公开(公告)号：US20090225642A1

公开(公告)日：2009-09-10

申请号：US11719857

申请日：2005-11-21

申请人： Teunis Willem Tukker ,  Bernardus Hendrikus Wilhelmus Hendriks ,  Stein Kuiper ,  Joris Jan Vrehen ,  Petrus Theodorus Jutte

发明人： Teunis Willem Tukker ,  Bernardus Hendrikus Wilhelmus Hendriks ,  Stein Kuiper ,  Joris Jan Vrehen ,  Petrus Theodorus Jutte

IPC分类号： G11B7/135 ,  G02B3/14

CPC分类号： G02B26/005 ,  G02B3/14

摘要： A switchable optical element having an optical path (OP) for a radiation beam and having a first state and a second state, the element comprising: a first fluid (12) and a second, different, fluid (14) which are immiscible and which are separated from each other by a fluid meniscus (16); a first, transparent, wall part and a second, transparent, wall part spaced from each other along the optical path; and a fluid switching system which is arranged to apply forces to the first and/or the second fluid in order to switch the element between the first and the second state. The first wall part includes a non-planar wavefront modifier (28), and wherein the fluid switching system is arranged to apply the forces so that when the element is in the first state, the first wall part is covered by the first fluid (12); and when the element is in the second state, the first wall part is covered by the second fluid (14). The switchable optical element is characterised in that the fluid switching system is arranged to switch between the first state and the second state such that when the element is in the first state the second wall part is covered by the second fluid, and when the element is in the second state the second wall part is covered by the first fluid. When the element is in both the first state and the second state, at least part of the fluid meniscus (16) is located on the optical path.

摘要翻译： 一种具有用于辐射束的光路（OP）并具有第一状态和第二状态的可切换光学元件，所述元件包括：第一流体（12）和与第二流体不同的第二流体（14），并且其中 通过流体弯液面（16）彼此分离; 第一，透明的壁部分和第二透明壁部分，沿着光路彼此间隔开; 以及布置成向第一和/或第二流体施加力以便在第一和第二状态之间切换元件的流体切换系统。 第一壁部分包括非平面波前修正器（28），并且其中流体切换系统被布置成施加力，使得当元件处于第一状态时，第一壁部分被第一流体（12 ）; 并且当元件处于第二状态时，第一壁部分被第二流体（14）覆盖。 可切换光学元件的特征在于，流体切换系统被布置成在第一状态和第二状态之间切换，使得当元件处于第一状态时，第二壁部被第二流体覆盖，并且当元件为 在第二状态下，第二壁部被第一流体覆盖。 当元件处于第一状态和第二状态时，流体弯液面（16）的至少一部分位于光路上。

公开(公告)号：US20090296559A1

公开(公告)日：2009-12-03

申请号：US11721558

申请日：2005-12-15

申请人： Teunis Willem Tukker ,  Joris Jan Vrehen ,  Bernardus Hendrikus Wilhelmus Hendriks ,  Stein Kuiper

发明人： Teunis Willem Tukker ,  Joris Jan Vrehen ,  Bernardus Hendrikus Wilhelmus Hendriks ,  Stein Kuiper

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G02B3/04 ,  G02B3/12 ,  G02B27/0031 ,  G11B7/1369 ,  G11B2007/0006

摘要： An optical scanning device for scanning optical record carriers having cover layers of different thicknesses. The scanning device has a first mode for scanning a first optical record carrier, a second mode for scanning a second optical record carrier and a third mode for scanning third optical record carrier. The device comprises an objective lens system and a switchable optical element having a first discrete state and a different, second discrete state. The element comprises: a fluid system including a first fluid and a different, second fluid (19); a wavefront modifier (17); and a fluid system switch for acting on the fluid system to switch between the first and second discrete states of the element. When the element is in the first discrete state, the wavefront modifier (17) is substantially covered by the first fluid, and when the element is in the second discrete state, the wavefront modifier (17) is substantially covered by the second fluid (19). The wavefront modifier includes a non-periodic phase structure including a plurality of stepped annular zones separated by steps, the zones forming a non-periodic radial pattern, and is characterized in that the wavefront modifier further includes an aspherical surface. The scanning device is arranged to operate using the element in the second state to generate spherical aberration when in the second mode, the aspherical surface of the element in the second state compensating for more than half of the spherical aberration due to the objective lens system and second record carrier in combination.

摘要翻译： 一种用于扫描具有不同厚度的覆盖层的光学记录载体的光学扫描装置。 扫描装置具有用于扫描第一光学记录载体的第一模式，用于扫描第二光学记录载体的第二模式和用于扫描第三光学记录载体的第三模式。 该装置包括物镜系统和具有第一离散状态和不同的第二离散状态的可切换光学元件。 该元件包括：流体系统，包括第一流体和不同的第二流体（19）; 波前修正器（17）; 以及用于作用在流体系统上以在元件的第一和第二离散状态之间切换的流体系统开关。 当元件处于第一离散状态时，波前修正器（17）基本被第一流体覆盖，并且当元件处于第二离散状态时，波前修正器（17）基本上被第二流体（19）覆盖 ）。 波前修正器包括非周期性相位结构，其包括通过台阶隔开的多个阶梯状环形区域，该区域形成非周期性径向图案，其特征在于波前修正器还包括非球面。 扫描装置被设置为在第二状态下使用元件进行操作以在第二模式中产生球面像差，在第二状态下的元件的非球面补偿由于物镜系统导致的球面像差的一半以上， 第二记录载体组合。

公开(公告)号：US07742381B2

公开(公告)日：2010-06-22

申请号：US10569038

申请日：2004-08-20

申请人： Bernardus Hendrikus Wilhelmus Hendriks ,  Joris Jan Vrehen ,  Pascal Jean Henri Bloemen ,  Peter Coops

发明人： Bernardus Hendrikus Wilhelmus Hendriks ,  Joris Jan Vrehen ,  Pascal Jean Henri Bloemen ,  Peter Coops

IPC分类号： G11B7/00

CPC分类号： G11B7/1378 ,  G11B7/13925 ,  G11B7/1398 ,  G11B2007/0013 ,  G11B2007/13727

摘要： The invention relates to an optical scanning device for scanning in a first mode a first information layer (111) of an information carrier and in a second mode a second information layer (112) of the information carrier. The optical scanning device comprises a radiation source (101) for generating a radiation beam (102), an objective system (105) for focusing an entrance beam on an information layer and an optical element (103) arranged between the radiation source and the objective system, for converting said radiation beam into a diverging entrance beam in the first mode and a converging entrance beam in the second mode.

摘要翻译： 本发明涉及一种用于以第一模式扫描信息载体的第一信息层（111）并且在第二模式中扫描信息载体的第二信息层（112）的光学扫描装置。 光学扫描装置包括用于产生辐射束（102）的辐射源（101），用于将入射光束聚焦在信息层上的物镜系统（105）和布置在辐射源与物镜之间的光学元件（103） 系统，用于将所述辐射束转换成处于第一模式的发散入射光束和在第二模式中的会聚进入光束。

公开(公告)号：US07701832B2

公开(公告)日：2010-04-20

申请号：US10599069

申请日：2005-03-16

申请人： Teunis Willem Tukker ,  Joris Jan Vrehen

发明人： Teunis Willem Tukker ,  Joris Jan Vrehen

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B2007/0006

摘要： An optical scanning device scans optical record carriers, such as three optical record carriers, where each optical record carrier has an information layer having a depth which is different from the information layer depth of other optical record carriers, where d3

摘要翻译： 光学扫描装置扫描诸如三个光学记录载体的光学记录载体，其中每个光学记录载体具有信息层，该信息层的深度不同于其他光学记录载体的信息层深度，其中d3

公开(公告)号：US07773490B2

公开(公告)日：2010-08-10

申请号：US11721170

申请日：2005-12-02

申请人： Joris Jan Vrehen ,  Teunis Willem Tukker

发明人： Joris Jan Vrehen ,  Teunis Willem Tukker

IPC分类号： G11B7/135

CPC分类号： G11B7/1275 ,  G02B27/0031 ,  G11B7/13922 ,  G11B2007/0006 ,  G11B2007/0013

摘要： An optical compensator is included in an optical scanning device for scanning optical record carriers. There are at least two different information layer depths within two different carriers. The scanning device produces first to third radiation beams respectively having different wavelengths for scanning first to third record carriers, respectively. The optical compensator has a non-periodic phase structure through which each radiation beam is arranged to pass. The non-periodic phase structure includes stepped annular zones separated by steps. The zones form a non-periodic radial pattern. The stepped annular zones introduce first to third different wavefront modifications into at least part of the first to third radiation beams, respectively. Radial height variations are included in the stepped annular zones, and are arranged such that non-zero contributions are provided to each wavefront modification by the optical compensator in each stepped annular zone.

摘要翻译： 光学补偿器包括在用于扫描光学记录载体的光学扫描装置中。 两个不同载体内至少有两个不同的信息层深度。 扫描装置分别产生分别具有用于扫描第一至第三记录载体的不同波长的第一至第三辐射束。 光学补偿器具有非周期性相位结构，每个辐射束通过该相位结构通过。 非周期性相结构包括通过台阶隔开的阶梯状环状区域。 这些区域形成非周期性径向图案。 阶梯形环形区域分别将第一至第三不同波前修改引入至少部分第一至第三辐射束。 径向高度变化包括在阶梯形环形区域中，并且被布置成使得通过光学补偿器在每个阶梯状环形区域中为每个波前修改提供非零的贡献。

公开(公告)号：US20090252017A1

公开(公告)日：2009-10-08

申请号：US11721170

申请日：2005-12-02

申请人： Joris Jan Vrehen ,  Teunis Willem Tukker

发明人： Joris Jan Vrehen ,  Teunis Willem Tukker

IPC分类号： G11B7/00

CPC分类号： G11B7/1275 ,  G02B27/0031 ,  G11B7/13922 ,  G11B2007/0006 ,  G11B2007/0013

摘要： An optical compensator for use in an optical scanning device for scanning optical record carriers, there being at least two different information layer depths within two different ones of the carriers, the optical record carriers including a first optical record carrier (3′), 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 the first, second and third record carriers, respectively, the first, second and third radiation beams having different predetermined wavelengths. The optical compensator has a non-periodic phase structure through which each of the first, second and third radiation beams are arranged to pass, the 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. The optical compensator includes radial height variations in the plurality of stepped annular zones, the radial height variations being arranged such that non-zero contributions are provided to each of the first, second and third wavefront modifications by the optical compensator in each of the stepped annular zones.

摘要翻译： 一种用于扫描光学记录载体的光学扫描装置的光学补偿器，在两个不同的载体内存在至少两个不同的信息层深度，光学记录载体包括第一光学记录载体（3'），第二个光学记录载体 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），用于产生用于分别扫描第一，第二和第三记录载体的第一，第二和第三辐射束，第一，第二和第三辐射 具有不同预定波长的光束。 光学补偿器具有非周期相位结构，第一，第二和第三辐射束中的每一个被布置成通过，非周期性相位结构包括由台阶分隔开的多个阶梯状环形区域， 所述阶梯形环形区域分别将第一，第二和第三不同波前修改引入到第一，第二和第三辐射束的至少一部分中。 光学补偿器包括多个阶梯形环形区域中的径向高度变化，径向高度变化被布置成使得通过光学补偿器在每个阶梯形环形部分中的每个第一，第二和第三波前修正提供非零贡献 区域。

公开(公告)号：US20080239926A1

公开(公告)日：2008-10-02

申请号：US12088091

申请日：2006-09-15

申请人： Teunis Willem Tukker ,  Joris Jan Vrehen

发明人： Teunis Willem Tukker ,  Joris Jan Vrehen

IPC分类号： G11B7/135

CPC分类号： G11B7/13922 ,  G11B7/1353 ,  G11B2007/0006 ,  G11B2007/0013

摘要： 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.

摘要翻译： 一种用于光学扫描装置的光学补偿器，用于扫描具有第一信息层深度d的信息层（2'）的第一光学记录载体（3'）和具有信息层的第二光学记录载体（3“） 层（2“）处于不同的信息层深度d 2。 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。

公开(公告)号：US20100046347A1

公开(公告)日：2010-02-25

申请号：US11814012

申请日：2006-01-18

申请人： Teunis Willem Tukker ,  Joris Jan Vrehen

发明人： Teunis Willem Tukker ,  Joris Jan Vrehen

IPC分类号： G11B7/135

CPC分类号： G11B7/1275 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

摘要： 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.

摘要翻译： 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，阶梯形环形区域引入第一，第二和第三不同波前修改 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。

公开(公告)号：US06650613B2

公开(公告)日：2003-11-18

申请号：US10122465

申请日：2002-04-15

申请人： Petrus Theodorus Jutte ,  Peter Coops ,  Joris Jan Vrehen

发明人： Petrus Theodorus Jutte ,  Peter Coops ,  Joris Jan Vrehen

IPC分类号： G11B700

CPC分类号： G11B7/1356 ,  G11B7/1263 ,  G11B2007/0006

摘要： An optical scanning device for scanning a recordable optical disk (20) with a laser beam having a linear polarisation. A quarter wave plate (16) is used to alter the polarisation of the beam on reflection from the disk. A partially polarising beam splitter (8) is used and arranged such that a proportion of intensity of the incident beam passed is greater than a proportion of intensity of the reflected beam. A relatively high optical signal power at the disk (20) can be achieved for recording purposes whilst allowing the beam splitter (8) to be manufactured in a relatively efficient manner.

公开(公告)号：US20080259770A1

公开(公告)日：2008-10-23

申请号：US11792275

申请日：2005-12-01

申请人： Petrus Theodorus Jutte ,  Joris Jan Vrehen

发明人： Petrus Theodorus Jutte ,  Joris Jan Vrehen

IPC分类号： G11B7/00

CPC分类号： G11B7/1392 ,  G11B7/08582 ,  G11B7/13925

摘要： The present invention concerns to an optical pick-up unit for use in a multi-disc system, for scanning a first type of record carriers and at least a second type of record carriers, the second type of record carriers having an information density different from an information density of the first type of record carriers, the optical pick-up unit comprising at least two optical branches (3, 5, 7), a first optical branch (3) having a first radiation source (39) emitting a first radiation beam with a first wavelength, which first radiation beam propagates along a first optical path (4), and a second optical branch (5, 7) having a second radiation source (51, 59) emitting a second radiation beam with a second wavelength, which second radiation beam propagates along a second optical path (6, 8), the first and the second wavelengths and the first and the second optical path (4, 6, 8) being different and the first and the second radiation beam propagating—after having passed the first and the second optical path (4, 6, 8)—along a common optical path (66) comprising an objective lens (73) for focusing the first radiation beam or the second radiation beam at the record carrier (35). The optical pick-up unit is characterized in that at least one of the optical branches (3, 5, 7) comprises an optical component (41, 53, 61) that is movable for correcting an optical aberration in the first or second radiation beam.

摘要翻译： 本发明涉及一种用于多盘系统的光拾取单元，用于扫描第一类型的记录载体和至少第二类记录载体，第二类型的记录载体具有不同于 第一类型的记录载体的信息密度，所述光学拾取单元包括至少两个光学分支（3,5,7），第一光学分支（3），其具有发射第一辐射的第一辐射源（39） 第一辐射束沿着第一光路（4）传播的第一波长的光束和具有发射具有第二波长的第二辐射束的第二辐射源（51,59）的第二光分支（5,7） 所述第二辐射束沿着第二光路（6,8）传播，所述第一和第二波长以及所述第一和第二光路（4,6,8）是不同的，并且所述第一和第二辐射束传播 已经过去了 他的第一和第二光路（4,6,8） - 包括用于将第一辐射束或第二辐射束聚焦在记录载体（35）处的物镜（73）的公共光路（66）。 光学拾取单元的特征在于，至少一个光学分支（3,5,7）包括可移动的光学部件（41,53,61），用于校正第一或第二辐射束中的光学像差 。