公开(公告)号：JP2011170969A

公开(公告)日：2011-09-01

申请号：JP2011126515

申请日：2011-06-06

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO ,  IWAMURA TAKASHI

IPC: G11B7/0045 ,  G11B7/24

Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording medium having increased recording capacity.
SOLUTION: The optical information recording medium has a recording layer that includes a track in which recording marks are arranged in a line. The recording marks are formed in a part where heat reaction occurs by irradiation with a predetermined recording beam in a range where two-photon absorption reaction is generated, and the width of the track direction in which the track is extended in a reference mark length is made smaller than the widths in two directions vertical to the track direction.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供具有增加的记录容量的光学信息记录介质。 解决方案：光学信息记录介质具有记录层，该记录层包括其中记录标记排列成一行的轨道。 记录标记是在产生双光子吸收反应的范围内通过用预定的记录光束照射而发生热反应的部分形成的，并且轨道以参考标记长度延伸的轨道方向的宽度为 使其小于垂直于轨道方向的两个方向上的宽度。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010033679A

公开(公告)日：2010-02-12

申请号：JP2008197029

申请日：2008-07-30

Applicant: Sony Corp ,  ソニー株式会社

Inventor： FUJITA GORO ,  IWAMURA TAKASHI ,  SAITO KIMIHIRO

IPC: G11B7/125

CPC classification number: G11B7/126 ,  G11B7/00452 ,  G11B2007/0009

Abstract: PROBLEM TO BE SOLVED: To increase emitted light intensity of a semiconductor laser regarding an optical information recording device, an optical pickup, and a laser emission method. SOLUTION: An information optical beam LM that is a laser beam is emitted from a semiconductor laser, and converged to be irradiated to an optical disk as an optical information recording medium. In this case, the optical disk device supplies a pulse laser driving current wave DJw constituted of a vibration current value α for causing the semiconductor laser to generate soft vibrations to the semiconductor laser. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：为了增加关于光学信息记录装置，光学拾取器和激光发射方法的半导体激光器的发射光强度。 解决方案：作为激光束的信息光束LM从半导体激光器发射并会聚，照射到光盘作为光学信息记录介质。 在这种情况下，光盘装置提供由振动电流值α构成的脉冲激光驱动电流波DJw，以使半导体激光器向半导体激光器产生软振动。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009170013A

公开(公告)日：2009-07-30

申请号：JP2008004998

申请日：2008-01-11

Applicant: Sony Corp ,  ソニー株式会社

Inventor： IWAMURA TAKASHI ,  OYAMADA MITSUAKI ,  UEDA DAISUKE

IPC: G11B7/244 ,  G11B7/004

CPC classification number: G11B7/244 ,  B82Y10/00 ,  B82Y20/00 ,  G11B7/00452 ,  G11B7/241 ,  G11B7/246 ,  G11B7/251 ,  G11B7/2531

Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording method and an optical information recording medium that can improve a recording rate, and an information reproducing device, an optical information reproducing method and an optical information recording and reproducing device that can improve reproducing characteristics of the optical information recording medium. SOLUTION: A recording mark which is formed with a void is formed by evaporating two-photon absorption material by two-photon absorption reaction, which is one aspect of photoreaction with respect to a recording light beam as a recording light collected upon recording of information. Further, a recording layer reproduces the information based on a return light beam which is formed by modulating a read light beam which is radiated as a predetermined read light upon reproduction of the information according to the presence of the recording mark. The recording layer is formed by distributing two-photon absorption particles where the two-photon absorption material is disposed in metal fine particles MN, to a binder resin which forms the recording layer, thereby the two-photon absorption material having two-photon absorption characteristics as vaporizing material is arranged near the metal fine particles MN which are distributed in the binder resin. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供可以提高记录速率的光学信息记录方法和光学信息记录介质，以及可以改善的信息再现装置，光学信息再现方法和光学信息记录和再现装置 再现光信息记录介质的特性。 解决方案：通过双光子吸收反应蒸发双光子吸收材料形成一个形成有空隙的记录标记，双光子吸收反应是作为在记录时收集的记录光的相对于记录光束的光反应的一个方面 的信息。 此外，记录层基于通过根据记录标记的存在再现信息而调制作为预定读取光照射的读取光束而形成的返回光束再现信息。 记录层通过将双光子吸收材料分布在金属细颗粒MN中的双光子吸收颗粒分布到形成记录层的粘合剂树脂上形成，从而双光子吸收材料具有双光子吸收特性 因为气化材料布置在分布在粘合剂树脂中的金属微粒MN附近。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008097723A

公开(公告)日：2008-04-24

申请号：JP2006278911

申请日：2006-10-12

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HORIGOME TOSHIHIRO ,  SAITO KIMIHIRO ,  KOBAYASHI SEIJI ,  IWAMURA TAKASHI ,  TAMADA SAKUYA

IPC: G11B7/095 ,  G11B7/0065 ,  G11B7/135 ,  G11B7/24 ,  G11B7/244

Abstract: PROBLEM TO BE SOLVED: To perform recording of information with high density to an optical disk and to perform stable tracking control. SOLUTION: A guide track Tg having a track interval twice as wide as a track interval Pr of a recording track Tr is provided on a reflection layer transmitting an information light beam Lb1 and reflecting a position controlling light beam Lr1 having a wavelength longer than that of the information light beam Lb1. Thereby, tracking control can be reliably performed by using the position controlling light beam Lr1 having the wavelength longer than that of the information light beam Lb1 while the recording track Tr is set in an interval according to a spot diameter of the information light beam Lb1 to enhance recording density. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：将高密度信息记录到光盘并执行稳定的跟踪控制。 解决方案：在传输信息光束Lb1并反射具有波长更长的位置控制光束Lr1的反射层上设置具有记录轨道Tr的磁道间隔Pr的磁道间隔两倍宽度的导轨Tg 比信息光束Lb1的光束长。 因此，通过使用具有比信息光束Lb1的波长更长的波长的位置控制光束Lr1，同时根据信息光束Lb1的光点直径设定记录轨道Tr，将记录轨迹Tr设定为可靠地进行跟踪控制 提高记录密度。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008071433A

公开(公告)日：2008-03-27

申请号：JP2006249804

申请日：2006-09-14

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SAITO KIMIHIRO ,  HORIGOME TOSHIHIRO ,  KONDO TAKAO ,  HAYASHI KUNIHIKO ,  KOBAYASHI SEIJI ,  IWAMURA TAKASHI ,  TAMADA SAKUYA

IPC: G11B7/09 ,  G11B7/0065 ,  G11B7/125 ,  G11B7/24

CPC classification number: G11B7/0908 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/0938 ,  G11B7/24044

Abstract: PROBLEM TO BE SOLVED: To precisely record or reproduce a hologram showing information on an optical disk. SOLUTION: When recording information on an optical disk 100, this disk drive makes the focusing point Fr follow the desired track by controlling the position of the objective lens OL1 based on the result of detecting the reflected red light beam Lr2, and moves the focusing point Fb1 of the blue light beam Lb1 to the desired mark position by the objective lens OL1. Further, it moves the focusing point Fb2 to the desired mark position by controlling the objective lens OL2 based on the result of detecting the blue light beam Lb1 through the objective lenses OL1 and OL2. Since the focusing point Fb1 of the blue light beam Lb1 and the focusing point Fb2 of the blue light beam Lb2 can be moved to the same mark position to interfere with each other, it can record the recording mark RM on the desired mark position. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：精确地记录或再现在光盘上显示信息的全息图。 解决方案：当在光盘100上记录信息时，通过基于检测反射红光束Lr2的结果控制物镜OL1的位置，该盘驱动器使聚焦点Fr跟随期望的轨迹，并且移动 蓝色光束Lb1的聚焦点Fb1由物镜OL1到期望的标记位置。 此外，通过基于通过物镜OL1和OL2检测蓝色光束Lb1的结果，通过控制物镜OL2将聚焦点Fb2移动到期望的标记位置。 由于蓝色光束Lb1的蓝色光束Lb1的聚焦点Fb1和蓝色光束Lb2的聚焦点Fb2可以移动到相同的标记位置以相互干扰，所以可以将记录标记RM记录在所需的标记位置。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2003303442A

公开(公告)日：2003-10-24

申请号：JP2002105479

申请日：2002-04-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： IWAMURA TAKASHI ,  SATOBI YUUICHI ,  OYAMADA MITSUAKI ,  TAMURA SHINICHIRO ,  TAMADA SAKUYA

IPC: G11B7/24

Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium having a structure and the material characteristics of a recording layer suitable for a DRAW tape optical recording medium corresponding to the laser beams of the wavelength area of a shorter wavelength, 360 nm to 450 nm for instance, capable of increasing a recording density. SOLUTION: For the optical recording medium 10, the recording layer 12 is formed on a supporting body 11, the recording layer 12 is irradiated with the laser beam L for recording/reproducing information to/from the opposite side of the supporting body 11 and the information is recorded/reproduced to/ from the recording layer 12 by a reflected light intensity modulation system. For the refractive index n0 and absorption coefficient k0 before recording of the recording layer 12, the refractive index n1 and the absorption coefficient k1 after recording, Δn=n1-n0, Δk=k1-k0 and the film thickness d of the recording layer 12, one of the conditions, which are (condition 1) n0≥2.25, k0≤0.35, Δn≤-0.25, -0.15≤Δk≤0 and 30≤d≤45 nm, (condition 2) n0≤1.2, k0≤0.35, |Δk|>0.15, -0.15≤Δk≤0 and d≥55 nm, and (condition 3) 1.3≤n0≤1.8, |Δk|>0.6, |Δn| COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种光记录介质，其具有适用于对应于较短波长的波长区域的激光束的DRAW带光记录介质的结构和材料特性，360nm至 例如450nm，能够提高记录密度。 解决方案：对于光学记录介质10，记录层12形成在支撑体11上，记录层12被照射用于向/从支撑体的相对侧记录/再现信息的激光束L 信息通过反射光强调制系统被记录/从记录层12再现。 对于记录层12记录前的折射率n0和吸收系数k0，记录后的折射率n1和吸收系数k1，Δn= n1-n0，Δk= k1-k0和记录层12的膜厚d （条件1）n0≥2.25，k0≤0.35，Δn≤-0.25，-0.15≤Δk≤0和30≤d≤45nm的条件之一（条件2）n0≤1.2，k0≤0.35 ，|Δk|> 0.15，-0.15≤Δk≤0和d≥55nm，（条件3）1.3≤n0≤1.8，|Δk|> 0.6，|Δn| <0.3，1.3

公开(公告)号：JP2003217170A

公开(公告)日：2003-07-31

申请号：JP2002014660

申请日：2002-01-23

Applicant: SONY CORP

Inventor： IWAMURA TAKASHI ,  SATOBI YUUICHI

IPC: G11B7/0037 ,  G11B7/004 ,  G11B7/26 ,  G11B23/00 ,  G11B23/28 ,  G11B7/24

Abstract: PROBLEM TO BE SOLVED: To protect digital contents by preventing illegal copy or the like. SOLUTION: This invention provides a CD 10 that can be reproduced by an ordinary audio CD player but cannot be read by high-speed reproduction of a CD-ROM drive attached to a computer. A clamp hole 14 is formed deviated from the center position of a disk base 12 to its outer diameter to form the gravity center of the disk base by a prescribed amount from the rotating center by moving the clamp hole. Further, a paint 16 as a deviation weight is coated on a label side of the CD 10. Since the gravity center of the CD 10 is deviated from the rotation center, the stability of rotation can be maintained at a low speed rotation without being affected by the deviation, but the stability of rotation cannot be maintained at a high speed rotation so as to disable the reproduction, then illegal copying or the like can be prevented and digital contents can be protected. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003217131A

公开(公告)日：2003-07-31

申请号：JP2002014452

申请日：2002-01-23

Applicant: SONY CORP

Inventor： SATOBI YUUICHI ,  IWAMURA TAKASHI

IPC: G06F12/14 ,  G11B7/00 ,  G11B7/005 ,  G11B7/007 ,  G11B20/00 ,  G11B7/24

Abstract: PROBLEM TO BE SOLVED: To prevent illegal copying or the like by limiting reproduction by a disk drive belonging to a computer without any drastic changes in specifications of recorded information on a disk optical medium conventionally processed by a dedicated player. SOLUTION: A reading limitation area constituted of a deformation pit string including special wobbling or shifting of the pit string of an information track is provided. In this reading limitation area, during the low-speed rotation of a disk optical medium, the following-up of an optical pickup is enabled by tracking control, and proper reproducing is carried out. During the high-speed rotation of the disk optical medium, the following-up of the optical pickup by tracking control is disabled, and reproduction is not carried out. Thus, high- speed reproduction by a disk drive belonging to a computer is limited, and illegal use of a digital content is prevented. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2000339768A

公开(公告)日：2000-12-08

申请号：JP14398699

申请日：1999-05-24

Applicant: SONY CORP

Inventor： OYAMADA MITSUAKI ,  IWAMURA TAKASHI ,  TAMURA SHINICHIRO

IPC: G11B7/24 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To make it possible to combine two functions of a reproduction exclusive type and a DRAW type. SOLUTION: This optical disk 1 is provided with a first information recording body 3 having a first transparent substrate 7 on which pits in accordance with information are formed on one surface thereof and a translucent layer 9 which is formed on the first substrate, and a second information recording body 5 having a second substrate 10 on which grooves are formed on one surface, a light reflecting layer 12 which is formed on the second substrate and a recording layer 13 which consists of light absorbing material. Therein, the first information recording body and the second information recording body are bonded through an optically transparent adhesive layer 6 and a laser beam is made incident from the side of the first substrate and, thereby, the recording and reproducing is optically performed.

公开(公告)号：JPH07320300A

公开(公告)日：1995-12-08

申请号：JP11278194

申请日：1994-05-26

Applicant: SONY CORP

Inventor： ASAI NOBUTOSHI ,  KIJIMA YASUNORI ,  IWAMURA TAKASHI ,  TAMURA SHINICHIRO

IPC: G11B7/24

Abstract: PURPOSE:To make it possible to house a recording information quantity of about four-times the present recording information quantity without subjecting the device side to drastic changes, such as shortening of the wavelength of reproducing light, increasing of the numerical aperture NA of a focusing lens and changing of a signal demodulation system. CONSTITUTION:A saturable absorption dyestuff-contg. layer 3 consisting of saturable absorption dye and polymer material is formed on a transparent substrate 1 formed out of the recording patterns in which pits 5 are formed with recording patterns corresponding to information signals. The dye which is 10