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    • 52. 发明申请
    • METHOD AND DEVICE FOR COMPENSATING TILT OF AN OPTICAL DATA CARRIER
    • 用于补偿光学数据载体的倾斜的方法和设备
    • WO2005036540A2
    • 2005-04-21
    • PCT/IB2004/003240
    • 2004-10-01
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.TUKKER, TeunisANDERSEN, OleLIEDENBAUM, Coen
    • TUKKER, TeunisANDERSEN, OleLIEDENBAUM, Coen
    • G11B7/095
    • G11B7/13927G11B7/0956G11B7/1353
    • The invention relates to a method of and a device for compensating tilt of an optical or magneto-optical disc (1) exhibiting unknown tilt when placed in an apparatus for reading and/or writing data from and/or onto the optical or magneto-optical disc. A holographic optical element (23) containing a plurality of holograms each defining a phase profile able to compensate at least a specific coma amount is placed in a light path of an optical read/write unit (4) of the apparatus. The amount of tilt of the disc or coma introduced by the tilt is detected (14, 21), and a hologram defining a phase profile corresponding to the detected amount of tilt or coma is selected and accessed among the plurality of holograms of the holographic optical element for compensating the detected amount of tilt or coma. The invention applies to any type of optical data carrier such as so-called LD, CD, R-CD, DVD, DVD+R, DVD+RW, DVD-RW, DVR (Blue Ray).
    • 本发明涉及用于补偿当放置在用于从和/或向其中读取和/或写入数据的设备中时表现出未知倾斜的光学或磁光盘(1)的倾斜的方法和设备, 或者到光盘或磁光盘上。 包含多个全息图的全息光学元件(23)被放置在该装置的光学读/写单元(4)的光路中,每个全息图都限定了能够补偿至少特定彗形象差量的相位轮廓。 检测通过倾斜引入的盘或彗形像差的倾斜量(14,21),并且在全息光学系统的多个全息图中选择和访问定义与检测到的倾斜或彗形象差量相对应的相位轮廓的全息图 用于补偿检测到的倾斜或彗差量。 本发明适用于诸如所谓的LD,CD,R-CD,DVD,DVD + R,DVD + RW,DVD-RW,DVR(蓝光)的任何类型的光学数据载体。
    • 53. 发明申请
    • OPTICAL SCANNING DEVICE
    • 光学扫描装置
    • WO2004055794A1
    • 2004-07-01
    • PCT/IB2003/050028
    • 2003-12-01
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.TUKKER, Teunis, W.HENDRIKS, Bernardus, H., W.
    • TUKKER, Teunis, W.HENDRIKS, Bernardus, H., W.
    • G11B7/125
    • G11B7/1398G11B7/1362G11B7/1376
    • An optical scanning device (1) is for scanning an information layer (2) by means of a radiation beam (4). The device includes a radiation source (7) for supplying said radiation beam, an objective lens (10) for transforming said radiation beam into a scanning spot (19) at the position of the information layer, and a beam intensity modifier (8) for redistributing the intensity (I 2 ) over the cross-section of said radiation beam in order to change the size of said scanning spot. The beam intensity modifier has an entrance pupil (8a) and an exit pupil (8b). Furthermore, it is arranged so that any ray of said radiation beam entering said beam intensity modifier at a distance r 1 from the central ray of that beam reflects at least twice between said entrance and exit pupils such that the transverse magnification M of said modifier is defined by a decreasing function of the distance r l .
    • 光学扫描装置(1)用于通过辐射束(4)扫描信息层(2)。 该装置包括用于提供所述辐射束的辐射源(7),用于将所述辐射束变换成信息层位置的扫描点(19)的物镜(10)和用于 在所述辐射束的横截面上重新分布强度(I2),以便改变所述扫描点的尺寸。 光束强度调节器具有入射光瞳(8a)和出射光瞳(8b)。 此外,它被布置成使得进入所述光束强度调节器的所述辐射束的任何射线距离该光束的中心射线的距离r1在所述入射和出射光瞳之间反射至少两次,使得所述改性器的横向放大率M被限定 通过距离rl的递减函数。
    • 55. 发明申请
    • OPTICAL COMPENSATOR, OPTICAL ELEMENT, OPTICAL SCANNING HEAD AN OPTICAL SCANNING DEVICE
    • 光学补偿器,光学元件,光学扫描头光学扫描器件
    • WO2007034389A3
    • 2008-11-06
    • PCT/IB2006053307
    • 2006-09-15
    • KONINKL PHILIPS ELECTRONICS NVTUKKER TEUNIS WVREHEN JORIS J
    • TUKKER TEUNIS WVREHEN JORIS J
    • G11B7/135
    • G11B7/13922G11B7/1353G11B2007/0006G11B2007/0013
    • An optical compensator for use in an optical scanning device for scanning a first optical record carrier (3') having an information layer (2') at a first information layer depth d and a second optical record carrier (3") having an information layer (2") at a second, different information layer depth d2. The scanning of the first and second optical record carrier is effected using a scanning spot (16) formed on the information layer by a first radiation beam having a first wavelength and a second radiation beam having a second, different wavelength respectively. The optical compensator includes a substantially circular phase structure having an annular zone arranged in the path of the first radiation beam and the second radiation beam. The annular zone is adapted for imparting a wavefront modification to said first radiation beam causing destructive interference over the area of the scanning spot (16) for radiation incident on said annular zone; and a wavefront modification to said second radiation beam for compensating spherical aberration. A further aspect of the present invention relates to an optical element for defining the numerical aperture of a radiation beam. The optical compensator or optical element can be used for a two- or three-wavelength system. The invention also discloses an optical scanning head, and an optical scanning device using the optical compensator. The invention also relates to an optical scanning head and an optical scanning device.
    • 一种光学补偿器,用于光扫描装置,用于扫描具有第一信息层深度d的信息层(2')的第一光记录载体(3')和具有信息层的第二光记录载体(3“) (2“)在不同的信息层深度d2处。 第一和第二光学记录载体的扫描是利用形成在信息层上的扫描点(16)通过具有第一波长的第一辐射束和分别具有第二不同波长的第二辐射束来实现的。 光学补偿器包括基本圆形的相位结构,其具有布置在第一辐射束和第二辐射束的路径中的环形区域。 所述环形区域适于对所述第一辐射束赋予波前修正,对所述环形区域上的辐射在所述扫描点(16)的区域上产生相消干涉; 以及对所述第二辐射束的波前修改以补偿球面像差。 本发明的另一方面涉及一种用于限定辐射束的数值孔​​径的光学元件。 光学补偿器或光学元件可用于两个或三个波长系统。 本发明还公开了一种光学扫描头和使用光学补偿器的光学扫描装置。 本发明还涉及一种光学扫描头和光学扫描装置。
    • 57. 发明申请
    • OPTICAL SCANNING DEVICE
    • 光学扫描装置
    • WO2006075271A3
    • 2006-10-26
    • PCT/IB2006050057
    • 2006-01-06
    • KONINKL PHILIPS ELECTRONICS NVSTALLINGA SJOERDTUKKER TEUNIS W
    • STALLINGA SJOERDTUKKER TEUNIS W
    • G02B5/18G11B7/125G11B7/135
    • G11B7/1353G11B7/1275
    • An optical scanning device for scanning a first optical record carrier, a second, different, optical record carrier and a third, different, optical record carrier, each record carrier having an information layer. The scanning device includes a radiation source system arranged to produce first, second and third radiation beams for scanning the first, second and third record carriers with first, second and third wavelengths, respectively; and a diffraction structure (34) arranged to introduce a first, second and third wavefront modification into the first, second and third radiation beams, respectively. The diffraction structure includes a surface having a plurality of steps (38), each step having a step height (h j ) which controls a form of the first, second and third wavefront modifications, characterized in that the diffraction structure is formed from a material having an Abbe number of less than 50, whereby dispersion is provided between the first, second and third wavelengths in order to further control the form of the first, second and third wavefront modifications.
    • 一种用于扫描第一光学记录载体,第二不同光学记录载体和第三不同光学记录载体的光学扫描装置,每个记录载体具有信息层。 该扫描装置包括一个辐射源系统,该辐射源系统设置成产生分别用第一,第二和第三波长扫描第一,第二和第三记录载体的第一,第二和第三辐射束; 和衍射结构(34),其被布置为分别将第一,第二和第三波前修正引入第一,第二和第三辐射束。 的衍射结构包括具有多个台阶(38)的表面上,具有台阶高度(h Ĵ),其控制所述第一,第二和第三的波前修正的一种形式中,每个步骤特征在于,所述 衍射结构由具有小于50的阿贝数的材料形成,由此在第一波长,第二波长和第三波长之间提供色散,以便进一步控制第一,第二和第三波前修改的形式。
    • 58. 发明申请
    • OPTICAL SCANNING DEVICE
    • 光学扫描装置
    • WO2006095303A1
    • 2006-09-14
    • PCT/IB2006/050691
    • 2006-03-06
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.TUKKER, Teunis, W.LIEDENBAUM, Coen, T., H., F.HENDRIKS, Bernardus, H., W.STALLINGA, SjoerdIMMINK, Albert, H., J.KUIPER, SteinCHEN, Ming, S.
    • TUKKER, Teunis, W.LIEDENBAUM, Coen, T., H., F.HENDRIKS, Bernardus, H., W.STALLINGA, SjoerdIMMINK, Albert, H., J.KUIPER, SteinCHEN, Ming, S.
    • G11B7/135
    • G11B7/1369G11B7/0909G11B7/1381
    • An optical scanning device (1) includes a radiation source (7), a detector (23) and a beam splitter (9). The radiation source (7) provides an incident radiation beam (4, 20) along a first optical path (19a) for scanning an information layer (2) of an optical record carrier (3). The detector (23) detects at least a portion of the radiation beam (22) reflected from the optical record carrier (3). The beam splitter (9) transmits the incident radiation beam (4) received from the radiation source along the first optical path (19a) towards the optical record carrier. The beam splitter (9) also transmits the reflected beam (22) received from the optical record carrier (3) along a second, different optical path (19b) towards the detector. The optical scanning device further includes a beam-deflecting element (30; 130; 230; 330; 630; 830; 930) positioned on the second optical path (19b) between the beam splitter (9) and the detector (23). The beam-deflecting element (30; 130; 230; 330; 630; 830; 930) is arranged to controllably deflect the path of the reflected radiation beam (22) for adjusting the lateral position of said reflected radiation beam incident upon the detector (23) over a predetermined range.
    • 光学扫描装置(1)包括辐射源(7),检测器(23)和分束器(9)。 辐射源(7)沿着第一光路(19a)提供入射辐射束(4,20),用于扫描光学记录载体(3)的信息层(2)。 检测器(23)检测从光学记录载体(3)反射的辐射束(22)的至少一部分。 分束器(9)将从辐射源接收的入射辐射束(4)沿着第一光路(19a)传送到光学记录载体。 分束器(9)还将从光学记录载体(3)接收的反射光束(22)沿着第二不同的光路(19b)传送到检测器。 光学扫描装置还包括位于分束器(9)和检测器(23)之间的第二光路(19b)上的光束偏转元件(30; 130; 230; 330; 630; 830; 930)。 光束偏转元件(30; 130; 230; 330; 630; 830; 930)被布置成可控地偏转反射的辐射束(22)的路径,用于调节入射到检测器上的所述反射的辐射束的横向位置( 23)超过预定范围。
    • 59. 发明申请
    • SPOT SIZE FOCUS ERROR DETECTION FOR MULTIPLE BEAM OPTICAL SCANNING DEVICE
    • 多光束光学扫描装置的光斑尺寸聚焦误差检测
    • WO2006082544A2
    • 2006-08-10
    • PCT/IB2006050284
    • 2006-01-26
    • KONINKL PHILIPS ELECTRONICS NVVAN DER LEE ALEXANDER MLIEDENBAUM COEN T H FTUKKER TEUNIS W
    • VAN DER LEE ALEXANDER MLIEDENBAUM COEN T H FTUKKER TEUNIS W
    • G11B7/09G11B7/13G11B7/14
    • G11B7/0912G11B7/131G11B7/14
    • A device (1) for scanning an optical disc (6), the disc (6) comprising substantially parallel data tracks (10). The device (1) comprises an optical unit for creating track light spots (12) on the data tracks (10) and a plurality of detector light spots on a plurality of signal detectors. The device further comprises a focus error unit for with a beam manipulating element (21, 22, 22a, 92) for providing for at least one of the reflected beams a first optical path (24) to a first segmented detector (8a) and a second optical path (25) to a second segmented detector (8b). The lengths of the first optical path (24) and the second optical path (25) exhibit a difference (Dd), such that an intensity distribution of a first detector light spot on the first segmented detector (8a) is equal to an intensity distribution of a second detector light spot on the second segmented detector (8b) when the at least one track light spot is correctly focussed and that the intensity distribution on the first segmented detector (8a) differs from the intensity distribution on the second segmented detector (8b) when the at least one track light spot is not correctly focussed. The difference (Dd) is substantially less than a quotient of a distance between two adjacent detector light spots (Ds) and a numerical aperture (NA) of the lens (7). A dimension (Dl) of a light detecting area of the segmented detectors in a direction of adjacent detector light spots is less than the distance (Ds) between two adjacent detector light spots.
    • 一种用于扫描光盘(6)的设备(1),所述盘(6)包括基本上平行的数据轨道(10)。 该设备(1)包括用于在数据轨道(10)上创建轨道光点(12)的光学单元以及在多个信号检测器上的多个检测器光点。 该装置还包括聚焦误差单元,用于利用光束操纵元件(21,22,22a,92)将第一光路(24)提供给第一分段检测器(8a)的至少一个反射光束,以及 第二光路(25)传送到第二分段检测器(8b)。 第一光路(24)和第二光路(25)的长度呈现差异(Dd),使得第一分段检测器(8a)上的第一检测器光点的强度分布等于强度分布 当所述至少一个轨道光点被正确地聚焦并且所述第一分段检测器(8a)上的强度分布不同于所述第二分段检测器(8b)上的所述第二分段检测器(8b)上的所述强度分布时, ),当至少一个轨道光点未被正确地聚焦时。 差值(Dd)实质上小于两个相邻探测器光点(Ds)之间的距离与透镜(7)的数值孔径(NA)的商。 分段检测器的光检测区域在相邻检测器光点的方向上的尺寸(D1)小于两个相邻检测器光点之间的距离(Ds)。
    • 60. 发明申请
    • OPTICAL SCANNING DEVICE
    • 光学扫描装置
    • WO2006077542A2
    • 2006-07-27
    • PCT/IB2006/050190
    • 2006-01-18
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.TUKKER, Teunis, W.VREHEN, Joris, J.
    • TUKKER, Teunis, W.VREHEN, Joris, J.
    • G11B7/135
    • G11B7/1275G11B7/1367G11B7/13922G11B2007/0006
    • An optical scanning device for scanning optical record carriers, the optical record carriers including a first optical record carrier, a second optical record carrier and a third optical record carrier, the scanning device including a radiation source system (7) for producing first, second and third radiation beams for scanning said first, second and third record carriers, respectively, in first, second and third scanning modes, said first, second and third radiation beams having different predetermined wavelengths, the scanning device comprising an objective lens and an optical compensator, the optical compensator having a non-periodic phase structure through which each of said first, second and third radiation beams are arranged to pass, said non-periodic phase structure including a plurality of stepped annular zones separated by steps, the zones forming a non-periodic radial pattern, the stepped annular zones introducing first, second and third different wavefront modifications into at least part of the first, second and third radiation beams, respectively, characterized in that said objective lens is arranged to apply a focus offset when scanning said first record carrier, which focus offset is arranged to provide a phase modification which, in combination with said optical compensator, compensates spherical aberration in the first radiation beam.
    • 一种用于扫描光学记录载体的光学扫描装置,所述光学记录载体包括第一光学记录载体,第二光学记录载体和第三光学记录载体,所述扫描装置包括辐射源系统(7),用于产生第一,第二和 用于分别以第一,第二和第三扫描模式扫描所述第一,第二和第三记录载体的第三辐射束,所述第一,第二和第三辐射束具有不同的预定波长,所述扫描装置包括物镜和光学补偿器, 所述光学补偿器具有非周期相位结构,所述第一,第二和第三辐射束中的每一个被布置成通过,所述非周期性相位结构包括由台阶分开的多个阶梯状环形区域, 周期性径向图案,阶梯状环形区域将第一,第二和第三不同波前修改引入 分别是第一,第二和第三辐射束的至少一部分,其特征在于,所述物镜被布置成在扫描所述第一记录载体时施加聚焦偏移,所述聚焦偏移被布置成提供相位改变,其结合 所述光学补偿器补偿第一辐射束中的球面像差。