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1. 发明授权

US4851679A Radiation image recording and read-out apparatus 失效
标题翻译：辐射图像记录和读出装置
公开(公告)号：US4851679A
公开(公告)日：1989-07-25
申请号：US037119
申请日：1987-04-13
申请人： Kaoru Tamura , Toshitaka Aagano
发明人： Kaoru Tamura , Toshitaka Aagano
IPC分类号： G01T1/29 , G03B42/02
CPC分类号： G01T1/2014 , G01T1/2016 , G03B42/021
摘要： A radiation image recording and read-out apparatus comprises an image recording section for recording a radiation image of an object on a stimulable phosphor sheet, a read-out section for scanning the stimulable phosphor sheet with stimulating and for detecting the light emitted therefrom upon stimulation, and an erasing section for releasing the radiation energy remaining in the stimulable phosphor sheet. The stimulable phosphor sheets are circulated through these sections by conveyer belts and reused for image recording. A shutter is positioned between the read-out section and the erasing section to prevent the erasing light from entering the read-out section at least when read-out is conducted in the read-out section.
摘要翻译：放射线图像记录和读出装置包括：图像记录部分，用于在可刺激的荧光片上记录物体的放射线图像;读出部分，用于通过刺激来扫描可刺激的荧光片，并用于在刺激时检测从其发射的光以及用于释放残留在可刺激的荧光体片中的辐射能的擦除部分。可刺激的荧光片通过输送带循环通过这些部分，并重新用于图像记录。快门位于读出部分和擦除部分之间，以至少在读出部分中进行读出时，防止擦除光进入读出部分。

2. 发明授权

US4680473A Radiation image read-out apparatus including selective stimulating ray reflection preventing means 失效
标题翻译：包括选择性刺激射线反射防止装置的放射图像读出装置
公开(公告)号：US4680473A
公开(公告)日：1987-07-14
申请号：US710255
申请日：1985-03-11
申请人： Terumi Matsuda , Toshitaka Aagano , Junji Miyahara , Nobuyoshi Nakajima , Shigeru Saotome
发明人： Terumi Matsuda , Toshitaka Aagano , Junji Miyahara , Nobuyoshi Nakajima , Shigeru Saotome
IPC分类号： G01T1/29 , G01T1/105
CPC分类号： G01T1/2014
摘要： A radiation image read-out apparatus comprises an optical system for scanning a stimulable phosphor sheet carrying a radiation image stored therein by stimulating rays, a light guide member for guiding light emitted by the stimulable phosphor sheet upon exposure to stimulating rays, a light guiding mirror for reflecting the emitted light to the light guide member, and a photoelectric converter for detecting the light guided by the light guide member. The light guiding mirror is provided with a reflection plane which reflects the light emitted by the stimulable phosphor sheet and which does not reflect stimulating rays. Or, a filter for absorbing the stimulating rays reflected by the stimulable phosphor sheet and transmitting the light emitted by the stimulable phosphor sheet is positioned between the scanned portion of the stimulable phosphor sheet and the light guiding mirror.
摘要翻译：放射线图像读出装置包括：光学系统，用于通过刺激光线扫描携带其中存储的放射线图像的可刺激的荧光体片;导光部件，用于在暴露于刺激光线时引导由可刺激的荧光体片发射的光;导光镜用于将发射的光反射到导光构件，以及光电转换器，用于检测由导光构件引导的光。导光镜设置有反射由可刺激的荧光体片发射的光并且不反射刺激光线的反射平面。或者，用于吸收由可刺激的荧光体片反射的刺激光线并透射由可刺激的荧光体片发射的光的滤光器位于可刺激的荧光体片的扫描部分和导光镜之间。

3. 发明授权

US4816676A Radiation image recording and read-out apparatus including radiation stop and scan area control means 失效
标题翻译：包括放射线停止和扫描区域控制装置的辐射图像记录和读出装置
公开(公告)号：US4816676A
公开(公告)日：1989-03-28
申请号：US661755
申请日：1984-10-17
申请人： Toshitaka Aagano
发明人： Toshitaka Aagano
IPC分类号： G03B42/02 , G06T1/00 , H04N5/30 , G01T1/105
CPC分类号： G03B42/02 , G03B42/021
摘要： A radiation image recording and read-out apparatus comprises an image recording section for recording a radiation image of an object on a stimulable phosphor sheet, a read-out section for scanning the stimulable phosphor sheet by stimulating rays and for detecting the light emitted thereby upon stimulation, and an erasing section for releasing the radiation energy remaining on the stimulable phosphor sheet. The stimulable phosphor sheets are circulated through these sections and reused for image recording. A radiation stop device is positioned at the image recording section for defining the radiation exposure area on the stimulable phosphor sheet. Information on the radiation exposure area is stored in a storage device for each stimulable phosphor sheet. On the basis of this information, the area of scanning by the stimulating rays in the read-out section is controlled so that the scanning is conducted approximately over the radiation exposure area.
摘要翻译：放射线图像记录和读出装置包括：图像记录部分，用于在可刺激的荧光片上记录物体的放射线图像，读出部分，用于通过刺激光线扫描可刺激的荧光片，并且用于检测由此发射的光刺激和用于释放残留在可刺激的荧光体片上的辐射能的擦除部分。可刺激的荧光片通过这些部分循环并重新用于图像记录。放射线停止装置位于图像记录部分，用于限定可刺激的荧光体片上的辐射照射区域。关于辐射照射区域的信息被存储在每个可刺激的荧光体片材的存储装置中。基于该信息，控制通过读出部分中的刺激光线的扫描区域，使得扫描大致在辐射曝光区域上进行。

4. 发明授权

US4717241A Light deflection device 失效
标题翻译：光偏转装置
公开(公告)号：US4717241A
公开(公告)日：1988-01-05
申请号：US743376
申请日：1985-06-11
申请人： Toshitaka Aagano
发明人： Toshitaka Aagano
IPC分类号： G02B26/10 , G02B7/182 , G02B26/08 , H04N1/113 , G02B7/18 , G02B5/08 , G02B27/10
CPC分类号： G02B7/1825 , G02B26/0816
摘要： A light deflection device is comprised of a cantilever member, a light deflecting element provided near the fixed end of the cantilever member, and a means of imparting deflection to the free end of the cantilever member, so that the angle of inclination of the light deflecting element, and hence the angle of deflection of the light, can be set and controlled with very high precision by the controlled deflection of the cantilever member by said means.
摘要翻译：光偏转装置包括悬臂构件，设置在悬臂构件的固定端附近的光偏转元件和向悬臂构件的自由端施加偏转的装置，使得偏转光的倾斜角元件，因此光的偏转角度可以通过所述装置的悬臂构件的可控偏转以非常高的精度来设定和控制。

5. 发明授权

US4689690A Synchronizing signal generating circuit 失效
标题翻译：同步信号发生电路
公开(公告)号：US4689690A
公开(公告)日：1987-08-25
申请号：US647954
申请日：1984-09-06
申请人： Toshitaka Aagano
发明人： Toshitaka Aagano
IPC分类号： H04N1/36 , H04N1/053 , H04N1/113 , H04N1/12
CPC分类号： H04N1/1295 , H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04775
摘要： A synchronizing signal generating circuit for timing the image read-out or recording conducted by scanning a recording medium by a light beam comprises two photodetectors positioned at arbitrary points on a main scanning line for detecting the light beam and generating a first pulse signal and a second pulse signal. The circuit is also provided with a first signal generator for changing the period of a pulse signal output thereby in accordance with an input signal, and a second signal generator which receives the pulse signal output by the first signal generator and the first and second pulse signals output by the photodetectors. The second signal generator counts the number of pulses input by the first signal generator during the scanning from when the first pulse signal is input to when the second pulse signal is input, compares the count with a standard set value, and generates a signal corresponding to a difference therebetween. The signal thus generated is input to the first signal generator, thereby controlling so that a pulse signal consisting of pulses in a number corresponding to the standard set value is output as a synchronizing signal.
摘要翻译：用于对通过光束扫描记录介质进行的图像读出或记录定时的同步信号发生电路包括位于主扫描线上任意点的两个光电检测器，用于检测光束并产生第一脉冲信号，脉冲信号。该电路还设置有第一信号发生器，用于根据输入信号改变脉冲信号输出的周期;以及第二信号发生器，其接收由第一信号发生器输出的脉冲信号和第一和第二脉冲信号由光电检测器输出。第二信号发生器对从第一脉冲信号输入到第二脉冲信号输入时的扫描期间由第一信号发生器输入的脉冲数进行计数，将该计数与标准设定值进行比较，并生成对应于两者之间的区别。由此产生的信号被输入到第一信号发生器，从而进行控制，使得由与标准设定值对应的数字组成的脉冲信号作为同步信号输出。

6. 发明授权

US4687937A Residual image erasure control using photomultiplier bleeder resistor voltage 失效
标题翻译：使用光电倍增管泄压电阻的残留图像擦除控制
公开(公告)号：US4687937A
公开(公告)日：1987-08-18
申请号：US741337
申请日：1985-06-05
申请人： Toshitaka Aagano , Yoshimi Takasaki
发明人： Toshitaka Aagano , Yoshimi Takasaki
IPC分类号： G03B42/02 , A61B6/00 , G01T1/29 , H04N1/04 , G01T1/105
CPC分类号： G01T1/2016
摘要： In a radiation image recording and reproducing system using a stimulable phosphor sheet, a voltage generated at a bleeder resistor of a photomultiplier for conducting image read-out is detected at the step of radiation image read-out at least for the stimulable phosphor sheet or a portion thereof where the level of X-ray exposure amount is higher than a predetermined level, and the exposure amount of erasing light is controlled on the basis of the detected voltage. Or, the erasing light exposure amount is controlled on the basis of an output current of the photomultiplier when the output current is equal to or smaller than a predetermined value when is smaller than a saturated value of the output current, and the bleeder resistor voltage of the photomultiplier is detected and the erasing light exposure amount is controlled on the basis of the detected voltage when the output current of the photomultiplier is larger than the predetermined value.
摘要翻译：在使用可刺激的荧光体片的放射线图像记录和再现系统中，在用于进行图像读出的光电倍增器的放电电阻器处产生的电压在至少对于可刺激的荧光体片材或其中X射线曝光量的水平高于预定水平，并且基于检测到的电压来控制擦除光的曝光量。或者，当小于输出电流的饱和值时，当输出电流等于或小于预定值时，基于光电倍增管的输出电流来控制擦除曝光量，并且泄放电阻器电压当光电倍增器的输出电流大于预定值时，检测光电倍增管并基于检测电压来控制擦除光曝光量。

7. 发明授权

US4582988A Radiation image read-out apparatus 失效
标题翻译：辐射图像读出装置
公开(公告)号：US4582988A
公开(公告)日：1986-04-15
申请号：US642868
申请日：1984-08-21
申请人： Toshitaka Aagano
发明人： Toshitaka Aagano
IPC分类号： G02B27/00 , G01T1/29 , G03B42/02 , G03C5/17 , G06T1/00 , H04N1/028 , H04N1/04 , G03C5/16
CPC分类号： G01T1/2014 , G03C5/17 , H04N1/0281
摘要： A radiation image read-out apparatus comprises devices for scanning a stimulable phosphor sheet carrying a radiation image stored therein by stimulating rays in a main scanning direction and in a sub-scanning direction. A light guide member having a light input face extending in the main scanning direction and a light output face closely contacted with a photodetector is positioned above the stimulable phosphor sheet. An aperture member is positioned between the surface of the stimulable phosphor sheet and the light input face of the light guide member. The aperture member is provided with an aperture for allowing stimulating rays to impinge upon the stimulable phosphor sheet and for allowing light emitted by the stimulable phosphor sheet upon stimulation thereof by the stimulating rays to enter the light input face of the light guide member, and light shielding sections positioned adjacently to the aperture on opposite sides thereof in the sub-scanning direction.
摘要翻译：放射线图像读取装置包括用于通过在主扫描方向和副扫描方向上刺激光线来扫描携带其中存储的放射线图像的可刺激磷光体片的装置。具有沿主扫描方向延伸的光输入面和与光电检测器紧密接触的光输出面的导光部件位于可激发荧光体片的上方。孔部件位于可刺激的荧光体片的表面和导光部件的光输入面之间。开口部件设置有用于允许刺激光线照射在可刺激的荧光体片上的孔，并且用于通过刺激光线刺激可刺激的荧光体片发射的光进入光导部件的光输入面，并且允许光在副扫描方向的相对侧上相对于孔径定位的屏蔽部分。

8. 发明授权

US4818880A Radiation image read-out apparatus 失效
标题翻译：辐射图像读出装置
公开(公告)号：US4818880A
公开(公告)日：1989-04-04
申请号：US710209
申请日：1985-03-11
申请人： Terumi Matsuda , Toshitaka Aagano , Junji Miyahara , Nobuyoshi Nakajima , Shigeru Saotome
发明人： Terumi Matsuda , Toshitaka Aagano , Junji Miyahara , Nobuyoshi Nakajima , Shigeru Saotome
IPC分类号： G01T1/29 , G01N23/04 , G03C5/16
CPC分类号： G01T1/2014
摘要： A radiation image read-out apparatus comprises an optical system for scanning a stimulable phosphor sheet carrying a radiation image stored therein by stimulating rays, a light guide member for guiding light emitted by the stimulable phosphor sheet upon exposure to stimulating rays, and a photoelectric converter for detecting the guided light. A film for preventing reflection of stimulating rays is closely contacted with a light input face of the light guide member. Or, a filter for absorbing the stimulating rays reflected by the stimulable phosphor sheet and transmitting the light emitted by the stimulable phosphor sheet is positioned between the stimulating ray incidence point on the stimulable phosphor sheet and the light input face of the light guide member.
摘要翻译：一种放射线图像读取装置，包括：用于通过刺激光线扫描携带其中存储的放射线图像的可刺激的荧光体片的光学系统;用于在暴露于刺激光线时引导由可刺激的荧光体片发射的光的导光部件;以及光电转换器用于检测导光。用于防止刺激光线反射的胶片与导光部件的光输入面紧密接触。或者，用于吸收可刺激的荧光体片反射的刺激光线并透射由可刺激的荧光体片发射的光的滤光器位于可刺激的荧光体片材上的刺激射线入射点与导光部件的光输入面之间。

9. 发明授权

US4655590A Method of coalescing laser beams 失效
标题翻译：聚合激光束的方法
公开(公告)号：US4655590A
公开(公告)日：1987-04-07
申请号：US641689
申请日：1984-08-17
申请人： Toshitaka Aagano , Yoshimi Takasaki
发明人： Toshitaka Aagano , Yoshimi Takasaki
IPC分类号： H01S3/101 , G02B26/10 , G02B27/10 , H01S3/00 , H04N1/028 , G01B11/27
CPC分类号： G02B27/108 , G02B27/144 , G02B27/145 , H01S3/005 , H04N1/02815 , H04N1/0283
摘要： A method of coalescing two or more laser beams employs an optical merging element such as a polarization beam splitter to make the laser beams substantially merged into a single laser beam of multiplied power. In the merged laser beam, however, the original laser beams cannot easily be perfectly aligned with each other. In order to have the laser beams perfectly mingled or coalesced at the position where they are focused on an object to be processed or an original to be read out or a recording medium, the original laser beams substantially merged into a single laser beam are collimated so that the collimated laser beams may be directed to the same focusing position on the object. To collimate the original laser beams in the merged beam, a part of the merged beam is split out and passed through a converging lens to cause the original laser beams focused to points on a pinhole plate by use of a converging lens, and the directions of the original laser beams are corrected to make the laser beams focused to the same point on the pinhole plate or coincide with the pinhole. By making these laser beams coincide with the pinhole, these laser beams are consequently collimated so that they can be focused to the same point on said object, whereby the laser beams are coalesced in effect.
摘要翻译：聚合两个或更多个激光束的方法采用诸如偏振分束器之类的光学合并元件，以使激光束基本上合并成具有倍增功率的单个激光束。然而，在合并的激光束中，原始的激光束不能很好地彼此完全对准。为了使激光束在它们被聚焦在被处理物体上的位置或待读取的原件或记录介质上完美地混合或聚结，基本上合并成单个激光束的原始激光束被准直，因此准直的激光束可以被引导到物体上的相同聚焦位置。为了准直合并光束中的原始激光束，合并光束的一部分被分割并通过会聚透镜，以使聚焦的原始激光束通过会聚透镜指向针孔板，并且方向校正原始激光束以使激光束聚焦到针孔板上的相同点或与针孔重合。通过使这些激光束与针孔一致，这些激光束因此被准直，使得它们可以聚焦到所述物体上的相同点，由此激光束有效地聚结。

10. 发明授权

US4642462A Method of correcting radiation image read-out error 失效
标题翻译：校正辐射图像读出误差的方法
公开(公告)号：US4642462A
公开(公告)日：1987-02-10
申请号：US631844
申请日：1984-07-18
申请人： Toshitaka Aagano , Yoshimi Takasaki
发明人： Toshitaka Aagano , Yoshimi Takasaki
IPC分类号： G03B42/02 , G01T1/29 , G02B26/12 , H04N1/04 , H04N1/401 , G03G5/16
CPC分类号： G01T1/2014 , H04N1/401
摘要： In a radiation image read-out system, a stimulable phosphor sheet carrying a radiation image stored therein is two-dimensionally scanned with stimulating rays, with the main scanning being effected by use of a multifaceted mirror having a plurality of deflecting surfaces. Light emitted by the stimulable phosphor sheet upon exposure to the stimulating rays is detected and converted into an electric image signal. When any of the deflecting surfaces is inclined from its predetermined position, the electric image signal obtained from the scan line drawn by the inclined deflecting surface becomes incorrect. The electric image signal obtained from the scan line drawn by the inclined deflecting surface is corrected by use of a correction coefficient which is predetermined for each deflecting surface according to the amount of inclination from the predetermined position thereof.
摘要翻译：在放射线图像读取系统中，携带其中存储的放射线图像的可刺激的荧光体片材被激发光线二维扫描，主扫描通过使用具有多个偏转表面的多面镜来实现。被刺激的荧光体片在暴露于刺激光线时发出的光被检测并转换为电图像信号。当任何偏转表面从其预定位置倾斜时，从由倾斜偏转表面绘制的扫描线获得的电图像信号变得不正确。根据从预定位置的倾斜量，通过对每个偏转表面预先确定的校正系数来校正由倾斜偏转表面绘制的扫描线获得的电图像信号。

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