Very high speed photodetector system using a PIN photodiode array for position sensing
    1.
    发明授权
    Very high speed photodetector system using a PIN photodiode array for position sensing 有权
    使用PIN光电二极管阵列进行位置检测的超高速光电探测器系统

    公开(公告)号:US06831263B2

    公开(公告)日:2004-12-14

    申请号:US10163204

    申请日:2002-06-04

    IPC分类号: G01J142

    摘要: An apparatus for detecting a centroid of a spot produced by electromagnetic radiation, e.g., optic radiation, using an array of PIN photodiodes serving as photodetectors and being organized in columns and in rows. Vertical connections are used to interconnect the PIN photodiodes in the columns in accordance with a first pattern that interconnects two or more adjacent columns. Horizontal connections are used to interconnect PIN photodiodes in the rows in accordance with a second pattern that interconnects two or more adjacent rows. The first and second patterns of interconnections can include just two adjacent columns and two adjacent rows, respectively and form a checkerboard interconnect pattern. The interconnections are made such that there are no anode connections between the PIN photodiodes in the rows and columns. The apparatus has a processing circuitry for rapidly deriving an X-extent of the centroid from current signals obtained from the columns and a Y-extent of the centroid from current signals obtained from the rows.

    摘要翻译: 用于使用用作光电检测器的PIN光电二极管阵列并以列和行组织的方式来检测由电磁辐射(例如光学辐射)产生的光点的质心的装置。 垂直连接用于根据互连两个或多个相邻列的第一图案来互连列中的PIN光电二极管。 水平连接用于根据互连两个或多个相邻行的第二图案来互连行中的PIN光电二极管。 第一和第二互连图案可以分别仅包括两个相邻的列和两个相邻的行,并且形成棋盘互连图案。 进行互连使得行和列之间的PIN光电二极管之间没有阳极连接。 该装置具有处理电路,用于从根据从行获得的电流信号从当前信号和质心的Y范围快速得出质心的X范围。

    Very high speed photodetector system using a PIN photodiode array for position sensing
    3.
    发明授权
    Very high speed photodetector system using a PIN photodiode array for position sensing 失效
    使用PIN光电二极管阵列进行位置检测的超高速光电探测器系统

    公开(公告)号:US06952003B2

    公开(公告)日:2005-10-04

    申请号:US10913974

    申请日:2004-08-05

    摘要: An apparatus for detecting a centroid of a spot produced by electromagnetic radiation, e.g., optic radiation, using an array of PIN photodiodes serving as photodetectors and being organized in columns and in rows. Vertical connections are used to interconnect the PIN photodiodes in the columns in accordance with a first pattern that interconnects two or more adjacent columns. Horizontal connections are used to interconnect PIN photodiodes in the rows in accordance with a second pattern that interconnects two or more adjacent rows. The first and second patterns of interconnections can include just two adjacent columns and two adjacent rows, respectively and form a checkerboard interconnect pattern. The interconnections are made such that there are no anode connections between the PIN photodiodes in the rows and columns. The apparatus has a processing circuitry for rapidly deriving an X-extent of the centroid from current signals obtained from the columns and a Y-extent of the centroid from current signals obtained from the rows.

    摘要翻译: 用于使用用作光电检测器的PIN光电二极管阵列并以列和行组织的方式来检测由电磁辐射(例如光学辐射)产生的光点的质心的装置。 垂直连接用于根据互连两个或多个相邻列的第一图案来互连列中的PIN光电二极管。 水平连接用于根据互连两个或多个相邻行的第二图案来互连行中的PIN光电二极管。 第一和第二互连图案可以分别仅包括两个相邻的列和两个相邻的行,并且形成棋盘互连图案。 进行互连使得行和列之间的PIN光电二极管之间没有阳极连接。 该装置具有处理电路,用于从根据从行获得的电流信号从当前信号和质心的Y范围快速得出质心的X范围。