公开(公告)号：US20060285125A1

公开(公告)日：2006-12-21

申请号：US11425005

申请日：2006-06-19

申请人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa

发明人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa

IPC分类号： G01B9/02

CPC分类号： G01J9/0246

摘要： A laser apparatus is disclosed. An optical element receives at least a part of laser light emitted from a laser generation source and generates interference fringes. Each of first and second two-divided detectors has two detectors arranged in the direction of which the interference fringes appear. Each of the detectors detects an amount of light of the interference fringes. These two-divided detectors are spaced apart for an odd-number multiple of nearly ¼ period of interference fringes and disposed on a plane perpendicular to an optical path of the interference fringes. Each of first and second calculation sections calculates a first difference signal of detection signals of two detectors of the two-divided detector. A selection section selects one of the first and second difference signals. A determination section determines a wavelength of the laser light corresponding to a value of the difference signal selected from the first and second difference signals.

摘要翻译： 公开了一种激光装置。 光学元件接收从激光发生源发射的至少一部分激光，并产生干涉条纹。 第一和第二二分割检测器中的每一个具有布置在干涉条纹出现的方向上的两个检测器。 每个检测器检测干涉条纹的光量。 这两个分开的检测器间隔开几个1/4的干涉条纹的奇数倍，并设置在与干涉条纹的光路垂直的平面上。 第一和第二计算部分中的每一个计算双分割检测器的两个检测器的检测信号的第一差分信号。 选择部分选择第一和第二差分信号之一。 确定部分确定与从第一和第二差分信号中选择的差分信号的值相对应的激光的波长。

公开(公告)号：US07940458B2

公开(公告)日：2011-05-10

申请号：US11250326

申请日：2005-10-14

申请人： Kageyasu Sako

发明人： Kageyasu Sako

IPC分类号： G02B5/18

CPC分类号： G11B7/1395 ,  G02B27/1073 ,  G02B27/108 ,  G02B27/4238 ,  G11B7/0065 ,  G11B7/1263 ,  G11B7/1353 ,  H01S5/005 ,  H01S5/0687 ,  H01S5/141 ,  H01S2302/00

摘要： A laser light source device may include a laser diode, first and second optical elements, a diffraction grating, and a detector. The first optical element may collimate laser light emitted from the laser diode. The diffraction grating may reflect zero-order light in the collimated laser light in a predetermined direction other than a direction toward the laser diode and may reflect first-order light in the collimated laser light toward the laser diode. The second optical element may reflect the zero-order light reflected by the diffraction grating in a predetermined direction while transmitting a part of the zero-order light reflected by the diffraction grating. The detector may detect at least one of a wavelength and an intensity of the light that passes through the second optical element.

摘要翻译： 激光光源装置可以包括激光二极管，第一和第二光学元件，衍射光栅和检测器。 第一光学元件可以校准从激光二极管发射的激光。 衍射光栅可以在除了朝向激光二极管的方向之外的预定方向上反射准直激光中的零级光，并且可以将准直激光中的一阶光反射到激光二极管。 第二光学元件可以在传输由衍射光栅反射的零级光的一部分的同时沿预定方向反射由衍射光栅反射的零级光。 检测器可以检测通过第二光学元件的光的波长和强度中的至少一个。

公开(公告)号：US20080180659A1

公开(公告)日：2008-07-31

申请号：US11742800

申请日：2007-05-01

申请人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa ,  Shinji Yamada ,  Katsuhiro Agatsuma

发明人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa ,  Shinji Yamada ,  Katsuhiro Agatsuma

IPC分类号： G01J3/00

CPC分类号： G01J9/00 ,  G01J9/0246 ,  G01J2009/0234 ,  H01S5/0014 ,  H01S5/0071 ,  H01S5/0612 ,  H01S5/0654 ,  H01S5/141 ,  H01S5/143

摘要： A laser system includes a laser diode that oscillates in a multi-mode and has characteristics in which its oscillation wavelength varies with temperature, a grating that receives a light beam emitted from the laser diode and returns a diffracted beam to the laser diode, a mechanism that changes the wavelength of the diffracted beam returned to the laser diode, a wavelength detector that detects the wavelength of an output beam which is the same as that of the diffracted beam returned to the laser diode, a temperature regulator that maintains the laser diode at a predetermined temperature, and a control unit that controls the mechanism so that the output beam having a predetermined wavelength is output and controls the temperature regulator so that the laser diode oscillates at the predetermined wavelength.

摘要翻译： 激光系统包括以多模振荡并具有其振荡波长随温度变化的特性的激光二极管，接收从激光二极管发射的光束并将衍射光束返回到激光二极管的光栅，机构 其改变了返回到激光二极管的衍射光束的波长，检测与返回到激光二极管的衍射光束相同的输出光束的波长的波长检测器，将激光二极管保持在 以及控制单元，其控制机构，使得具有预定波长的输出光束被输出并控制温度调节器，使得激光二极管以预定波长振荡。

公开(公告)号：US07580433B2

公开(公告)日：2009-08-25

申请号：US11742800

申请日：2007-05-01

申请人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa ,  Shinji Yamada ,  Katsuhiro Agatsuma

发明人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa ,  Shinji Yamada ,  Katsuhiro Agatsuma

IPC分类号： H01S3/04

CPC分类号： G01J9/00 ,  G01J9/0246 ,  G01J2009/0234 ,  H01S5/0014 ,  H01S5/0071 ,  H01S5/0612 ,  H01S5/0654 ,  H01S5/141 ,  H01S5/143

摘要： A laser system includes a laser diode that oscillates in a multi-mode and has characteristics in which its oscillation wavelength varies with temperature, a grating that receives a light beam emitted from the laser diode and returns a diffracted beam to the laser diode, a mechanism that changes the wavelength of the diffracted beam returned to the laser diode, a wavelength detector that detects the wavelength of an output beam which is the same as that of the diffracted beam returned to the laser diode, a temperature regulator that maintains the laser diode at a predetermined temperature, and a control unit that controls the mechanism so that the output beam having a predetermined wavelength is output and controls the temperature regulator so that the laser diode oscillates at the predetermined wavelength.

摘要翻译： 激光系统包括以多模振荡并具有其振荡波长随温度变化的特性的激光二极管，接收从激光二极管发射的光束并将衍射光束返回到激光二极管的光栅，机构 其改变了返回到激光二极管的衍射光束的波长，检测与返回到激光二极管的衍射光束相同的输出光束的波长的波长检测器，将激光二极管保持在 以及控制单元，其控制机构，使得具有预定波长的输出光束被输出并控制温度调节器，使得激光二极管以预定波长振荡。

公开(公告)号：US07426222B2

公开(公告)日：2008-09-16

申请号：US11425005

申请日：2006-06-19

申请人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa

发明人： Tomiji Tanaka ,  Kageyasu Sako ,  Ryo Kasegawa

IPC分类号： H01S5/0683 ,  H01S5/14

CPC分类号： G01J9/0246

摘要： A laser apparatus is disclosed. An optical element receives at least a part of laser light emitted from a laser generation source and generates interference fringes. Each of first and second two-divided detectors has two detectors arranged in the direction of which the interference fringes appear. Each of the detectors detects an amount of light of the interference fringes. These two-divided detectors are spaced apart for an odd-number multiple of nearly ¼ period of interference fringes and disposed on a plane perpendicular to an optical path of the interference fringes. Each of first and second calculation sections calculates a first difference signal of detection signals of two detectors of the two-divided detector. A selection section selects one of the first and second difference signals. A determination section determines a wavelength of the laser light corresponding to a value of the difference signal selected from the first and second difference signals.

摘要翻译： 公开了一种激光装置。 光学元件接收从激光发生源发射的至少一部分激光，并产生干涉条纹。 第一和第二二分割检测器中的每一个具有布置在干涉条纹出现的方向上的两个检测器。 每个检测器检测干涉条纹的光量。 这两个分开的检测器间隔开几个1/4的干涉条纹的奇数倍，并设置在与干涉条纹的光路垂直的平面上。 第一和第二计算部分中的每一个计算双分割检测器的两个检测器的检测信号的第一差分信号。 选择部分选择第一和第二差分信号之一。 确定部分确定与从第一和第二差分信号中选择的差分信号的值相对应的激光的波长。

公开(公告)号：US20080037088A1

公开(公告)日：2008-02-14

申请号：US11824518

申请日：2007-06-29

申请人： Kageyasu Sako ,  Tomiji Tanaka

发明人： Kageyasu Sako ,  Tomiji Tanaka

IPC分类号： G03H1/04

CPC分类号： G03H1/0486 ,  G03H1/202 ,  G03H2001/0296 ,  G11B7/0065 ,  G11B7/261

摘要： An apparatus for producing a duplicate hologram recording medium includes: a positioning section configured to place the duplication master and the duplicate hologram recording medium at predetermined relative positions; an angle selective plate arranged between the duplication master and the duplicate hologram recording medium, the angle selective plate having an angle selective film whose transmittance changes in accordance with an incidence angle of a light beam; and a duplicating-reference-beam generating and radiating section generating a duplicating reference beam, and radiating the duplicating reference beam at such an incidence angle that the duplicating reference beam is transmitted through a predetermined region of a recording layer of the duplication master and is reflected by the angle selective film.

摘要翻译： 一种重复全息图记录介质的制造装置，其特征在于，具备：将复制主体和复制全息图记录介质配置在规定的相对位置的定位部， 布置在复制主体和复制全息图记录介质之间的角度选择板，所述角度选择板具有根据光束的入射角而透射率变化的角度选择膜; 以及生成复制参考光束的复制参考光束产生和辐射部分，并且以复制参考光束通过复制主记录的记录层的预定区域传播的入射角辐射复制参考光束，并被反射 通过角度选择膜。

公开(公告)号：US07889407B2

公开(公告)日：2011-02-15

申请号：US11824518

申请日：2007-06-29

申请人： Kageyasu Sako ,  Tomiji Tanaka

发明人： Kageyasu Sako ,  Tomiji Tanaka

IPC分类号： G03H1/02 ,  G03H1/12 ,  G03H1/04 ,  G03F7/00

CPC分类号： G03H1/0486 ,  G03H1/202 ,  G03H2001/0296 ,  G11B7/0065 ,  G11B7/261

摘要： An apparatus for producing a duplicate hologram recording medium includes: a positioning section configured to place the duplication master and the duplicate hologram recording medium at predetermined relative positions; an angle selective plate arranged between the duplication master and the duplicate hologram recording medium, the angle selective plate having an angle selective film whose transmittance changes in accordance with an incidence angle of a light beam; and a duplicating-reference-beam generating and radiating section generating a duplicating reference beam, and radiating the duplicating reference beam at such an incidence angle that the duplicating reference beam is transmitted through a predetermined region of a recording layer of the duplication master and is reflected by the angle selective film.

摘要翻译： 一种重复全息图记录介质的制造装置，其特征在于，具备：将复制主体和复制全息图记录介质配置在规定的相对位置的定位部， 布置在复制主体和复制全息图记录介质之间的角度选择板，所述角度选择板具有根据光束的入射角而透射率变化的角度选择膜; 以及生成复制参考光束的复制参考光束产生和辐射部分，并且以复制参考光束通过复制主记录的记录层的预定区域传播的入射角辐射复制参考光束，并被反射 通过角度选择膜。

公开(公告)号：US20060114535A1

公开(公告)日：2006-06-01

申请号：US11250326

申请日：2005-10-14

申请人： Kageyasu Sako

发明人： Kageyasu Sako

IPC分类号： G02B26/10

CPC分类号： G11B7/1395 ,  G02B27/1073 ,  G02B27/108 ,  G02B27/4238 ,  G11B7/0065 ,  G11B7/1263 ,  G11B7/1353 ,  H01S5/005 ,  H01S5/0687 ,  H01S5/141 ,  H01S2302/00

摘要： A laser light source device includes a laser diode that emits multimode laser light, a first optical element that collimates the laser light emitted from the laser diode, a diffraction grating that reflects zero-order light in the collimated laser light in a predetermined direction other than a direction toward the laser diode and reflects first-order light in the collimated laser light toward the laser diode, a second optical element that reflects the zero-order light reflected by the diffraction grating in a predetermined direction while transmitting a part of the zero-order light reflected by the diffraction grating, and a first detector that detects at least one of a wavelength and an intensity of the light that passes through the second optical element.

摘要翻译： 激光光源装置包括：发射多模激光的激光二极管，准直激光二极管发射的激光的第一光学元件;反射准直激光中的零级光以除预定方向以外的预定方向反射的衍射光栅; 朝向激光二极管的方向，并将准直激光中的一级光朝向激光二极管反射;第二光学元件，其将由衍射光栅反射的零级光沿预定方向反射，同时透射零分光源的一部分， 由衍射光栅反射的次序光，以及检测通过第二光学元件的光的波长和强度中的至少一个的第一检测器。