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公开(公告)号：DE10015953A1
公开(公告)日：2000-10-26
申请号：DE10015953
申请日：2000-03-30
Applicant: SONY CORP
Inventor： YAMAMOTO KENJI , MAEDA FUMISADA , OSATO KIYOSHI
Abstract: The lens holder is for lenses (2,3) which are arranged on an optical axis of an optical measuring head which is constructed for the recording and/or reproduction of data. The holder has several reference surfaces (4a1,4b1) which in each case lie along the optical axes and the inclination of the lenses the lenses (2,3) for controlling the positions of the lenses to regulate the positions of the lenses along the optical axes and the inclination of the lenses. Independent claims are included for methods for producing a lens holder, and for a metal punch used for producing the lens holder.
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公开(公告)号：DE60141475D1
公开(公告)日：2010-04-15
申请号：DE60141475
申请日：2001-11-20
Applicant: SONY CORP
Inventor： ICHIMURA ISAO , OSATO KIYOSHI , NAKANO JUN , MASUHARA SHIN
IPC: G11B7/24 , G11B7/004 , G11B7/24079 , G11B7/007
Abstract: The present invention provides an optical recording medium and an optical disk device realizing prevention of crosswrite and uniformity of playback signals and capable of easily securing compatibility with a read only disk. It provides an optical recording medium on which light LB condensed by a lens (12, 14) having a numerical aperture of 0.85±0.1 and a wavelength of 405±5 nm is focused for recording or playback, having a substrate 1 formed with a groove 2 in its surface, an optical recording layer 3 formed on the substrate and having topography corresponding to the groove, and a light transmission type protection layer 4 formed on the optical recording layer; used when light for recording or playback is focused from the protection layer side to the optical recording layer; using as a recording area only the optical recording layer of one of a side far from the emitting side of the light for recording or playback, that is, a portion corresponding to a recessed portion of the topography, and a side close to it, that is, a portion corresponding to a projecting portion; having a track pitch of 0.32±0.01 µm; and having a depth D2 of a recessed portion with respect to a projecting portion in the range of 19 to 24 nm.
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公开(公告)号：AT459959T
公开(公告)日：2010-03-15
申请号：AT01983822
申请日：2001-11-20
Applicant: SONY CORP
Inventor： ICHIMURA ISAO , OSATO KIYOSHI , NAKANO JUN , MASUHARA SHIN
IPC: G11B7/007 , G11B7/24079 , G11B7/004
Abstract: The present invention provides an optical recording medium and an optical disk device realizing prevention of crosswrite and uniformity of playback signals and capable of easily securing compatibility with a read only disk. It provides an optical recording medium on which light LB condensed by a lens (12, 14) having a numerical aperture of 0.85±0.1 and a wavelength of 405±5 nm is focused for recording or playback, having a substrate 1 formed with a groove 2 in its surface, an optical recording layer 3 formed on the substrate and having topography corresponding to the groove, and a light transmission type protection layer 4 formed on the optical recording layer; used when light for recording or playback is focused from the protection layer side to the optical recording layer; using as a recording area only the optical recording layer of one of a side far from the emitting side of the light for recording or playback, that is, a portion corresponding to a recessed portion of the topography, and a side close to it, that is, a portion corresponding to a projecting portion; having a track pitch of 0.32±0.01 µm; and having a depth D2 of a recessed portion with respect to a projecting portion in the range of 19 to 24 nm.
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公开(公告)号：AU1522602A
公开(公告)日：2002-05-27
申请号：AU1522602
申请日：2001-11-20
Applicant: SONY CORP
Inventor： ICHIMURA ISAO , OSATO KIYOSHI , NAKANO JUN , MASUHARA SHIN
IPC: G11B7/24079 , G11B7/004 , G11B7/007 , G11B7/24
Abstract: The present invention provides an optical recording medium and an optical disk device realizing prevention of crosswrite and uniformity of playback signals and capable of easily securing compatibility with a read only disk. It provides an optical recording medium on which light LB condensed by a lens (12, 14) having a numerical aperture of 0.85±0.1 and a wavelength of 405±5 nm is focused for recording or playback, having a substrate 1 formed with a groove 2 in its surface, an optical recording layer 3 formed on the substrate and having topography corresponding to the groove, and a light transmission type protection layer 4 formed on the optical recording layer; used when light for recording or playback is focused from the protection layer side to the optical recording layer; using as a recording area only the optical recording layer of one of a side far from the emitting side of the light for recording or playback, that is, a portion corresponding to a recessed portion of the topography, and a side close to it, that is, a portion corresponding to a projecting portion; having a track pitch of 0.32±0.01 µm; and having a depth D2 of a recessed portion with respect to a projecting portion in the range of 19 to 24 nm.
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公开(公告)号：HK1054814A1
公开(公告)日：2003-12-12
申请号：HK03105408
申请日：2003-07-25
Applicant: SONY CORP
Inventor： ICHIMURA ISAO , OSATO KIYOSHI , NAKANOJUN , MASUHARA SHIN
IPC: G11B7/004 , G11B7/24079 , G11B7/007 , G11B
Abstract: The present invention provides an optical recording medium and an optical disk device realizing prevention of crosswrite and uniformity of playback signals and capable of easily securing compatibility with a read only disk. It provides an optical recording medium on which light LB condensed by a lens (12, 14) having a numerical aperture of 0.85±0.1 and a wavelength of 405±5 nm is focused for recording or playback, having a substrate 1 formed with a groove 2 in its surface, an optical recording layer 3 formed on the substrate and having topography corresponding to the groove, and a light transmission type protection layer 4 formed on the optical recording layer; used when light for recording or playback is focused from the protection layer side to the optical recording layer; using as a recording area only the optical recording layer of one of a side far from the emitting side of the light for recording or playback, that is, a portion corresponding to a recessed portion of the topography, and a side close to it, that is, a portion corresponding to a projecting portion; having a track pitch of 0.32±0.01 µm; and having a depth D2 of a recessed portion with respect to a projecting portion in the range of 19 to 24 nm.
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Patent Agency Ranking
公开(公告)号：HK1046327A1
公开(公告)日：2003-01-03
申请号：HK02107475
申请日：2002-10-15
Applicant: SONY CORP
Inventor： YAMAMOTO KENJI , OSATO KIYOSHI , MAEDA FUMISADA
IPC: G02B7/02 , G02B7/08 , G02B13/00 , G11B7/09 , G11B7/125 , G11B7/135 , G11B7/1374 , G11B7/1378 , G11B , G02B
Abstract: An optical head has achromatic lenses which a blue or blue-violet laser beam from a laser diode strikes, object lenses for condensing the laser beam passing through the achromatic lenses on an optical disc, lens holders and for holding the achromatic lenses and the object lenses so that their optical axes coincide, and actuators and for moving the lens holders in the focus direction and/or tracking direction of the optical disc. The lens holders are fixed to each other and the lenses are moved as one part by the actuators.
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公开(公告)号：CA2396246A1
公开(公告)日：2002-05-23
申请号：CA2396246
申请日：2001-11-20
Applicant: SONY CORP
Inventor： ICHIMURA ISAO , OSATO KIYOSHI , MASUHARA SHIN , NAKANO JUN
IPC: G11B7/24079 , G11B7/004 , G11B7/007 , G11B7/24
Abstract: An optical recording medium and an optical disk device for realizing the prevention of cross-write and the homogenization of a reproduced signal, and easily ensuring compatibility with a reproduction-only disk. An optical recording medium comprising a substrate (1) formed with grooves (2) in the surface thereof, an optical recording layer (3) formed on the substrate and having an uneven shape matching the grooves, and a light-transmitting protection film (4) formed on the optical recording layer, recording or reproducing to/from the substrate being made by being applied a light beam (LB) that is condensed by lenses (12, 14) having numerical apertures of 0.85 .plusmn. 0.1 and has a wavelength of 405 .plusmn. 5 nm, wherein a recording or reproducing light beam applied to the optical recording layer from a protection film side is used, either one of that portion, corresponding to a recess of the uneven shape distal from a recording or reproducing light applying side, of the optical recording layer and that portion, correspondin g to a protrusion proximal to the side, only is used as a recording area, a track pitch is 0.32 .plusmn. 0.01 .mu.m, and a protrusion-to-recess depth D2 ranges 19-24 nm.
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公开(公告)号：EP1589530A4
公开(公告)日：2008-03-19
申请号：EP04706838
申请日：2004-01-30
Applicant: TOPPAN PRINTING CO LTD , SONY CORP
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公开(公告)号：EP1341167A4
公开(公告)日：2007-01-17
申请号：EP01983822
申请日：2001-11-20
Applicant: SONY CORP
Inventor： ICHIMURA ISAO , OSATO KIYOSHI , NAKANO JUN , MASUHARA SHIN
IPC: G11B7/007
CPC classification number: G11B7/24 , G11B7/007 , G11B7/00718 , G11B7/24079 , G11B7/24082
Abstract: The present invention provides an optical recording medium and an optical disk device realizing prevention of crosswrite and uniformity of playback signals and capable of easily securing compatibility with a read only disk. It provides an optical recording medium on which light LB condensed by a lens (12, 14) having a numerical aperture of 0.85±0.1 and a wavelength of 405±5 nm is focused for recording or playback, having a substrate 1 formed with a groove 2 in its surface, an optical recording layer 3 formed on the substrate and having topography corresponding to the groove, and a light transmission type protection layer 4 formed on the optical recording layer; used when light for recording or playback is focused from the protection layer side to the optical recording layer; using as a recording area only the optical recording layer of one of a side far from the emitting side of the light for recording or playback, that is, a portion corresponding to a recessed portion of the topography, and a side close to it, that is, a portion corresponding to a projecting portion; having a track pitch of 0.32±0.01 µm; and having a depth D2 of a recessed portion with respect to a projecting portion in the range of 19 to 24 nm.
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公开(公告)号：DE602004021903D1
公开(公告)日：2009-08-20
申请号：DE602004021903
申请日：2004-01-30
Applicant: SONY CORP , TOPPAN PRINTING CO LTD
Inventor： KINOSHITA TOSHIRO , KOBAYASHI AKIHIKO , SASAKI NOBORU , ARISAWA MAKOTO , IWASE HIROSHI , SEKIGUCHI MAMORU , OGAWA HIROSHI , YAMASAKI YOSHIMORI , OSATO KIYOSHI , YAMAMOTO MASANOBU , KASHIWAGI TOSHIYUKI
Abstract: An optical disk (10) of the present invention has a substrate (11) included a resin-impregnated paper, in which resin is impregnated into paper, or resin-coated paper, in which the paper surface is coated with a resin, and a recording layer (13) formed on at least one side of the substrate (11). This type of optical disk (10) has performance equal to that of conventional optical disks and has a minimal effect on the environment during disposal. In addition, a manufacturing method of an optical disk of the present invention has a recording layer sheet fabrication step in which a recording layer sheet is fabricated by forming tracks on a recording layer base material, and a recording layer sheet lamination step in which a recording layer (13) included the recording layer sheet is provided on a substrate (11) included resin-impregnated paper or resin-coated paper by laminating the recording layer sheet with the resin-impregnated paper in which a resin is impregnated into paper or the resin-coated paper in which the surface of the paper is coated with a resin. This type of manufacturing method of an optical disk allows optical disk (10) to be produced inexpensively.
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