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公开(公告)号：US10237937B2
公开(公告)日：2019-03-19
申请号：US15898458
申请日：2018-02-17
Inventor： Hiroshi Kido , Shigeru Ido , Hisao Kataoka , Naohiro Toda
Abstract: A lighting device is provided that includes a lighting controller that controls a light emitter that emits illumination light. The lighting controller includes a first filter that converts a first signal waveform that is defined by a first piecewise linear curve and whose intensity repeatedly increases and decreases into a signal waveform having a smooth rounded curve, and outputs the converted signal waveform as a first output waveform. The lighting controller causes the light emitter to repeatedly increase and decrease the intensity of the illumination light in accordance with the first output waveform.
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公开(公告)号：US10159129B2
公开(公告)日：2018-12-18
申请号：US15898475
申请日：2018-02-17
Inventor： Hiroshi Kido , Shigeru Ido , Hisao Kataoka
Abstract: A lighting device which causes a first light source to emit illumination light and a second light source to emit illumination light having a color temperature higher than a color temperature of the illumination light emitted by the first light source includes: an illuminator which includes a first switching element connected in series to the first light source, and a second switching element connected in series to the second light source; an illumination controller which controls the illuminator to place at least one of the first switching element and the second switching element into an off state; and a constant-current controller which detects a sum of values of currents flowing through the first light source and the second light source, and controls the first switching element and the second switching element based on the sum.
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公开(公告)号：US09674918B2
公开(公告)日：2017-06-06
申请号：US14988182
申请日：2016-01-05
Inventor： Keisuke Seki , Akinori Hiramatsu , Hiroshi Kido
IPC: H05B33/08
CPC classification number: H05B33/0866 , H05B33/0827 , H05B33/086
Abstract: An illumination system includes: a first light-emitting element column including one of a single first light-emitting element or a plurality of first light-emitting elements connected in series; a second light-emitting element column connected in parallel with the first light-emitting element column, and including one of a single second light-emitting element or a plurality of second light-emitting elements connected in series; a constant current supply that supplies a constant current to the first light-emitting element column and the second light-emitting element column which are connected in parallel; a resistor that is connected in series with the first light-emitting element column, and detects a magnitude of current flowing through the first light-emitting element column; and a current adjuster circuit that adjusts the magnitude of the current flowing through the first light-emitting element column, according to the magnitude of the current detected by the resistor.
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公开(公告)号：US09380667B2
公开(公告)日：2016-06-28
申请号：US14743539
申请日：2015-06-18
Inventor： Shigeru Ido , Hiroshi Kido , Akinori Hiramatu , Takeshi Kamoi , Katsushi Seki , Daisuke Yamahara , Daisuke Ueda
CPC classification number: H05B33/083 , H05B33/0809 , H05B33/089 , H05B37/02
Abstract: An illumination device includes a main light source block having a plurality of main light sources and a plurality of current limiters, and an auxiliary light source block having an auxiliary light source and a constant-current unit. A series circuit of the auxiliary light source and the constant-current unit is electrically connected in parallel with the main light source block, between first and second output terminals of a rectifier. A smoothing capacitor is electrically connected in parallel with a specific main light source among the plurality of main light sources. The specific main light source and a corresponding current limiter are electrically connected in parallel with the series circuit of the auxiliary light source and the constant-current unit.
Abstract translation: 照明装置包括具有多个主光源和多个限流器的主光源块，以及具有辅助光源和恒流单元的辅助光源块。 辅助光源和恒流单元的串联电路在整流器的第一和第二输出端子之间与主光源块并联电连接。 平滑电容器与多个主光源中的特定主光源并联地电连接。 特定主光源和对应的限流器与辅助光源和恒流单元的串联电路并联电连接。
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公开(公告)号：US09699847B2
公开(公告)日：2017-07-04
申请号：US15011739
申请日：2016-02-01
Inventor： Akinori Hiramatsu , Shigeru Ido , Daisuke Ueda , Hiroshi Kido
IPC: H05B33/08
CPC classification number: H05B33/0824 , H05B33/0803 , H05B33/0854
Abstract: The light source unit includes a light source circuit including N (N≧3) pairs of a light source group including one or more solid light emitting elements and a constant current circuit connected in series with the light source group to keep, constant, current flowing through the light source group, a full-wave rectification circuit for performing full-wave rectification on AC voltage, and a control circuit. The first pair is connected to the full-wave rectification circuit. The k-th (2≦k≦N) pair is connected in parallel with the constant current circuit of the (k−1)-th pair so that the light source groups of the k-th and (k−1)-th pairs are in series. The control circuit terminates operations of the constant current circuits of the N pairs or limits currents flowing through the light source groups of the N pairs in response to detection of light or a signal.
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Patent Agency Ranking
公开(公告)号：US20160205741A1
公开(公告)日：2016-07-14
申请号：US14988182
申请日：2016-01-05
Inventor： Keisuke Seki , Akinori Hiramatsu , Hiroshi Kido
IPC: H05B33/08
CPC classification number: H05B33/0866 , H05B33/0827 , H05B33/086
Abstract: An illumination system includes: a first light-emitting element column including one of a single first light-emitting element or a plurality of first light-emitting elements connected in series; a second light-emitting element column connected in parallel with the first light-emitting element column, and including one of a single second light-emitting element or a plurality of second light-emitting elements connected in series; a constant current supply that supplies a constant current to the first light-emitting element column and the second light-emitting element column which are connected in parallel; a resistor that is connected in series with the first light-emitting element column, and detects a magnitude of current flowing through the first light-emitting element column; and a current adjuster circuit that adjusts the magnitude of the current flowing through the first light-emitting element column, according to the magnitude of the current detected by the resistor.
Abstract translation: 照明系统包括：第一发光元件列，包括串联连接的单个第一发光元件或多个第一发光元件中的一个; 与第一发光元件列并联连接的第二发光元件列，并且包括串联连接的单个第二发光元件或多个第二发光元件中的一个; 向第一发光元件列和第二发光元件列并联连接的恒流源， 与第一发光元件列串联连接的电阻，并检测流过第一发光元件列的电流的大小; 以及电流调节器电路，其根据由电阻器检测的电流的大小来调节流过第一发光元件列的电流的大小。
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公开(公告)号：US09374865B2
公开(公告)日：2016-06-21
申请号：US14796287
申请日：2015-07-10
Inventor： Daisuke Yamahara , Takeshi Kamoi , Hiroshi Kido , Akinori Hiramatu , Katsushi Seki , Daisuke Ueda , Shigeru Ido
CPC classification number: H05B33/083 , H05B33/0809
Abstract: A lighting device includes a rectifier, a constant current regulator and a charge-discharge circuit. The constant current regulator is electrically connected in series with first and second solid-state light-emitting element arrays between a pair of output terminals of the rectifier. The constant current regulator is configured to adjust a current flowing through the second solid-state light-emitting element array to a constant current. The charge-discharge circuit is electrically connected in series with the first solid-state light-emitting element array between the pair of output terminals of the rectifier. The charge-discharge circuit includes a charge storage element, and is configured so that a charge current flows to the charge storage element through the first solid-state light-emitting element array, and so that a discharge current flows from the charge storage element to the second solid-state light-emitting element array.
Abstract translation: 照明装置包括整流器，恒流调节器和充放电电路。 恒流调节器与整流器的一对输出端之间的第一和第二固态发光元件阵列串联电连接。 恒流调节器被配置为将流过第二固态发光元件阵列的电流调节到恒定电流。 充放电电路与整流器的一对输出端子之间的第一固态发光元件阵列串联电连接。 充放电电路包括电荷存储元件，并且被配置为使得充电电流通过第一固态发光元件阵列流到电荷存储元件，并且使得放电电流从电荷存储元件流到 第二固态发光元件阵列。
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公开(公告)号：US09585223B2
公开(公告)日：2017-02-28
申请号：US14988212
申请日：2016-01-05
Inventor： Keisuke Seki , Akinori Hiramatsu , Hiroshi Kido
IPC: H05B33/08
CPC classification number: H05B33/0887 , H05B33/0827 , H05B33/0851 , H05B33/0866
Abstract: An illumination system includes: a first light-emitting element column in which one or more first light-emitting elements are serially connected; a second light-emitting element column connected in parallel with the first light-emitting element column, and in which one or more second light-emitting elements are serially connected; a constant current supply that supplies constant current to a light source unit including the first and second light-emitting element columns; a resistor that is connected in series with the first light-emitting element column, and detects magnitude of current flowing through at least the first light-emitting element column; a bypass circuit that passes, to the resistor, at least part of current flowing through the second light-emitting element column, when a predetermined condition is satisfied; and a current adjuster circuit that adjusts the magnitude of the current flowing through the first light-emitting element column, according to the magnitude of the current detected by the resistor.
Abstract translation: 照明系统包括：第一发光元件列，其中一个或多个第一发光元件串联连接; 与第一发光元件列并联连接的第二发光元件列，其中一个或多个第二发光元件串联连接; 恒定电流源，其向包括第一和第二发光元件列的光源单元提供恒定电流; 与第一发光元件列串联连接的电阻，并检测流过至少第一发光元件列的电流的大小; 当满足预定条件时，将电流流过流经第二发光元件列的电流的至少一部分的旁路电路; 以及电流调节器电路，其根据由电阻器检测的电流的大小来调节流过第一发光元件列的电流的大小。
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公开(公告)号：US09232597B2
公开(公告)日：2016-01-05
申请号：US14619645
申请日：2015-02-11
Inventor： Daisuke Ueda , Hiroshi Kido , Akinori Hiramatu , Junichi Hasegawa , Shigeru Ido
CPC classification number: H05B33/0848 , H05B33/0815 , H05B33/089
Abstract: A lighting device includes: first and second power feed terminals between which a light source of a light source device is configured to be electrically connected; a power supply circuit having output ends electrically connected respectively to the first and second power feed terminals and configured to output a DC power across the first and second power feed terminals; a control circuit configured to control the power supply circuit; and at least one identifying terminal for identifying a rated current of a light source. The control circuit is configured to identify a rated current of a light source connected between the first and second power feed terminals by detecting whether the identifying terminal is in floating state or not, and to control the power supply circuit so as to supply a current corresponding to the identified rated current through the first and second power feed terminals.
Abstract translation: 照明装置包括：第一和第二馈电端子，其中光源装置的光源被配置为电连接; 电源电路，其输出端分别电连接到第一和第二馈电端子，并且被配置为在第一和第二馈电端子上输出DC电力; 控制电路，被配置为控制所述电源电路; 以及用于识别光源的额定电流的至少一个识别终端。 该控制电路被配置为通过检测识别终端是否处于浮置状态来识别连接在第一和第二馈电端子之间的光源的额定电流，并且控制电源电路以便提供对应的电流 通过第一和第二馈电端子到所识别的额定电流。
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公开(公告)号：US09750095B2
公开(公告)日：2017-08-29
申请号：US15202794
申请日：2016-07-06
Inventor： Shigeru Ido , Akinori Hiramatu , Hiroshi Kido , Takeshi Kamoi , Daisuke Ueda
CPC classification number: H05B33/0815 , H04B10/11 , H05B33/0806 , H05B33/0842
Abstract: A control circuit is configured to convert a DC voltage that is outputted from a DC power supply to a square wave voltage by switching the switching element according to a PWM signal having a duty ratio that corresponds to a light modulation level of the light source unit, and cause the square wave voltage to be outputted to the light source unit. The control circuit includes a voltage controller configured to control an operating voltage for operating the switching element such that at least one of a rising time and a falling time of a current that flows through the switching element is 1 microsecond or more.
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