Holographic recording medium, method for recording and reproducing the same, and reproducing apparatus
    32.
    发明授权
    Holographic recording medium, method for recording and reproducing the same, and reproducing apparatus 失效
    全息记录介质,其记录和再现方法以及再现装置

    公开(公告)号:US07672210B2

    公开(公告)日:2010-03-02

    申请号:US11587042

    申请日:2005-04-01

    IPC分类号: G11B7/00

    摘要: A holographic recording medium 10 is configured to have a recording layer 12 on which information can be recorded as holograms; and first and second heat generating layers 14A and 14B provided in a pair so as to sandwich the recording layer 12. Then, the first and second heat generating layers 14A and 14B are allowed to generate heat by being irradiated with a heat generating laser beam LB3 having a wavelength that is different from that of a signal beam LB1 or a reference beam LB2 for reproducing or recording information. The holographic recording medium and a method for recording and reproducing the same, and a recording and reproducing apparatus can compensate for shrinkage of the recording layer due to recording or variations in temperature, thereby allowing for reproduction of the holograms under optimum conditions.

    摘要翻译: 全息记录介质10被配置为具有其上可以记录信息作为全息图的记录层12; 并且一对设置成夹持记录层12的第一和第二发热层14A和14B。然后,通过用发热激光束LB3照射第一和第二发热层14A和14B来产生热量 具有与用于再现或记录信息的信号光束LB1或参考光束LB2不同的波长。 全息记录介质及其记录和再现方法,以及记录和再现装置可以补偿由于记录或温度变化引起的记录层的收缩,从而允许在最佳条件下再现全息图。

    Holographic multiplex recording method
    34.
    发明授权
    Holographic multiplex recording method 有权
    全息复用记录方法

    公开(公告)号:US07518972B2

    公开(公告)日:2009-04-14

    申请号:US10579823

    申请日:2004-11-04

    IPC分类号: G11B7/00

    摘要: A holographic multiplex recording method is provided in which remaining dynamic range in each recording area is made more uniform upon holographic multiplex recording. In this holographic recording method, a first-stage recording spot row RX1 is formed by arranging recording spots RS in an X-axis direction without overlapping, and then a second-stage recording spot row RX2 formed of the recording spots RS without overlapping in the X-axis direction is recorded in a position for shift multiplex recording in a Y-axis direction. This is repeated to form a Y-axis direction first multiplex recording spot matrix TYX1. In this case, recording is performed to all recordable regions without shift multiplex recording in the X-axis direction. Subsequently, a Y-axis direction second multiplex recording spot matrix TYX2 is formed in a position shift-multiplexed in the X-axis direction with respect to the first-stage recording spot row RX1 initially recorded. The shift multiplex recording in the X-axis direction is performed in a similar manner up to a Y-axis direction last multiplex recording spot matrix TYXn to thereby complete the recording.

    摘要翻译: 提供了一种全息多路复用记录方法,其中在全息多路复用记录时,使每个记录区域中的剩余动态范围更均匀。 在该全息记录方法中,通过在X轴方向上重叠记录点RS而形成第一级记录点列RX1,然后在记录点RS形成的第二级记录点列RX2 将X轴方向记录在Y轴方向的移动多路复用记录位置。 这被重复以形成Y轴方向的第一多路复用记录点矩阵TYX1。 在这种情况下,对X轴方向没有移位多路复用记录的所有可记录区域进行记录。 随后,相对于最初记录的第一级记录点列RX1在X轴方向上进行多位复用的位置上形成Y轴方向第二多路复用记录点矩阵TYX2。 以与Y轴方向最终多路复用记录点矩阵TYXn相同的方式进行X轴方向的移位复用记录,从而完成记录。

    Holographic recording medium
    35.
    发明授权
    Holographic recording medium 有权
    全息记录介质

    公开(公告)号:US07304774B2

    公开(公告)日:2007-12-04

    申请号:US10584130

    申请日:2004-12-20

    IPC分类号: G03H1/02

    摘要: A holographic recording medium 10 includes: a recording layer 12; two substrates 14 and 16 sandwiching the same; and a photosensitive protective layer 18 covering these recording layer 12 and substrates 14 and 16 entirely. The recording layer 12 is set so that its photosensitivity corresponding to a recording wavelength falls in the vicinity of the recording wavelength from shorter wavelengths to longer wavelengths. The photosensitive protective layer 18 is set so that its light transmittance corresponding to the recording wavelength falls in the vicinity of the recording wavelength from longer wavelengths to shorter wavelengths. This improves damage of the recording layer from ambient exposure without a drop in recording sensitivity.

    摘要翻译: 全息记录介质10包括:记录层12; 两个基板14和16夹持它们; 以及完全覆盖这些记录层12和基板14和16的光敏保护层18。 记录层12被设定为使得其对应于记录波长的光敏性从较短波长延伸到记录波长附近。 感光保护层18被设定为使得其对应于记录波长的光透射率从较长的波长到较短的波长落在记录波长附近。 这改善了记录层对环境曝光的损害,而不会降低记录灵敏度。

    Holographic Recording Method And Holographic Recording Apparatus
    36.
    发明申请
    Holographic Recording Method And Holographic Recording Apparatus 审中-公开
    全息记录方法和全息记录装置

    公开(公告)号:US20070195390A1

    公开(公告)日:2007-08-23

    申请号:US11578330

    申请日:2005-04-01

    IPC分类号: G02B5/32

    摘要: A holographic recording method and a holographic recording apparatus which can provide a shortened time for recording and an improved data rate during recording even when the recording material has a low photosensitivity or the light source has a low power. This is achieved by, before a minimum exposure time for forming a reproducible hologram is reached, completing an interference exposure using signal light and reference light to form an incomplete hologram; performing an independent exposure for irradiating the incomplete hologram with the reference light after the interference exposure to thereby produce diffracted light; and recording information by means of interference between the reference light and the diffracted light.

    摘要翻译: 一种全息记录方法和全息记录装置,即使在记录材料具有低光敏性或光源具有低功率的情况下,其可以提供缩短的记录时间和记录期间的改善的数据速率。 这是通过在用于形成可再现的全息图的最小曝光时间达到之前完成使用信号光和参考光的干涉曝光以形成不完全全息图来实现的; 在干涉曝光之后,用参考光进行独立曝光以照射不全息图,从而产生衍射光; 并通过参考光和衍射光之间的干涉记录信息。

    Holographic multiplex recording method
    38.
    发明申请
    Holographic multiplex recording method 有权
    全息复用记录方法

    公开(公告)号:US20070104068A1

    公开(公告)日:2007-05-10

    申请号:US10579823

    申请日:2004-11-04

    IPC分类号: G11B7/00

    摘要: A holographic multiplex recording method is provided in which remaining dynamic range in each recording area is made more uniform upon holographic multiplex recording. In this holographic recording method, a first-stage recording spot row RX1 is formed by arranging recording spots RS in an X-axis direction without overlapping, and then a second-stage recording spot row RX2 formed of the recording spots RS without overlapping in the X-axis direction is recorded in a position for shift multiplex recording in a Y-axis direction. This is repeated to form a Y-axis direction first multiplex recording spot matrix TYX1. In this case, recording is performed to all recordable regions without shift multiplex recording in the X-axis direction. Subsequently, a Y-axis direction second multiplex recording spot matrix TYX2 is formed in a position shift-multiplexed in the X-axis direction with respect to the first-stage recording spot row RX1 initially recorded. The shift multiplex recording in the X-axis direction is performed in a similar manner up to a Y-axis direction last multiplex recording spot matrix TYXn to thereby complete the recording.

    摘要翻译: 提供了一种全息多路复用记录方法,其中在全息多路复用记录时,使每个记录区域中的剩余动态范围更均匀。 在该全息记录方法中,通过在X轴方向上重叠记录点RS而形成第一级记录点列RX 1,然后将第二级记录点列RX 初始记录。 以与Y轴方向最终多路复用记录点矩阵TYX N类似的方式执行X轴方向上的移位多路复用记录,从而完成记录。

    Holographic recording method, holographic recording apparatus, holographic memory reproducing method, holographic memory reproducing apparatus, holographic recording and reproducing apparatus, and holographic recording medium
    39.
    发明申请
    Holographic recording method, holographic recording apparatus, holographic memory reproducing method, holographic memory reproducing apparatus, holographic recording and reproducing apparatus, and holographic recording medium 失效
    全息记录方法,全息记录装置,全息存储再现方法,全息记录再现装置,全息记录和再现装置以及全息记录介质

    公开(公告)号:US20070081206A1

    公开(公告)日:2007-04-12

    申请号:US10577650

    申请日:2004-10-27

    IPC分类号: G03H1/00

    摘要: The pitch of light beam spots on a light receiving surface of an address detector upon search of information recorded on a holographic recording medium is decreased to reduce a distance between the holographic recording medium and the address detector. In a holographic recording and reproducing apparatus 10, a reference beam having an elliptical beam shape transformed by a beam shaping optical system 30 and an object beam having an unchanged circular shape are projected onto a holographic recording medium 20 so that interference fringes are allowed to be formed only within the elliptical shape. Therefore, even when the distance of an address detector 28 from the holographic recording medium 20 is reduced, crosstalk is prevented between array-shaped two-dimensional photodetectors 28A, 28B, 28C, and so on constituting the address detector 28.

    摘要翻译: 在搜索记录在全息记录介质上的信息时,地址检测器的光接收表面上的光束点的间距减小以减小全息记录介质和地址检测器之间的距离。 在全息记录和再现装置10中,具有由光束整形光学系统30变换的椭圆形波束形状的参考光束和具有不变的圆形的物体光束投影到全息记录介质20上,使得干涉条纹被允许为 仅在椭圆形状内形成。 因此,即使减少地址检测器28与全息记录介质20的距离,也可以防止构成地址检测器28的阵列状的二维光电检测器28A,28B,28​​C等之间的串扰。

    Holographic recording medium and method for manufacturing the same
    40.
    发明申请
    Holographic recording medium and method for manufacturing the same 失效
    全息记录介质及其制造方法

    公开(公告)号:US20070013982A1

    公开(公告)日:2007-01-18

    申请号:US10574468

    申请日:2004-09-29

    IPC分类号: G03H1/02

    摘要: A holographic recording medium which has parallelism of high precision and causes little substrate deformation ascribable to contraction of its recording areas when recording interference fringes, and a method for manufacturing the same. The holographic recording medium 10 has a holographic recording material layer 18 between a first transparent substrate 12 and a second transparent substrate 14. This holographic recording material layer 18 is formed integrally with a spacer 16 which is composed of a large number of spherical beads 16A arranged so as to surround recording areas 20 for interference fringes to be recorded on.

    摘要翻译: 一种全息记录介质,其具有高精度的并行性,并且在记录干涉条纹时引起由于其记录区域的收缩而引起的基板变形很小及其制造方法。 全息记录介质10在第一透明基板12和第二透明基板14之间具有全息记录材料层18。 该全息记录材料层18与间隔物16一体地形成,该间隔件16由大量的球状珠16A构成,该球形珠16A被设置为围绕要记录的干涉条纹的记录区域20。