Optical detection apparatus for chemical analyses of small volumes of
samples
    1.
    发明授权
    Optical detection apparatus for chemical analyses of small volumes of samples 有权
    用于小批量样品化学分析的光学检测装置

    公开(公告)号:US6084683A

    公开(公告)日:2000-07-04

    申请号:US194523

    申请日:1998-11-25

    IPC分类号: G01N21/64 G01N21/03

    CPC分类号: G01N21/03 G01N2021/0346

    摘要: Optical detection apparatus for chemical analyses of small volumes of samples has light sources (21) to emit induction light, a measuring cell (7) for the sample, photoelectric sensing elements (22) to receive light coming form the sample in the measuring cell (7), as well as beam-conducting means for the induction light or the light from the sample. In the apparatus, several essentially planar, laminar components (2-7) are arranged in a sandwich structure, whereby the components (2-7) contain the light sources (21), the measuring cell (7), the photoelectric sensing elements (22), and also the beam conducting means.

    摘要翻译: PCT No.PCT / EP97 / 02745 Sec。 371日期:1998年11月25日 102(e)1998年11月25日日期PCT提交1997年5月27日PCT公布。 WO97 / 45718 PCT公开号 日期1997年12月4日用于小体积样品的化学分析的光学检测装置具有发射感光的光源(21),用于样品的测量单元(7),用于接收来自样品的光的光电感测元件(22) 在测量单元(7)中,以及用于感应光或来自样品的光的光束传导装置。 在该设备中,几个基本上平面的层状部件(2-7)被布置成夹层结构,由此部件(2-7)包含光源(21),测量单元(7),光电感测元件 22),以及光束传导装置。

    Optical detection system, device, and method utilizing optical matching
    2.
    发明申请
    Optical detection system, device, and method utilizing optical matching 审中-公开
    光学检测系统,设备和利用光学匹配的方法

    公开(公告)号:US20050168445A1

    公开(公告)日:2005-08-04

    申请号:US11089884

    申请日:2005-03-25

    IPC分类号: G06F3/03 G06F3/033 G09G5/08

    CPC分类号: G06F3/0317

    摘要: An optical detection system and method detects movement of an optical pointing device in a data processing environment. The system works with any surface than can diffusely scatter a collimated beam from a coherent light source. Specifically, the system comprises a coherent light source and an optical sensing assembly. The optical sensing assembly comprises a plurality of photosensor arrays and a plurality of optical elements. Each photosensor array includes pixels of a particular size and shape. Each optical element has an artificially limited aperture and is associated, through optical matching, with a respective photosensor array. The coherent light source generates a collimated beam that is diffusely reflected off of the surface. The optical sensing assembly receives the diffusely reflected, or scattered, collimated beam and passes it through the artificially limited apertures of the optical elements to the associated corresponding photosensor array. Passing the scattered light through the optical elements generates speckle images that appear on the pixels of the photosensor arrays. Based on the pixel shape, a pixel value associated with the speckle image provides a speckle image data signal. When there is translation of the pointing device, a new set of speckle images, each reassembling to a translated version of the previous speckle image, are generated and another speckle image data signal is generated. The new and the previous speckle image data signals are then used in a motion detection analysis to determine the points of the two data signals that give a displacement value.

    摘要翻译: 光学检测系统和方法检测光学指向设备在数据处理环境中的移动。 该系统可以与任何表面一起工作,可以从相干光源漫射散射准直光束。 具体地,该系统包括相干光源和光学感测组件。 光学传感组件包括多个光电传感器阵列和多个光学元件。 每个光电传感器阵列包括特定尺寸和形状的像素。 每个光学元件具有人为有限的孔径,并且通过光学匹配与相应的光电传感器阵列相关联。 相干光源产生从表面漫反射的准直光束。 光学感测组件接收漫反射或散射的准直光束并将其通过光学元件的人为限制的孔径传递到相关联的相应的光电传感器阵列。 将散射的光通过光学元件产生出现在光电传感器阵列像素上的斑点图像。 基于像素形状,与斑点图像相关联的像素值提供散斑图像数据信号。 当存在指示设备的平移时,产生一组新的散斑图像,每个重新组合到先前散斑图像的翻译版本,并产生另一个斑点图像数据信号。 然后将新的和先前的斑点图像数据信号用于运动检测分析中以确定给出位移值的两个数据信号的点。

    Optical detection arrangement for small volume chemical analysis of
fluid samples
    3.
    发明授权
    Optical detection arrangement for small volume chemical analysis of fluid samples 失效
    流体样品小体积化学分析光学检测装置

    公开(公告)号:US5636017A

    公开(公告)日:1997-06-03

    申请号:US212521

    申请日:1994-03-11

    摘要: An optical detection arrangement for small volume chemical analysis comprises a light source (22), a capillary tube (23) and a photoelectric detector (24). The arrangement of the light source (22) relative to the capillary tube (23) is such, that probing light (P) emitted from the light source (22) strikes a sample (S) to be analyzed, which is flowing through the capillary tube (23), whereas the photoelectric detector (24) is arranged relative to the capillary tube (23) such, that it is capable of detecting light comming from the capillary tube. The photoelectric detector (24) is connected with an evaluation electronics. Between the light source (22) and the capillary tube (23)the probing light (P) is guided essentially in a guiding means (26) which is made of a material having a refractive index gradient about perpendicular to the direction of propagation of the probing light (P), and which is connected to the capillary tube (23) such that probing light (P) exiting the guiding material (26) strikes the capillary tube (23). Preferably light emitting diodes (LEDs) or laser diodes are used as light source (22).

    摘要翻译: 用于小容量化学分析的光学检测装置包括光源(22),毛细管(23)和光电检测器(24)。 光源(22)相对于毛细管(23)的布置是这样的,即从光源(22)发射的探测光(P)撞击待分析的样品(S),该​​样品(S)流过毛细管 管(23),而光电检测器(24)相对于毛细管(23)布置,使得其能够检测来自毛细管的光。 光电检测器(24)与评估电路连接。 在光源(22)和毛细管(23)之间,探测光(P)基本上在引导装置(26)中引导,该引导装置(26)由具有垂直于 探测光(P),并且其连接到毛细管(23),使得离开引导材料(26)的探测光(P)撞击毛细管(23)。 优选使用发光二极管(LED)或激光二极管作为光源(22)。