公开(公告)号：US06525879B1

公开(公告)日：2003-02-25

申请号：US09577827

申请日：2000-05-25

申请人： Katsunori Kawano ,  Jiro Minabe ,  Takehiko Niitsu ,  Tsutomu Ishii ,  Yasunari Nishikata ,  Kazuo Baba

发明人： Katsunori Kawano ,  Jiro Minabe ,  Takehiko Niitsu ,  Tsutomu Ishii ,  Yasunari Nishikata ,  Kazuo Baba

IPC分类号： G02B2744

CPC分类号： G02B27/46 ,  Y10S359/90

摘要： An optical filtering apparatus and method, wherein at least one polarizer is located in the path of radiation passing through a birefringent medium. The invention can be used to process complementary bands of spatial frequency spectra. The invention can be practiced using a polarizing beam splitter. The invention can also be practiced using an optical storage layer forming part of the birefringent medium.

摘要翻译： 一种光学滤波装置和方法，其中至少一个偏振器位于穿过双折射介质的辐射路径中。 本发明可用于处理空间频谱的互补带。 本发明可以使用偏振分束器来实现。 本发明也可以使用形成双折射介质的一部分的光学存储层来实现。

公开(公告)号：US06512733B1

公开(公告)日：2003-01-28

申请号：US09385034

申请日：1999-08-30

申请人： Katsunori Kawano ,  Tsutomu Ishii ,  Kazuo Baba

发明人： Katsunori Kawano ,  Tsutomu Ishii ,  Kazuo Baba

IPC分类号： G11B700

CPC分类号： G11B7/24085 ,  G11B7/128 ,  G11B7/1369 ,  G11B7/244 ,  G11B7/245 ,  G11B7/25

摘要： The present invention provides an optical recording method, optical recording apparatus, optical reading method, and optical reading apparatus which are capable of high density recording an d high speed recording, and high speed reading. In recording, a recording light comprising a plurality of polarization distributions corresponding to the data information; is generated, and irradiated onto an optical recording medium to thereby record a plurality of polarization distributions of the recording light on the optical recording medium as photo-induced birefringence. In reading, a reading light having a uniform polarization distribution is irradiated onto the recording medium in which the data information has been recorded previously, and the polarization distribution of the transmitted light or reflected light in the optical recording medium is read as the polarization distribution of the reproducing light.

摘要翻译： 本发明提供能够高密度记录高速记录和高速读取的光学记录方法，光学记录装置，光学读取方法和光学读取装置。 在记录中，记录光包括对应于数据信息的多个偏振分布; 并且照射到光学记录介质上，从而将记录光的多个偏振分布记录在光学记录介质上作为光致双折射。 在读取中，将具有均匀偏振分布的读取光照射到其中已经记录了数据信息的记录介质上，并且将光学记录介质中的透射光或反射光的偏振分布读取为 再现光。

公开(公告)号：US08636668B2

公开(公告)日：2014-01-28

申请号：US12428569

申请日：2009-04-23

申请人： Katsunori Kawano ,  Yoshio Nishihara ,  Yasuaki Kuwata

发明人： Katsunori Kawano ,  Yoshio Nishihara ,  Yasuaki Kuwata

IPC分类号： A61B5/02 ,  G01P3/36

CPC分类号： A61B5/0261 ,  A61B5/0059 ,  G01P3/36 ,  G01P5/26 ,  G01S17/325 ,  G01S17/58

摘要： Provided is a measuring apparatus that includes: a semiconductor laser device that emits a laser light beam to an object to be measured; a driving unit that provides a driving signal for modulation drive of the semiconductor laser device; a first detection unit that detects a first electrical signal that corresponds to the intensity of the laser light beam modulated due to the self-coupling effect, in a first half-cycle of the driving signal; a second detection unit that detects a second electrical signal that corresponds to the intensity of a second laser light beam modulated due to the self-coupling effect, in a second half-cycle of the driving signal being in an opposite phase of the first half-cycle; a calculation unit that calculates a difference between the first and second electrical signals; and a measuring unit that measures a change in the state of the object based on the calculated difference.

摘要翻译： 本发明提供一种测量装置，包括：将激光束发射到被测量物体的半导体激光装置; 提供用于半导体激光装置的调制驱动的驱动信号的驱动单元; 第一检测单元，在驱动信号的前半个周期中，检测与由于自耦合效应而调制的激光束的强度对应的第一电信号; 第二检测单元，在所述驱动信号的第二半周期中，所述第二检测单元检测与由所述自耦合效应调制的第二激光束的强度对应的第二电信号，所述第二电信号处于所述第一半耦合效应的相反相位， 周期; 计算单元，计算第一和第二电信号之间的差; 以及测量单元，其基于所计算的差来测量对象的状态的改变。

公开(公告)号：US08208186B2

公开(公告)日：2012-06-26

申请号：US12415333

申请日：2009-03-31

申请人： Shin Yasuda ,  Katsunori Kawano

发明人： Shin Yasuda ,  Katsunori Kawano

IPC分类号： G03H1/22

CPC分类号： G03H1/22 ,  G03H1/2286 ,  G03H2001/2276 ,  G03H2222/31 ,  G03H2225/36 ,  G11B7/0065 ,  G11B7/1365

摘要： An optical reproducing method. A diffracted light is generated by irradiating a reference light onto a hologram. A combined light is generated by applying a direct-current component formed by a polarized light having a third polarization component with a first polarization plane having a polarization direction orthogonal to the diffracted light and having the same phase as the diffracted light, and a fourth polarization component with a second polarization plane having an opposite phase to the diffracted light, onto the diffracted light. The combined light is separated into a fifth polarization component including a first polarization component and the third polarization component, and a sixth polarization component including a second polarization component and the fourth polarization component. A first reproduced image is reproduced from the separated fifth polarization component, and a second reproduced image is reproduced from the separated sixth polarization component.

摘要翻译： 光学再现方法。 衍射光通过将参考光照射到全息图上而产生。 通过施加由具有第三偏振分量的偏振光形成的直流分量与具有与衍射光正交的偏振方向并具有与衍射光相同的相位的第一偏振面产生组合光，并且第四偏振 具有与衍射光具有相反相位的第二偏振面的衍射光。 将组合的光分离成包括第一偏振分量和第三偏振分量的第五偏振分量，以及包括第二偏振分量和第四偏振分量的第六偏振分量。 从分离的第五偏振分量再现第一再现图像，并且从分离的第六偏振分量再现第二再现图像。

公开(公告)号：US07800801B2

公开(公告)日：2010-09-21

申请号：US11348488

申请日：2006-02-07

申请人： Shin Yasuda ,  Jiro Minabe ,  Katsunori Kawano ,  Yasuhiro Ogasawara ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Koichi Haga ,  Makoto Furuki

发明人： Shin Yasuda ,  Jiro Minabe ,  Katsunori Kawano ,  Yasuhiro Ogasawara ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Koichi Haga ,  Makoto Furuki

IPC分类号： G06K9/36 ,  G06H1/00

CPC分类号： G11B7/0065 ,  G11B7/00781 ,  G11B20/10 ,  G11B2220/2504

摘要： A two-dimensional coding method includes: using a two-dimensional image containing plural reference pixels each having a different brightness and data pixels representing data in accordance with brightness; and coding a binary sequence of plural bits to be recorded as a hologram by matching the brightness level of the data pixel based on the brightnesses of the plural reference pixels.

摘要翻译： 二维编码方法包括：使用包含具有不同亮度的多个参考像素的二维图像和根据亮度表示数据的数据像素; 并且通过基于多个参考像素的亮度来匹配数据像素的亮度级，来编码要记录为全息图的多个比特的二进制序列。

公开(公告)号：US07782732B2

公开(公告)日：2010-08-24

申请号：US11604342

申请日：2006-11-27

申请人： Jiro Minabe ,  Yasuhiro Ogasawara ,  Katsunori Kawano ,  Koichi Haga ,  Shin Yasuda ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Makoto Furuki

发明人： Jiro Minabe ,  Yasuhiro Ogasawara ,  Katsunori Kawano ,  Koichi Haga ,  Shin Yasuda ,  Kazuhiro Hayashi ,  Hisae Yoshizawa ,  Makoto Furuki

IPC分类号： G11B7/0065

CPC分类号： G11B7/0065 ,  G03H2001/0413 ,  G03H2225/52 ,  G03H2240/21 ,  G03H2240/24 ,  G03H2260/12 ,  G11B7/1372 ,  G11B7/24044 ,  G11B7/245

摘要： An optical recording method includes providing an optical recording medium capable of forming both a refractive index grating and an absorption grating by light irradiation; Fourier transforming with the same lens a signal beam that represents binary digital data with a brightness image and a reference beam such that they are focused at a point outside the optical recording medium; irradiating the Fourier transformed signal beam and reference beam simultaneously onto the optical recording medium and forming a diffraction grating at the optical recording medium according to an interference fringe between the signal beam and the reference beam, or according to an interference fringe within the signal beam itself; and recording the signal beam as a hologram.

摘要翻译： 光学记录方法包括提供能够通过光照射形成折射率光栅和吸收光栅的光学记录介质; 用相同的透镜傅里叶变换表示具有亮度图像和参考光束的二进制数字数据的信号束，使得它们聚焦在光学记录介质外部的点处; 将傅里叶变换的信号光束和参考光束同时照射到光学记录介质上，并根据信号光束和参考光束之间的干涉条纹，或根据信号光束本身内的干涉条纹在光学记录介质上形成衍射光栅 ; 并将信号光束记录为全息图。

公开(公告)号：US20100069727A1

公开(公告)日：2010-03-18

申请号：US12421000

申请日：2009-04-09

申请人： Katsunori Kawano ,  Yoshio Nishihara ,  Yasuaki Kuwata

发明人： Katsunori Kawano ,  Yoshio Nishihara ,  Yasuaki Kuwata

IPC分类号： A61B5/1455 ,  G01B9/02

CPC分类号： A61B5/0261 ,  A61B2562/028

摘要： Provided is a measuring apparatus including: a driving unit that outputs first and second driving signals each having an opposite phase; a first semiconductor laser device, driven by the first driving signal, that emits a first laser beam to an object to be measured; a second semiconductor laser device, disposed near the first device and driven by the second driving signal, that emits a second laser beam to the object; a first detection unit that detects a first electrical signal that corresponds to the intensity of the first laser beam modulated due to the self-coupling effect; a second detection unit that detects a second electrical signal that corresponds to the intensity of the second laser beam modulated due to the self-coupling effect; a calculation unit that calculates differences between the first and second electrical signals; and a measuring unit that measures a state change of the object from the difference.

摘要翻译： 提供了一种测量装置，包括：驱动单元，其输出具有相反相位的第一和第二驱动信号; 由第一驱动信号驱动的第一半导体激光器件，其向待测对象发射第一激光束; 第二半导体激光装置，设置在第一装置附近并由第二驱动信号驱动，向该物体发射第二激光束; 第一检测单元，其检测与由于自耦合效应而调制的第一激光束的强度相对应的第一电信号; 第二检测单元，其检测与由于自耦合效应而调制的第二激光束的强度相对应的第二电信号; 计算单元，其计算第一和第二电信号之间的差异; 以及测量单元，其从所述差值测量所述物体的状态变化。

公开(公告)号：US07582392B2

公开(公告)日：2009-09-01

申请号：US11546958

申请日：2006-10-13

申请人： Hisae Yoshizawa ,  Jiro Minabe ,  Yasuhiro Ogasawara ,  Katsunori Kawano ,  Kazuhiro Hayashi ,  Shin Yasuda ,  Koichi Haga

发明人： Hisae Yoshizawa ,  Jiro Minabe ,  Yasuhiro Ogasawara ,  Katsunori Kawano ,  Kazuhiro Hayashi ,  Shin Yasuda ,  Koichi Haga

IPC分类号： G03H1/02

CPC分类号： G03H1/02 ,  G03H1/26 ,  G03H2001/026 ,  G03H2001/0264 ,  G03H2001/267 ,  G03H2222/31 ,  G03H2240/26 ,  G03H2260/12 ,  G11B7/0065 ,  G11B7/2467 ,  G11B7/25

摘要： A hologram-recording material, including a photoresponsive molecule, a reactive molecule having an intrinsic birefringence, and a photopolymerization initiator that accelerates polymerization and/or crosslinking of the reactive molecule having an intrinsic birefringence, a content of the photopolymerization initiator being in a range of less than about 0.1 wt % relative to the hologram-recording material, and, a content of the reactive molecule having an intrinsic birefringence being in a range of about 30 to about 80 wt % relative to the hologram-recording material.

摘要翻译： 包括光响应分子，具有固有双折射的反应性分子和加速具有固有双折射的反应性分子的聚合和/或交联的光聚合引发剂的全息记录材料，光聚合引发剂的含量在 相对于全息记录材料小于约0.1重量％，并且相对于全息记录材料，具有约30至约80重量％的固有双折射的反应性分子的含量。

公开(公告)号：US07535609B2

公开(公告)日：2009-05-19

申请号：US11339700

申请日：2006-01-26

申请人： Shin Yasuda ,  Katsunori Kawano ,  Koichi Haga ,  Jiro Minabe ,  Makoto Furuki ,  Yasuhiro Ogasawara ,  Kazuhiro Hayashi ,  Hisae Yoshizawa

发明人： Shin Yasuda ,  Katsunori Kawano ,  Koichi Haga ,  Jiro Minabe ,  Makoto Furuki ,  Yasuhiro Ogasawara ,  Kazuhiro Hayashi ,  Hisae Yoshizawa

IPC分类号： G03H1/16 ,  G03H1/26 ,  G11B7/00

CPC分类号： G03H1/04 ,  G03H1/0404 ,  G03H1/12 ,  G03H2001/0415 ,  G11B7/0065 ,  G11B7/083

摘要： A hologram recording method comprising recording information of signal light as a reflection-type hologram on an optical recording medium, by illuminating the signal light and reference light on a same axis and from different sides of the optical recording medium is provided. Further, a hologram recording device including: a signal light illuminating section illuminating signal light onto an optical recording medium; and a reference light illuminating section illuminating reference light of a same axis as the signal light, onto the optical recording medium from a different side than the signal light is provided.

摘要翻译： 提供一种全息图记录方法，其包括将信号光作为反射型全息图的信息记录在光学记录介质上，通过照射来自光学记录介质的相同轴线上的信号光和参考光。 此外，全息图记录装置包括：将信号光照射到光学记录介质上的信号光照明部分; 并且提供从与信号光不同的一侧将与信号光同轴的参考光照射到光记录介质上的参考光照明部。

公开(公告)号：US20090003180A1

公开(公告)日：2009-01-01

申请号：US12024151

申请日：2008-02-01

申请人： Katsunori KAWANO ,  Makoto FURUKI ,  Jiro MINABE

发明人： Katsunori KAWANO ,  Makoto FURUKI ,  Jiro MINABE

IPC分类号： G11B7/00

CPC分类号： G11B7/1395 ,  G03H1/0404 ,  G03H1/12 ,  G03H2210/22 ,  G03H2223/13 ,  G11B7/0065 ,  G11B7/1362

摘要： A holographic recording apparatus is provided and includes: a signal light generation section that generates signal light modulated according to digital data; a reference light generation section that generates reference light modulated by means of a pixel pitch; a adding section that adds, in proximity to a light-convergence position where the signal light and the reference light come close to each other or overlap each other, a low-order component of the signal light obtained by Fourier transform and a high-order component of the reference light obtained by Fourier transform, the high-order component of the reference light having a spatial frequency region differing from that of the low-order component of the signal light; and an illumination optical system that irradiate an optical recording medium with the added signal and reference light.

摘要翻译： 提供一种全息记录装置，包括：信号光生成部，生成根据数字数据调制的信号光; 参考光生成部，其生成通过像素间距调制的参照光; 附加部分，其在信号光和参考光彼此靠近或彼此重叠的光会聚位置附近增加通过傅立叶变换和高阶获得的信号光的低阶分量 通过傅里叶变换获得的参考光的分量，具有与信号光的低阶分量不同的空间频率区域的参考光的高阶分量; 以及照射光学系统，其对添加的信号和参考光照射光学记录介质。