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1. 发明授权

US09773521B2 Information recording device and information recording method 有权
公开(公告)号：US09773521B2
公开(公告)日：2017-09-26
申请号：US15106879
申请日：2014-01-17
申请人： HITACHI, LTD.
发明人： Ryo Imai , Koichi Watanabe , Manabu Shiozawa
IPC分类号： G11B7/1372 , G11B7/128 , G11C13/04 , G11B7/0045 , G11B7/0065 , G11B7/127 , G11B7/007 , G11B7/00 , G11B7/0033
CPC分类号： G11B7/128 , G11B7/0033 , G11B7/0045 , G11B7/0065 , G11B7/00772 , G11B7/127 , G11B7/1372 , G11B2007/0009 , G11C13/04
摘要： In recording technologies for batch formation of a plurality of recording bits in a recording medium by forming a plurality of optical spots using an ultrashort pulse laser and a spatial optical modulator, the batch recordable bit number has an upper limit, resulting in restricted recording speed. The intensity of the optical spot is corrected to increase the batch recordable bit number for increasing the recording speed.

2. 发明申请

US20170263281A1 HOLOGRAPHIC CHARACTERIZATION AND PLAYBACK APPARATUS 有权
公开(公告)号：US20170263281A1
公开(公告)日：2017-09-14
申请号：US15456832
申请日：2017-03-13
申请人： GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
发明人： Euiheon CHUNG , Tae Joong EOM , Canghuei YANG , Mooseok JANG , Jihee RYU
IPC分类号： G11B7/1353 , G11B7/0065 , G11B7/1395 , G11B7/13 , G11B7/1362 , G11B7/1374 , G03H1/22 , G11B7/128
CPC分类号： G11B7/1353 , G01N21/01 , G01N21/17 , G01N21/47 , G03H1/041 , G03H1/0443 , G03H1/0465 , G03H1/2205 , G03H2001/0452 , G03H2001/2244 , G03H2222/31 , G03H2223/14 , G03H2223/17 , G03H2227/03 , G11B7/0065 , G11B7/0908 , G11B7/128 , G11B7/13 , G11B7/1362 , G11B7/1372 , G11B7/1374 , G11B7/1395
摘要： A holographic characterization and playback apparatus is provided, which includes a light source, an optical path-forming optical system for separating the light emitted from the light source into a probe light and a reference light of different polarizations, and combining optical paths of the probe light and the reference light.

3. 发明授权

US09666222B2 Optical information recording medium having first and second pit row of identical reflectance 有权
公开(公告)号：US09666222B2
公开(公告)日：2017-05-30
申请号：US15369916
申请日：2016-12-06
申请人： Sharp Kabushiki Kaisha , Memory-Tech Holdings Inc.
发明人： Takayuki Naka , Hirohisa Yamada , Masaki Yamamoto , Hideharu Tajima , Masahito Konishi
IPC分类号： G11B7/24 , G11B7/013 , G11B7/005 , G11B7/24085 , G11B7/24079 , G11B7/007
CPC分类号： G11B7/007 , G11B7/005 , G11B7/0052 , G11B7/00745 , G11B7/0079 , G11B7/013 , G11B7/1372 , G11B7/24 , G11B7/24065 , G11B7/24079 , G11B7/24085 , G11B7/243 , G11B2007/0133
摘要： In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.

4. 发明申请

US20140233116A1 Optical Element, Holding Structure Therefor, And Optical Device 有权
标题翻译：光学元件，保持结构及光学元件
公开(公告)号：US20140233116A1
公开(公告)日：2014-08-21
申请号：US14348860
申请日：2012-09-10
申请人： Shinichiro Hara , Toshiyuki Majima , Hiroshi Takagi , Akihiko Matsumoto
发明人： Shinichiro Hara , Toshiyuki Majima , Hiroshi Takagi , Akihiko Matsumoto
IPC分类号： G02B7/02
CPC分类号： G02B7/02 , B41J2/471 , G02B26/125 , G11B7/1372 , G11B7/1374 , H04N1/113
摘要： An optical element has a first surface, a second surface on the opposite side of the first surface, an optical surface, and a protruding part. The protruding part is held in a prescribed position by being in contact with a holding member. The protruding part comprises a first protruding part and a second protruding part, The first protruding part comprises a first contact part that is a convex circular arc shape on at least one longitudinal plane and partly comes into contact with the holding member. The second protruding part comprises a second contact part that is a convex circular arc shape on at least one longitudinal plane and partly comes into contact with the holding member. A circular arc constitutes the first contact part and a circular arc that constitutes the second contact part are present in at least one cross-section that passes through a contact point between the first contact part and the holding member as well as a contact point between the second contact part and the holding member, and the center of the circular arc that constitutes the first contact part is aligned with the center of the circular arc that constitutes the second protruding part.
摘要翻译：光学元件具有第一表面，在第一表面的相对侧上的第二表面，光学表面和突出部分。突起部通过与保持部件接触而保持在规定位置。突出部包括第一突出部和第二突出部。第一突出部包括在至少一个纵向平面上呈凸圆弧形状并且部分地与保持部件接触的第一接触部。第二突出部包括在至少一个纵向平面上是凸圆弧形状并且部分地与保持构件接触的第二接触部。圆弧构成第一接触部分，并且构成第二接触部分的圆弧存在于穿过第一接触部分和保持部件之间的接触点的至少一个横截面以及接触点之间的接触点第二接触部和保持构件，构成第一接触部的圆弧的中心与构成第二突出部的圆弧的中心对准。

5. 发明授权

US08259552B2 Optical pickup apparatus 失效
标题翻译：光拾取装置
公开(公告)号：US08259552B2
公开(公告)日：2012-09-04
申请号：US12957710
申请日：2010-12-01
申请人： Shigeharu Shirane
发明人： Shigeharu Shirane
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/131 , G11B7/1372 , G11B7/1376 , G11B7/13925 , G11B7/1395 , G11B2007/0006
摘要： An optical pickup apparatus comprising a first laser unit including a first laser light source and a second laser unit including second and third laser light sources, being respectively disposed on a reflection (transmitting) surface side and a transmitting (reflection) surface side of a first beam splitter, laser lights of the first, second, and third wavelengths being guided onto a common optical path through the first beam splitter and guided to the respective sorts of optical recording mediums, each of the laser lights being divided by a diffraction grating disposed on the common optical path into a main beam and sub-beams, a second beam splitter being disposed on the upstream side of the diffraction grating on a return path of each of the laser lights, the laser lights through the second beam splitter being branched from the common optical path and being received by a photodetector.
摘要翻译：一种光拾取装置，包括：第一激光单元，包括第一激光光源和包括第二和第三激光光源的第二激光单元，分别设置在第一和第二激光单元的反射（透射）表面侧和透射（反射）表面侧上分束器，第一，第二和第三波长的激光被引导到通过第一分束器的公共光路上，并被引导到各种各样的光学记录介质，每个激光被设置在将主光束和子光束的共用光路分成两部分，第二分束器设置在每个激光的返回路径上的衍射光栅的上游侧，通过第二分束器的激光从公共光路并由光电检测器接收。

6. 发明授权

US07715074B2 Holographic recording device 有权
标题翻译：全息记录装置
公开(公告)号：US07715074B2
公开(公告)日：2010-05-11
申请号：US12194804
申请日：2008-08-20
申请人： Hiroyasu Yoshikawa , Kouichi Tezuka , Kazushi Uno , Yasumasa Iwamura , Yuzuru Yamakage
发明人： Hiroyasu Yoshikawa , Kouichi Tezuka , Kazushi Uno , Yasumasa Iwamura , Yuzuru Yamakage
IPC分类号： G03H1/28
CPC分类号： G11B7/0065 , G03H1/16 , G03H1/26 , G11B7/1372
摘要： A holographic recorder can vary the optical distance between an object lens and a relay lens near the object lens. This arrangement allows defocus-multiplexing utilizing state variations in the laser beam when the beam reaches a storage medium.
摘要翻译：全息记录器可以改变物镜附近的物镜和中继透镜之间的光学距离。这种布置允许当光束到达存储介质时利用激光束中的状态变化进行散焦复用。

7. 发明授权

US07680015B2 Optical disk apparatus compatible with different types of mediums adapted for different wavelengths 失效
标题翻译：与适用于不同波长的不同类型介质兼容的光盘设备
公开(公告)号：US07680015B2
公开(公告)日：2010-03-16
申请号：US11905484
申请日：2007-10-01
申请人： Hiroshi Akiyama
发明人： Hiroshi Akiyama
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/123 , G11B7/126 , G11B7/1275 , G11B7/131 , G11B7/1356 , G11B7/1365 , G11B7/1367 , G11B7/1372 , G11B7/1376 , G11B7/1378 , G11B7/1395 , G11B7/1398 , G11B2007/0006 , G11B2007/13727
摘要： A polarizing beam splitter for separating an upstream beam from a downstream beam according to the polarization of an incident beam is provided between first and second light sources emitting laser beams at respective wavelength and an objective lens. A phase plate for providing a phase difference to a beam incident on the polarizing beam splitter is provided between the polarizing beam splitter and the light sources. A portion of the laser beam incident on the polarizing beam splitter is reflected by the polarizing beam splitter and caused to be incident on a photo-detecting unit, so as to prevent an unnecessary portion of the laser beam is incident on the photo-detecting unit. According to the invention, the laser beam is used efficiently and the cost of fabricating an optical disk apparatus is reduced by eliminating a need for a gain controlling circuit in the photo-detecting unit.
摘要翻译：在发射各波长的激光束和物镜的第一和第二光源之间设置有用于根据入射光束的偏振从上游光束分离上游光束的偏振分束器。在偏振分束器和光源之间设置有用于向入射到偏振分束器上的光束提供相位差的相位板。入射到偏振分束器上的激光束的一部分被偏振分束器反射并入射到光检测单元上，以防止激光束的不必要部分入射到光检测单元。根据本发明，激光束被有效地利用，并且通过消除对光检测单元中的增益控制电路的需要来降低制造光盘装置的成本。

8. 发明申请

US20090135391A1 METHOD OF FORMING A LOCALLY PERIODIC 3D STRUCTURE WITH LARGER-SCALE VARIATION IN PERIODIC PROPERTIES AND APPLICAITONS THEREOF 有权
标题翻译：在周期性特征中形成具有较大尺度变化的局部周期性3D结构的方法及其应用
公开(公告)号：US20090135391A1
公开(公告)日：2009-05-28
申请号：US12266869
申请日：2008-11-07
申请人： William J. Arora , George Barbastathis
发明人： William J. Arora , George Barbastathis
IPC分类号： G03B27/54 , G03F7/20
CPC分类号： G03F7/0005 , G02B5/1857 , G02B5/1871 , G02B6/30 , G02B27/0087 , G02B2006/1213 , G11B7/124 , G11B7/1372 , G11B7/22
摘要： An optical structure is provided. The optical structure includes a substrate structure. A photosensitive material layer is positioned on said substrate structure. The photosensitive material layer having uniform periodic geometry and a period length throughout associated with a 2D periodic pattern. The 2D periodic pattern includes a period length greater than the exposing light wavelength and spatial variation in the duty cycle of the features of a mask layer used in the formation of said 2D periodic pattern.
摘要翻译：提供了一种光学结构。光学结构包括基板结构。感光材料层位于所述基片结构上。感光材料层具有均匀的周期性几何形状和整个与2D周期性图案相关联的周期长度。 2D周期性图案包括大于曝光光波长的周期长度和用于形成所述2D周期图案的掩模层的特征的占空比的空间变化。

9. 发明申请

US20090075806A1 OPTICAL GLASS 有权
标题翻译：光学玻璃
公开(公告)号：US20090075806A1
公开(公告)日：2009-03-19
申请号：US12273574
申请日：2008-11-19
申请人： Kenji IMAKITA , Naoki Sugimoto
发明人： Kenji IMAKITA , Naoki Sugimoto
IPC分类号： C03C3/095 , C03C3/093 , C03C3/068 , C03C3/066
CPC分类号： C03C3/066 , C03C3/091 , C03C3/093 , C03C3/095 , G11B7/1372 , G11B7/22
摘要： The invention provides an optical glass which comprises, in terms of % by mass on the basis of oxides, 35-45% of SiO2, 12-20% of B2O3, 2-7% of Li2O, 0.1-10% of ZnO, 2-15% of Al2O3, 10-40% of BaO, 0-5% of K2O, 0-10% of Na2O, and 0-20% of Gd2O3, wherein SiO2+B2O3 is 47-58% and Li2O+Na2O+K2O is 5-14%.
摘要翻译：本发明提供一种光学玻璃，其以氧化物为基准的质量％计，SiO 2为35-45％，B 2 O 2为12〜20％，Li 2 O 2为2〜7％，ZnO为2〜10％ -15％的Al2O3，10-40％的BaO，0-5％的K2O，0-10％的Na2O和0-20％的Gd2O3，其中SiO2 + B2O3是47-58％，Li2O + Na2O + K2O 是5-14％。

10. 发明授权

US07498550B2 Optical pickup apparatus which records and/or reproduces information using different types of optical information recording mediums 失效
标题翻译：使用不同类型的光学信息记录介质记录和/或再现信息的光学拾取装置
公开(公告)号：US07498550B2
公开(公告)日：2009-03-03
申请号：US11713489
申请日：2007-03-01
申请人： Kiyono Ikenaka
发明人： Kiyono Ikenaka
IPC分类号： G02B7/04 , H01J3/14
CPC分类号： G11B7/1365 , G11B7/1275 , G11B7/1353 , G11B7/1372 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus for recording and/or reproducing information for an optical information recording medium, comprising a light converging optical system including a coupling lens and an objective lens, wherein a first diffraction structure is installed on the objective lens, and a second diffraction structure is arranged on the coupling lens, whereby spherical aberration caused by change of ambient temperature is reduced by giving a condition to reduce the number of areas formed in a ring-shaped of the diffractive structure.
摘要翻译：一种用于记录和/或再现用于光学信息记录介质的信息的光学拾取装置，包括具有耦合透镜和物镜的聚光光学系统，其中第一衍射结构安装在物镜上，第二衍射结构布置在耦合透镜上，由此通过给出减少在衍射结构的环形中形成的区域的数量的条件来减小由环境温度的变化引起的球面像差。

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