公开(公告)号：US4564861A

公开(公告)日：1986-01-14

申请号：US507248

申请日：1983-06-23

申请人： Kazuhiro Hishinuma ,  Akihiro Ohga

发明人： Kazuhiro Hishinuma ,  Akihiro Ohga

IPC分类号： G01N23/04 ,  A61B6/00 ,  G01T1/00 ,  G01T1/29 ,  G03B42/02 ,  G06T1/00 ,  H04N5/32

CPC分类号： G01T1/2014 ,  G01T1/2012

摘要： Markers having a shape defining an edge portion of a radiation image area are recorded together with radiation images in stimulable phosphor sheets in a position fixed with respect to the radiation images. The stimulable phosphor sheets are scanned with stimulating rays, and the edge portion defined by the markers is photoelectrically detected. Read-out of the image signals of the radiation images is conducted by using the detected signal of the edge portion as the read-out synchronizing signal, thereby to obtain the image signals corrected for deviations in position among the radiation images.

摘要翻译： 具有限定辐射图像区域的边缘部分的形状的标记物与可激发的磷光体片材中的辐射图像一起被记录在相对于辐射图像固定的位置。 用刺激光线扫描可刺激的荧光片，并且由标记物限定的边缘部分被光电检测。 通过使用边缘部分的检测信号作为读出同步信号来读出放射线图像的图像信号，从而获得针对放射线图像之间的位置偏差校正的图像信号。

公开(公告)号：US4683377A

公开(公告)日：1987-07-28

申请号：US511026

申请日：1983-07-05

申请人： Kazuhiro Hishinuma ,  Akihiro Ohga

发明人： Kazuhiro Hishinuma ,  Akihiro Ohga

IPC分类号： A61B6/00 ,  G01N23/04 ,  G01T1/29 ,  G03B41/00 ,  G03B42/02 ,  G06T1/00 ,  G03C5/16

CPC分类号： G03B42/02 ,  G01T1/2012 ,  G01T1/2014

摘要： Markers for providing reference points or lines are recorded together with radiation images in stimulable phosphor sheets in a position fixed with respect to the radiation images. The stimulable phosphor sheets are scanned with stimulating rays, and the spatial coordinates of the reference points or lines are detected from light emitted from the stimulable phosphor sheets. The stimulable phosphor sheets are moved with respect to scanning lines of stimulating rays based on the detected spatial coordinates to adjust the spatial coordinates to a spatial coordinate predetermined with respect to the scanning lines of stimulating rays. Then, the radiation images are read out.

摘要翻译： 用于提供参考点或线的标记与辐射图像一起被记录在相对于辐射图像固定的位置的可刺激的磷光体片中。 用刺激光线扫描可刺激的荧光体片，并且从可刺激的磷光体片发出的光中检测参考点或线的空间坐标。 基于检测到的空间坐标，可刺激的荧光体片相对于刺激射线的扫描线移动，以将空间坐标调整为相对于刺激射线的扫描线预定的空间坐标。 然后，读出放射线图像。

公开(公告)号：US4564760A

公开(公告)日：1986-01-14

申请号：US672683

申请日：1984-11-19

申请人： Masaru Noguchi ,  Kazuo Horikawa ,  Akihiro Ohga

发明人： Masaru Noguchi ,  Kazuo Horikawa ,  Akihiro Ohga

IPC分类号： G03B42/08 ,  G01T1/29 ,  G02B6/26 ,  H04N1/028 ,  G03G5/16

CPC分类号： G02B6/262 ,  G01T1/2014 ,  H04N1/028

摘要： A radiation image read-out apparatus comprises a stimulating ray optical system for exposing a stimulable phosphor carrying a radiation image stored therein to stimulating rays, a photodetector for detecting light emitted by the stimulable phosphor upon exposure to stimulating rays, and a light guide member for guiding the emitted light to the photodetector. A dichroic optical plane which selectively reflects either the stimulating rays or the light emitted by the stimulable phosphor and selectively passes the other is positioned in an optical path or the light guide member. The stimulating ray optical system is positioned so that the stimulating rays directly impinge upon the dichroic optical plane and come out of a light input face of the light guide member positioned close to the stimulable phosphor by being reflected by or passed through the dichroic optical plane.

摘要翻译： 辐射图像读出装置包括：刺激射线光学系统，用于使携带其中存储的放射线图像的刺激性荧光体曝光以刺激光线;光电检测器，用于在暴露于刺激光线时检测由可刺激磷光体发射的光;以及导光部件， 将发射的光引导到光电检测器。 选择性地反射刺激光线或由可激发荧光体发射的光并选择性地通过另一个的二向色光学平面位于光路或导光部件中。 刺激射线光学系统被定位成使得刺激光线直接照射在分色光学平面上，并且通过被二色性光学平面的反射或穿过二色性光学平面而被定位在靠近可刺激的荧光体的导光部件的光输入面。

公开(公告)号：US4054360A

公开(公告)日：1977-10-18

申请号：US653565

申请日：1976-01-29

申请人： Shigenori Oosaka ,  Akihiro Ohga

发明人： Shigenori Oosaka ,  Akihiro Ohga

IPC分类号： H04N3/02 ,  B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  G02B27/00 ,  H04N1/113 ,  G02B27/17

CPC分类号： G02B26/129 ,  G02B27/0031

摘要： An improved method and apparatus for removing the scanning error due to imperfect parallelism of a rotary polyhedral mirror is disclosed. An incident beam of light initially deflected by the rotary polyhedral mirror is directed along an optical path which brings it back into incidence on the same deflection point on the mirror. The double deflection causes the second reflected beam to travel a path which is vertically independent of the error in parallelism, while at the same time not interfering with the horizontal scanning of the second reflected beam.

摘要翻译： 公开了一种用于消除由于旋转多面体镜的不完全平行度引起的扫描误差的改进的方法和装置。 最初由旋转多面体反射镜偏转的入射光束沿着光路引导，该光路使其重新入射在反射镜上的相同偏转点上。 双重偏转导致第二反射光束行进垂直于平行度误差的路径，同时不干扰第二反射光束的水平扫描。

公开(公告)号：US4587420A

公开(公告)日：1986-05-06

申请号：US529777

申请日：1983-09-06

申请人： Masaru Noguchi ,  Akihiro Ohga

发明人： Masaru Noguchi ,  Akihiro Ohga

IPC分类号： G02B26/10 ,  G02B27/00 ,  H04N1/047 ,  H04N1/113 ,  H01J5/16

CPC分类号： H04N1/047 ,  G02B26/10 ,  G02B27/0025

摘要： In a light beam scanning device, first and second light spots scan a scanning plane and a planar grating pattern, respectively. The grating pattern has alternating transparent and opaque parts extending parallel to one another and is rotated by a predetermined angle in its own plane. A speed of scanning the grating pattern by the second light spot is detected to correct irregularities in a speed of scanning the scanning plane with the first light spot. Further, the scanning length on the scanning plane can be finely adjusted by the rotation of the grating pattern.

摘要翻译： 在光束扫描装置中，第一和第二光点分别扫描扫描平面和平面光栅图案。 光栅图案具有交替的透明和不透明部分，彼此平行延伸并且在其自身平面中旋转预定角度。 检测由第二光点扫描光栅图案的速度，以校正以第一光点扫描扫描平面的速度的不规则性。 此外，可以通过光栅图案的旋转来微调扫描平面上的扫描长度。