Patent EP0209119A2 successfully refreshed from Google Patents.
EP0209119A2
Expired / Lapsed
EP
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Image read-out apparatus
Assignee: Fujifilm Holdings Corp
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Filing: 1986-07-15
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Granted: —
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Expires: 2006-07-15
Abstract
Abstract An image read-out apparatus includes a main scanning device for scanning a sheet carrying an image recorded thereon with a light beam in a main scanning direction and obtaining light carrying the image information from the sheet, a subscanning device for moving the sheet with respect to the light beam in a sub-scanning direction approximately normal to the main scanning direction, and a light detector for detecting the light obtained from the sheet. The light detector comprises a long photomultiplier having a light receiving face extending along the main scanning line and positioned close to the sheet.
Inventors
- 👤 Yuichi Fuji Photo Film Co.Ltd. Hosoi
- 👤 Satoshi Fuji Photo Film Co.Ltd. Arakawa
- 👤 Hideo Fuji Photo Film Co.Ltd. Ishizaka
- 👤 Terumi Fuji Photo Film Co.Ltd. Matsuda
- 👤 Kenji Fuji Photo Film Co.Ltd. Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 17:16
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/2012; G01T1/2014; H; H01; H01J; H01J43/00; H01J43/04; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/0281
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
100 words
An image read-out apparatus including a main scanning means for scanning a sheet carrying an image recorded thereon with a light beam in a main scanning direction and obtaining light carrying the image information from the sheet, a sub-scanning means for moving the sheet with respect to the light beam in a sub-scanning direction approximately normal to the main scanning direction, and a light detection means for detecting the light obtained from the sheet, wherein said light detection means comprises a long photomultiplier having a light receiving face extending along the main scanning line and positioned close to said sheet.
Claim 2
Dependent Claim
100 words
An image read-out apparatus including a main scanning means for scanning a sheet carrying an image recorded thereon with a light beam in a main scanning direction and obtaining light carrying the image information from the sheet, a sub-scanning means for moving the sheet with respect to the light beam in a sub-scanning direction approximately normal to the main scanning direction, and a light detection means for detecting the light obtained from the sheet, wherein said light detection means comprises a long photomultiplier having a light receiving face extending along the main scanning line and positioned close to said sheet.
Claim 3
Dependent Claim
15 words
An apparatus as defined in Claim 1 wherein said photomultiplier is a box type photomultiplier.
Claim 4
Dependent Claim
16 words
An apparatus as defined in Claim 1 wherein said photomultiplier is a Venetian blind type photomultiplier.
Claim 5
Dependent Claim
17 words
An apparatus as defined in Claim 1 wherein said photomultiplier is covered by a light shielding case.
Claim 6
Dependent Claim
57 words
An apparatus as defined in Claim 1 wherein said sheet is a stimulable phosphor sheet carrying a radiation image stored thereon, said light beam is stimulating rays for causing said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and said light detection means detects the light emitted by said stimulable phosphor sheet.
Claim 7
Dependent Claim
95 words
An apparatus as defined in Claim 5 wherein said light detection means is provided with a filter for selectively transmitting light having a wavelength within the wavelength range of the light emitted by said stimulable phosphor sheet and/or a light guide member for guiding the light, which is emitted by said stimulable phosphor sheet and enters from a light input face of said light guide member positioned to face said stimulable phosphor sheet, to said light receiving face of said photomultiplier, said filter and/or said light guide member being positioned on said light receiving face.
Claim 8
Dependent Claim
17 words
An apparatus as defined in Claim 3 wherein said light guide member is a light guide liquid.
Claim 9
Dependent Claim
16 words
An apparatus as defined in Claim 7 wherein said light guide liquid is an oily liquid.
Claim 10
Dependent Claim
23 words
An apparatus as defined in Claim 8 wherein said oily liquid is selected from the group consisting of silicone oil and liquid paraffin.
Claim 11
Dependent Claim
44 words
An apparatus as defined in Claim 1 wherein said light detection means further comprises an optical reflection element extending along said main scanning line in the vicinity thereof for reflecting the light obtained from said sheet towards said light receiving face of said photomultiplier.
Claim 12
Dependent Claim
57 words
An apparatus as defined in Claim 10 wherein said sheet is a stimulable phosphor sheet carrying a radiation image stored thereon, said light beam is stimulating rays for causing said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and said light detection means detects the light emitted by said stimulable phosphor sheet.
Claim 13
Dependent Claim
95 words
An apparatus as defined in Claim 11 wherein said light detection means is provided with a filter for selectively transmitting light having a wavelength within the wavelength range of the light emitted by said stimulable phosphor sheet and/or a light guide member for guiding the light, which is emitted by aid stimulable phosphor sheet and enters from a light input face of said light guide member positioned to face said stimulable phosphor sheet, to said light receiving face of said photomultiplier, said filter and/or said light guide member being positioned on said light receiving face.
Claim 14
Dependent Claim
74 words
An apparatus as defined in Claim 1 wherein said light detection means further comprises an integrating cylinder provided with a slit extending in said main scanning direction for allowing passage of said light beam therethrough, and an aperture opening above the section including said main scanning line on said sheet, said integrating cylinder being positioned so that said light receiving face of said photomultiplier is positioned at the inner surface of said integrating cylinder.
Claim 15
Dependent Claim
57 words
An apparatus as defined in Claim 13 wherein said sheet is a stimulable phosphor sheet carrying a radiation image stored thereon, said light beam is stimulating rays for causing said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and said light detection means detects the light emitted by said stimulable phosphor sheet.
Claim 16
Dependent Claim
95 words
An apparatus as defined in Claim 14 wherein said light detection means is provided with a filter for selectively transmitting light having a wavelength within the wavelength range of the light emitted by said stimulable phosphor sheet and/or a light guide member for guiding the light, which is emitted by said stimulable phosphor sheet and enters from a light input face of said light guide member positioned to face said stimulable phosphor sheet, to said light receiving face of said photomultiplier, said filter and/or said light guide member being positioned on said light receiving face.
Claim 17
Dependent Claim
79 words
An apparatus as defined in Claim 1 wherein said light receiving face of said photomultiplier extends in parallel with said sheet above and along said main scanning line, and said light detection means further comprises an optical reflection element for reflecting said light beam, which enters between said photomultiplier and said sheet and impinges upon said optical reflection element, under said light receiving face of said photomultiplier and making said light beam impinge upon said sheet approximately normal thereto.
Claim 18
Dependent Claim
74 words
An apparatus as defined in Claim 16 wherein said light detection means further comprises an integrating cylinder provided with a slit extending in said main scanning direction for allowing passage of said light beam therethrough, and an aperture opening above the section including said main scanning line on said sheet, said integrating cylinder being positioned so that said light receiving face of said photomultiplier is positioned at the inner surface of said integrating cylinder.
Claim 19
Dependent Claim
57 words
An apparatus as defined in Claim 16 wherein said sheet is a stimulable phosphor sheet carrying a radiation image stored thereon, said light beam is stimulating rays for causing said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and said light detection means detects the light emitted by said stimulable phosphor sheet.
Claim 20
Dependent Claim
57 words
An apparatus as defined in Claim 17 wherein said sheet is a stimulable phosphor sheet carrying a radiation image stored thereon, said light beam is stimulating rays for causing said stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and said light detection means detects the light emitted by said stimulable phosphor sheet.
Claim 21
Dependent Claim
95 words
An apparatus as defined in Claim 18 wherein said light detection means is provided with a filter for selectively transmitting light having a wavelength within the wavelength range of the light emitted by said stimulable phosphor sheet and/or a light guide member for guiding the light, which is emitted by said stimulable phosphor sheet and enters from a light input face of said light guide member positioned to face said stimulable phosphor sheet, to said light receiving face of said photomultiplier, said filter and/or said light guide member being positioned on said light receiving face.
Claim 22
Dependent Claim
49 words
An apparatus as defined in Claim 18 wherein said optical reflection element is a dichroic mirror for reflecting light having a wavelength within the wavelength range of said stimulating rays and transmitting light having a wavelength within the wavelength range of the light emitted by said stimulable phosphor sheet.
Claim 23
Dependent Claim
49 words
An apparatus as defined in Claim 20 wherein said optical reflection element is a dichroic mirror for reflecting light having a wavelength within the wavelength range of said stimulating rays and transmitting light having a wavelength within the wavelength range of the light emitted by said stimulable phosphor sheet.
References Cited (Backward Citations)
No citation records indexed.
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