，该驱动电流波形包括直流波形图案，其中第一高亮度周期中的驱动电流，第一低亮度周期中的驱动电流 紧接在第一高亮度周期之后，紧接在第一低亮度周期之后的第二高亮度周期中的驱动电流具有相同的第一极性。
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公开(公告)号：US10237521B2
公开(公告)日：2019-03-19
申请号：US15059892
申请日：2016-03-03
发明人： Shun Sato , Tetsuo Terashima , Yoichi Nakagomi
IPC分类号： H04N9/31 , H05B41/38 , H05B41/288
摘要： According to an aspect of the invention, a discharge lamp driving device includes a discharge lamp driving section, a control section, and a voltage detecting section. The control section is configured to execute a first discharge lamp driving for executing a first control and a second control for supplying a driving current including a direct current and an alternating current to a discharge lamp. In the first discharge lamp driving, the control section executes the first control when the interelectrode voltage is equal to or smaller than a first threshold voltage at predetermined setting timing and executes the second control when the interelectrode voltage is larger than the first threshold voltage at the predetermined setting timing. A rate of the direct current in the second control is larger than a rate of the direct current in the first control.
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