Spot Size Focus Error Detection For Multiple Beam Optical Scanning Device
    1.
    发明申请
    Spot Size Focus Error Detection For Multiple Beam Optical Scanning Device 审中-公开
    多光束光学扫描装置的斑点聚焦误差检测

    公开(公告)号:US20080159112A1

    公开(公告)日:2008-07-03

    申请号:US11815107

    申请日:2006-01-26

    IPC分类号: G11B7/00

    CPC分类号: G11B7/0912 G11B7/131 G11B7/14

    摘要: 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 (D1) 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.

    摘要翻译: 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)。 设备(1)包括用于在数据轨道(10)上创建轨道光点(12)的光学单元和多个信号检测器上的多个检测器光点。 该装置还包括一个聚焦误差单元,用于与光束操纵元件(21,22,22a,92)一起提供至少一个反射光束到第一分段检测器(8a)的第一光路(24) 以及到第二分段检测器(8b)的第二光路(25)。 第一光路(24)和第二光路(25)的长度呈现差(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 当所述至少一个轨道光点被正确聚焦并且所述第一分段检测器(8a)上的强度分布与所述第二分段检测器(8a)上的强度分布不同时,所述第二分段检测器(8b)上的第二检测器光点的分布 当至少一个轨道光点未被正确聚焦时,检测器(8b)。 差值(Dd)基本上小于两个相邻检测器光点(Ds)和透镜(7)的数值孔径(NA)之间的距离的商。 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(D 1)小于两个相邻检测器光点之间的距离(Ds)。

    OPTIMAL DETECTION OF TWODOS SIGNALS
    3.
    发明申请
    OPTIMAL DETECTION OF TWODOS SIGNALS 审中-公开
    TWODOS信号的最佳检测

    公开(公告)号:US20090279409A1

    公开(公告)日:2009-11-12

    申请号:US11720624

    申请日:2005-11-25

    IPC分类号: G11B7/135

    摘要: A method and a device for simultaneously reading information from a plurality of data tracks (14) of an optical disc (22) by means of a detector illuminating said plurality of data tracks with laser spots (25), wherein light reflected from the laser spots is collected by means of a servo lens (29), further providing the detector with a plurality of detector elements (28a, 28b, 28c, 31a, 42a, 28bc, 28cc, 32a, 32b, 42ac, 51a, 52a, 52b) spaced apart from each other, arranging each detector element to detect (read) light reflected from a data track allotted to each element, arranging at most two detector elements (28bc, 28cc, 32a, 32b, 42ac, 52a, 52b) to be segmented detectors for providing both a power signal for the allotted track and an output signal for focus error control in a servo system guiding said detector along said tracks, reading only the power signal for each track by means of second detector elements (28a, 28b, 28c, 31a, 42a, 51a) and arranging each one of said second detector elements to be of substantially smaller area than the area of one of said first detector elements.

    摘要翻译: 一种用于通过利用激光点(25)照射所述多个数据轨道的检测器从光盘(22)的多个数据轨道(14)同时读取信息的方法和装置,其中从激光点反射的光 通过伺服透镜(29)收集,进一步向检测器提供间隔开的多个检测器元件(28a,28b,28c,31a,42a,28bc,28cc,32a,32b,42ac,51a,52a,52b) 将每个检测器元件布置成检测(读取)从分配给每个元件的数据轨道反射的光,将至少两个检测器元件(28bc,28cc,32a,32b,42ac,52a,52b)布置成分段检测器 用于在所述轨道上引导所述检测器的伺服系统中提供用于分配轨道的功率信号和用于聚焦误差控制的输出信号,仅通过第二检测器元件(28a,28b,28c, 31a,42a,51a)并且布置所述第二检测中的每一个 或元件具有比所述第一检测器元件之一的面积更小的面积。

    MICROELECTRONIC SENSOR DEVICE FOR DETECTING LABEL PARTICLES
    4.
    发明申请
    MICROELECTRONIC SENSOR DEVICE FOR DETECTING LABEL PARTICLES 有权
    用于检测标签颗粒的微电子传感器装置

    公开(公告)号:US20100092996A1

    公开(公告)日:2010-04-15

    申请号:US12518164

    申请日:2007-12-10

    IPC分类号: G01N33/53 C12M1/34

    摘要: The invention relates to a microelectronic sensor device for the detection of target components that comprise label particles, for example magnetic particles (1). The sensor device comprises a carrier (11) with a binding surface (12) at which target components can collect and optionally bind to specific capture elements. An input light beam (L1) is transmitted into the carrier and totally internally reflected at the binding surface (12). The amount of light in the output light beam (L2) and optionally also of fluorescence light emitted by target components at the binding surface is then detected by a light detector (31). Evanescent light generated during the total internal reflection is affected (absorbed, scattered) by target components and/or label particles (1) at the binding surface (12) and will therefore be missing in the output light beam (L2). This can be used to determine the amount of target components at the binding surface (12) from the amount of light in the output light beam (L2, L2a, L2b). A magnetic field generator (41) is optionally used to generate a magnetic field (B) at the binding surface (12) by which magnetic label particles (1) can be manipulated, for example 15 attracted or repelled.

    摘要翻译: 本发明涉及用于检测包含标签颗粒(例如磁性颗粒(1))的目标组分的微电子传感器装置。 传感器装置包括具有结合表面(12)的载体(11),靶组分可以收集并任选地结合到特定的捕获元件。 输入光束(L1)被传输到载体中并在结合表面(12)处全反射。 由光检测器(31)检测输出光束(L2)中的光量以及可选地由结合表面上的目标成分发出的荧光。 在全内反射期间产生的渐消光在目标部件和/或粘合表面(12)处的标签颗粒(1)受到影响(吸收,散射),因此在输出光束(L2)中将被丢失。 这可以用于根据输出光束(L2,L2a,L2b)中的光量来确定结合表面(12)处的目标成分的量。 可选地使用磁场发生器(41)来在绑定表面(12)处产生磁场(B),通过该磁场可以操纵磁性标签颗粒(1),例如15被吸引或排斥。

    DETERMINING A FLOW CHARACTERISTIC OF AN OBJECT BEING MOVABLE IN AN ELEMENT
    5.
    发明申请
    DETERMINING A FLOW CHARACTERISTIC OF AN OBJECT BEING MOVABLE IN AN ELEMENT 有权
    确定在元素中可移动的对象的流动特性

    公开(公告)号:US20140085635A1

    公开(公告)日:2014-03-27

    申请号:US14117635

    申请日:2012-05-22

    IPC分类号: G01F1/00 G01N21/53

    摘要: A sensor device (340) for determining a flow characteristic of an object (341) being movable in an element (342) comprises a light emitting unit (344) configured for emitting light towards the element (342) and a light detecting unit (344) configured for detecting light scattered back from the element (342). The sensor device (340) comprises an optical unit (346) configured for spatially separating a light incidence element portion (348) of the element (342) and a light detection element portion (350) of the element (342) from one another, wherein the light incidence element portion (348) is associated with the emitted light inciding on the element (342) and the light detection element portion (350) is associated with the back-scattered light scattered back from the element (342) for detection. The sensor device (340) comprises a determining unit (358) configured for determining the flow characteristic of the object (341) being movable in the element (342) based on light indicative of the emitted light and the detected back-scattered light. The sensor device (340) allows for an accurate and easy determination of the flow characteristic of the object (341).

    摘要翻译: 一种用于确定在元件(342)中可移动的物体(341)的流动特性的传感器装置(340)包括被配置为朝向元件(342)发射光的发光单元(344)和光检测单元(344) ),其被配置用于检测从所述元件(342)向后散射的光。 传感器装置(340)包括被配置用于将元件(342)的光入射元件部分(348)和元件(342)的光检测元件部分(350)彼此空间分离的光学单元(346) 其中所述光入射元件部分(348)与所述元件(342)上的发射光相关联,并且所述光检测元件部分(350)与从所述元件(342)返回的用于检测的后向散射光相关联。 传感器装置(340)包括确定单元(358),其被配置为基于指示所发射的光和检测到的反向散射光的光来确定可在元件(342)中移动的物体(341)的流动特性。 传感器装置(340)允许准确和容易地确定物体(341)的流动特性。

    METHOD OF OPERATING A SMI SENSOR AND CORRESPONDING SENSOR DEVICE
    6.
    发明申请
    METHOD OF OPERATING A SMI SENSOR AND CORRESPONDING SENSOR DEVICE 有权
    操作SMI传感器和相应传感器装置的方法

    公开(公告)号:US20120176595A1

    公开(公告)日:2012-07-12

    申请号:US13390545

    申请日:2010-08-10

    IPC分类号: G01C3/08 G01P3/36

    CPC分类号: G01S7/483 G01S17/06 G01S17/58

    摘要: The present invention refers to a method of operating a self-mixing interference sensor and a corresponding self-mixing interference sensor device. In the method the laser (1) of the device is controlled to periodically emit a laser pulse followed by an emission period of laser radiation having a lower amplitude. The pulse width of the laser pulse is selected such that the pulse after reflection at the object (3) re-enters the laser (1) during the emission period of laser radiation with lower amplitude. The corresponding SMI signal has an increased signal to noise ratio.

    摘要翻译: 本发明涉及一种操作自混合干涉传感器和相应的自混合干涉传感器装置的方法。 在该方法中,该装置的激光器(1)被控制以周期性地发射激光脉冲,随后是具有较低振幅的激光辐射的发射周期。 选择激光脉冲的脉冲宽度,使得在物体(3)反射之后的脉冲在具有较低振幅的激光辐射的发射周期期间重新进入激光器(1)。 相应的SMI信号具有增加的信噪比。

    High Frequency Central Aperture Tracking
    7.
    发明申请
    High Frequency Central Aperture Tracking 审中-公开
    高频中心光圈跟踪

    公开(公告)号:US20080232208A1

    公开(公告)日:2008-09-25

    申请号:US12064085

    申请日:2006-08-16

    IPC分类号: G11B7/09

    CPC分类号: G11B7/0903

    摘要: The present invention relates to an optical system for performing radial tracking on an associated optical record carrier. The optical system contains at least one radiation-emitting device capable of emitting at least three beams: a first beam for reading and/or recording information, and at least a second beam and a third beam for tracking. The optical system is adapted for radial tracking of the first spot from a tracking error signal generated based on the high-frequency component of the central-aperture signal of the second and third beams. The tracking error signal may be generated based on a difference signal of a DC-level of the power of the high-frequency components of the central-aperture signal.

    摘要翻译: 本发明涉及一种用于在相关联的光学记录载体上进行径向跟踪的​​光学系统。 该光学系统包含至少一个能够发射至少三个光束的辐射发射装置:用于读取和/或记录信息的第一光束,以及用于跟踪的至少第二光束和第三光束。 光学系统适于从基于第二和第三光束的中心孔径信号的高频分量产生的跟踪误差信号中径向跟踪第一光点。 可以基于中心孔径信号的高频分量的功率的直流电平的差信号来生成跟踪误差信号。

    APPARATUS FOR MEASURING A DISTANCE
    9.
    发明申请
    APPARATUS FOR MEASURING A DISTANCE 有权
    测量距离的装置

    公开(公告)号:US20130120759A1

    公开(公告)日:2013-05-16

    申请号:US13811397

    申请日:2011-07-19

    IPC分类号: G01B11/14

    摘要: The invention relates to an apparatus for measuring a distance. A self-mixing interference (SMI) unit (2) generates an SMI signal, wherein the SMI unit comprises a laser (3) emitting a first laser beam (4) for being directed to an object (5) and wherein the SMI signal depends on an interference of the first laser beam and a second laser beam (6) reflected by the object. A peak width determination unit (8) determines a peak width of the SMI signal, and a distance determination unit (9) determines a distance between the object and the SMI unit depending on the determined peak width of the SMI signal. Since the distance is determined depending on the peak width of the SMI signal, without requiring a laser driving current modulation, advanced electronics for modulating the driving current of the laser are not needed. This reduces the technical efforts needed for determining the distance.

    摘要翻译: 本发明涉及一种用于测量距离的装置。 自混合干扰(SMI)单元(2)产生SMI信号,其中SMI单元包括发射用于被引导到物体(5)的第一激光束(4)的激光器(3),并且其中SMI信号取决于 在所述第一激光束和由所述物体反射的第二激光束(6)的干涉下。 峰值宽度确定单元(8)确定SMI信号的峰值宽度,距离确定单元(9)根据确定的SMI信号的峰值宽度确定对象与SMI单元之间的距离。 由于距离取决于SMI信号的峰值宽度,不需要激光驱动电流调制,因此不需要用于调制激光器的驱动电流的高级电子装置。 这减少了确定距离所需的技术工作。

    PORTABLE HYBRID STORAGE MEDIUM
    10.
    发明申请
    PORTABLE HYBRID STORAGE MEDIUM 审中-公开
    便携式混合储存媒体

    公开(公告)号:US20090059776A1

    公开(公告)日:2009-03-05

    申请号:US11718243

    申请日:2005-10-31

    IPC分类号: G11B7/00

    摘要: The present invention relates to providing a portable storage medium (10,20) and a stamping unit (70) for producing such a portable storage medium (10,20), for enabling reading data at a high data rate and writing data. The portable storage medium (10,20) for storing data, is further insertable in a data reading and/or writing device, comprises a data portion (12,22), wherein the data portion (12,22) comprises a first division comprising a group (32,418,54,64) of essentially parallel transversely separated first tracks (36,39,408), wherein said first tracks (36,39,408) have a first format, and a second division comprising a second track (33,52,62) of a second format, wherein the group (32,418,54,64) of essentially parallel transversely separated first tracks (36,39,408) has a parallel format, so as to enable parallel reading of content at a high data rate.

    摘要翻译: 本发明涉及提供便携式存储介质(10,20)和用于产生这种便携式存储介质(10,20)的冲压单元(70),用于使得能够以高数据速率读取数据并写入数据。 用于存储数据的便携式存储介质(10,20)进一步可插入到数据读取和/或写入装置中,包括数据部分(12,22),其中数据部分(12,22)包括第一分区,包括 基本上平行的横向分离的第一轨道(36,39,408)的组(32,418,54,64),其中所述第一轨道(36,39,408)具有第一格式,以及包括第二轨道(33,52,62)的第二划分 ),其中基本上平行的横向分离的第一轨道(36,39,408)的组(32,418,54,64)具有并行格式,以便能够以高数据速率并行读取内容。