Patent application number | Description | Published |
20110052085 | LIGHT DETECTION DEVICE AND SHEET PROCESSING APPARATUS INCLUDING THE SAME - An exemplary aspect of the present disclosure, there is provided a light detection device including a first detecting portion to detect fluorescence from a first detection position on a conveyor path along which a sheet is conveyed, a second detecting portion to detect afterglow from a second detection position on the conveyor path along which the sheet is conveyed, a lighting portion to apply excitation light over a range including the first detection position and not including the second detection position, a first reference member which includes fluorescent material that emits fluorescence by being excited by the lighting portion and which emits reference light toward the first detecting portion, a second reference member to emit reference light toward the second detecting portion when the sheet is present at the second detection position, the reference light not influencing a result of detection by the second detecting portion, and a correction controller to correct a result of detection by the first detecting portion based on the reference light detected by the first detecting portion and to correct a result of detection by the second detecting portion based on the reference light detected by the second detecting portion. | 03-03-2011 |
20110108469 | LIMPNESS DETECTING DEVICE, LIMPNESS DETECTING METHOD, AND SHEET HANDLING APPARATUS INCLUDING LIMPNESS DETECTING DEVICE - According to one embodiment, a limpness detecting device includes a transmitting unit to irradiate an acoustic wave towards a conveyed sheet to excite a Lamb wave, a first receiving unit to detect a leaky wave of the Lamb wave emitted from a front surface of the sheet, a second receiving unit to detect a leaky wave of the Lamb wave emitted from a back surface of the sheet, a comparison data calculating unit to calculate comparison data based on the signal detected by the first receiving unit and the signal detected by the second receiving unit, and an intactness judgment unit to compare the comparison data calculated by the comparison data calculating unit with a preset standard value and judge whether the sheet is an intact bill or not, based on a result of the comparison. | 05-12-2011 |
20120061901 | ULTRASONIC DETECTING DEVICE AND SHEET HANDLING APPARATUS COMPRISING ULTRASONIC DETECTING DEVICE - According to one embodiment, an ultrasonic detecting device includes a transmitter arranged at a predetermined angle with respect to a conveying plane on which a sheet is conveyed, the transmitter emitting ultrasonic waves towards the conveying plane; a receiver provided with a plurality of channels for detecting the ultrasonic waves, the receiver detecting the ultrasonic waves incident on the channels; and a dividing member to shield the receiver from diffraction waves of the ultrasonic waves emitted from the transmitter, the diffraction waves being diffracted at an edge of the sheet that delimits the sheet in a direction perpendicular to a conveying direction of the sheet. | 03-15-2012 |
20130094043 | IMAGE READING DEVICE AND SHEET HANDLING APPARATUS - An image reading device includes an illuminating means for illuminating a reading position through which a sheet conveyed by conveying means passes, optical reading means for reading reflected light of the sheet illuminated by the illuminating means when the sheet passes the reading position, a white reference plate disposed opposite to the optical reading means with the reading position sandwiched therebetween, and moving structure means for moving a placement position of the illuminating means based on a placement position of the white reference plate, and storage means is included for storing information in a searchable manner. | 04-18-2013 |
20130142414 | LIGHT DETECTION DEVICE AND SHEET PROCESSING APPARATUS INCLUDING THE SAME - An exemplary aspect of the present disclosure, there is provided a light detection device including a first detecting portion to detect fluorescence from a first detection position on a conveyor path along which a sheet is conveyed, a second detecting portion to detect afterglow from a second detection position on the conveyor path along which the sheet is conveyed, a lighting portion to apply excitation light over a range including the first detection position and not including the second detection position, a first reference member which includes fluorescent material that emits fluorescence by being excited by the lighting portion and which emits reference light toward the first detecting portion, a second reference member to emit reference light toward the second detecting portion when the sheet is present at the second detection position, the reference light not influencing a result of detection by the second detecting portion, and a correction controller to correct a result of detection by the first detecting portion based on the reference light detected by the first detecting portion and to correct a result of detection by the second detecting portion based on the reference light detected by the second detecting portion. | 06-06-2013 |
20140063567 | IMAGE READING APPARATUS AND SHEET PROCESSING APPARATUS - According to one embodiment, an image reading apparatus includes an illumination unit to irradiate a sheet that is conveyed by a conveyance unit with visible light and infrared light, an imaging unit to receive visible light and infrared light reflected from the sheet and to capture a visible image and an infrared image, and a background member including an infrared light low reflective part that is positioned within an imaging range of the imaging unit so as to overlap at least a side edge portion of the sheet and that diffusely reflects visible light and reflects infrared light at a lower reflectance than the sheet. | 03-06-2014 |
20140168719 | IMAGE READING APPARATUS AND SHEET PROCESSING APPARATUS - According to one embodiment, an image reading apparatus that reads an image of a sheet conveyed by a conveyance unit includes a first illumination unit to irradiate the sheet with visible light, a second illumination unit to irradiate the sheet with visible light and infrared light from an angle different from that of the first illumination unit, and an imaging unit to receive visible light and infrared light reflected from the sheet and to capture a visible image and an infrared image. | 06-19-2014 |
20140285858 | IMAGE READING APPARATUS AND SHEET PROCESSING APPARATUS - According to one embodiment, an image reading apparatus includes an illumination unit to irradiate a surface of a sheet with light from an oblique direction at a predetermined angle of incidence, a reading unit to receive light reflected from a reading range on the sheet and to acquire a sheet image, and a reflecting mirror that is disposed in a direction of an angle of emission that is equal to the angle of incidence, that has a specular surface that is parallel to the reading range, and that reflects light reflected from the sheet toward the reading range with the specular surface. | 09-25-2014 |
20140305846 | FLUORESCENCE AND AFTERGLOW DETECTION DEVICE AND SHEET PROCESSING APPARATUS - According to one embodiment, there is provided a fluorescence and afterglow detection device to detect fluorescence and afterglow on a sheet printed with fluorescent ink and phosphorescent ink while the sheet is being conveyed. | 10-16-2014 |
20150054212 | SHEET DISCRIMINATING DEVICE AND SHEET PROCESSING APPARATUS - According to one embodiment, a sheet discriminating device includes a first conveying structure and a second conveying structure that are arranged at a predetermined distance from each other in a conveying direction of a sheet and that are configured to convey the sheet, and an information detecting means that is provided between the first conveying structure and the second conveying structure such that a detection range thereof is not blocked, and that is configured to detect information from the sheet. | 02-26-2015 |