公开(公告)号：US20100219542A1

公开(公告)日：2010-09-02

申请号：US11997607

申请日：2006-07-27

申请人： Susumu Tsujikawa ,  Yoshio Otani ,  Tetsumi Sumiyoshi

发明人： Susumu Tsujikawa ,  Yoshio Otani ,  Tetsumi Sumiyoshi

IPC分类号： B29D11/00 ,  B28B17/00

CPC分类号： G02F1/133516 ,  B23K26/0624 ,  B23K26/082 ,  B23K26/0853 ,  B23K26/361 ,  B23K26/40 ,  B23K2103/172

摘要： A method for removing and modifying a protrusion by using a short pulse laser is provided for modifying a color filter. In a color filter modifying method, a transparent substrate (2) is scanned with a beam in a parallel direction, while irradiating a protrusion (8) generated on the color filters (3-1, 3-2, 3-3) formed on a transparent substrate (2) with a beam collected by a high NA condensing lens (18), and a protrusion (8) is removed or modified.

摘要翻译： 提供了通过使用短脉冲激光器去除和修改突起的方法来修改滤色器。 在滤色器修改方法中，在平行方向上用光束扫描透明基板（2），同时照射在形成于其上的滤色器（3-1,3-2,3-3）上产生的突起（8） 具有由高NA聚光透镜（18）收集的光束的透明基板（2）和突起（8）被去除或修改。

公开(公告)号：US07689369B2

公开(公告)日：2010-03-30

申请号：US11436817

申请日：2006-05-18

申请人： Akira Watanabe ,  Tadashi Okuno ,  Hiroshi Tsugita ,  Tetsumi Sumiyoshi ,  Hitoshi Sekita

发明人： Akira Watanabe ,  Tadashi Okuno ,  Hiroshi Tsugita ,  Tetsumi Sumiyoshi ,  Hitoshi Sekita

IPC分类号： G01B3/44 ,  G01B3/52 ,  G01B5/30

CPC分类号： H01S3/0014 ,  A61B2018/00636 ,  B23K26/03 ,  B23K26/032 ,  B23K26/034 ,  B23K26/707 ,  B23K2103/30 ,  B23K2103/50 ,  G06F19/00 ,  G16H40/40 ,  H01S3/0007 ,  H01S3/0602 ,  H01S3/0941 ,  H01S3/13 ,  H01S3/1643

摘要： A problem diagnosis method and problem repair method for a laser device are provided. The method includes measuring the intensity of scattered light generated by an optical part inside the laser device; referring to data indicating a temporal change in the scattered light predicted under predetermined operating conditions of the laser device, and predicting the seriousness of the problem from the intensity of scattered light; and determining what kind of maintenance work is necessary based on the seriousness of the problem. Additionally, the seriousness of the problem in the optical part can be predicted by executing fuzzy logic based on membership functions defining the relationship between scattered light intensity and the seriousness of problems of optical parts.

摘要翻译： 提供了一种用于激光装置的问题诊断方法和问题修复方法。 该方法包括测量由激光装置内部的光学部件产生的散射光的强度; 参照表示在激光装置的预定操作条件下预测的散射光的时间变化的数据，并根据散射光的强度预测问题的严重性; 并根据问题的严重性确定需要什么样的维护工作。 另外，可以通过基于限定散射光强度与光学部件问题严重性之间的关系的隶属函数执行模糊逻辑来预测光学部件中的问题的严重性。

公开(公告)号：US20080175282A1

公开(公告)日：2008-07-24

申请号：US10597717

申请日：2005-02-04

申请人： Tadashi Okuno ,  Akira Watanabe

发明人： Tadashi Okuno ,  Akira Watanabe

IPC分类号： H01S3/10

CPC分类号： G02F1/3544 ,  G02F2001/3546

摘要： The energy conversion efficiency from light that is to be converted to converted light of a wavelength conversion device is adjusted so as always to be kept stably at a maximum. The wavelength conversion device is provided with a laser light source 10 for generating a fundamental wave light, a nonlinear optical crystal 16 into which the fundamental wave light is made to enter to generate converted light, and an optical path adjusting portion 30 for adjusting the direction of propagation of the fundamental wave light and the position of the light beam of the fundamental wave light in order to make the fundamental wave light enter the nonlinear optical crystal 16 while satisfying phase matching conditions. The optical path adjusting portion 30 is constituted so as to be provided with a first reflecting mirror 12 and a second reflecting mirror 14, and the first reflecting mirror is provided with adjustment means driven by motors M1 and M2, and the second reflecting mirror is provided with adjustment means driven by motors M3 and M4. Additionally, the wavelength conversion device is provided with a semi-transparent mirror 18 for splitting off and taking out one portion of output light 17, and a photodetector 22 for detecting this split off output light. An electrical signal 23 that is output from the photodetector 22 is input into an adjustment value calculating means 26, and in this adjustment value calculating means, the necessary adjustment values for the adjustment means in the optical path adjusting portion 30 are calculated using fuzzy inference, and this result is output to an optical path adjusting portion control device 28. The optical path adjusting portion control device 28 carries out adjustment of the optical path based upon output signals 27 from the adjustment value calculating means 26.

摘要翻译： 调整要转换为波长转换装置的转换光的光的能量转换效率，使得始终保持稳定地最大化。 波长转换装置设置有用于产生基波光的激光光源10，使基波光进入其中以产生转换光的非线性光学晶体16，以及用于调节方向的光路调节部30 基波的传播和基波光的位置，以使基波进入非线性光学晶体16同时满足相位匹配条件。 光路调整部30构成为设有第一反射镜12和第二反射镜14，第一反射镜设置有由电动机M 1，M 2驱动的调节装置，第二反射镜 设置有由电动机M 3和M 4驱动的调节装置。另外，波长转换装置设置有用于分离和取出一部分输出光17的半透明反射镜18和用于检测该分离的光电检测器22 关闭输出光。 从光电检测器22输出的电信号23输入到调整值计算单元26中，在该调整值计算单元中，使用模糊推理来计算光路调整单元30中的调整单元所需的调整值， 并将该结果输出到光路调整部控制装置28.光路调整部控制装置28基于来自调整值计算装置26的输出信号27进行光路的调整。

公开(公告)号：US07466730B2

公开(公告)日：2008-12-16

申请号：US11407712

申请日：2006-04-20

申请人： Hitoshi Sekita ,  Kazuya Takasago ,  Nobuo Nakata ,  Arata Nakamura

发明人： Hitoshi Sekita ,  Kazuya Takasago ,  Nobuo Nakata ,  Arata Nakamura

IPC分类号： H01S3/13

CPC分类号： H01S3/005 ,  H01S3/1301 ,  H01S3/235

摘要： A femtosecond laser with stabilized output, and a method for stabilizing the output of a femtosecond laser. The femtosecond laser comprises a regenerative amplifier, a photodetector, a control portion and a variable attenuator, wherein the variable attenuator is provided so as to be capable of controlling an output beam of the regenerative amplifier, the photodetector is provided between the regenerative amplifier and the variable attenuator, the photodetector detects an output beam of the regenerative amplifier and transmits the results of the detection to a power controller, and the power controller controls the variable attenuator depending on the a difference between a predetermined target value and the results.

摘要翻译： 具有稳定输出的飞秒激光器和用于稳定飞秒激光器的输出的方法。 飞秒激光器包括再生放大器，光电检测器，控制部分和可变衰减器，其中可变衰减器被设置为能够控制再生放大器的输出光束，光电检测器设置在再生放大器和 可变衰减器，光电检测器检测再生放大器的输出光束，并将检测结果发送到功率控制器，功率控制器根据预定目标值与结果之间的差异来控制可变衰减器。

公开(公告)号：US20060274794A1

公开(公告)日：2006-12-07

申请号：US11436817

申请日：2006-05-18

申请人： Akira Watanabe ,  Tadashi Okuno ,  Hiroshi Tsugita ,  Tetsumi Sumiyoshi ,  Hitoshi Sekita

发明人： Akira Watanabe ,  Tadashi Okuno ,  Hiroshi Tsugita ,  Tetsumi Sumiyoshi ,  Hitoshi Sekita

IPC分类号： H01S3/13 ,  H01S3/00

CPC分类号： H01S3/0014 ,  A61B2018/00636 ,  B23K26/03 ,  B23K26/032 ,  B23K26/034 ,  B23K26/707 ,  B23K2103/30 ,  B23K2103/50 ,  G06F19/00 ,  G16H40/40 ,  H01S3/0007 ,  H01S3/0602 ,  H01S3/0941 ,  H01S3/13 ,  H01S3/1643

摘要： A problem diagnosis method and problem repair method for a laser device such as laser treatment devices used in the medical field and laser processing devices used in industrial fields, capable of detecting problems in laser devices early and reducing the time required for maintenance work on the laser devices are provided. The method comprises a step of measuring the intensity of scattered light generated by an optical part inside the laser device; a step of referring to data indicating a temporal change in the scattered light predicted under predetermined operating conditions of the laser device, and predicting the seriousness of the problem from the intensity of scattered light; and a step of determining what kind of maintenance work is necessary based on the seriousness of the problem. Additionally, the seriousness of the problem in the optical part can be predicted by executing fuzzy logic based on membership functions defining the relationship between scattered light intensity and the seriousness of problems of optical parts.

摘要翻译： 用于医疗领域中使用的激光治疗装置的激光装置的问题诊断方法和问题修复方法以及在工业领域中使用的激光加工装置，能够及早检测激光装置中的问题，并减少激光器的维护工作所需的时间 提供设备。 该方法包括测量由激光装置内部的光学部件产生的散射光的强度的步骤; 参考指示在激光装置的预定操作条件下预测的散射光的时间变化的数据的步骤，并且根据散射光的强度预测问题的严重性; 并根据问题的严重性确定必要的维修工作。 另外，可以通过基于限定散射光强度与光学部件问题严重性之间的关系的隶属函数执行模糊逻辑来预测光学部件中的问题的严重性。

公开(公告)号：US07012940B2

公开(公告)日：2006-03-14

申请号：US10619303

申请日：2003-07-14

申请人： Yusuke Tamaki ,  Hitoshi Sekita ,  Kazuya Takasago ,  Taisuke Miura

发明人： Yusuke Tamaki ,  Hitoshi Sekita ,  Kazuya Takasago ,  Taisuke Miura

IPC分类号： H01S3/00

CPC分类号： H01S3/235 ,  H01S3/08 ,  H01S3/08072 ,  H01S3/106

摘要： The present invention has the object of offering a laser resonator capable of maintaining high amplification efficiency even if the thermal lensing effect occurring in the laser medium varies during operation or over repeated operation and suspension of the laser device. The laser resonator comprises at least a pair of reflection portions (planar reflective mirrors 3) provided such as to allow a laser beam to oscillate therebetween; a laser medium provided on the optical path of the laser between the pair of reflection portions; an excitation portion (excitation laser device 5) for exciting the laser medium; an optical system (convex lens 1) provided on the optical path of the laser beam between the laser medium and the pair of reflection portions for changing the state of the laser in the laser medium; and a movement portion for moving the optical system along the optical axis of the laser.

摘要翻译： 本发明的目的是提供一种激光谐振器，即使在激光介质中发生的热透镜效应在操作期间或者在激光装置的重复操作和暂停时都会发生变化时，其能够保持高的放大效率。 激光谐振器包括至少一对反射部分（平面反射镜3），其被设置为允许激光束在它们之间振荡; 设置在所述一对反射部之间的所述激光的光路上的激光介质; 用于激发激光介质的激励部分（激发激光装置5） 在激光介质和一对反射部分之间设置在激光束的光路上的光学系统（凸透镜1），用于改变激光介质中激光的状态; 以及用于沿着激光的光轴移动光学系统的移动部分。

公开(公告)号：US06882469B2

公开(公告)日：2005-04-19

申请号：US10619310

申请日：2003-07-14

申请人： Yusuke Tamaki ,  Kazuya Takasago ,  Taisuke Miura ,  Hitoshi Sekita

发明人： Yusuke Tamaki ,  Kazuya Takasago ,  Taisuke Miura ,  Hitoshi Sekita

IPC分类号： G02F1/03 ,  H01S3/107 ,  H01S3/23 ,  H01S3/00

CPC分类号： H01S3/235 ,  H01S3/1075

摘要： The invention offers a regenerative optical amplifier enabling voltage to be easily applied to polarizing elements such as Pockels cells, without the need for complicated drive circuitry. An input beam of S-polarized light is reflected by a polarizer 1 and advances to a Pockels cell 2. In the time it takes for the input beam, having once passed through the Pockels cell 2, to be reflected by a reflective mirror 3 and return to the Pockels cell 2, a voltage VP1 causing a 90-degree rotation in the polarization of transmitted light is applied to the Pockels cell 2, and this applied voltage VP1 is maintained. The input beam is converted by the Pockels cell 2 into a P-polarized light pulse which is transmitted by the polarizer. Subsequently, the light pulse is converted from P-polarized light to S-polarized light and back to P-polarized light with each roundtrip of the Pockels cell 2, while passing each time between the reflective mirror 3, laser crystal 4 and reflective mirror 7, so as to be amplified in the resonator formed thereby. The amplified light pulse is extracted by applying a voltage VP2 causing a 90-degree rotation of the polarization of the transmitted light to the Pockels cell 6 to convert the light pulse to S-polarized light which is then reflected out of the resonator by the polarizer 5.

摘要翻译： 本发明提供一种再生式光放大器，其使电压容易地应用于诸如Pockels电池的偏振元件，而不需要复杂的驱动电路。 S偏振光的输入光束被偏振器1反射并前进到Pockels单元2。 在输入光束一旦经过普克尔斯单元2而被反射镜3反射并返回到普克尔斯单元2的时候，将产生90度的电压V P1， 透射光的偏振度的旋转角度被施加到普克尔斯单元2，并且保持该施加电压V P1。 输入光束由Pockels单元2转换成由偏振器透射的P偏振光脉冲。 随后，光脉冲从P偏振光转换成S偏振光，并且随着普克尔斯单元2的每个往返光而被转换成P偏振光，同时每次在反射镜3，激光晶体4和反射镜7之间通过 以便在由此形成的谐振器中被放大。 通过施加将透射光的偏振90度旋转到Pockels单元6的电压V P2 P2来提取放大的光脉冲，以将光脉冲转换成S偏振光 由偏振器5反射出谐振器。

公开(公告)号：US20040076432A1

公开(公告)日：2004-04-22

申请号：US10619302

申请日：2003-07-14

申请人： Cyber Laser, Inc.

发明人： Jun Sakuma ,  Yuichi Asakawa

IPC分类号： H04B010/24

CPC分类号： G02F1/3501 ,  G02F1/3534 ,  G02F1/39 ,  G02F2203/15

摘要： The present invention offers a coherent light generating device with extremely little Fresnel loss. Additionally, the invention makes anti-reflection coatings on the end surfaces of a wavelength-converting medium unnecessary, while also reducing deterioration of anti-reflection coatings and wavelength-converting medium end surfaces, thereby improving the durability of the device. The invention relates to a coherent light generating device comprising an excitation beam source for generating an excitation beam polarized in a predetermined direction; a wavelength-converting medium having a first end surface and a second end surface, for receiving the excitation beam incident on the first end surface and outputting from the second end surface one or two wavelength-converted beams polarized in the same direction as the predetermined direction; and first and second mirrors provided respectively at the first end surface and the second end surface of the wavelength-converting medium, for reflecting wavelength-converted light emitted from the wavelength-converting medium and causing resonance thereof; wherein the first end surface is oriented so that the excitation beam and the wavelength-converted beam reflected by the first mirror are incident at roughly the Brewster's angle, and the polarization of the excitation beam and the wavelength-converted beam is P-polarized with respect to the first end surface; and the second end surface is oriented so that the wavelength-converted beam reflected by the second mirror is incident at roughly the Brewster's angle, and the polarization of the wavelength-converted beam is P-polairized with respect to the second end surface.

摘要翻译： 本发明提供了一种具有非常小的菲涅耳损耗的相干光产生装置。 另外，本发明不需要在波长转换介质的端面上形成抗反射涂层，同时也减少了防反射涂层和波长转换介质端面的劣化，从而提高了器件的耐久性。 本发明涉及一种相干光产生装置，包括用于产生沿预定方向偏振的激发光束的激发光束源; 具有第一端面和第二端面的波长转换介质，用于接收入射在所述第一端面上的激发光束，并从所述第二端面输出沿与所述预定方向相同方向偏振的一个或两个波长转换光束 ; 以及第一和第二反射镜，分别设置在波长转换介质的第一端面和第二端面，用于反射从波长转换介质发射的波长转换的光并引起其共振; 其中所述第一端面被定向成使得由第一反射镜反射的激发光束和波长转换光束以大致布鲁斯特角入射，并且激发光束和波长转换光束的偏振相对于 到第一端面; 并且第二端面被定向成使得由第二反射镜反射的波长转换光束以大致布鲁斯特角入射，并且波长转换光束的偏振相对于第二端面P波状化。

公开(公告)号：US20040075892A1

公开(公告)日：2004-04-22

申请号：US10619310

申请日：2003-07-14

申请人： Cyber Laser Inc.

发明人： Yusuke Tamaki ,  Kazuya Takasago ,  Taisuke Miura ,  Hitoshi Sekita

IPC分类号： H01S003/00

CPC分类号： H01S3/235 ,  H01S3/1075

摘要： The invention offers a regenerative optical amplifier enabling voltage to be easily applied to polarizing elements such as Pockels cells, without the need for complicated drive circuitry. An input beam of S-polarized light is reflected by a polarizer 1 and advances to a Pockels cell 2. In the time it takes for the input beam, having once passed through the Pockels cell 2, to be reflected by a reflective mirror 3 and return to the Pockels cell 2, a voltage VP1 causing a 90-degree rotation in the polarization of transmitted light is applied to the Pockels cell 2, and this applied voltage VP1 is maintained. The input beam is converted by the Pockels cell 2 into a P-polarized light pulse which is transmitted by the polarizer. Subsequently, the light pulse is converted from P-polarized light to S-polarized light and back to P-polarized light with each roundtrip of the Pockels cell 2, while passing each time between the reflective mirror 3, laser crystal 4 and reflective mirror 7, so as to be amplified in the resonator formed thereby. The amplified light pulse is extracted by applying a voltage VP2 causing a 90-degree rotation of the polarization of the transmitted light to the Pockels cell 6 to convert the light pulse to S-polarized light which is then reflected out of the resonator by the polarizer 5.

摘要翻译： 本发明提供一种再生式光放大器，其使电压容易地应用于诸如Pockels电池的偏振元件，而不需要复杂的驱动电路。 S偏振光的输入光束由偏振器1反射并前进到普克尔斯单元2.在输入光束一旦通过普克尔斯单元2所需的时间将被反射镜3反射，并且 返回到普克尔斯单元2，将透射光的偏振90度旋转的电压VP1施加到普克尔单元2，并且保持施加电压VP1。 输入光束由Pockels单元2转换成由偏振器透射的P偏振光脉冲。 随后，光脉冲从P偏振光转换成S偏振光，并且随着普克尔斯单元2的每个往返光而被转换成P偏振光，同时每次在反射镜3，激光晶体4和反射镜7之间通过 以便在由此形成的谐振器中被放大。 通过施加将透射光的偏振90度旋转到Pockels单元6的电压VP2来提取放大的光脉冲，以将光脉冲转换成S偏振光，然后将S偏振光从偏振器反射出谐振器 5。

公开(公告)号：US07457030B2

公开(公告)日：2008-11-25

申请号：US10597717

申请日：2005-02-04

申请人： Tadashi Okuno ,  Akira Watanabe

发明人： Tadashi Okuno ,  Akira Watanabe

IPC分类号： G02F2/02 ,  H01S3/10

CPC分类号： G02F1/3544 ,  G02F2001/3546

摘要： The energy conversion efficiency from light that is to be converted to converted light of a wavelength conversion device is adjusted so as always to be kept stably at a maximum. The wavelength conversion device is provided with a laser light source 10 for generating a fundamental wave light, a nonlinear optical crystal 16 into which the fundamental wave light is made to enter to generate converted light, and an optical path adjusting portion 30 for adjusting the direction of propagation of the fundamental wave light and the position of the light beam of the fundamental wave light in order to make the fundamental wave light enter the nonlinear optical crystal 16 while satisfying phase matching conditions. The optical path adjusting portion 30 is constituted so as to be provided with a first reflecting mirror 12 and a second reflecting mirror 14, and the first reflecting mirror is provided with adjustment means driven by motors M1 and M2, and the second reflecting mirror is provided with adjustment means driven by motors M3 and M4. Additionally, the wavelength conversion device is provided with a semi-transparent mirror 18 for splitting off and taking out one portion of output light 17, and a photodetector 22 for detecting this split off output light. An electrical signal 23 that is output from the photodetector 22 is input into an adjustment value calculating means 26, and in this adjustment value calculating means, the necessary adjustment values for the adjustment means in the optical path adjusting portion 30 are calculated using fuzzy inference, and this result is output to an optical path adjusting portion control device 28. The optical path adjusting portion control device 28 carries out adjustment of the optical path based upon output signals 27 from the adjustment value calculating means 26.

摘要翻译： 调整要转换为波长转换装置的转换光的光的能量转换效率，使得始终保持稳定地最大化。 波长转换装置设置有用于产生基波光的激光光源10，使基波光进入其中以产生转换光的非线性光学晶体16，以及用于调节方向的光路调节部30 基波的传播和基波光的位置，以使基波进入非线性光学晶体16同时满足相位匹配条件。 光路调整部30构成为设有第一反射镜12和第二反射镜14，第一反射镜设置有由电动机M 1，M 2驱动的调节装置，第二反射镜 设置有由电动机M 3和M 4驱动的调节装置。另外，波长转换装置设置有用于分离和取出一部分输出光17的半透明反射镜18和用于检测该分离的光电检测器22 关闭输出光。 从光电检测器22输出的电信号23输入到调整值计算单元26中，在该调整值计算单元中，使用模糊推理来计算光路调整单元30中的调整单元所需的调整值， 并将该结果输出到光路调整部控制装置28.光路调整部控制装置28基于来自调整值计算装置26的输出信号27进行光路的调整。