Abstract:
An image scanning unit includes at least two lens groups for imaging a reflected image of a manuscript on a lined photoelectric conversion element (12), lens barrels (14, 15) for holding the lenses, respectively, and constituting an imaging lens system (16), a base member (10) on which the lined photoelectric conversion element (12) and the lens barrels (14, 15) are disposed, and intermediate holding members (13, 19) for mounting at least one of the lens barrels (14) and the lined photoelectric conversion element (12) on the base member (10).
Abstract:
A simplified image sensor module includes a substrate, a photosensitive chip, a plurality of wires, and transparent glue. The substrate has an upper surface formed with a plurality of first connection points, and a lower surface formed with a plurality of second connection points. The photosensitive chip has a plurality of bonding pads and is mounted to the upper surface of the substrate. The wires electrically connect the bonding pads of the photosensitive chip to the first connection points of the substrate, respectively. The transparent glue is arranged on the upper surface of the substrate to encapsulate the photosensitive chip and is formed with a convex portion corresponding to the photosensitive chip. The photosensitive chip may receive focused optical signals focused by the convex portion of the transparent glue.
Abstract:
A finely adjustable optical mechanism includes a base, a lens seat mounted on the base, a mirror set mounted on the base. A lens and an image sensor are mounted on the lens seat. A link is provided between the lens seat and the base. It is possible to move the lens seat relative to the base by rotating the link to move the lens seat or the base. Accordingly, the relatively positional relationship between the lens seat and the base can be finely adjusted.
Abstract:
An image reading apparatus is provided for reading out images printed on a document. The apparatus includes a casing elongated in the primary scanning direction and a transparent cover supported by the casing. In image-reading operation, the cover is held in sliding contact with a document at an image reading line. The apparatus further includes an insulating substrate attached to the casing, light sources for illuminating the image reading line, light sensors for receiving reflected light coming from the image reading line and a luminosity adjuster supported by the casing for equalizing luminosity along the image reading line.
Abstract:
An apparatus and method for a large-format scanner. In a preferred embodiment, a device for scanning an image on a medium having a width and providing signals representing the image includes a frame, a transport, a lamp and a plurality of sensors. The transport is mounted to the frame and is used for moving the medium along a first axis transverse to the medium's width. The lamp illuminates the medium. The lamp has a first end and a second end wherein the first end and the second end are folded back approximately 180 degrees, so that the lamp produces uniform brightness across the width of the medium. The plurality of sensors are proximate to the transport, span the medium's width, and the sensors provide a signal representative of a portion of the image within the illuminated portion of the medium. The device may also include a focal length adjustor, mounted to the frame between the sensors and the transport, for adjusting the distance between the medium and the sensors. In another embodiment, a method for focusing a device for scanning an image on a medium having a plurality of sensors each sensor having a length is presented. A scan pattern is placed into the device for scanning which creates an output of the scan pattern. The scan pattern has black dots and white spaces, where the black dots are approximately the length of a sensor, and the white spaces are positioned between the black dots. The white dots are of such a size that the black dots are spaced apart at a distance which is greater than the length of a sensor. The output of the scan pattern is displayed and the focal length between the sensor and the medium is changed based on the output of the scan pattern so that at least one sensor produces a signal which is displayed as a peak black reading.
Abstract:
In an imaging system having at least two optically butted CCD sensors disposed in angular relation to each other and onto which light images are projected by means of a light beam splitter, the correct spacial position of the sensors is determined providing the beam splitter with mounting surfaces on which the respective sensors are mounted and the sensors with lateral surfaces, and utilizing mounting members for the opposite ends of each sensor, each mounting member having a base surface and a supporting surface extending in true rectangular fashion thereon. The base surface of each mounting member is adhesively bonded to one of the mounting surfaces of the beam splitter and its supporting surface is adhesively bonded to a lateral surface of a sensor, such bonding being effected after each sensor has been correctly aligned.
Abstract:
A modular image sensor array is disclosed which includes a plurality of tiles each of which has an image sensor mounted thereon. The tiles are mounted on a base plate such that the image sensors form a predetermined pattern. In order to precisely locate the tiles relative to each other and to provide for the replacement of defective tiles, the tiles are assembled in an interlocking pattern on the base plate. The top surface of the tiles is formed by ceramic plates, and electrical conductors for the image sensors are formed on one of the ceramic plates. A transparent cover is mounted over all of the image sensors in the array.
Abstract:
A laser beam scanning device which includes a mounting arrangement for securely holding at fixed locations along an optical path of a laser beam, a device for generating laser beams, a collimator, a device for deflecting the laser beams and for scanning a predetermined region with the reflected laser beams, and a device for regulating the scanning speed of the laser beams so that the scanning speed will be substantially uniform in the above predetermined region, as an integrally connected unit.
Abstract:
An image reading apparatus includes: a contact glass setting a manuscript thereon; an image sensor extending in a first direction and having a reading surface which faces the contact glass for reading an image from the manuscript on the contact glass; a rail member extending inside the apparatus main body in a second direction perpendicular to the first direction; a carriage having a sensor container to contain the image sensor, a taper end portion formed in an end portion in the first direction to become smaller in height toward the end side, and an opening formed in the bottom of the sensor container on the taper end portion side; a biased portion adjacent to the reading surface of the image sensor in the second direction; and a biasing member biasing the image sensor toward the contact glass via the biased portion.
Abstract:
An image reading apparatus includes: a contact glass setting a manuscript thereon; an image sensor extending in a first direction and having a reading surface which faces the contact glass for reading an image from the manuscript on the contact glass; a rail member extending inside the apparatus main body in a second direction perpendicular to the first direction; a carriage having a sensor container to contain the image sensor, a taper end portion formed in an end portion in the first direction to become smaller in height toward the end side, and an opening formed in the bottom of the sensor container on the taper end portion side; a biased portion adjacent to the reading surface of the image sensor in the second direction; and a biasing member biasing the image sensor toward the contact glass via the biased portion.