OPTICAL ILLUMINATION APPARATUS FOR ILLUMINATING A SAMPLE WITH A LINE BEAM
    21.
    发明申请
    OPTICAL ILLUMINATION APPARATUS FOR ILLUMINATING A SAMPLE WITH A LINE BEAM 有权
    用于用线束照射样品的光学照明装置

    公开(公告)号:US20100288942A1

    公开(公告)日:2010-11-18

    申请号:US12743824

    申请日:2008-11-19

    IPC分类号: G01J1/58 H01J3/14 G02B27/09

    摘要: An optical system for illuminating a sample with a line beam comprises a light source (24), a beam shaper (30) for transforming the beam of light emitted by the light source into an intermediate astigmatic image and an imaging system for transforming the intermediate astigmatic image into a final astigmatic image and for illuminating the sample. The beam shaper provides different non-unity magnifications in a lateral plane and in a transversal plane, and comprises a toroidal entrance surface for implementing the angular magnification and angular reduction and a toroidal exit surface with finite radii of curvature. The invention enables the use of existing beam shaping apparatus, normally used to make a light output have a more circular cross section, in combination with the imaging system, in order to provide line beam illumination of a sample.

    摘要翻译: 用于用线束照射样品的光学系统包括光源(24),用于将由光源发射的光束变换成中间散光图像的光束整形器(30),以及用于转换中间像散的成像系统 图像变成最终的散光图像并照亮样品。 光束整形器在横向平面和横向平面中提供不同的非单位放大倍数,并且包括用于实现角放大率和角度减小的环形入射面和具有有限曲率半径的环形出射面。 本发明使得能够与成像系统结合使用通常用于使光输出具有更圆形截面的现有光束成形设备,以便提供样品的线束照明。

    BEAM SHAPER, OPTICAL SYSTEM AND METHODS USING THE SAME
    22.
    发明申请
    BEAM SHAPER, OPTICAL SYSTEM AND METHODS USING THE SAME 有权
    光束形状,光学系统和使用该光学系统的方法

    公开(公告)号:US20100264295A1

    公开(公告)日:2010-10-21

    申请号:US12743024

    申请日:2008-11-20

    IPC分类号: G02B27/44

    CPC分类号: G01N21/6458 G02B5/1833

    摘要: An optical beam shaper comprises a polarization-dependent phase adjustment member which applies a phase pattern of equal magnitude and opposite sign to two orthogonal polarization states. In a preferred embodiment the beamer shaper is a dif tractive element made of a birefringent material, such as a photo-polymerizable liquid crystal polymer frozen in a uniaxial alignment, said dif tractive element comprising a plurality of zones, each zone having a stepped thickness defining a plurality of steps. The beam shaper can be used to introduce astigmatism to a polarized light beam or to undo the astigmatism to a beam with an orthogonal polarization state. The beam shaper is advantageously used within a detection device, such as a fluorescence scanner.

    摘要翻译: 光束整形器包括偏振相关相位调整构件,其对两个正交偏振状态施加相等幅度和相反符号的相位图案。 在优选实施例中,光束整形器是由双折射材料制成的吸引元件,例如以单轴取向冷冻的光可聚合液晶聚合物,所述吸引元件包括多个区域,每个区域具有限定 多个步骤。 光束整形器可用于对偏振光束引入像散或者使具有正交偏振状态的光束的散光消除。 光束整形器有利地用在诸如荧光扫描仪的检测装置内。

    OPTICAL SCANNING DEVICE
    23.
    发明申请
    OPTICAL SCANNING DEVICE 审中-公开
    光学扫描装置

    公开(公告)号:US20090153841A1

    公开(公告)日:2009-06-18

    申请号:US11573947

    申请日:2005-08-15

    IPC分类号: G06K9/74

    摘要: An optical identifier (1) can be used as a Physical Unclonable Function for producing a speckle pattern, as a response, upon being challenged with a light beam, as a challenge. This property can be used for identification of the optical identifier or of an object attached thereto, for the authentication of an information carrier or for generation of transaction keys. Since the response obtained in response to given challenge is highly sensitive to the relative position of the optical identifier, light beam source and detector for the speckle pattern, this relative position has to be accurately adjusted to reliably obtain the same response to a given challenge. To this aim, an optical identifier is proposed having an alignment area (3) for splitting an incident beam into distinct beams (6, 7) which can be detected as alignment signals (10a, 10b, 10c, 10d) on a detector (8) and used for the monitoring and for the adjustment of said relative position.

    摘要翻译: 作为挑战,光学标识符(1)可以用作用于产生斑点图案作为响应的物理不可克隆功能,作为响应。 该属性可以用于识别光学标识符或附加到其上的对象,用于信息载体的认证或用于生成交易密钥。 由于响应于给定挑战而获得的响应对于光学标识符,用于散斑图案的光束源和检测器的相对位置高度敏感,所以必须精确地调整该相对位置以可靠地获得对给定挑战的相同响应。 为此目的,提出一种具有用于将入射光束分成不同光束(6,7)的对准区域(3)的光学识别器,其可以被检测为检测器(8)上的对准信号(10a,10b,10c,10d) )并用于监视和调整所述相对位置。

    Birefringent optical system
    24.
    发明授权
    Birefringent optical system 失效
    双折射光学系统

    公开(公告)号:US07440075B2

    公开(公告)日:2008-10-21

    申请号:US10599068

    申请日:2005-03-14

    IPC分类号: G02B27/12

    摘要: The invention relates to an optical system comprising a fluid chamber 1 and a birefringent part. The fluid chamber comprises first and second fluids 10, 12 having different indices of refraction, the interface between the fluids forming a meniscus 14. The birefringent part is capable of varying characteristics of a first radiation beam 3b and a second radiation beam 3c, the first and second radiation beams having different polarisations. Variation in the configuration of the meniscus causes variation in the characteristics of the first radiation beam and the second radiation beam. Variation in the configuration of the meniscus may be controlled by electrowetting.

    摘要翻译: 本发明涉及一种包括流体室1和双折射部分的光学系统。 流体室包括具有不同折射率的第一和第二流体10,12,形成弯液面14的流体之间的界面。 双折射部分能够改变第一辐射束3b和第二辐射束3c的特性,第一和第二辐射束具有不同的极化。 弯液面的构造的变化导致第一辐射束和第二辐射束的特性的变化。 弯液面的构型的变化可以通过电润湿来控制。

    Optical Scanning Device
    25.
    发明申请
    Optical Scanning Device 审中-公开
    光学扫描装置

    公开(公告)号:US20080186577A1

    公开(公告)日:2008-08-07

    申请号:US11816745

    申请日:2006-02-13

    申请人: Sjoerd Stallinga

    发明人: Sjoerd Stallinga

    IPC分类号: G02B5/18

    CPC分类号: G11B7/1353 G11B2007/0006

    摘要: An optical scanning device for scanning different formats of optical record carrier. The device includes a first radiation source (16), a second radiation source (70) and a third radiation source (72) arranged to emit radiation beams having a predetermined first, second and third, different, wavelength. The device further includes a redirector (15) for redirecting the second and third radiation beams. The redirector (15) includes a diffraction structure arranged to redirect the second radiation beam from the second input optical path (48) along the second output optical path (50) and to redirect the third radiation beam from the third input optical path along the third output optical path, so as to improve the colinearity of the second and third output optical paths with respect to a first output optical path of the redirector.

    摘要翻译: 一种用于扫描不同格式的光学记录载体的光学扫描装置。 该装置包括第一辐射源(16),第二辐射源(70)和第三辐射源(72),第三辐射源被布置成发射具有预定的第一,第二和第三不同波长的辐射束。 该装置还包括用于重定向第二和第三辐射束的重定向器(15)。 重定向器(15)包括衍射结构,其被布置成沿着第二输出光路(50)重定向来自第二输入光路(48)的第二辐射束,并且将来自第三输入光路的第三辐射束沿第三 输出光路,从而提高第二和第三输出光路相对于重定向器的第一输出光路的共线性。

    Birefringent Optical System
    26.
    发明申请
    Birefringent Optical System 失效
    双折射光学系统

    公开(公告)号:US20070273943A1

    公开(公告)日:2007-11-29

    申请号:US10599068

    申请日:2005-03-14

    IPC分类号: G02B27/12 G02F1/13 G03H1/22

    摘要: The invention relates to an optical system comprising a fluid chamber 1 and a birefringent part. The fluid chamber comprises first and second fluids 10, 12 having different indices of refraction, the interface between the fluids forming a meniscus 14. The birefringent part is capable of varying characteristics of a first radiation beam 3b and a second radiation beam 3c, the first and second radiation beams having different polarisations. Variation in the configuration of the meniscus causes variation in the characteristics of the first radiation beam and the second radiation beam. Variation in the configuration of the meniscus may be controlled by electrowetting.

    摘要翻译: 本发明涉及一种包括流体室1和双折射部分的光学系统。 流体室包括具有不同折射率的第一和第二流体10,12,形成弯液面14的流体之间的界面。 双折射部分能够改变第一辐射束3b和第二辐射束3c的特性,第一和第二辐射束具有不同的极化。 弯液面的构造的变化导致第一辐射束和第二辐射束的特性的变化。 弯液面的构型的变化可以通过电润湿来控制。

    Method and apparatus for detection of a speckle based physically unclonable function
    28.
    发明申请
    Method and apparatus for detection of a speckle based physically unclonable function 失效
    用于检测基于散斑的物理不可克隆功能的方法和装置

    公开(公告)号:US20070090312A1

    公开(公告)日:2007-04-26

    申请号:US10582383

    申请日:2004-11-24

    IPC分类号: G03C5/16

    CPC分类号: G02B27/48 H04L9/3278

    摘要: An optical arrangement of at least a coherent light source (1), a strongly scattering object (5) (the PUF), and a pixe-lated photo-detector (6), wherein the pixels are comparable in size with the bright and dark patches of the speckle pattern produced by coherent radiation traversing the scattering object (5). Quantitively, the pixel size should be roughly λ/NA, where λ is the wave-length, and (i) NA=a/z for free-space geometry, with a being the beam radius and z being the distance between the exit surface of the PUF (5) and the pixelated detector (6), or (ii) NA is the numerical aperture of a lens (7) in an imaging geometry. In a preferred embodiment of the invention, there are tentative requirements that the pixels should be at least smaller than ηmaxλNA and preferably larger than ηmaxλ/NA, where (in an exemplary embodiment) ηmax=5 and ηmin=0.05, say. It will be understood by a person skilled in the art that the present invention is concerned with the optical arrangement of the PUF (5) and the photo-detector (6), rather than the photo -detector (6) per se.

    摘要翻译: 至少相干光源(1),强散射物体(5)(PUF)和像素照片检测器(6)的光学布置,其中像素在尺寸上与明暗相当 通过穿过散射物体(5)的相干辐射产生的斑点图案的斑块。 数量上,像素尺寸应该大致为λ/ NA,其中λ是波长,和(i)NA =自由空间几何的a / z,其中光束半径和z是出射表面之间的距离 的PUF(5)和像素化检测器(6),或者(ii)NA是成像几何形状中的透镜(7)的数值孔径。 在本发明的优选实施例中,暂时要求像素应该至少小于λmaxλNA,并且优选地大于等于λmax /λ,其中( 在一个示例性实施例中),例如,max = 5和eta分钟= 0.05。 本领域技术人员将理解,本发明涉及PUF(5)和光电检测器(6)的光学布置,而不是光电检测器(6)本身。

    Optical pickup apparatus
    29.
    发明申请
    Optical pickup apparatus 审中-公开
    光拾取装置

    公开(公告)号:US20060114775A1

    公开(公告)日:2006-06-01

    申请号:US10538619

    申请日:2003-12-05

    申请人: Sjoerd Stallinga

    发明人: Sjoerd Stallinga

    IPC分类号: G11B7/00

    摘要: The invention relates to an optical pickup apparatus comprising a photodetector (302) which comprises a first segment (A) and a second segment (B), and an optical element (301) intended to receive an incident light beam, said optical element (301) comprising:—a first portion (L) comprising diffraction means for generating a first 0th diffraction order light beam (A(0)) on said first segment (A), and a first non-0th diffraction order light beam (B(+1)) on said second segment (B),—a second portion (R) comprising diffraction means for generating a second 0th diffraction order light beam (B(0)) on said second segment (B), and a second non-0th diffraction order light beam (A(+1)) on said first segment (A) Use: Optical pickup apparatus

    摘要翻译: 本发明涉及一种包括光电检测器(302)的光学拾取装置,该光检测器包括第一段(A)和第二段(B),以及用于接收入射光束的光学元件(301),所述光学元件 )包括:第一部分(L),包括用于在所述第一段(A)上产生第一第0衍射级光束(A(0))的衍射装置,以及第一非第0衍射级光束(B(+ 1)), - 第二部分(R),包括用于在所述第二部分(B)上产生第二第0衍射级光束(B(0))的衍射装置,以及第二非零部分 所述第一段(A)上的衍射级光束(A(+1))使用:光学拾取装置

    Tracking system and method
    30.
    发明申请
    Tracking system and method 失效
    跟踪系统和方法

    公开(公告)号:US20050265153A1

    公开(公告)日:2005-12-01

    申请号:US10525135

    申请日:2003-08-05

    摘要: Tracking system for guiding an optical beam on tracks on an optical disc, said tracking system comprising a photodetector (A1, A2) for detecting optical beams derived from said optical beam, said photodetector generating a first output signal (A) and a second output signal (B), said tracking system comprising first processing means for generating a first differential signal (PP(DC)) corresponding to the low-frequency part of a difference between said first and second output signals. The tracking system comprises second processing means for generating a tracking error signal (PP(AC/DC)) defined by the addition of said first differential signal (PP(DC)) to a second differential signal (PP′(AC)), said second differential signal corresponding to a fraction of the difference in amplitude of the high-frequency components of said first and second output signals. Use: Optical disc player/writer.

    摘要翻译: 用于在光盘上的轨道上引导光束的跟踪系统,所述跟踪系统包括用于检测从所述光束导出的光束的光电检测器(A1,A2),所述光电检测器产生第一输出信号(A)和第二输出信号 (B),所述跟踪系统包括用于产生与所述第一和第二输出信号之间的差的低频部分相对应的第一差分信号(PP(DC))的第一处理装置。 跟踪系统包括第二处理装置,用于产生通过将第一差分信号(PP(DC))加到第二差分信号(PP'(AC))而定义的跟踪误差信号(PP(AC / DC)), 第二差分信号对应于所述第一和第二输出信号的高频分量的振幅差的一部分。 使用:光盘播放器/写入器。