公开(公告)号：US08941903B2

公开(公告)日：2015-01-27

申请号：US13918225

申请日：2013-06-14

Applicant: Hamamatsu Photonics K.K.

Inventor： Yuu Takiguchi ,  Naoya Matsumoto ,  Norihiro Fukuchi ,  Takashi Inoue ,  Tamiki Takemori ,  Naohisa Mukozaka

IPC: G03H1/08 ,  H01S3/00 ,  B23K26/00 ,  B23K26/06 ,  G02B5/32 ,  G03H1/00 ,  G02B3/08 ,  G02B13/22 ,  G03H1/22

CPC classification number: H01S3/0085 ,  B23K26/06 ,  B23K26/352 ,  G02B3/08 ,  G02B5/32 ,  G02B13/22 ,  G03H1/0005 ,  G03H1/08 ,  G03H1/0808 ,  G03H1/2294 ,  G03H2001/0094 ,  G03H2225/32

Abstract: A laser processing apparatus including a laser light source, a phase modulation type spatial light modulator, a driving unit, a control unit, and an imaging optical system. A storage unit that is 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 arranges in parallel two or more basic holograms selected from the plurality of basic holograms stored in the storage unit, 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.

Abstract translation: 一种激光加工装置，包括激光光源，相位调制型空间光调制器，驱动单元，控制单元和成像光学系统。 包括在驱动单元中的存储单元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尔透镜图案的聚焦全息图。 控制单元平行布置从存储在存储单元中的多个基本全息图中选择的两个或多个基本全息图，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，并将形成的全息图呈现为 空间光调制器。

公开(公告)号：US10192502B2

公开(公告)日：2019-01-29

申请号：US14885718

申请日：2015-10-16

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Naoya Matsumoto ,  Takashi Inoue ,  Norihiro Fukuchi ,  Yuji Kobayashi ,  Tsutomu Hara

IPC: G09G3/36 ,  G01M11/02 ,  G09G5/10 ,  G02F1/133 ,  G02F1/1362 ,  G02F1/21

Abstract: In an apparatus for modulating light, an spatial light modulator includes a plurality of pixels and configured to modulate input light in response to a drive voltage for each of the pixels. An input value setting unit is configured to set an input value for the each of pixels. The input value is a digital value, an entire gray level of the digital value is “N”, and “N” is a natural number. A converting unit is configured to convert the input value to a control value. A control value is a digital value, an entire gray level of the control value is “M”, and “M” is a natural number greater than “N”. A driving unit is configured to convert the control value to a voltage value and drive the each of the pixels in response to the drive voltage corresponding to the voltage value.

公开(公告)号：US08575514B2

公开(公告)日：2013-11-05

申请号：US13678006

申请日：2012-11-15

Applicant: Hamamatsu Photonics K.K.

Inventor： Naoya Matsumoto ,  Takashi Inoue ,  Norihiro Fukuchi ,  Haruyasu Ito ,  Yuu Takiguchi

IPC: B23K26/00 ,  B23K26/14 ,  B23K26/16 ,  B23K26/06 ,  B23K26/02

CPC classification number: B23K26/00 ,  B23K26/06 ,  B23K26/0624 ,  B23K26/064 ,  B23K26/0661 ,  B23K26/067 ,  B23K26/355 ,  G03H1/2294 ,  G03H2001/0094 ,  G03H2225/32

Abstract: A light irradiation device and method for irradiating converged light with an object include a light source configured to output a light, a phase-modulating spatial light modulator, a controller, and a converging optical system. The phase-modulating spatial light modulator is configured to input the light outputted from the light source and to display a hologram modulating a phase of the light at each of a plurality of pixels arranged two-dimensionally, and outputs the phase-modulated light. The controller is configured to cause the spatial light modulator to display a hologram such that the light outputted from the spatial light modulator is converged at a plurality of converging positions. The controller causes the spatial light modulator to display a first hologram and performs a feedback of the first hologram so as to modify the first hologram. The modifying of the first hologram is performed by measuring intensity of the light converged.

Abstract translation: 用于对物体照射会聚光的光照射装置和方法包括配置为输出光的光源，相位调制用空间光调制器，控制器和会聚光学系统。 相位调制空间光调制器被配置为输入从光源输出的光并且显示调制在二维排列的多个像素中的每一个处的光的相位的全息图，并输出相位调制光。 控制器被配置为使得空间光调制器显示全息图，使得从空间光调制器输出的光会聚在多个会聚位置。 控制器使得空间光调制器显示第一全息图并且执行第一全息图的反馈，以便修改第一全息图。 通过测量聚光的强度来进行第一全息图的修改。

公开(公告)号：US09007286B2

公开(公告)日：2015-04-14

申请号：US14045513

申请日：2013-10-03

Applicant: Hamamatsu Photonics K.K.

Inventor： Naoya Matsumoto ,  Norihiro Fukuchi ,  Takashi Inoue ,  Yasunori Igasaki

IPC: G09G3/36 ,  G02F1/133 ,  G09G3/20 ,  G02F1/1362

CPC classification number: G02F1/13318 ,  G02F1/136277 ,  G02F2203/50 ,  G09G3/2092 ,  G09G3/3611 ,  G09G2300/0491 ,  G09G2320/02 ,  G09G2320/0285

Abstract: 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.

Abstract translation: 本发明涉及即使当输入光的条件改变时也能高精度地且容易地校正反射式电地址空间光调制器的相位调制特性的相位调制装置。 在LCOS相位调制装置中，输入单元输入输入光的条件，并且处理单元设置每个像素的输入值。 校正值导出单元根据输入光的条件来确定校正条件。 控制输入​​值转换单元基于校正条件将针对每个像素设置的输入值转换为校正输入值。 LUT处理单元将校正的输入值转换为电压值，并且通过使用与转换的电压值相当的驱动电压驱动每个像素。