公开(公告)号：US20030155489A1

公开(公告)日：2003-08-21

申请号：US10233438

申请日：2002-09-04

申请人： FUJI XEROX CO., LTD.

发明人： Shin Yasuda ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Masaaki Shimizu

IPC分类号： G01D005/34 ,  G02F001/01

CPC分类号： G01D5/34715

摘要： Laser light output from a laser light source is irradiated onto a transmission-type scale. Due to movement of the transmission-type scale, a polarization angle of transmitted light varies in accordance with variations in orientations of half-wave plates arrayed in a longitudinal direction. It is difficult for the polarization angle to be affected by noise factors such as external light or the like. Light intensity of a polarized light component, which is transmitted through an analyzer and detected at a photo-detector, varies in accordance with the polarization angle. Thus, the light intensity varies as the transmission-type scale moves, and a detection signal is output to a movement amount computing device. When an amount of movement is computed on the basis of the signal, the exact amount of movement can be detected.

摘要翻译： 从激光光源输出的激光照射到透射型标尺上。 由于透射型刻度的移动，透射光的偏振角根据沿纵向方向排列的半波片的取向的变化而变化。 偏振角难以受到诸如外部光等的噪声因素的影响。 通过分析仪透射并在光检测器处检测的偏振光分量的光强度根据偏振角而变化。 因此，光强度随着透射型标尺移动而变化，并且检测信号被输出到移动量计算装置。 当基于该信号计算移动量时，可以检测精确的移动量。

公开(公告)号：US20020163873A1

公开(公告)日：2002-11-07

申请号：US10011710

申请日：2001-12-11

申请人： FUJI XEROX CO., LTD.

发明人： Katsunori Kawano ,  Jiro Minabe ,  Masaaki Shimizu ,  Tatsuya Maruyama ,  Shin Yasuda

IPC分类号： G11B007/135 ,  G11B007/24

CPC分类号： G11B7/128 ,  G11B7/0065 ,  G11B7/24 ,  G11B7/25

摘要： A holographic recording and/or retrieval method and apparatus are provided. An optical recording medium is used which has a recording layer, formed on a surface of a transparent substrate, through which light having an incident angle of a predetermined value or more with respect to the surface is guided, and which changes a refractive index or absorption coefficient upon simultaneous irradiation of signal light of a predetermined wavelength and reference light, and can record holograms by holding the changed refractive index or absorption coefficient. During recording, a hologram is recorded by simultaneously irradiating the recording layer with signal light of predetermined wavelength and reference light. During retrieval, reading light of wavelength that does not change a refractive index or absorption coefficient of the recording layer is guided through the recording layer, and a hologram is retrieved by diffracted light produced when the reading light is guided through the recording layer.

摘要翻译： 提供全息记录和/或检索方法和装置。 使用具有记录层的光学记录介质，该记录层形成在透明基板的表面上，通过该记录层具有相对于表面的预定值或更大的入射角的光，并且其改变折射率或吸收 同时照射预定波长的信号光和参考光，并且可以通过保持改变的折射率或吸收系数来记录全息图。 在记录期间，通过用预定波长的信号光和参考光同时照射记录层来记录全息图。 在检索期间，读取不改变记录层的折射率或吸收系数的波长的光被引导通过记录层，并且当读取光被引导通过记录层时产生的衍射光引起全息图。

公开(公告)号：US20040240012A1

公开(公告)日：2004-12-02

申请号：US10808372

申请日：2004-03-25

申请人： FUJI XEROX CO., LTD.

发明人： Shin Yasuda ,  Jiro Minabe ,  Katsunori Kawano ,  Tatsuya Maruyama ,  Norie Matsui

IPC分类号： G03H001/04 ,  G11B007/00

CPC分类号： G03H1/2645 ,  G03H1/0248 ,  G03H1/16 ,  G03H1/26 ,  G03H1/265 ,  G03H2001/266 ,  G11B7/0065 ,  G11B7/245

摘要： Quality of a reproduced light beam is improved, and rewriting and recording are performed at high speed without erasing data. Each page of a hologram is newly recorded so that the maximum point of diffraction light beam intensity in reproducing the newly recorded hologram is located at a position where diffraction light beam intensity from a data page of a hologram which has been previously recorded in a hologram recording medium is minimized at the time of reproducing the data.

摘要翻译： 再现光束的质量得到改善，并且在不擦除数据的情况下高速执行重写和记录。 新记录全息图的每一页，使得再现新记录的全息图中的最大衍射光束强度位于从先前记录在全息图记录中的全息图的数据页的衍射光束强度的位置 在再现数据时介质被最小化。

公开(公告)号：US20040190093A1

公开(公告)日：2004-09-30

申请号：US10657147

申请日：2003-09-09

申请人： FUJI XEROX CO., LTD.

发明人： Norie Matsui ,  Katsunori Kawano ,  Jiro Minabe ,  Tatsuya Maruyama ,  Shin Yasuda ,  Kazuhiro Hama ,  Tsutomu Ishii

IPC分类号： G03H001/04 ,  G03H001/02

CPC分类号： G11B7/266 ,  G03H2001/0264 ,  G03H2001/2615 ,  G03H2260/12 ,  G11B7/245 ,  G11B2007/0009 ,  G11B2007/0013 ,  Y10S359/90

摘要： The present invention relates to a method for producing an optical recording medium. In the method, on the surface of a recording layer formed by spin-coating a first coating solution containing a photo-isomerizable component, a second coating solution that contains a photo-isomerizable component that can be isomerized by radiation having the same wavelength as radiation used for isomerizing the photo-isomerizable component contained in the recording layer and incapable of dissolving the recording layer is spin-coated to form an intermediate layer. Since the intermediate layer thus formed cannot be dissolved by the first coating solution, a recording layer is further laminated on this layer. Thus, it becomes possible to make the recording layer thicker and also to provide a high-density recording characteristic.

摘要翻译： 本发明涉及一种光记录介质的制造方法。 在该方法中，在通过旋涂含有光可异构化组分的第一涂布溶液形成的记录层的表面上，含有可通过与辐射相同波长的辐射异构化的光可异构化组分的第二涂层溶液 用于异构化包含在记录层中并且不能溶解记录层的光可异构化组分被旋涂以形成中间层。 由于如此形成的中间层不能被第一涂布溶液溶解，所以在该层上进一步层压记录层。 因此，可以使记录层更厚并且还提供高密度记录特性。

公开(公告)号：US20040191684A1

公开(公告)日：2004-09-30

申请号：US10805355

申请日：2004-03-22

申请人： FUJI XEROX CO., LTD.

发明人： Tatsuya Maruyama ,  Katsunori Kawano ,  Jiro Minabe ,  Shin Yasuda ,  Norie Matsui ,  Tsutomu Ishii ,  Kazuhiro Hama

IPC分类号： G11B005/58

CPC分类号： G11B7/245

摘要： An optical recording medium including a recording layer which is formed into a predetermined shape with a thickness of 0.1 mm to 5 mm and which contains a polyester represented by the following formula (1). 1

摘要翻译： 一种光记录介质，包括形成厚度为0.1mm至5mm的预定形状的记录层，并含有由下式（1）表示的聚酯。

公开(公告)号：US20030141441A1

公开(公告)日：2003-07-31

申请号：US10229040

申请日：2002-08-28

申请人： Fuji Xerox Co., Ltd.

发明人： Katsunori Kawano ,  Tatsuya Maruyama ,  Jiro Minabe ,  Shin Yasuda

IPC分类号： G01D005/34 ,  G02F001/01

CPC分类号： G01D5/38

摘要： Laser light emitted from a laser light source is irradiated onto a transmission-type scale, and is diffracted by a polarization hologram recorded on the transmission-type scale. Only polarization directions of null1-order diffracted lights, among diffracted lights, are rotated by 90null. The null1-order diffracted lights interfere with one another such that interference fringes are formed on a light-receiving surface of a photo-detector. Interference light of the null1-order diffracted lights is transmitted through a polarizing plate. A portion of transmitted light is passed through respective slits of a slit plate and is irradiated onto the photo-detector, and intensity of irradiated light is detected. On the other hand, 0-order diffracted light, null2-order diffracted lights, and the like, whose polarization directions are not rotated, cannot pass through the polarizing plate, and are blocked before being detected at the photo-detector.

摘要翻译： 从激光光源发射的激光照射到透射型标尺上，并被记录在透射型标尺上的偏振全息图衍射。 衍射光中只有±1级衍射光的偏振方向旋转90°。 ±1级衍射光彼此干涉，使得干涉条纹形成在光检测器的光接收表面上。 ±1级衍射光的干涉光透过偏光板。 透射光的一部分通过狭缝板的相应狭缝并照射到光检测器上，并且检测照射光的强度。 另一方面，偏振方向不旋转的0级衍射光，±2级衍射光等不能通过偏振片，并且在光检测器被检测之前被阻挡。

公开(公告)号：US20040190095A1

公开(公告)日：2004-09-30

申请号：US10659389

申请日：2003-09-11

申请人： FUJI XEROX CO., LTD.

发明人： Jiro Minabe ,  Katsunori Kawano ,  Tatsuya Maruyama ,  Shin Yasuda ,  Norie Matsui ,  Tsutomu Ishii ,  Kazuhiro Hama

IPC分类号： G03H001/16 ,  G03H001/04

CPC分类号： G11B7/245 ,  G03H1/26 ,  G11B7/0037 ,  G11B7/0065 ,  G11B7/24079 ,  G11B7/2467 ,  G11B7/25 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2535 ,  G11B7/2575 ,  G11B7/2578 ,  G11B2007/0009 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25718

摘要： In a recording layer, a recording track is provided in the form of concentric circles or a spiral along a moving direction of a recording spot. When only specific Fourier transform components in a Fourier transform image of signal light are recorded, a width of the recording track provided in the recording layer is set corresponding to a diffraction order of the Fourier transform component to be recorded. That is to say, according to the diffraction order of the Fourier transform component to be recorded, the width of the recording track is determined within the range satisfying the following relationship. Here w is the width of the recording track, d is a length of one side of one-bit data of the signal light, null is a wavelength of the signal light, F is a focal distance of a lens system, and n is an integer of 2, 3, or 4. 1 null null null null F d null w null n null null null null null null null F d

摘要翻译： 在记录层中，沿着记录点的移动方向以同心圆或螺旋的形式提供记录轨道。 当仅记录信号光的傅里叶变换图像中的特定傅里叶变换分量时，设置在记录层中的记录轨道的宽度对应于要记录的傅立叶变换分量的衍射级。 也就是说，根据要记录的傅里叶变换分量的衍射级，在满足以下关系的范围内确定记录轨道的宽度。 这里w是记录磁道的宽度，d是信号光的1位数据的一侧的长度，λ是信号光的波长，F是透镜系统的焦距，n是透镜系统的焦距 2，3或4.的整数。 1