WO2006043425A1 - 画像読取装置 - Google Patents
画像読取装置 Download PDFInfo
- Publication number
- WO2006043425A1 WO2006043425A1 PCT/JP2005/018535 JP2005018535W WO2006043425A1 WO 2006043425 A1 WO2006043425 A1 WO 2006043425A1 JP 2005018535 W JP2005018535 W JP 2005018535W WO 2006043425 A1 WO2006043425 A1 WO 2006043425A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- phosphor plate
- photostimulable phosphor
- optical unit
- linear motor
- image reading
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2012—Measuring radiation intensity with scintillation detectors using stimulable phosphors, e.g. stimulable phosphor sheets
- G01T1/2014—Reading out of stimulable sheets, e.g. latent image
Definitions
- the present invention relates to an image forming apparatus, and is particularly suitable for use in the medical field or the printing field.
- the present invention relates to an image reading apparatus excellent in scanning conveyance of a stimulable phosphor plate.
- Radiographic images such as X-ray images are often used for disease diagnosis and the like.
- X-rays that have passed through the subject are irradiated onto the phosphor layer (fluorescent screen), thereby generating visible light and taking a normal picture of this visible light.
- V and so-called radiographs which were developed by irradiating a film using silver salt as before, were used.
- a method has been devised for extracting an image directly from a phosphor layer without using a film coated with silver salt.
- the phosphor is excited by, for example, light or thermal energy, and the phosphor is excited.
- the radiation energy accumulated by the absorption is emitted as fluorescence, and this fluorescence is detected and imaged.
- a stimulable phosphor plate having a stimulable phosphor layer formed on a support is used.
- the stimulable phosphor layer of the stimulable phosphor plate is irradiated with radiation transmitted through the subject, A latent image is formed by accumulating radiation energy corresponding to the radiation transmittance of each part, and then, by scanning the stimulable phosphor layer with stimulating excitation light, the accumulated radiation energy of each part is obtained. Radiation is converted into light, and the intensity of the light is converted into an image signal via a photoelectric conversion means such as photomultiplier to obtain a radiographic image as digital image data.
- a photoelectric conversion means such as photomultiplier
- an image is formed on a silver salt film, or an image is output to a CRT or the like for visualization.
- the digital image data is stored in an image storage device such as a semiconductor storage device, a magnetic storage device, an optical disk storage device, etc., and then the image storage device power is also taken out as necessary via a silver salt film, a CRT or the like. Can be visualized.
- the image reading unit optical unit
- the image reading unit must be precisely moved relative to the photostimulable phosphor plate at a constant speed. I must. That is, constant speed is required in the conveyance body, and high-performance speed control is required.
- Patent Document 1 Japanese Patent Laid-Open No. 2003-248276
- the optical linear encoder has a problem in that it takes time to assemble and adjust the positional relationship between the linear scale unit and the sensor unit, which is very difficult. In this case, the desired constant speed could not be obtained. Even in this respect, if the speed unevenness deteriorated, a defect occurred.
- the present invention has been made in view of the above circumstances, and an object thereof is to provide an image reading apparatus that can obtain a good diagnostic image that is low in cost, easy to handle, and without image unevenness. It is said.
- the invention of the first aspect is an image reading apparatus that reads image information by irradiating a stimulable phosphor plate to which a stimulable phosphor sheet is attached with excitation light.
- An optical unit that reads the image information by condensing and photoelectrically converting the photostimulated light emitted from the photostimulable phosphor plate by irradiating the photostimulable phosphor plate while scanning with the excitation light from the light source.
- Rotating means that rotates by transmitting movement of the photostimulable phosphor plate through the connecting means
- Rotation detection means for detecting the rotation speed of the rotation means
- Control means for controlling the linear motor by comparing a detection result of the rotation detecting means with a preset set speed is provided.
- the stimulable phosphor plate is moved by the linear motor, and accordingly, the movement is transmitted to the rotating means via the connecting means, and the rotating means is rotated.
- the rotation detecting means detects the rotation speed.
- the linear motor is controlled so that the stimulable phosphor plate moves at a constant speed by comparing the detection result of the rotation detecting means with the set speed by the control means.
- the speed control of the linear motor is performed by the rotation detection means, the cost can be reduced as compared with the conventional case where the linear encoder is used, and the detection accuracy is affected by adhesion of dust and dirt. There is no impact. Also, there will be no problems due to insufficient assembly adjustments that do not require complicated assembly adjustments.
- the photostimulable phosphor plate can be moved at an equal speed, and as a result, when the photostimulable phosphor plate is scanned with photostimulated excitation light, a good diagnostic image without image unevenness can be obtained. Can be obtained.
- the invention of Item 2 is an image reading apparatus for reading image information by irradiating a stimulable phosphor plate to which a stimulable phosphor sheet is attached with excitation light!
- An optical unit that reads the image information by condensing and photoelectrically converting the photostimulated light emitted from the photostimulable phosphor plate by irradiating the photostimulable phosphor plate while scanning with the excitation light from the light source.
- a linear motor that moves the optical unit;
- a connecting means that moves together with the optical unit;
- Rotating means that rotates when the movement of the optical unit is transmitted through the connecting means
- Rotation detection means for detecting the rotation speed of the rotation means
- Control means for controlling the linear motor by comparing a detection result of the rotation detecting means with a preset set speed is provided.
- the optical unit is moved by the linear motor, and accordingly, the movement is transmitted to the rotating means via the connecting means, so that the rotating means rotates, and the rotational speed thereof is increased. Is detected by the rotation detecting means. Then, the control unit compares the detection result of the rotation detection unit with the set speed, thereby controlling the reduction motor so that the optical unit moves at a constant speed. In this way, the speed control of the linear motor is performed by the rotation detection means! /. Therefore, the cost can be reduced compared to the case where the linear encoder is used as in the prior art, and dirt, dirt, etc. are attached. Therefore, the detection accuracy is not affected. In addition, problems do not occur due to insufficient assembly adjustments that do not require complicated assembly adjustments.
- the optical unit can be moved at a constant speed, and as a result, when the photostimulable phosphor plate is scanned with photostimulated excitation light, a good diagnostic result without image unevenness can be obtained. .
- the invention of Item 3 is the image reading device of Item 1 or 2,
- the coupling means is provided with a vibration suppressing mechanism for suppressing vibration transmitted to the photostimulable phosphor plate or the optical unit.
- the vibration transmitted to the photostimulable phosphor plate or the optical unit is suppressed by the vibration suppression mechanism, so that the detection accuracy can be improved and the photostimulable phosphor can be improved.
- the plate or the optical unit can be moved smoothly at a constant speed.
- the invention of Item 4 is the image reading device according to any one of Items 1 to 3, wherein the connecting means includes a belt or a wire, and the rotating means is stretched around the belt or the wire.
- the connecting means includes a belt or a wire, and the rotating means is stretched around the belt or the wire.
- the plurality of pulleys have different diameters.
- the shape of the pulley may not be a perfect circle in terms of processing accuracy, for example. Force
- the frequency of the distance between the wires stretched around these pulleys increases. This may affect the detection accuracy of the moving body and the optical unit.
- the frequency of phase matching can be reduced by using pulleys with different diameters in advance as in the present invention. Therefore, the detection accuracy can be improved.
- the speed control of the linear motor is performed by the rotation detecting means, so that the cost can be reduced as compared with the conventional linear encoder and the detection by the adhesion of dust or dirt is possible. The accuracy is not reduced. In addition, it is easy to handle without the need for complicated assembly adjustments, and there is no problem caused by insufficient assembly adjustments. Therefore, the photostimulable phosphor plate or the optical unit can be moved at a constant speed. As a result, when the photostimulable phosphor plate is scanned with photostimulated excitation light, a good diagnosis without image unevenness can be obtained. An image can be obtained.
- the rotation detecting means a rotary encoder is well known. Brief Description of Drawings
- FIG. 1 is a perspective view of a transport mechanism in an image reading apparatus for illustrating a first embodiment of the present invention.
- FIG. 2 is an XZ plan view of the transport mechanism of FIG.
- FIG. 3 is an XY plan view of the transport mechanism of FIG.
- FIG. 4 is a YZ plan view of the transport mechanism of FIG.
- FIG. 5 is a block diagram showing a speed control unit of the image reading apparatus.
- FIG. 6 is a perspective view of a transport mechanism in the image reading apparatus for illustrating a second embodiment of the present invention.
- FIG. 7 is an XZ plan view of the transport mechanism of FIG.
- FIG. 8 is an XY plan view of the transport mechanism of FIG.
- FIG. 9 shows a third embodiment of the present invention, and is conveyed in the image reading apparatus. It is a perspective view of a mechanism.
- FIG. 10 is an XZ plan view of the transport mechanism of FIG.
- FIG. 11 is an XY plan view of the transport mechanism of FIG.
- FIG. 12 is a YZ plan view of the transport mechanism of FIG.
- FIG. 13 is a side sectional view showing a vibration suppressing mechanism.
- the photostimulable phosphor sheet is not rigid enough to be handled in an apparatus, so it is difficult to handle the photostimulable phosphor sheet alone. It is supported by sticking it to a support such as a resin board or by storing it in a removable case called a force set and bonding it to the inner surface of the force set.
- a support such as a resin board or by storing it in a removable case called a force set and bonding it to the inner surface of the force set.
- a photostimulable phosphor plate in the following description.
- the photostimulable phosphor plate is supported by attaching the support side to a fixed plate.
- the photostimulable phosphor plate absorbs radiation transmitted through the subject at the time of photographing, and a part of the energy is accumulated as information of a radiation image in the photostimulable phosphor.
- the image reading apparatus according to the present invention is an apparatus for reading information on a radiation image accumulated in such a photostimulable phosphor.
- FIG. 1 is a perspective view of a transport mechanism in the image reading apparatus according to the first embodiment of the present invention
- FIG. 2 is a plan view taken along the line XX in FIG. 1
- FIG. 3 is a plan view taken along the line XY in FIG. 4 is a YZ plan view
- FIG. 5 is a block diagram showing the speed control unit.
- the image reading device scans the photostimulable phosphor plate P with laser light (excitation light) L1 from a laser light irradiation device (light source) (not shown).
- the optical unit 1 that collects the photostimulated emission light L2 emitted from the photostimulable phosphor plate P and photoelectrically converts it to read the image information, and the photostimulable fluorescence provided on the base 4
- the support member 2 that supports the body plate P so as to be movable in the horizontal direction, the linear motor 7 that moves the stimulable phosphor plate P, and the stimulable phosphor plate P provided on the support member 2 in the horizontal direction And a guide rail (guide member) 31 for guiding!
- a steel wire 6 and a wire connecting body 61 which are connected to the fixing plate 8 to which the stimulable phosphor plate P is attached and move together with the stimulable phosphor plate P, and the photostimulability.
- the movement of the phosphor plate P is transmitted through the wire 6 and the wire coupling body 61, and the pulley 92 and the shaft portion 93 (rotating means) rotate, and the rotary encoder 5 that detects the rotation speed of the pulley 92 and the shaft portion 93.
- a speed control section (control means) 100 for controlling the linear motor 7 by comparing the detection result of the rotary encoder 5 with a preset set speed.
- the base 4 has a substantially rectangular plate shape, and is disposed so as to face the optical unit 1.
- a stimulable phosphor plate P is placed between the base 4 and the optical unit 1! RU
- the photostimulable phosphor plate P is supported and movable by a fixed plate 8 attached to the lower surface thereof.
- a long plate-like support member 2 extending in the horizontal direction is fixed substantially at the center of the upper surface of the base 4 so as to be substantially horizontal.
- a guide rail 31 for guiding the photostimulable phosphor plate P in the horizontal direction is provided on the upper surface of the support member 2.
- the guide rail 31 is a rod-like member having a substantially rectangular shape in cross-section, and as shown in FIG. 4, a guided member 32 having a substantially U-shape in cross-section guided by the guide rail 31 is engaged.
- the guided member 32 is attached to the moving plate 33, and the moving plate 33 is fixed to the fixed plate 8 on the lower surface of the photostimulable phosphor plate P.
- the photostimulable phosphor plate P is supported on the base 4 by the support member 2, the guide rail 31, the guided member 32, the moving plate 33, the fixed plate 8, and the like, and is attached to the optical unit 1. They are placed facing each other.
- a linear motor holding portion 72 for holding a magnet portion 71 constituting the linear motor 7 is provided on the upper surface of the base 4 and on the side of the support member 2.
- the magnet portion 71 is formed in a shaft shape by connecting a plurality of N poles or S poles of a permanent magnet having a circular cross section.
- the magnet unit 71 is provided with a movable coil 73 that constitutes the linear motor 7.
- the movable coil 73 has a coil formed in a cylindrical shape, and the coil is covered with a box-shaped cover member.
- a movable coil 73 is provided on the lower surface of the moving plate 33, and the linear motor 7 is configured such that the magnet portion 71 penetrates the center of the movable coil 73.
- a long plate-like holding member 9 extending in the horizontal direction in parallel with the support member 2 is substantially horizontal. So that it is fixed.
- a substantially L-shaped fixing member 91 in cross-section is provided at both longitudinal ends of the upper surface of the holding member 9, and the pulley 92 is held on these fixing members 91.
- a pulley holding portion 94 is provided.
- a shaft portion 93 of the pulley 92 is locked to the pulley holding portion 94, and the pulley 92 is rotatably held.
- a coupling 95 is inserted into the shaft portion 93 of one pulley 92, and a rotary encoder 5 for detecting the rotation of the shaft portion 93 accompanying the movement of the wire 6 is connected to the tip portion thereof.
- the wire 6 is stretched around the pulley 92, and a wire coupling body 61 having one piece fixed to the side surface of the moving plate 33 is provided on the wire 6.
- the wire connector 61 moves the wire 6 in the horizontal direction in conjunction with the movement of the photostimulable phosphor plate P.
- the rotary shaft of the rotary encoder 5 includes a pulley 92 and a shaft portion that are rotated by the movement of the wire 6. It rotates with 93 and detects its rotation speed. Then, the detected rotation speed information is output to the speed control unit 100 that controls the rotation speed of the linear motor 7.
- the speed controller 100 includes a difference circuit 101 and a motor drive control circuit 102 as shown in FIG.
- the above-described rotation speed information corresponding to the moving speed along the horizontal direction of the photostimulable phosphor plate P is input to the difference circuit 101.
- the difference circuit 101 processes the rotation speed information and outputs it as a rotation speed signal, and generates a difference signal by comparing with a set speed signal obtained from a preset set speed. This is output to the motor drive circuit 102 as a control signal.
- the motor drive circuit 102 controls the linear motor 7 based on the difference signal.
- the optical unit 1 is fixed at a position facing the photostimulable phosphor plate P by fixing means (not shown).
- This optical unit 1 includes a laser beam irradiation device that irradiates the stimulable phosphor plate P while scanning the laser beam L1 in a direction orthogonal to the moving direction of the stimulable phosphor plate P, and a laser beam irradiation.
- the light guide plate 13 that guides the stimulated emission light L2 excited by irradiating the photostimulable phosphor plate P with the laser light L1, and the photostimulated emission light L2 that is guided by the light guide plate 13 are collected.
- a photoelectric converter 12 for converting the photostimulated light L2 collected by the condenser 11 into an electrical signal.
- the image reading apparatus of the present invention emits radiation energy remaining on the photostimulable phosphor plate ⁇ after the radiation energy reading process is performed by the optical unit 1 (not shown).
- an erasing device for irradiating the stimulable phosphor plate with erasing light is provided.
- the photostimulable phosphor plate ⁇ is taken into the image reading apparatus by the conveying means and fixed to the fixing plate 8.
- the linear motor 7 is driven to move the fixing plate 8 supporting the stimulable phosphor plate ⁇ along the guide rail 31 in the horizontal direction.
- the photostimulable phosphor plate ⁇ is moved to a position facing the laser light irradiation surface of the optical unit 1 and moved along the horizontal direction of the optical unit 1 while moving from the laser light irradiation device to the laser light.
- L1 is scanned.
- the laser beam L1 is a stimulable phosphor plate. Irradiation is carried out while scanning in a direction perpendicular to the moving direction of.
- the excited stimulated emission light L2 is guided by the light guide plate 13 and condensed on the condenser tube 11, and is converted into an electric signal by the photoelectric converter 12.
- the photostimulable phosphor plate P moves in the horizontal direction as described above, the movement is transmitted to the wire 6 via the wire coupling body 61 provided on the moving plate 33, and the pulley 92 and The shaft 93 rotates. Along with this, the rotational speed is detected by the rotary encoder 5 connected to the shaft section 93, and the detection result is output to the speed control section 100.
- the rotational speed detected by the rotary encoder 5 is compared with a set speed signal obtained from a preset speed set in advance by the difference circuit 101, and the motor drive circuit 102 responds to the result according to the result. Control the drive.
- the moving speed of the linear motor 7 can be controlled by changing the frequency and voltage of the AC drive current by inverter control. Further, it may be controlled by the pulse width of the pulse voltage input to the movable coil 73 of the linear motor 7 by PWM control. In the case of a stepping motor, the moving speed can be controlled by setting the cycle of pulses input to the linear motor 7.
- the rotational speed of the rotary encoder 5 is always detected, and the moving speed of the linear motor 7 is controlled based on the detection result, so that the moving speed of the photostimulable phosphor plate P is kept constant. be able to. Therefore, the radiation energy accumulated in the photostimulable phosphor plate P can be excited uniformly to obtain a good image without image unevenness.
- the stimulable phosphor plate P is irradiated with erasing light by an erasing device (not shown), and thereby the radiation image remaining on the stimulable phosphor plate P is erased. Further, the photostimulable phosphor plate P is further conveyed to the outside of the image reading apparatus by the conveying means.
- the photostimulable phosphor plate P is moved by the linear motor 7, and accordingly, the wire 6 is connected via the wire connector 61.
- the pulley 92 and the shaft 93 are rotated, and the rotary encoder 5 detects the rotation speed.
- the speed control unit 100 compares the detection result of the rotary encoder 5 with the set speed, and controls the reduction motor 7 so that the stimulable phosphor plate P moves at a constant speed.
- the speed control of the linear motor 7 is performed by the rotary encoder 5, the cost can be reduced as compared with the conventional linear encoder, and the detection accuracy can be affected by adhesion of dust and dirt. Absent. Also, there will be no problems due to insufficient assembly adjustments that do not require complicated assembly adjustments!
- the photostimulable phosphor plate P can be moved at an equal speed. As a result, when the photostimulable phosphor plate P is scanned with the laser light L1, a good diagnosis without image unevenness is obtained. An image can be obtained.
- FIG. 6 is a perspective view of the transport mechanism in the image reading apparatus according to the second embodiment of the present invention
- FIG. 7 is an XY plan view in FIG. 6
- FIG. 8 is an XY plan view in FIG. is there.
- the image reading apparatus of the second embodiment of the present invention has the photostimulable phosphor plate P fixed to the base 4 and the optical unit 1 moved in the horizontal direction. It is configured to
- the stimulable phosphor plate P is arranged so that the upper surface of the base 4 and the laser light irradiation surface of the stimulable phosphor plate P are substantially perpendicular. It is held and speaks.
- the photostimulable phosphor plate P is attached with 8 plates of a fixed plate whose surface on the support side is fixed on the base 4.
- optical unit 1 is movable in the horizontal direction by a guided member 32 and a moving plate 33 that engage with the guide rail 31 of the support member 2 fixed at the approximate center of the base 4.
- the optical unit 1 is moved by the linear motor 7, and accordingly, the wire 6 is moved via the wire coupling body 61.
- the pulley 92 and the shaft 93 rotate, and the rotary encoder 5 To detect.
- the speed control unit 100 compares the detection result of the rotary encoder 5 with the set speed, and controls the linear motor 7 so that the optical unit 1 moves at a constant speed.
- the speed control of the linear motor 7 is performed by the rotary encoder 5, the cost can be reduced as compared with the conventional linear encoder, and the detection accuracy is not affected by adhesion of dust and dirt. In addition, problems do not occur due to insufficient assembly adjustment that does not require complicated assembly adjustment.
- the optical unit 1 can be moved at a constant speed, and as a result, when the photostimulable phosphor plate P is scanned with the laser light L1, a good diagnostic image without image unevenness can be obtained. Can do.
- FIG. 9 is a perspective view of the transport mechanism in the image reading apparatus according to the third embodiment of the present invention
- FIG. 10 is an XY plan view in FIG. 9
- FIG. 11 is an XY plan view in FIG.
- FIG. 12 is a YZ plan view of FIG.
- the image reading apparatus has a configuration in which the optical unit 1 moves in the horizontal direction with respect to the photostimulable phosphor plate P, similarly to the configuration of the second embodiment. It is becoming. However, unlike the second embodiment, the rotary encoder 5 moves in the horizontal direction relative to the fixed wire 6 in conjunction with the movement of the optical unit 1.
- FIG. 9 to FIG. 12 the cross sectional view L that moves along the horizontal direction on the upper surface of the holding member 9 on the side of the moving plate 33 provided on the lower surface of the optical unit 1.
- a character-shaped movable stage (connecting means) 96 is provided. One piece of the movable stage 96 is fixed to the side surface of the moving plate 33 of the optical unit 1, and the other piece is arranged on the upper surface of the holding member 9.
- a pulley holding portion 94 for holding pulleys 92a, 92b arranged vertically. Shaft portions 93 of the pulleys 92a and 92b are locked to the pulley holding portion 94, and the pulleys 92a and 92b are rotatably held. These upper and lower pulleys 92a and 92b are preferably different in diameter.
- a coupling 95 is passed through the shaft portion 93 of the lower pulley 92b, and a rotary encoder 5 for detecting the rotation of the shaft portion 93 accompanying the movement of the gear 6 is connected to the tip portion thereof.
- fixing members 91a and 91b having substantially L-shaped cross-sections are provided at both ends in the longitudinal direction of the upper surface of the holding member 9, and both ends of the wire 6 are provided on these fixing members 91a and 91b.
- the upper and lower pulleys 92a and 92b are stretched around the wire 6.
- the rotary shaft of the rotary encoder 5 rotates together with the pulleys 92 a and 92 b and the shaft portion 93 that are rotated by the movement of the optical unit 1 and the movable stage 96, and detects the rotational speed. Then, the detected rotational speed information is output to the speed control unit 100 that controls the moving speed of the linear motor 7.
- the optical unit 1 is moved by the linear motor 7, and accordingly, the movable stage 96 is moved on the holding member 9, and is fixed.
- the pulleys 92a and 92b and the shaft portion 93 that are stretched around the fixed wire 6 are rotated by transmission of the movement, and the rotary encoder 5 detects the rotational speed.
- the speed control unit 100 compares the detection result of the rotary encoder 5 with the set speed, and controls the linear motor 7 so that the movement of the optical unit 1 becomes equal speed.
- the optical unit 1 can be moved at a constant speed, and as a result, when the photostimulable phosphor plate P is scanned with the laser light L1, a good diagnostic image without image unevenness can be obtained. Can do.
- the force of the pulley may not be a perfect circle in terms of machining accuracy.
- the shape of the pulley may not be a perfect circle. , The frequency of phase matching can be reduced, and the detection accuracy can be improved
- the steel wire 6 is provided with a vibration suppressing mechanism 600 as shown in Fig. 13 for absorbing the vibration of the wire 6 and suppressing the vibration transmitted to the stimulable phosphor plate P and the optical unit 1.
- the vibration suppression mechanism 600 includes a side plate 602 that can rotate around a fulcrum shaft 601, a roller 604 that is provided at one end of the side plate 602 via a roller rotation shaft 603, and presses the wire 6, and a frame (not shown).
- a bow I-tensioned panel 6007 that hangs on the shaft 606 provided on the side plate 602 and urges the side plate 602 in the pressing direction of the wire 6. Therefore, the side plate 602 is rotated about the fulcrum shaft 601, and the roller 604 presses the wire 6 by the urging force of the pull panel 607, so that the vibration of the wire 6 can be absorbed. Rotational accuracy can be kept good.
- a belt or the like may be used instead of the wire 6.
- the guide rail 31 is a rod-like member having a substantially rectangular shape in cross section, it may have a substantially circular shape in cross section.
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Facsimile Scanning Arrangements (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
- Radiography Using Non-Light Waves (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006542320A JPWO2006043425A1 (ja) | 2004-10-18 | 2005-10-06 | 画像読取装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-302783 | 2004-10-18 | ||
JP2004302783 | 2004-10-18 |
Publications (1)
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WO2006043425A1 true WO2006043425A1 (ja) | 2006-04-27 |
Family
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PCT/JP2005/018535 WO2006043425A1 (ja) | 2004-10-18 | 2005-10-06 | 画像読取装置 |
Country Status (3)
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US (1) | US20060081796A1 (ja) |
JP (1) | JPWO2006043425A1 (ja) |
WO (1) | WO2006043425A1 (ja) |
Families Citing this family (2)
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JP2005221736A (ja) * | 2004-02-05 | 2005-08-18 | Konica Minolta Medical & Graphic Inc | 放射線画像読取装置 |
KR101019714B1 (ko) * | 2009-04-01 | 2011-03-07 | 쓰리디이미징앤시뮬레이션즈(주) | 디지털 엑스레이 영상 획득장치 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0470646A (ja) * | 1990-07-06 | 1992-03-05 | Toshiba Corp | X線撮影装置のカセット保持装置 |
JPH07199369A (ja) * | 1993-12-28 | 1995-08-04 | Ricoh Co Ltd | 走行体駆動装置 |
JP2003248276A (ja) * | 2002-02-25 | 2003-09-05 | Konica Corp | レーザ光走査装置及び画像読取装置 |
-
2005
- 2005-10-06 WO PCT/JP2005/018535 patent/WO2006043425A1/ja active Application Filing
- 2005-10-06 JP JP2006542320A patent/JPWO2006043425A1/ja active Pending
- 2005-10-14 US US11/251,225 patent/US20060081796A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0470646A (ja) * | 1990-07-06 | 1992-03-05 | Toshiba Corp | X線撮影装置のカセット保持装置 |
JPH07199369A (ja) * | 1993-12-28 | 1995-08-04 | Ricoh Co Ltd | 走行体駆動装置 |
JP2003248276A (ja) * | 2002-02-25 | 2003-09-05 | Konica Corp | レーザ光走査装置及び画像読取装置 |
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JPWO2006043425A1 (ja) | 2008-05-22 |
US20060081796A1 (en) | 2006-04-20 |
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