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公开(公告)号：US08957349B2
公开(公告)日：2015-02-17
申请号：US12496249
申请日：2009-07-01
IPC分类号： B23K26/00 , B41J2/44 , B23K26/06 , B41J2/465 , G02B26/06 , G02B27/42 , G03H1/00 , G03H1/08 , B41M5/24 , G03H1/02 , G03H1/22
CPC分类号： B41J2/442 , B23K26/066 , B41J2/465 , B41M5/24 , G02B26/06 , G02B27/42 , G02B27/4244 , G02B27/425 , G03H1/0005 , G03H1/0236 , G03H1/08 , G03H1/0808 , G03H1/2286 , G03H1/2294 , G03H2001/0094 , G03H2001/0816 , G03H2001/2218 , G03H2210/52 , G03H2225/32 , G03H2240/51 , G03H2240/53
摘要： A laser machining device is provided with a laser light source, a spatial light modulator, a driving unit, a control unit, and a condensing optical system. The control unit selects a basic hologram corresponding to each basic machining pattern included in a whole machining pattern in a workpiece from a plurality of basic holograms stored by the storage unit, and determines a display region of the basic hologram in the spatial light modulator so that the deviation of the value of “Iη/n” becomes small for the selected respective basic hologram when the intensity of a laser beam input to a display region of the basic hologram in the spatial light modulator is defined as I, the diffraction efficiency of the laser beam in the basic hologram is defined as η, and the number of condensing points in a basic machining pattern corresponding to the basic hologram is defined as n.
摘要翻译： 激光加工装置设置有激光光源，空间光调制器，驱动单元，控制单元和聚光光学系统。 控制单元从由存储单元存储的多个基本全息图中选择对应于工件中的整个加工图案中包括的每个基本加工图案的基本全息图，并且确定空间光调制器中的基本全息图的显示区域，使得 当输入到空间光调制器中的基本全息图的显示区域的激光束的强度被定义为I时，对于所选择的各个基本全息图，“I＆eegr / / n”的值的偏差变小， 基本全息图中的激光束被定义为＆eegr，并且与基本全息图对应的基本加工图案中的聚光点的数量被定义为n。
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公开(公告)号：US08867113B2
公开(公告)日：2014-10-21
申请号：US13060614
申请日：2009-08-24
申请人： Naoya Matsumoto , Takashi Inoue , Norihiro Fukuchi , Haruyasu Ito
发明人： Naoya Matsumoto , Takashi Inoue , Norihiro Fukuchi , Haruyasu Ito
CPC分类号： G02B5/32 , B23K26/032 , B23K26/064 , B23K26/0643 , B23K26/066 , G03H1/2294 , G03H2001/0094 , G03H2210/452 , G03H2225/32 , G03H2240/51
摘要： A laser processing device includes a laser light source, a spatial light modulator, a control section, and a condensing optical system. The spatial light modulator, presents a hologram for modulating the phase of the laser light in each of a plurality of two-dimensionally arrayed pixels, and outputs the phase-modulated laser light. The control section causes a part of the phase-modulated laser light (incident light) to be condensed at a condensing position in a processing region as a laser light (contribution light) having a constant energy not less than a predetermined threshold X. The control section causes a laser light (unnecessary light) other than the contribution light condensed to the condensing position existing in the processing region to be dispersed and condensed at a condensing position existing in a non-processing region as a plurality of laser lights (non-contribution lights) having an energy less than the predetermined threshold.
摘要翻译： 激光加工装置包括激光光源，空间光调制器，控制部和聚光系统。 空间光调制器提供用于调制多个二维排列的像素中的每一个中的激光的相位的全息图，并输出相位调制的激光。 控制部使相位调制激光（入射光）的一部分在作为具有恒定能量的预定阈值X以上的激光（贡献光）的处理区域中的聚光位置聚光。控制部 在不存在于非处理区域的聚光位置处，使存在于处理区域中的聚光位置聚光的贡献光之外的激光（不必要的光）作为多个激光（非贡献 光）具有小于预定阈值的能量。
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公开(公告)号：US08749463B2
公开(公告)日：2014-06-10
申请号：US11889181
申请日：2007-08-09
IPC分类号： G09G3/36
CPC分类号： G09G3/3648 , G01M11/0257 , G01M11/0271 , G02F1/13306 , G02F1/136277 , G02F2001/136254 , G02F2001/215 , G02F2203/12 , G02F2203/50 , G02F2203/69 , G09G3/3611 , G09G5/10 , G09G2300/0491 , G09G2300/08 , G09G2320/02 , G09G2320/0693
摘要： A phase-modulating apparatus includes a spatial light modulator, an input value setting unit, a plurality of sets of reference data, a converting unit, and a driving unit. The input value setting unit sets an input value for each pixel. Each set of reference data corresponds to at least one pixel. The converting unit converts an input value inputted for each pixel to a control value by referencing the corresponding set of reference data. The driving unit converts the control value to a voltage value. The driving unit drives each pixel with a drive voltage corresponding to the voltage value. Each set of reference data correlates a plurality of first values from which input values are taken, and a plurality of second values from which control values are taken to ensure that the relationship between the plurality of first values and phase modulation amounts attained by the corresponding at least one pixel is a prescribed linear relationship.
摘要翻译： 相位调制装置包括空间光调制器，输入值设定单元，多组参考数据，转换单元和驱动单元。 输入值设定单元设定各像素的输入值。 每组参考数据对应于至少一个像素。 转换单元通过参考相应的一组参考数据将对于每个像素输入的输入值转换为控制值。 驱动单元将控制值转换为电压值。 驱动单元用对应于电压值的驱动电压驱动每个像素。 每组参考数据将从输入值取得的多个第一值和从其获取控制值的多个第二值相关联，以确保多个第一值与相应调制量之间的关系由相应的 至少一个像素是规定的线性关系。
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公开(公告)号：US08576206B2
公开(公告)日：2013-11-05
申请号：US12746183
申请日：2008-12-04
IPC分类号： G09G5/00
CPC分类号： G02F1/13318 , G02F1/136277 , G02F2203/50 , G09G3/2092 , G09G3/3611 , G09G2300/0491 , G09G2320/02 , G09G2320/0285
摘要： The present invention relates to a phase modulating apparatus capable of highly accurately and easily correcting the phase modulation characteristic of a reflective electric address spatial light modulator even when a condition of input light is changed. In the LCOS phase modulating apparatus, an input unit inputs the condition of the input light, and a processing unit sets an input value for each pixel. A correction value deriving unit determines a correction condition according to the condition of the input light. A control input value converting unit converts the input value set for each pixel into a corrected input value based on the correction condition. An LUT processing unit converts the corrected input value into a voltage value, and drives each pixel by using a drive voltage equivalent to the converted voltage value.
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公开(公告)号：US08482829B2
公开(公告)日：2013-07-09
申请号：US12566143
申请日：2009-09-24
申请人： Yuu Takiguchi , Naoya Matsumoto , Norihiro Fukuchi , Takashi Inoue , Tamiki Takemori , Naohisa Mukozaka
发明人： Yuu Takiguchi , Naoya Matsumoto , Norihiro Fukuchi , Takashi Inoue , Tamiki Takemori , Naohisa Mukozaka
IPC分类号： G03H1/08
CPC分类号： H01S3/0085 , B23K26/06 , B23K26/352 , G02B3/08 , G02B5/32 , G02B13/22 , G03H1/0005 , G03H1/08 , G03H1/0808 , G03H1/2294 , G03H2001/0094 , G03H2225/32
摘要： A laser processing apparatus 1 includes a laser light source 10, a phase modulation type spatial light modulator 20, a driving unit 21, a control unit 22, and an imaging optical system 30. The imaging optical system 30 may be a telecentric optical system. A storage unit 21A included in the driving unit stores a plurality of basic holograms corresponding to a plurality of basic processing patterns and a focusing hologram corresponding to a Fresnel lens pattern. The control unit 22 arranges in parallel two or more basic holograms selected from the plurality of basic holograms stored in the storage unit 21A, overlaps the focusing hologram with each of the basic holograms arranged in parallel to form the whole hologram, and presents the formed whole hologram to the spatial light modulator 20.
摘要翻译： 激光处理装置1包括激光源10，相位调制型空间光调制器20，驱动单元21，控制单元22和成像光学系统30.成像光学系统30可以是远心光学系统。 包括在驱动单元中的存储单元21A存储对应于多个基本处理模式的多个基本全息图和对应于菲涅耳透镜图案的聚焦全息图。 控制单元22平行地布置从存储在存储单元21A中的多个基本全息图中选择的两个或更多个基本全息图，与聚焦全息图重叠，每个基本全息图平行布置以形成整个全息图，并呈现形成的整体 全息图到空间光调制器20。
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公开(公告)号：US20110181929A1
公开(公告)日：2011-07-28
申请号：US13060614
申请日：2009-08-24
申请人： Naoya Matsumoto , Takashi Inoue , Norihiro Fukuchi , Haruyasu Ito
发明人： Naoya Matsumoto , Takashi Inoue , Norihiro Fukuchi , Haruyasu Ito
IPC分类号： G02B5/32
CPC分类号： G02B5/32 , B23K26/032 , B23K26/064 , B23K26/0643 , B23K26/066 , G03H1/2294 , G03H2001/0094 , G03H2210/452 , G03H2225/32 , G03H2240/51
摘要： A laser processing device 1 includes a laser light source 10, a spatial light modulator 20, a control section 22, and a condensing optical system 30. The spatial light modulator 20 is input with a laser light output from the laser light source 10, presents a hologram for modulating the phase of the laser light in each of a plurality of two-dimensionally arrayed pixels, and outputs the phase-modulated laser light. The control section 22 causes a part of the phase-modulated laser light (incident light) to be condensed at a condensing position existing in a processing region as a laser light (contribution light) having a constant energy not less than a predetermined threshold X. On the other hand, the control section 22 causes a laser light (unnecessary light) other than the contribution light condensed to the condensing position existing in the processing region to be dispersed and condensed at a condensing position existing in a non-processing region as a plurality of laser lights (non-contribution lights) having an energy less than the predetermined threshold X.
摘要翻译： 激光加工装置1包括激光光源10，空间光调制器20，控制部22和聚光光学系统30.空间光调制器20以从激光光源10输出的激光输入，呈现 用于调制多个二维排列的像素中的每一个中的激光的相位的全息图，并输出相位调制的激光。 控制部分22使得相位调制激光（入射光）的一部分在存在于处理区域中的聚光位置处被冷凝为具有不小于预定阈值X的恒定能量的激光（贡献光）。 另一方面，控制部22使存在于处理区域中的聚光位置的会聚光以外的激光（不必要的光）在存在于非处理区域的聚光位置分散并浓缩为 具有能量小于预定阈值X的多个激光（非贡献光）。
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公开(公告)号：US20110064113A1
公开(公告)日：2011-03-17
申请号：US12991268
申请日：2009-05-21
申请人： Taro Ando , Haruyas Ito , Yoshiyuki Ohtake , Takashi Inoue , Naoya Matsumoto , Norihiro Fukuchi
发明人： Taro Ando , Haruyas Ito , Yoshiyuki Ohtake , Takashi Inoue , Naoya Matsumoto , Norihiro Fukuchi
IPC分类号： H01S3/08
CPC分类号： H01S3/0804 , H01S3/0805 , H01S3/08059 , H01S3/08068 , H01S3/10053 , H01S3/105
摘要： A laser light source 1 is provided with a first reflection mirror 11, a laser medium 12, an aperture 13, an output mirror 14, a half mirror 15, a light beam diameter adjuster 16, and a second reflection mirror 17, and outputs laser oscillation light 31 reflected by the half mirror 15 to the outside. The main resonator is composed by the first reflection mirror 11 and the output mirror 14 disposed so as to be opposed to each other with the laser medium 12 placed therebetween. The external resonator is composed by the output mirror 14 and the second reflection mirror 17 disposed so as to be opposed to each other. The second reflection mirror 17 is configured such that it gives amplitude or phase variations to respective positions in the section of a light beam when the light is reflected, the second reflection mirror presents an amplitude or phase variation distribution, and determines the transverse mode of the laser oscillation light 31 based on the amplitude or phase variation distribution. Thus, a laser light source capable of easily controlling the transverse mode of the laser oscillation light can be realized.
摘要翻译： 激光光源1设置有第一反射镜11，激光介质12，孔13，输出镜14，半透半反镜15，光束直径调节器16和第二反射镜17，并且输出激光 由半反射镜15反射到外部的振荡光31。 主谐振器由第一反射镜11和输出反射镜14构成，其中激光介质12位于它们之间，以彼此相对。 外部谐振器由输出反射镜14和设置为彼此相对设置的第二反射镜17组成。 第二反射镜17被构造成使得当光被反射时，其对光束的部分中的相应位置给出幅度或相位变化，第二反射镜呈现振幅或相位变化分布，并且确定第二反射镜17的横向模式 基于振幅或相位变化分布的激光振荡光31。 因此，可以实现能够容易地控制激光振荡光的横向模式的激光源。
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公开(公告)号：US20100270277A1
公开(公告)日：2010-10-28
申请号：US12742491
申请日：2008-08-26
IPC分类号： B23K26/00
CPC分类号： B23K26/00 , B23K26/06 , B23K26/0624 , B23K26/064 , B23K26/0661 , B23K26/067 , B23K26/355 , G03H1/2294 , G03H2001/0094 , G03H2225/32
摘要： A laser machining device 1 comprises a laser light source 10, a spatial light modulator 20, a controller 22, a converging optical system 30, and a shielding member 40. The phase-modulating spatial light modulator 20 inputs a laser beam outputted from the laser light source 10, displays a hologram modulating a phase of the laser beam at each of a plurality of pixels arranged two-dimensionally, and outputs the phase-modulated laser beam. The controller 22 causes the spatial light modulator 20 to display a plurality of holograms sequentially, lets the converging optical system 30 converge the laser beam outputted from the spatial light modulator 20 at converging positions having a fixed number of M, selectively places N converging positions out of the M converging positions into a machining region 91, and machines an object to be machined 90.
摘要翻译： 激光加工装置1包括激光源10，空间光调制器20，控制器22，会聚光学系统30和屏蔽构件40.相位调制空间光调制器20输入从激光器输出的激光束 光源10显示调制在二维排列的多个像素中的每一个处的激光束的相位的全息图，并输出相位调制的激光束。 控制器22使空间光调制器20依次显示多个全息图，使会聚光学系统30将从空间光调制器20输出的激光束会聚在具有固定数量的M的会聚位置，选择性地将N个收敛位置放出 的M个会聚位置进入加工区域91，并且对要加工的物体进行加工90。
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公开(公告)号：US07961371B2
公开(公告)日：2011-06-14
申请号：US12516416
申请日：2007-09-14
申请人： Taro Ando , Yoshiyuki Ohtake , Norihiro Fukuchi , Naoya Matsumoto , Haruyasu Ito
发明人： Taro Ando , Yoshiyuki Ohtake , Norihiro Fukuchi , Naoya Matsumoto , Haruyasu Ito
IPC分类号： G02F1/01
CPC分类号： G02B27/09 , G02B5/3025 , G02B21/32 , G02B26/06
摘要： The light beam generator 1 is provided with a laser light source 10, an optical phase modulation element 15 and others. The optical phase modulation element 15 receives coherent light output from the laser light source 10 and passed through a beam splitter 14 to modulate a phase of the light depending on a position on the beam cross section of the light, and outputs the light after the phase modulation to the beam splitter 14. A polar coordinate system (r, θ) in which a predetermined position is given as an origin is set on the beam cross section of the light input in the optical phase modulation element 15, and when (p+1) domains divided by p (number of pieces) circumferences in which the predetermined position is given as a center are set, of these (p+1) domains, a phase modulation amount φ at each position inside an even numbered domain counted from the inside is expressed by a formula of “φ=qθ”, and a phase modulation amount φ at each position inside an odd numbered domain counted from the inside is expressed by a formula of “φ=qθ+π”.
摘要翻译： 光束发生器1设置有激光光源10，光相位调制元件15等。 光相位调制元件15接收从激光光源10输出的相干光，并通过分束器14，根据光束横截面上的位置调制光的相位，并输出相位后的光 在光学相位调制元件15中的光输入的光束横截面上设置有以原点被赋予预定位置的极坐标系（r，θ），并且当（p +1）域除以这些（p + 1）域的p（个数）周期，其中给定预定位置为中心的相位调制量＆phgr; 在从内部计数的偶数域内的每个位置由“＆phgr; = q＆thetas”的公式表示，并且相位调制量＆phgr; 在内部计数的奇数域内的每个位置由公式“＆phgr; = q＆thetas; +＆pgr”表示。
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公开(公告)号：US20100060969A1
公开(公告)日：2010-03-11
申请号：US12516416
申请日：2007-09-14
申请人： Taro Ando , Yoshiyuki Ohtake , Norihiro Fukuchi , Naoya Matsumoto , Haruyasu Ito
发明人： Taro Ando , Yoshiyuki Ohtake , Norihiro Fukuchi , Naoya Matsumoto , Haruyasu Ito
IPC分类号： G02F1/01
CPC分类号： G02B27/09 , G02B5/3025 , G02B21/32 , G02B26/06
摘要： The light beam generator 1 is provided with a laser light source 10, an optical phase modulation element 15 and others. The optical phase modulation element 15 receives coherent light output from the laser light source 10 and passed through a beam splitter 14 to modulate a phase of the light depending on a position on the beam cross section of the light, and outputs the light after the phase modulation to the beam splitter 14. A polar coordinate system (r, θ) in which a predetermined position is given as an origin is set on the beam cross section of the light input in the optical phase modulation element 15, and when (p+1) domains divided by p (number of pieces) circumferences in which the predetermined position is given as a center are set, of these (p+1) domains, a phase modulation amount φ at each position inside an even numbered domain counted from the inside is expressed by a formula of “φ=q θ”, and a phase modulation amount φ at each position inside an odd numbered domain counted from the inside is expressed by a formula of “φ=q θ+π”.
摘要翻译： 光束发生器1设置有激光光源10，光相位调制元件15等。 光相位调制元件15接收从激光光源10输出的相干光，并通过分束器14，根据光束横截面上的位置调制光的相位，并输出相位后的光 在光学相位调制元件15中的光输入的光束横截面上设置有以原点被赋予预定位置的极坐标系（r，θ），并且当（p +1）域除以这些（p + 1）域的p（个数）周期，其中给定预定位置为中心的相位调制量＆phgr; 在从内部计数的偶数域内的每个位置由“＆phgr; = q＆thetas”的公式表示，并且相位调制量＆phgr; 在内部计数的奇数域内的每个位置由公式“＆phgr; = q＆thetas; +＆pgr”表示。
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