EP0220629A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Radiation image recording and read-out apparatus
Assignee: Fujifilm Holdings Corp
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Filing: 1986-10-17
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Granted: —
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Expires: 2006-10-17
Abstract
Abstract A radiation image recording and read-out apparatus comprises a case housing a stimulable phosphor sheet and having an opening, a light shielding cover housed in the case for projection therefrom through the opening, a recording section for exposing the stimulable phosphor sheet disposed at an exposure position in the light shielding cover projected out of the case to radiation, and a read-out section having a sub-scanning system for moving the stimulabe phosphor sheet between the exposure position and a position in the case. Or, the apparatus comprises a case having an opening for passing the stimulable phosphor sheet therethrough, a recording section for exposing the stimulable phosphor sheet disposed at the exposure position in the case to radiation, and a read-out section having a sub-scanning system for moving the stimulable phosphor sheet between the exposure position and a position projected out of the case. Alternatively, the apparatus comprises a sheet feed system for reciprocating a strip-like flexible stimulable phosphor sheet between first and second wind-up shafts, and a recording section for exposing the stimulable phosphor sheet disposed between the first and second wind up shafts to radiation.
Inventors
- 👤 Kazuo Fuji Photo Film Co. Ltd. Shimura
- 👤 Nobufumi Fuji Photo Film Co. Ltd. Mori
- 👤 Shigeru Fuji Photo Film Co. Ltd. Saotome
- 👤 Ryoichi Fuji Photo Film Co. Ltd. Yoshimura
- 👤 Hideo Fuji Photo Film Co. Ltd. Watanabe
- 👤 Yuichi Fuji Photo Film Co. Ltd. Hosoi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 06:36
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/2012
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
281 words
A radiation image recording and read-out apparatus which comprises: i) a case housing a stimulable phosphor sheet for storing a radiation image thereon, and provided with an opening at one end portion, ii) a light shielding cover housed in said case for projection out of said case through said opening, and provided with a sheet passage opening at an end portion on the side supported by said case at the time of projection out of said case, iii) an image recording section for exposing said stimulable phosphor sheet, which is disposed at an exposure position inside of said light shielding cover projected out of said case, to a radiation carrying image information to have the radiation image stored on said stimulable phosphor sheet, iv) an image read-out section provided with a sub-scanning means for moving said stimulable phosphor sheet between said exposure position and a position to which said stimulable phosphor sheet advances through said sheet passage opening into said case, and a main scanning means for scanning said stimulable phosphor sheet with stimulating rays in a main scanning direction in the vicinity of said opening of said case inside of said case, wherein said stimulable phosphor sheet carrying said radiation image stored thereon is exposed to the stimulating rays which cause said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and the emitted light is read out by a photoelectric read-out means to obtain an image signal, and v) an erasing section for releasing radiation energy remaining on said stimulable phosphor sheet, for which the image read-out has been conducted at said image read-out section, before image recording is conducted on said stimulable phosphor sheet.
Claim 2
Dependent Claim
281 words
A radiation image recording and read-out apparatus which comprises: i) a case housing a stimulable phosphor sheet for storing a radiation image thereon, and provided with an opening at one end portion, ii) a light shielding cover housed in said case for projection out of said case through said opening, and provided with a sheet passage opening at an end portion on the side supported by said case at the time of projection out of said case, iii) an image recording section for exposing said stimulable phosphor sheet, which is disposed at an exposure position inside of said light shielding cover projected out of said case, to a radiation carrying image information to have the radiation image stored on said stimulable phosphor sheet, iv) an image read-out section provided with a sub-scanning means for moving said stimulable phosphor sheet between said exposure position and a position to which said stimulable phosphor sheet advances through said sheet passage opening into said case, and a main scanning means for scanning said stimulable phosphor sheet with stimulating rays in a main scanning direction in the vicinity of said opening of said case inside of said case, wherein said stimulable phosphor sheet carrying said radiation image stored thereon is exposed to the stimulating rays which cause said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and the emitted light is read out by a photoelectric read-out means to obtain an image signal, and v) an erasing section for releasing radiation energy remaining on said stimulable phosphor sheet, for which the image read-out has been conducted at said image read-out section, before image recording is conducted on said stimulable phosphor sheet.
Claim 3
Dependent Claim
69 words
An apparatus as defined in Claim 1 wherein said stimulable phosphor sheet comprises a substrate and a stimulable phosphor layer overlaid on said substrate and is positioned so that said stimulable phosphor sheet is exposed to said radiation from the substrate side in said light shielding cover, and said stimulable phosphor sheet is exposed to said stimulating rays from the stimulable phosphor layer side at said image read-out section.
Claim 4
Dependent Claim
53 words
An apparatus as defined in Claim 1 wherein said stimulable phosphor sheet comprises a substrate and a stimulable phosphor layer overlaid on said substrate and is positioned so that said stimulable phosphor sheet is exposed to said radiation and said stimulating rays from the stimulable phosphor layer side at said image read-out section.
Claim 5
Dependent Claim
41 words
An apparatus as defined in Claim 1 wherein said erasing section comprises an openable light shielding member provided at least on one side of said light shielding cover and opened to expose said stimulable phosphor sheet to external light for erasing.
Claim 6
Dependent Claim
235 words
A radiation image recording and read-out apparatus which comprises: i) a case housing a stimulable phosphor sheet for storing a radiation image thereon, and provided with an opening for allowing passage of said stimulable phosphor sheet therethrough at one end portion, ii) an image recording section for exposing said stimulable phosphor sheet, which is disposed at an exposure position inside of said case, to a radiation carrying image information to have the radiation image stored on said stimulable phosphor sheet, iii) an image read-out section provided with a sub-scanning means for moving said stimulable phosphor sheet between said exposure position and a position to which said stimulable phosphor sheet is projected out of said case through said opening, and a main scanning means for scanning said stimulable phosphor sheet with stimulating rays in a main scanning direction in the vicinity of said opening inside of said case, wherein said stimulable phosphor sheet carrying said radiation image stored thereon is exposed to the stimulating rays which cause said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and the emitted light is read out by a photoelectric read-out means to obtain an image signal, and iv) an erasing section for releasing radiation energy remaining on said stimulable phosphor sheet, for which the image read-out has been conducted at said image read-out section, before image recording is conducted on said stimulable phosphor sheet.
Claim 7
Dependent Claim
235 words
A radiation image recording and read-out apparatus which comprises: i) a case housing a stimulable phosphor sheet for storing a radiation image thereon, and provided with an opening for allowing passage of said stimulable phosphor sheet therethrough at one end portion, ii) an image recording section for exposing said stimulable phosphor sheet, which is disposed at an exposure position inside of said case, to a radiation carrying image information to have the radiation image stored on said stimulable phosphor sheet, iii) an image read-out section provided with a sub-scanning means for moving said stimulable phosphor sheet between said exposure position and a position to which said stimulable phosphor sheet is projected out of said case through said opening, and a main scanning means for scanning said stimulable phosphor sheet with stimulating rays in a main scanning direction in the vicinity of said opening inside of said case, wherein said stimulable phosphor sheet carrying said radiation image stored thereon is exposed to the stimulating rays which cause said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and the emitted light is read out by a photoelectric read-out means to obtain an image signal, and iv) an erasing section for releasing radiation energy remaining on said stimulable phosphor sheet, for which the image read-out has been conducted at said image read-out section, before image recording is conducted on said stimulable phosphor sheet.
Claim 8
Dependent Claim
67 words
An apparatus as defined in Claim 5 wherein said stimulable phosphor sheet comprises a substrate and a stimulable phosphor layer overlaid on said substrate and is positioned so that said stimulable phosphor sheet is exposed to said radiation from the substrate side in said case, and said stimulable phosphor sheet is exposed to said stimulating rays from the stimulable phosphor layer side at said image read-out section.
Claim 9
Dependent Claim
218 words
A radiation image recording and read-out apparatus which comprises: i) a first wind-up shaft for winding one end side of a strip-like flexible stimulable phosphor sheet for storing a radiation image thereon, ii) a second wind-up shaft disposed in spaced relation to said first wind-up shaft for winding the other end side of said stimulable phosphor sheet, iii) a sheet feed means for reciprocating said stimulable phosphor sheet between said first wind-up shaft and said second wind-up shaft, iv) an image recording section for exposing said stimulable phosphor sheet, which is positioned between said first wind-up shaft and said second wind-up shaft, to a radiation carrying image information to have the radiation image stored on said stimulable phosphor sheet, v) an image read-out section for exposing said stimulable phosphor sheet carrying said radiation image stored thereon to stimulating rays which are emitted by a stimulating ray irradiation means and which cause said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and reading out the emitted light by a photoelectric read-out means to obtain an image signal, and vi) an erasing for releasing radiation energy remaining on said stimulable phosphor sheet, for which the image read-out has been conducted at said image read-out section, before image recording is conducted on said stimulable phosphor sheet.
Claim 10
Dependent Claim
218 words
A radiation image recording and read-out apparatus which comprises: i) a first wind-up shaft for winding one end side of a strip-like flexible stimulable phosphor sheet for storing a radiation image thereon, ii) a second wind-up shaft disposed in spaced relation to said first wind-up shaft for winding the other end side of said stimulable phosphor sheet, iii) a sheet feed means for reciprocating said stimulable phosphor sheet between said first wind-up shaft and said second wind-up shaft, iv) an image recording section for exposing said stimulable phosphor sheet, which is positioned between said first wind-up shaft and said second wind-up shaft, to a radiation carrying image information to have the radiation image stored on said stimulable phosphor sheet, v) an image read-out section for exposing said stimulable phosphor sheet carrying said radiation image stored thereon to stimulating rays which are emitted by a stimulating ray irradiation means and which cause said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and reading out the emitted light by a photoelectric read-out means to obtain an image signal, and vi) an erasing for releasing radiation energy remaining on said stimulable phosphor sheet, for which the image read-out has been conducted at said image read-out section, before image recording is conducted on said stimulable phosphor sheet.
Claim 11
Dependent Claim
72 words
An apparatus as defined in Claim 7 wherein said stimulable phosphor sheet comprises a flexible substrate and a stimulable phosphor layer overlaid on said flexible substrate and is positioned so that said stimulable phosphor sheet is exposed to said radiation from the flexible substrate side at said image recording section, and said stimulable phosphor sheet is exposed to said stimulating rays from the stimulable phosphor layer side at said image read-out section.
Claim 12
Dependent Claim
24 words
An apparatus as defined in Claim 7 wherein a secondary erasing section is positioned between said first wind-up shaft and said image recording section.
Claim 13
Dependent Claim
18 words
An apparatus as defined in Claim 7 wherein said erasing section is shielded from said image read-out section.
Claim 14
Dependent Claim
117 words
A radiation image recording and read-out apparatus for positioning a stimulable phosphor sheet at an exposure position where said stimulable phosphor sheet is exposed to a radiation carrying image information, exposing said stimulable phosphor sheet to the radiation to have a radiation image stored thereon, reciprocably conveying said stimulable phosphor sheet in one direction from said exposure position, and reading out said radiation image stored on said stimulable phosphor sheet in the course of said reciprocable conveyance, wherein the improvement comprises constituting the conveyance means, which is used for conveying and positioning said stimulable phosphor sheet at said exposure position and then reciprocably conveying said stimulable phosphor sheet in one direction, by a pair of nip rollers.
Claim 15
Dependent Claim
117 words
A radiation image recording and read-out apparatus for positioning a stimulable phosphor sheet at an exposure position where said stimulable phosphor sheet is exposed to a radiation carrying image information, exposing said stimulable phosphor sheet to the radiation to have a radiation image stored thereon, reciprocably conveying said stimulable phosphor sheet in one direction from said exposure position, and reading out said radiation image stored on said stimulable phosphor sheet in the course of said reciprocable conveyance, wherein the improvement comprises constituting the conveyance means, which is used for conveying and positioning said stimulable phosphor sheet at said exposure position and then reciprocably conveying said stimulable phosphor sheet in one direction, by a pair of nip rollers.
Claim 16
Dependent Claim
71 words
An apparatus as defined in Claim 11 wherein said pair of nip rollers are positioned to face an opening formed in a wall of a case of said apparatus for allowing passage of said stimulable phosphor sheet therethrough, and a guide member is positioned in the vicinity of said pair of nip rollers on the side opposite to said opening with respect to said pair of nip rollers in said case.
Claim 17
Dependent Claim
42 words
An apparatus as defined in Claim 11 or 12 wherein said stimulable phosphor sheet is provided with a holding portion at an end portion which is grasped between said pair of nip rollers for adjusting the position of said stimulable phosphor sheet.
Claim 18
Dependent Claim
64 words
A radiation image storage panel comprising a substrate, and a stimulable phosphor layer overlaid on said substrate and containing a binder and a stimulable phosphor dispersed therein, wherein the improvement comprises the provision of a flexible extension formed of a flexible material at a leading end portion and/or a rear end portion as viewed in a movement direction of said radiation image storage panel.
Claim 19
Dependent Claim
64 words
A radiation image storage panel comprising a substrate, and a stimulable phosphor layer overlaid on said substrate and containing a binder and a stimulable phosphor dispersed therein, wherein the improvement comprises the provision of a flexible extension formed of a flexible material at a leading end portion and/or a rear end portion as viewed in a movement direction of said radiation image storage panel.
Claim 20
Dependent Claim
24 words
A radiation image storage panel as defined in Claim 14 wherein the modulus of elasticity of said extension is 4x10 2 kg/mm or less.
Claim 21
Dependent Claim
27 words
A radiation image storage panel as defined in Claim 14 or 15 wherein the thickness of said radiation image storage panel including said extension is generally uniform.
Claim 22
Dependent Claim
41 words
A radiation image storage panel as defined in Claim 14 or 15 wherein the length of said extension is not less than 0.1 times the length of said stimulable phosphor layer in the movement direction of said radiation image storage panel.
Claim 23
Dependent Claim
28 words
A radiation image storage panel as defined in Claim 14 or 15 wherein said extension is formed of a synthetic resin sheet which does not have self-supporting property.
Claim 24
Independent Claim
104 words
A method of moving a radiation image storage panel, which comprises the steps of: i) grasping a flexible extension of said radiation image storage panel by at least one pair of rolls, said radiation image storage panel comprising a substrate, and a stimulable phosphor layer overlaid on said substrate and containing a binder and a stimulable phosphor dispersed therein, and provided with said flexible extension formed of a flexible material at a leading end portion and/or a rear end portion as viewed in a movement direction of said radiation image storage panel, and ii) rotating said rolls to move said radiation image storage panel.
Claim 25
Independent Claim
104 words
A method of moving a radiation image storage panel, which comprises the steps of: i) grasping a flexible extension of said radiation image storage panel by at least one pair of rolls, said radiation image storage panel comprising a substrate, and a stimulable phosphor layer overlaid on said substrate and containing a binder and a stimulable phosphor dispersed therein, and provided with said flexible extension formed of a flexible material at a leading end portion and/or a rear end portion as viewed in a movement direction of said radiation image storage panel, and ii) rotating said rolls to move said radiation image storage panel.
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