公开(公告)号：US20200294220A1

公开(公告)日：2020-09-17

申请号：US16355419

申请日：2019-03-15

Applicant: Hitachi, Ltd.

Inventor： Maria Teresa GONZALEZ DIAZ ,  Dipanjan GHOSH ,  Adriano ARANTES ,  Michiko YOSHIDA ,  Jiro HASHIZUME ,  Chetan GUPTA ,  Phawis THAMMASORN

IPC: G06T7/00 ,  G06N20/20 ,  G06K9/62 ,  G06T7/73

Abstract: Example implementations described herein involve defect analysis for images received from a camera system, which can involve applying a first model configured to determine regions of interest of the object from the images, applying a second model configured to identify localized areas of the object based on the regions of interest on the images; and applying a third model configured to identify defects in the localized ones of the images.

公开(公告)号：US20160178506A1

公开(公告)日：2016-06-23

申请号：US14962334

申请日：2015-12-08

Applicant: Hitachi, Ltd.

Inventor： Jiro HASHIZUME ,  Kei TAKENAKA ,  Takanori AONO

IPC: G01N21/17

CPC classification number: G01N21/171 ,  G01N2021/1712

Abstract: The present invention includes: an excitation light source; a probe light source; a filter that mutually multiplexes a probe light emitted from the probe light source and an excitation light emitted from the excitation light source to a same optical axis; a condenser lens that focuses the excitation light and the probe light; a sample cell that stores a sample; a reflection member that is disposed on an inner wall of the sample cell and reflects the probe light; and a detector that detects the probe light reflected at the reflection member.

Abstract translation: 本发明包括：激发光源; 探测光源; 滤波器，其将从探测光源发射的探测光与从激发光源发射的激发光相互复用到相同的光轴; 聚焦透镜，聚焦激发光和探测光; 存储样品的样品池; 反射构件，其设置在所述样品池的内壁上并反射所述探测光; 以及检测器，其检测在反射构件处反射的探测光。

公开(公告)号：US20160086628A1

公开(公告)日：2016-03-24

申请号：US14890970

申请日：2013-05-22

Applicant: Hitachi, Ltd.

Inventor： Jiro HASHIZUME ,  Kazuyoshi YAMAZAKI ,  Seiichi KATOU ,  Katsuhiko KIMURA

IPC: G11B7/1353 ,  G02B26/08

CPC classification number: G11B7/1353 ,  G02B26/08 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/08564 ,  G11B7/1381

Abstract: Diffracted light generated by a recording medium in reproduction is largely blocked by a spatial filter because of a position shift of the recording medium. Thus, the light amount of the diffracted light converged onto an optical detector is reduced and a satisfactory level of a reproducing signal cannot be obtained. In addition, in recording, it is necessary to fix the position of the spatial filter in rays for removing unnecessary frequency components or the like in a light beam emitted from a light source. In actuators having at least two spatial filters, one spatial filter is mounted on an actuator driven along two or more axes and moves independently of another spatial filter, and the other spatial filter is fixed to a common one-axis actuator. Switching of the positions of the spatial filters is performed by the common one-axis actuator.

Abstract translation: 由于记录介质的位置偏移，由再现中的记录介质产生的衍射光被空间滤波器大大阻挡。 因此，聚光到光学检测器上的衍射光的光量减少，并且不能获得满意的再现信号电平。 此外，在记录中，需要用光线固定空间滤波器的位置，以消除从光源发射的光束中不必要的频率分量等。 在具有至少两个空间滤波器的致动器中，一个空间滤波器安装在沿着两个或多个轴驱动的致动器上，并独立于另一个空间滤波器移动，另一个空间滤波器被固定到公共的单轴致动器。 空间滤波器的位置的切换由公共单轴致动器执行。