Abstract: An image reading device includes: a platen on which a document is placed; a platen cover openable and closable with respect to the platen; a cover-open sensor which detects a fact that the open/close angle of the platen cover has passed a predetermined angle from a close state; a CCD line sensor including charge coupled devices (CCD) arranged for recording a variation in distribution for a fixed period of time of incident light when detecting passing of the platen cover; a variation amount calculator which calculates a variation amount of incident light at each distribution point on the basis of a variation in distribution recorded by the CCD line sensor; and a variation amount determination unit which determines whether or not a variation amount calculated by the variation amount calculator exceeds a predetermined threshold.

Abstract: An image sensor unit includes: a light condenser that collects light from the reading target object; an image sensor that receives the collected light collected and converts it into an electric signal; a housing having an elongated shape housing the light condenser and image sensor; and an elongated rigid member provided on a side surface elongated in an elongated direction of the housing. The housing has a multiple positions for fixation on the side surface. The rigid member is fixed to the side surface of the housing at at least two positions. A warping amount adjusting part is provided between the positions at which the rigid member is fixed. The warping amount adjusting part is capable of holding warping amount in the direction of the optical axis of the light condenser of the housing by intervention of a warping amount adjusting member between the rigid member and the housing.

Abstract: An image reading apparatus for separating and conveying documents from a bundle of documents, causing the document to pass through a reading position, and reading an image from the document, includes: a reading translucent plate; a rotation member capable of rotating around a shaft; and a rotation driver that rotates the rotation member, wherein in the rotation member, each of: a cleaning member; a white reference area; and an end portion detection area is formed partially with regard to a circumferential direction, the cleaning member and the end portion detection area are arranged adjacent to each other, the rotation driver is arranged so that the end portion detection area faces an opposing surface, and the rotation member is rotated in a paper interval period from when a trailing edge of the document passes the reading position to when a leading edge of a subsequent document reaches the reading position.

Abstract: An image scanner has an operation clock generator, a photoelectric converter, an AD converter configured to convert the analog pixel signals serially output by the photoelectric converter to digital pixel data by sampling the analog pixel signals in accordance with an operation clock generated by the operation clock generator, a data generator configured to generate read image data representing an read image of the original based on the pixel data converted by the AD converter, a resolution setter configured to set a reading resolution in the sub scanning direction, and a line period determiner configured to determine the line period to be (integer+decimal value) times a modulation period based on the reading resolution set by the resolution setter, the modulation period being inversion of the modulation frequency. The integer is greater than one and the decimal value is determined based on the reading resolution.

Abstract: Provided are a projection-type display device, a safe-driving support method, and a non-transitory computer readable recording medium storing a safe-driving support program capable of securing safety while providing sufficient information to a driver even in a situation where a field of vision in a traveling direction of a motor vehicle is poor. An HUD includes a light modulation unit that modulates light emitted from a light source unit; a projection unit that projects the light modulated by the light modulation unit onto a combiner; a first image information generation unit that generates first image information and outputs the first image information to the light modulation unit; a second image information generation unit that generates second image information and outputs the second image information to a display device; and a control unit that controls operations of the first image information generation unit and the second image information generation unit.

Abstract: A photoelectric conversion element comprises: a plurality of pixels, each of which performs photoelectric conversion and outputs an analog signal; an analog processing unit that sequentially processes, on a pixel-to-pixel basis, the analog signals output from a pixel group including the pixels; and a signal supply unit that supplies a signal needed for preliminary operation to the analog processing unit so as to enable the analog processing unit to perform the preliminary operation before the analog processing unit starts to process the analog signals output from the pixel group.

Abstract: An illumination device includes a light guide member having a bar-like shape and a light source disposed so as to face an end surface of the light guide member. The illumination device guides light from the light source in the light guide member and emits the light from a light emission surface of the light guide member formed in a longitudinal direction of the light guide member. The light emission surface includes a first light diffusing portion that is formed in a first portion near the light source and that has a protruding/recessed shape, and a second light diffusing portion that is formed in a second portion adjacent to an end of the first light diffusing portion, the end being away from the light source. The second light diffusing portion has a protruding/recessed shape and has lower light diffusivity than the first light diffusing portion.

Abstract: An image reading apparatus comprises a housing having a document table glass, a scanner section, a cover member, an adsorption board, a driving section and a controller. The cover member is connected to the housing to be rotatable around a first rotation center line with respect to the housing between a closed position where the document table glass is covered and an open position. The adsorption board, arranged in a part at a housing side at the time the cover member is positioned at the closed position, has an adsorption surface adsorbing the original document, and is connected to the cover member to be rotatable around a second rotation center line parallel to the first rotation center line. The driving section adsorbs the original document on the adsorption surface of the adsorption board.

Abstract: A reading module has a light source, an optical system imaging, as image light, reflected light of the light radiated from the light source to the document, and a sensor converting the image light imaged by the optical system into an electrical signal. The optical system has a mirror array in which reflection mirrors are coupled together in an array in the main scanning direction and an aperture stop portion having a first aperture adjusting the amount of image light reflected from a reflection mirror and a second aperture shielding stray light that enters the first aperture from an adjacent reflection mirror. The second aperture is arranged at such a position as to be able to shield stray light passing through a boundary between the reflection mirrors and the center of the first aperture when the mirror array contracts to the maximum extent in the main scanning direction.

Abstract: A reading module has a light source, an optical system, and a sensor. The optical system images, as image light, reflected light of light radiated from the light source to a document. In the sensor, the image light imaged by the optical system is converted into an electrical signal. The optical system has a mirror array and an aperture stop portion. In the mirror array, reflection mirrors are coupled together in an array in the main scanning direction. The aperture stop portion has a first aperture adjusting the amount of the image light reflected from a reflection mirror and a second aperture shielding stray light entering the first aperture from an adjacent reflection mirror. Between the first and second apertures, a reflection reduction mechanism is provided that reduces reflection, toward the first aperture, of light other than the image light traveling from the second to first aperture.

Abstract: An image reading device has a reading module including a light source, an optical system having a mirror array where reflection mirrors are coupled together in the main scanning direction and an aperture stop portion, a sensor where imaging regions for converting the image light imaged by the optical system into an electrical signal are arranged, and a housing, and has a reference drawing pattern determining connection positions between the imaging regions. The reference drawing pattern is composed of a plurality of pixel cut lines arranged to correspond to boundary lines between the reflection mirrors. The optical system is fixed on the housing at one point in the main scanning direction, and the pixel cut lines are arranged such that their distances from the boundary lines in the main scanning direction increase the farther away from the fixed position of the optical system in the main scanning direction.

Abstract: An image reading device includes an angle restriction part 212a that restricts an inclination angle with respect to a document table glass (203) when viewed from a sub-scanning direction of a flat cable (214) such that a contact portion is biased to one side of the flat cable (214) in a main scanning direction when an upper surface part of the flat cable (214) contacts with the document table glass (203) with movement of an image reading unit (210).

Abstract: Regarding a restricting member that includes a contact face configured to be brought into contact with at least one portion of edges of a bundle of media mounted on a medium mounting section, and that is configured to be switched to either a blocking attitude for blocking advancement of the edges of the bundle of media into a nip portion between a feeding roller and a separating roller or an opening attitude for permitting the advancement of the edges of the bundle of media into the nip portion, the restricting member allows, in the blocking attitude, an edge shape of the bundle of media in contact with the contact face to be formed into a shape that fills in a tapered space tapering toward the nip portion.

Abstract: Methods, computer program products, and systems are presented. The method computer program products, and systems can include, for instance: obtaining image data representing page content of a physical book; running a character recognition process to process the image data for providing a text string of machine encoded text corresponding to text of the physical book; identifying within a data repository that stores one or more electronic book a string of text of an electronic book that matches the text string of machine encoded text; and based on the identifying, digitally bookmarking the electronic book.

Abstract: Methods, computer program products, and systems are presented. The method computer program products, and systems can include, for instance: obtaining image data representing page content of a physical book; running a character recognition process to process the image data for providing a text string of machine encoded text corresponding to text of the physical book; identifying within a data repository that stores one or more electronic book a string of text of an electronic book that matches the text string of machine encoded text; and based on the identifying, digitally bookmarking the electronic book.

Abstract: A plurality of light sources, an optical deflector including a rotational member configured to be rotational about an axis of rotation thereof, and a plurality of reflective members, are provided in a light scanning unit for an image forming apparatus. The optical deflector is arranged to deflect light incident obliquely from the plurality of light sources and the plurality of reflective members are arranged to reflect the light deflected by the optical deflector to a plurality of surfaces, which are to be scanned and correspond to the plurality of light sources, and arranged such that scan lines on opposite surfaces with respect to the axis of rotation of the optical deflector among the plurality of surfaces to be scanned are bent in the same direction.

Abstract: A pair of edge guides provided on a medium mounting section of a medium feeding apparatus each include a volume limiter spaced from the mounting surface of the medium mounting section and extending from the guide surface of at least one of the pair of edge guides in a direction intersecting the guide surface, the volume limiter including a limiting surface that limits a number of sheets mounted on the medium mounting section. The limiting surface includes a groove extending in the feed direction, at a position between a corner portion formed at an intersection of an end portion of the limiting surface in the width direction and the guide surface, and the other end portion of the limiting surface, and configured to insert at least a part of a side edge of the medium, to thereby restrict the side edge from moving in the width direction.

Abstract: An image forming apparatus includes an image forming unit configured to form a predetermined pattern image on a sheet, a notifying unit configured to provide a notification of an orientation for placing the sheet on which the predetermined pattern image is formed by the image forming unit, on a placement portion, a reading unit configured to read the sheet on a line to line basis, to generate image data, and a detection unit configured to detect a streak-shaped image extending in a direction along a predetermined edge of the sheet, by analyzing the image data generated by reading the sheet by the reading unit, wherein the notifying unit provides a notification of a placement orientation for allowing the sheet, on which the predetermined pattern image is formed, to be read on a line to line basis, the line extending in a direction along the predetermined edge.

Abstract: An image reading apparatus includes a reading unit, a cover, and a hinge mechanism connecting the cover to the reading unit pivotably about a pivot axis which extends in a first direction. A center of gravity of the cover is closer to a first end of the cover in a first direction than to a second end of the cover. A first hinge is spaced from the center of gravity toward the second end of the cover in the first direction. A second hinge is disposed closer to the center of gravity in the first direction than the first hinge. The first hinge includes a base member disposed movably in the reading unit, a pivot member coupled to the cover, and an urging member exerting an urging force between the base member and the pivot member so as to maintain the cover at a pivoted position.

Abstract: According to exemplary methods, a selection of a paper type for producing an image is received. A database of background suppression values associated with paper types is searched. Responsive to not finding a background suppression value associated with the paper type, the database is updated for the paper type. According to the method of updating, a page of the paper type is scanned and image data obtained by scanning the page is analyzed. Background luminance for the page is determined based on analyzing the image data. A background suppression value is calculated for the page based on the background luminance. The paper type and the background suppression value for the page are added to the database. The background suppression value is associated with the paper in the database.