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公开(公告)号：US09166360B2
公开(公告)日：2015-10-20
申请号：US14220117
申请日：2014-03-19
发明人： Yoshihiro Horikawa , Takayuki Kozakura , Tetsuya Ozawa , Toru Nishikubo , Takanori Samejima , Kazuhiro Yoshida
CPC分类号： H01S3/109 , G02F1/353 , G02F2203/60 , H01S5/005 , H01S5/02208 , H01S5/02296 , H01S5/02446 , H01S5/06216 , H01S5/141
摘要： The fundamental wave light emitted from a semiconductor laser is converted in wavelength by a wavelength conversion element and emitted therefrom. A lighting circuit lights the semiconductor laser, and a temperature control unit 21b controls the amount of electric power supply to a heater so that the temperature of the wavelength conversion element turns into temperature at which the wavelength conversion efficiency thereof becomes optimal. When a state where the amount of electric power supply of the heater is lower limit or below continues for a predetermined period or longer, the hang-up suppressing unit 21c, or when duration time in a state where the temperature of the wavelength conversion element is higher than the control target temperature becomes higher than a constant value, laser lighting current is decreased by a preset amount, thereby recovery from a high temperature hang-up state performed.
摘要翻译： 从半导体激光器发射的基波波长被波长转换元件转换并从其发射。 照明电路点亮半导体激光器，并且温度控制单元21b控制对加热器的电力供应量，使得波长转换元件的温度变为波长转换效率最佳的温度。 当加热器的电力供应量低于或等于下限的状态持续预定时间或更长时间时，停止抑制单元21c，或者当波长转换元件的温度为 高于控制目标温度变得高于恒定值时，激光照明电流降低预定量，从而进行高温挂起状态的恢复。
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公开(公告)号：US09749603B2
公开(公告)日：2017-08-29
申请号：US14803761
申请日：2015-07-20
发明人： Masashi Okamoto , Takanori Samejima
CPC分类号： H04N9/3155 , G03B21/2013 , G03B21/2033 , G03B21/2053 , G03B21/208 , H04N9/3161 , H04N9/3182 , H04N9/3194 , H05B33/0869 , H05B37/03
摘要： A light source unit includes: a plurality of elemental light sources; an optical sensor; a light quantity measurement circuit; and a control circuit. The plurality of elemental light sources each include one or more light emitting elements, one or more drive circuits, a focusing optical system, and an optical fiber. The one or more drive circuits selectively operate in a driving state or in a non-driving state. The control circuit performs a sequence that sequentially acquires light quantity measurement data by sequentially selecting one of the plurality of elemental light sources, putting at least one of the one or more drive circuits included in the selected elemental light source into a first state, and putting the plurality of drive circuits other than the at least one drive circuit into a second state, and detects abnormality based on a plurality of pieces of the acquired light quantity measurement data.
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公开(公告)号：US20170146897A1
公开(公告)日：2017-05-25
申请号：US15425780
申请日：2017-02-06
发明人： Masashi Okamoto , Takanori Samejima , Fumihiko Oda
CPC分类号： G03B21/2053 , G03B21/2033 , G03B33/06 , H04N9/3155 , H04N9/3161 , H04N9/3164 , H04N9/3182 , H04N9/3194 , H05B37/0227
摘要： A light source unit includes: elemental light sources each including light emitting elements and drive circuits; an integrated control circuit that controls the drive circuits; and band optical characteristic acquisition sections that receive light of an amount correlated with a total light amount of output luminous fluxes to acquire light emitting intensity indicating values and wavelength deviation indicating values. The integrated control circuit at least intermittently acquires band optical characteristic acquisition data to generate the light emitting intensity indicating values and the wavelength deviation indicating values. The integrated control circuit holds light emitting intensity indicating value target variation information, and determines the variation of the light emitting intensity indicating values, in accordance with the light emitting intensity indicating value target variation information belonging to one appearance mode of the wavelength deviation indicating values assumed on a basis of an actual mode of the generated wavelength deviation indicating values.
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公开(公告)号：US08950873B2
公开(公告)日：2015-02-10
申请号：US13918894
申请日：2013-06-14
IPC分类号： G03B21/14 , G03B21/20 , G02B27/48 , G02F1/29 , H04N9/31 , G02B19/00 , H01S3/00 , H01S5/00 , H01S5/40 , G03B33/06 , G03B33/08
CPC分类号： G03B21/2033 , G02B6/065 , G02B19/0057 , G02B27/48 , G02F1/29 , G03B21/14 , G03B21/2013 , G03B21/204 , G03B21/2066 , G03B21/208 , G03B33/06 , G03B33/08 , G03B33/12 , H01S3/005 , H01S5/005 , H01S5/4012 , H01S5/4093 , H04N9/3111 , H04N9/3161
摘要： A coherent light source apparatus comprises a first optical system, which has a first light emission region formed by a coherent light source, and which projects light from the first light emission region to form a second light emission region, a light deflection unit which deflects light flux in connection with formation of the second light emission region; a second optical system, which forms a third light emission region in response to the light flux which has been deflected by the light deflection unit, a light mixing unit for mixing a component of an incident light angle and that of a position thereof, and a light deflection unit drive circuit for receiving a periodic optical deflection synchronization signal, thereby driving the light deflection unit, wherein the light deflection unit operates to continuously change a direction in which the light flux is deflected while synchronizing with the optical deflection synchronization signal.
摘要翻译： 相干光源装置包括第一光学系统，其具有由相干光源形成的第一发光区域，并且投射来自第一发光区域的光以形成第二发光区域;偏转光束 与第二发光区域的形成有关的通量; 第二光学系统，其响应于由光偏转单元偏转的光束形成第三发光区域;光混合单元，用于混合入射光角度的分量与其位置的分量;以及 光偏转单元驱动电路，用于接收周期性光偏转同步信号，从而驱动光偏转单元，其中，光偏转单元在与光偏转同步信号同步的同时连续地改变光束偏转的方向。
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公开(公告)号：US09380686B2
公开(公告)日：2016-06-28
申请号：US13956518
申请日：2013-08-01
发明人： Takanori Samejima , Masashi Okamoto , Isao Miyake
IPC分类号： H05B37/02 , H05B41/36 , H05B41/288 , G03B21/00
CPC分类号： H05B41/36 , G03B21/005 , H05B41/2887 , Y02B20/202
摘要： A polarity-reversal control circuit gives a polarity-reversal order so that the polarity of an inverter is inverted each time the polarity-reversal timing notified by a signal is recognized. The number of times of consecutive appearances of a normal polarity-reversal interval period, in which an interval of adjoining polarity-reversal timings is equal to or less than an upper limit of a polarity-reversal interval desirable for a discharge lamp, is counted, and if the unusual polarity-reversal interval period, in which an interval of the adjoining polarity-reversal timing is longer than the upper limit of a polarity-reversal interval, appears, Npm is memorized as the maximum of the number of times of consecutive appearances and after that, when the polarity-reversals signal in which the number of times of consecutive appearances becomes equal to Npm is received, it is regarded as a start of an unusual polarity-reversal interval period, and additional polarity-reversal order is given.
摘要翻译： 极性反转控制电路给出极性反转顺序，使得每当通过信号通知的极性反转定时被识别时，反相器的极性反转。 计数相邻的极性反转定时的间隔等于或小于放电灯所需的极性反转间隔的上限的正常极性反转间隔周期的连续出现次数， 并且如果出现相邻极性反转定时的间隔长于极性反转间隔的上限的异常极性反转间隔周期，Npm被存储为连续出现次数的最大值 之后，当连续出现次数等于Npm的极性反转信号被接收时，将其视为异常极性反转间隔周期的开始，并且给出额外的极性反转顺序。
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16.发明申请LASER LIGHT SOURCE APPARATUS, AND METHOD FOR CONTROLLING TEMPERATURE OF WAVELENGTH CONVERSION ELEMENT IN LASER LIGHT SOURCE APPARATUS 有权激光光源装置，以及用于控制激光光源装置中波长转换元件温度的方法公开(公告)号：US20150078409A1
公开(公告)日：2015-03-19
申请号：US14394150
申请日：2013-03-28
CPC分类号： H01S5/0612 , G02F1/37 , G02F2001/3546 , H01S3/109 , H01S5/02296 , H01S5/0428 , H01S5/0604 , H01S5/0617 , H01S5/06804 , H01S5/06808 , H01S5/14 , H01S5/141 , H01S5/183 , H01S5/423
摘要： The wavelength of fundamental wave light emitted from a semiconductor laser is converted by a wavelength conversion element, and the wavelength-converted light is emitted. A power supply circuit feeds electric power to the semiconductor laser. A control part controls an amount of electric power to be fed to a heater such that the wavelength conversion element becomes a temperature that optimizes the wavelength conversion efficiency. Temperatures detected by an element temperature detector and a light source part temperature detector are introduced to the control part, and the control part takes a wavelength conversion element temperature, at which a temperature detected by the light source part temperature detector is minimum, as a set temperature that makes the wavelength conversion efficiency optimal, and feedback-controls the wavelength conversion element temperature such that the wavelength conversion element temperature is at the set temperature by controlling the heating quantity of the heater.
摘要翻译： 由半导体激光器发射的基波波长由波长转换元件转换，发射波长转换的光。 电源电路向半导体激光器供电。 控制部控制供给到加热器的电力量，使得波长转换元件成为优化波长转换效率的温度。 由元件温度检测器和光源部件温度检测器检测的温度被引入到控制部分，并且控制部分将由光源部件温度检测器检测的温度最小的波长转换元件温度设定为一组 使波长转换效率最优化的温度，并且通过控制加热器的加热量来反馈控制波长转换元件温度，使得波长转换元件温度处于设定温度。
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