Alignment system
    21.
    发明授权
    Alignment system 失效
    校准系统

    公开(公告)号:US6018395A

    公开(公告)日:2000-01-25

    申请号:US766928

    申请日:1996-12-16

    IPC分类号: G03F9/00 G01B11/00

    CPC分类号: G03F9/70

    摘要: An alignment method useable with an original having a pattern and a substrate having a surface area on which the pattern of the original is printed. The alignment method comprises detecting plural marks, calculating plural times, the amount of rotational deviation on the basis of different combinations of marks, calculating the quantity of rotational correction of the original and the substrate by using the computed rotational deviations, and aligning on the basis of the calculated quantity of the rotational deviation.

    摘要翻译: 可用于具有图案的原稿的对准方法和具有印刷原稿图案的表面积的基板。 对准方法包括基于不同的标记组合来检测多个标记,多次计算旋转偏差量,通过使用计算出的旋转偏差来计算原件和基板的旋转校正量,并基于 的计算量的旋转偏差。

    Position detecting method and apparatus
    25.
    发明授权
    Position detecting method and apparatus 失效
    位置检测方法和装置

    公开(公告)号:US5200800A

    公开(公告)日:1993-04-06

    申请号:US892732

    申请日:1992-05-29

    IPC分类号: G03F9/00

    CPC分类号: G03F9/7076

    摘要: A method of detecting a position of a substrate having an alignment mark includes the steps of projecting a radiation beam from an optical head to the alignment mark such that the alignment mark produces a signal beam on the basis of which the position of the substrate is detected, forming a reference mark on the substrate at a position different from that of the alignment mark, projecting a radiation beam from the optical head to the reference mark, such that the reference mark produces a reference beam, detecting the relative positional deviation of the optical head relative to the reference mark on the basis of the produced reference beam, and adjusting the relative position of the optical head and the alignment mark on the basis of the detected relative positional deviation and, after the adjustment, detecting the position of the substrate on the basis of the produced signal beam.

    摘要翻译: 检测具有对准标记的基板的位置的方法包括以下步骤:将来自光学头的辐射束投射到对准标记,使得对准标记产生信号光束,基于该信号光束检测基板的位置 在与所述对准标记不同的位置的基板上形成参考标记,将来自所述光学头的辐射束投射到所述基准标记,使得所述基准标记产生参考光束,检测所述光学器件的相对位置偏差 基于所生成的参考光束相对于参考标记的头部,并且基于检测到的相对位置偏差来调整光学头和对准标记的相对位置,并且在调整之后,检测基板的位置 产生信号光束的基础。

    Position detecting method and apparatus
    26.
    发明授权
    Position detecting method and apparatus 失效
    位置检测方法和装置

    公开(公告)号:US5148037A

    公开(公告)日:1992-09-15

    申请号:US675059

    申请日:1991-03-26

    CPC分类号: G03F9/7049

    摘要: A method and apparatus for detecting a positional relationship between first and second objects is disclosed, which includes a light source for projecting light to the first and second objects, a photodetecting system for detecting light from one of the first and second objects irradiated with the light from the light source, the detecting system being operable to detect first light whose position of incidence upon a predetermined plane is dependent upon the positional relationship of the first and second objects in a direction along the interval therebetween and in a direction perpendicular to the interval, second light whose position of incidence upon the predetermined plane is dependent upon the positional relationship of the first and second objects in the direction of the interval therebetween, and third light whose position of incidence upon the predetermined plane is independent of the positional relationship of the first and second objects in both the direction of the interval and the direction perpendicular to the interval, and a positional relationship detecting system for detecting the positional relationship of the first and second objects in the direction of the interval and the direction perpendicular to the interval, on the basis of the detection by the photodetecting system.

    Eye examining apparatus
    27.
    发明授权
    Eye examining apparatus 失效
    眼睛检查装置

    公开(公告)号:US4887897A

    公开(公告)日:1989-12-19

    申请号:US306225

    申请日:1989-02-03

    IPC分类号: A61B3/02 A61B3/103

    CPC分类号: A61B3/103

    摘要: An eye examining apparatus has an eye examining lens of an elastic material opposed to an eye to be examined, and control means for causing the marginal portion of the eye examining lens to protrude or sink to thereby change the lens surface of the eye examining lens.

    摘要翻译: 眼睛检查装置具有与要检查的眼睛相对的弹性材料的眼睛检查透镜,以及用于使眼睛检查透镜的边缘部分突出或下沉从而改变眼睛检查透镜的透镜表面的控制装置。

    Device for measuring light incident on an optical system
    29.
    发明授权
    Device for measuring light incident on an optical system 失效
    用于测量入射在光学系统上的光的装置

    公开(公告)号:US4595290A

    公开(公告)日:1986-06-17

    申请号:US283233

    申请日:1981-07-14

    IPC分类号: G02B27/10 G03B7/099 G01J1/42

    摘要: This invention provides a device for measuring light incident on an optical system. This device includes an optical system defining an optical path, a beam splitter and a photo detector. The beam splitter has a relief type diffraction lattice having a plurality of semireflecting surfaces periodically arranged and included in a transparent body. The diffraction lattice is arranged to split a portion of the incident light by its effect of reflection/diffraction and its beam splitting efficiency having a predetermined distribution within the lattice area. The diffracted light from the diffraction lattice is directed to the photo detector.

    摘要翻译: 本发明提供一种用于测量入射在光学系统上的光的装置。 该装置包括限定光路的光学系统,分束器和光电检测器。 分束器具有浮雕型衍射晶格,其具有周期性排列并包含在透明体中的多个半反射面。 衍射栅格被布置成通过其反射/衍射效应将入射光的一部分分离,并且其分光效率在晶格区域内具有预定的分布。 来自衍射晶格的衍射光被引导到光电检测器。