公开(公告)号：US06818913B2

公开(公告)日：2004-11-16

申请号：US09792035

申请日：2001-02-26

申请人： Hiroaki Yasuda ,  Shinji Imai

发明人： Hiroaki Yasuda ,  Shinji Imai

IPC分类号： G03B4208

CPC分类号： G01T1/2014

摘要： An image recording sheet and a solid-state image detector are used. The sheet has a stimulable phosphor layer laminated on a base, and the solid-state image detector includes a photoconductive layer containing amorphous selenium as its main component and electrodes disposed on opposite sides of the photoconductive layer. An electric field is applied across the photoconductive layer so that avalanche amplification is obtained within the photoconductive layer. The sheet is scanned under the electric field with stimulating light of wavelength of about 600 nm, and photostimulated luminescence light of wavelength of about 400 nm emitted from the fluorescent layer is incident on the photoconductive layer via an optical guide and a stimulating light cut filter. Electric charge generated within the photoconductive layer is detected by a current detecting circuit, whereby a radiation image signal is obtained.

摘要翻译： 使用图像记录纸和固态图像检测器。 片材具有层叠在基底上的可激发荧光体层，固态图像检测器包括含有非晶硒作为其主要成分的光电导层和设置在光电导层的相对侧上的电极。 在光电导层两端施加电场，使得在光电导层内获得雪崩放大。 在激光波长约600nm的电场下扫描该片材，并且从荧光层发射的约400nm的波长的光刺激发光通过光导和刺激性截光滤光片入射到光电导层上。 通过电流检测电路检测在光电导层内产生的电荷，从而获得放射线图像信号。

公开(公告)号：US07211818B2

公开(公告)日：2007-05-01

申请号：US10267674

申请日：2002-10-10

申请人： Shinji Imai ,  Hiroaki Yasuda

发明人： Shinji Imai ,  Hiroaki Yasuda

IPC分类号： G03B42/08

CPC分类号： G03B42/08

摘要： An image signal is read out by use of a stimulable phosphor sheet having a layer of stimulable phosphor which emits stimulated emission in proportion to the stored energy of radiation upon exposure to stimulating light and a solid image sensor having a photoconductive material layer which exhibits electric conductivity upon exposure to the stimulated emission from the stimulable phosphor sheet. Stimulating light is caused to scan a stimulable phosphor sheet which has been exposed to radiation and has stored an image, the photoconductive material layer is caused to be exposed to stimulated emission emitted from the stimulable phosphor sheet upon exposure to the stimulating light. Then electric charges generated in the photoconductive material layer upon exposure to the stimulated emission is detected by applying an electric field to the photoconductive material layer. The stimulable phosphor sheet has a layer of stimulable phosphor which is stimulated by stimulating light in a wavelength range of not shorter than 600 nm and emits stimulated emission in a wavelength range of not longer than 500 nm. The solid image sensor has a photoconductive material layer whose major component is a-Se, and the electric field is such as to generate an avalanche amplification effect in the photoconductive material layer.

摘要翻译： 通过使用具有可刺激的磷光体层的可刺激的荧光体片材读出图像信号，该层可激发的荧光体在暴露于刺激光时与辐射的存储能量成比例地发射受激发射，以及具有导电材料层的实心图像传感器，其具有导电性 在暴露于来自可刺激的荧光体片材的受激发射时。 使刺激光扫描已经暴露于辐射并且已经存储图像的可刺激的荧光粉片，使得光导材料层在暴露于刺激光时被暴露于从可刺激的磷光体片发射的受激发射。 然后，通过向感光材料层施加电场来检测在受激发射时在光电导材料层中产生的电荷。 可刺激的荧光体片具有可刺激的磷光体层，其通过刺激在不小于600nm的波长范围内的光而被激发，并且在不超过500nm的波长范围内发射受激发射。 固体图像传感器具有主要成分为a-Se的光导材料层，并且电场在光电导材料层中产生雪崩放大效应。

公开(公告)号：US07071482B2

公开(公告)日：2006-07-04

申请号：US10267676

申请日：2002-10-10

申请人： Shinji Imai ,  Hiroaki Yasuda

发明人： Shinji Imai ,  Hiroaki Yasuda

IPC分类号： G03B42/08

CPC分类号： G03B42/08

摘要： An image signal is read out by use of a stimulable phosphor sheet having a layer of stimulable phosphor which emits stimulated emission in proportion to the stored energy of radiation upon exposure to stimulating light and a solid image sensor having a photoconductive material layer which exhibits electric conductivity upon exposure to the stimulated emission from the stimulable phosphor sheet. Stimulating light is caused to scan a stimulable phosphor sheet which has been exposed to radiation and has stored an image, the photoconductive material layer is caused to be exposed to stimulated emission emitted from the stimulable phosphor sheet upon exposure to the stimulating light. Then electric charges generated in the photoconductive material layer upon exposure to the stimulated emission is detected by applying an electric field to the photoconductive material layer. The stimulable phosphor sheet has a layer of stimulable phosphor which is stimulated by stimulating light in a wavelength range of not shorter than 600 nm and emits stimulated emission in a wavelength range of not longer than 500 nm. The solid image sensor has a photoconductive material layer whose major component is a-Se, and the electric field is such as to generate an avalanche amplification effect in the photoconductive material layer.

公开(公告)号：US07041999B2

公开(公告)日：2006-05-09

申请号：US10714850

申请日：2003-11-18

申请人： Shinji Imai ,  Hiroaki Yasuda

发明人： Shinji Imai ,  Hiroaki Yasuda

IPC分类号： G03B42/08

CPC分类号： G03B42/08

摘要： An image signal is read out by use of a stimulable phosphor sheet having a layer of stimulable phosphor which emits stimulated emission in proportion to the stored energy of radiation upon exposure to stimulating light and a solid image sensor having a photoconductive material layer which exhibits electric conductivity upon exposure to the stimulated emission from the stimulable phosphor sheet. Stimulating light is caused to scan a stimulable phosphor sheet which has been exposed to radiation and has stored an image, the photoconductive material layer is caused to be exposed to stimulated emission emitted from the stimulable phosphor sheet upon exposure to the stimulating light. Then electric charges generated in the photoconductive material layer upon exposure to the stimulated emission is detected by applying an electric field to the photoconductive material layer. The stimulable phosphor sheet has a layer of stimulable phosphor which is stimulated by stimulating light in a wavelength range of not shorter than 600 nm and emits stimulated emission in a wavelength range of not longer than 500 nm. The solid image sensor has a photoconductive material layer whose major component is a-Se, and the electric field is such as to generate an avalanche amplification effect in the photoconductive material layer.

公开(公告)号：US20070164242A1

公开(公告)日：2007-07-19

申请号：US11694692

申请日：2007-03-30

申请人： Hiroaki Yasuda

发明人： Hiroaki Yasuda

IPC分类号： G03B42/08

CPC分类号： G01N23/046 ,  G01N2223/419 ,  G01T1/2014 ,  G21K1/10 ,  G21K4/00

摘要： A radiation image read-out apparatus includes a condenser optical system which converges stimulated emission emitted from a radiation image convertor panel upon exposure to stimulating light. A photodetector receives the stimulated emission converged by the condenser optical system and has a sensitivity to light longer in wavelength than the stimulating light and a stimulating light cut filter is disposed in the optical path of the stimulated emission between the photodetector and the radiation image convertor panel to transmit the stimulated emission and to cut the stimulating light. A longer wavelength light cut filter which transmits the stimulated emission and attenuates the intensity of light components longer in wavelength than the stimulating light is provided in the optical path of the stimulated emission between the photodetector and the radiation image convertor panel.

摘要翻译： 辐射图像读出装置包括聚光光学系统，其在暴露于刺激光时会聚从辐射图像转换器面板发射的受激发射。 光电检测器接收由聚光器光学系统会聚的受激发射，并且具有比刺激光更长的光的灵敏度，并且刺激的光截止滤光器设置在光电检测器和辐射图像转换面板之间的受激发射的光路中 以传输受激发射并切割刺激光。 在光检测器和放射线图像转换面板之间的受激发射的光路中设置有发射受激发射并且衰减波长比刺激光长的光分量的强度的较长波长的截止滤波器。

公开(公告)号：US07123759B1

公开(公告)日：2006-10-17

申请号：US09607921

申请日：2000-06-30

申请人： Hiroaki Yasuda

发明人： Hiroaki Yasuda

IPC分类号： G06K9/00

CPC分类号： G03B42/02

摘要： A plurality of original image signals representing radiation image information, which have been fed out from an image signal input apparatus, are fed into an operation processing device. Predetermined operation processing is performed on the plurality of the received original image signals in the operation processing device to obtain an operation-processed image signal. Also, at least one original image signal, which is among the plurality of the original image signals, is transferred to an image output device. Image outputting is performed with the image output device and in accordance with the one original image signal having been transferred. After the operation-processed image signal has been obtained from the predetermined operation processing, the operation-processed image signal is fed into the image output device, and image outputting is performed with the image output device and in accordance with the received operation-processed image signal.

摘要翻译： 表示从图像信号输入装置输出的放射线图像信息的多个原始图像信号被馈送到操作处理装置。 对操作处理装置中的多个接收的原始图像信号执行预定的操作处理，以获得操作处理的图像信号。 此外，在多个原始图像信号之中的至少一个原始图像信号被传送到图像输出装置。 使用图像输出装置执行图像输出，并且根据已经传送的一个原始图像信号。 在从预定的操作处理获得操作处理的图像信号之后，将操作处理的图像信号馈送到图像输出装置中，并且利用图像输出装置执行图像输出并且根据接收的操作处理的图像 信号。

公开(公告)号：US07042000B2

公开(公告)日：2006-05-09

申请号：US10669017

申请日：2003-09-24

申请人： Hiroaki Yasuda

发明人： Hiroaki Yasuda

IPC分类号： G01N23/04

CPC分类号： H04N1/0306 ,  G02B5/22 ,  G02B5/26 ,  H04N1/03 ,  H04N1/0315 ,  H04N2201/02493

摘要： A stimulating light cut filter is disposed between a radiation image convertor panel and a line sensor to transmit the stimulated emission and cut the stimulating light. The stimulating light cut filter includes an optical element which absorbs the stimulating light, and a reflecting layer which reflects the stimulating light.

摘要翻译： 刺激性的光截止滤光器设置在辐射图像转换面板和线传感器之间，以传输受激发射并切割刺激光。 刺激性的光截止滤光器包括吸收刺激光的光学元件和反射刺激光的反射层。

公开(公告)号：US20060086914A1

公开(公告)日：2006-04-27

申请号：US11299946

申请日：2005-12-13

申请人： Hiroaki Yasuda

发明人： Hiroaki Yasuda

IPC分类号： G03C5/16

CPC分类号： G03B42/02

摘要： A plurality of original image signals representing radiation image information, which have been fed out from an image signal input apparatus, are fed into an operation processing device. Predetermined operation processing is performed on the plurality of the received original image signals in the operation processing device to obtain an operation-processed image signal. Also, at least one original image signal, which is among the plurality of the original image signals, is transferred to an image output device. Image outputting is performed with the image output device and in accordance with the one original image signal having been transferred. After the operation-processed image signal has been obtained from the predetermined operation processing, the operation-processed image signal is fed into the image output device, and image outputting is performed with the image output device and in accordance with the received operation-processed image signal.

公开(公告)号：US06940078B2

公开(公告)日：2005-09-06

申请号：US10372208

申请日：2003-02-25

申请人： Hiroaki Yasuda ,  Yasunori Ohta

发明人： Hiroaki Yasuda ,  Yasunori Ohta

IPC分类号： G21K4/00 ,  A61B6/00 ,  G01T1/00 ,  G01T1/29 ,  G03B42/02 ,  G03B42/04 ,  G03B42/08 ,  H04N1/04

CPC分类号： G01T1/2012

摘要： When an output voltage from an acceleration sensor is judged as being larger than a reference voltage of a reference voltage setting unit, a comparator outputs a pulse signal to a holding circuit. The holding circuit holds a high-level energization signal, and an LED is energized by the energization signal supplied from the holding circuit, informing the operator that an excessively large external force has been applied to the cassette.

摘要翻译： 当来自加速度传感器的输出电压被判断为大于参考电压设定单元的参考电压时，比较器向保持电路输出脉冲信号。 保持电路保持高电平通电信号，并且通过从保持电路提供的通电信号激励LED，通知操作者已经对磁带盒施加过大的外力。

公开(公告)号：US06765225B2

公开(公告)日：2004-07-20

申请号：US09986152

申请日：2001-11-07

申请人： Hiroaki Yasuda

发明人： Hiroaki Yasuda

IPC分类号： G03B4208

CPC分类号： G03B42/02

摘要： Initial image data having a pixel size smaller than a pixel size of a final image are obtained by using line sensors arranged in a main scan direction and a vertical scan direction, and the final image becomes of high quality by processing the initial image data to prevent the image from becoming uneven. Integration processing means carries out a first conversion process to convert the initial image data comprising signals detected by the line sensors into data for pixels divided in the main scan direction. The integration processing means carries out a second conversion process in which, whenever the data are obtained for three consecutive pixels in the main scan direction, the data are added to become data for one pixel of the final image. The data for the final image are then subjected to an equalization process such as dark current correction carried out by a correction means.

摘要翻译： 通过使用以主扫描方向和垂直扫描方向布置的线传感器，获得具有小于最终图像的像素尺寸的像素尺寸的初始图像数据，并且通过处理初始图像数据来最终图像变得高质量，以防止 图像变得不均匀。 集成处理装置执行第一转换处理，以将包括由行传感器检测的信号的初始图像数据转换为在主扫描方向上划分的像素的数据。 积分处理装置执行第二转换处理，其中，只要在主扫描方向上为三个连续的像素获得数据，则添加数据成为最终图像的一个像素的数据。 然后对最终图像的数据进行均衡处理，例如由校正装置进行的暗电流校正。