Abstract:
A mirror attachment structure for an image-reading apparatus that includes a carriage for mounting a light source for illuminating a document and a photoelectric conversion device for receiving light from the document includes a reinforcement sheet metal member. The reinforcement sheet metal member includes first and second sections that do not lie in the same plane and a mirror that is fixed to one of the sections. The carriage supports the reinforcement sheet metal member. The reinforcement sheet metal member may be formed into a proper shape by bending. The mirror may be directly bonded to the reinforcement sheet metal member, mounted on a support attached to the reinforcement sheet metal member, or formed directly on the reinforcement sheet metal member by evaporating aluminum onto the reinforcement sheet metal member.
Abstract:
A first light source is adapted to illuminate a first object with first light. A first sensor includes a first light receiving element adapted to detect the first light by way of the first object. A second sensor includes a second light receiving element adapted to detect a second light which is externally inputted by way of a second object. A transparent member is disposed on at least one of a first optical path extending from the first object to the first sensor through a first lens and a second optical path extending from the second object to the second sensor through a second lens.
Abstract:
A document platen supports a document. A sensor module has a first sensor reading the document and a second sensor disposed parallel to the first sensor and reading the document. An adjustment member adjusts an inclination of the sensor module to the document platen.
Abstract:
A graphics card for smoothing the playing of video includes a video capture engine for receiving a digital video signal, a memory connected to the video capture engine for storing the digital video signals captured by the video capture engine, a video display engine connected to memory for receiving digital video signals stored in the memory, and a clock generator connected to the video capture engine and the video display engine for providing the same clock to the video capture engine and the video display engine so as to synchronize the signal receiving rates of the video capture engine and the video display engine.
Abstract:
An integrated image module for a document scanner includes a one piece die cast housing having a datum element and a support element. An imaging sensor array is enclosed in the housing. An array bias element urges the imaging sensor array against the datum element to provide accurate placement of the sensor array relative to the housing. A transport mechanism is attached to the housing so that the position of the transport mechanism accurately corresponds to the position of the imaging sensor array. The lens and the lamp for illumination are also attached to the housing so that the primary components of the imaging portion of the scanner are contained in a single module.
Abstract:
A lens array unit includes first and second lens arrays cooperative with each other. The first lens array is provided with a plurality of first convex lenses and a first transparent holder formed integral with the first lenses. Each of the first lenses has first and second lens surfaces. The second lens array is provided with a plurality of second convex lenses and a second transparent holder formed integral with the second lenses Each of the second lenses has third and fourth lens surfaces. The second lens array is attached to the first lens array so that the third lens surfaces face the second lens surfaces. The lens array unit further includes a light shield mounted on the first lens array. The light shield is formed with a plurality of through-holes each facing the relevant one of the first lens surfaces.
Abstract:
There is disclosed a light guide for guiding light from a light source in a longitudinal direction and radiating the light to illuminate an object to be illuminated, which includes a diffuser for diffusing the light from the light source along the longitudinal direction of the light guide, and a radiator for radiating the light diffused by the diffuser in a predetermined direction. By arranging the diffuser and the radiator so that a normal line passing through the center of the width of the diffuser is different from the predetermined direction at least in the vicinity of the light source when viewed in the longitudinal direction of the light guide, the illuminance distribution of the longitudinal direction of the light guide is uniformed.
Abstract:
A sensor frame for an image sensor is manufactured in the step of forming a sensor frame for an image sensor by extrusion molding so that a frame support portion for supporting the frame is formed above a lens array holding portion, and the step of removing the thus-formed sensor frame support portion by machining while leaving parts of the support portion located at the longitudinally corresponding to the upper ends of the lens array holding portion. Accordingly, machined surfaces subjected to the machining exist outside the hollow space where the sensor ICs are located.
Abstract:
A lens unit (U15) includes a housing (45), an upper and a lower lens arrays (A1null, A2null), and a first and a second prisms (4A, 4B). Each of the lens arrays includes a plurality of lenses, a light-shielding member (4), and a plurality of positioning projections, all of which are integral with each other. Downwardly traveling light which enters the housing (45) through a first slit (45c) formed at an upper portion of the housing (45) is directed upward by the first prism (4A) to pass through the two lens arrays (A1null, A2null). The light is then directed downward by the second prism (4B) to exit the housing through a second slit (45d) formed at a lower portion of the housing (45).
Abstract:
A contact image sensor (CIS) for scanning a document is disclosed. The CIS includes a housing having an opening, a first slide and a second slide, a light guide installed on the housing through the opening and the first slide for scanning the document and generating a reflective image, a rod lens installed on the housing through the opening and the second slide for receiving the reflective image and generating a focused image, a PCB installed on the housing and having a sensing array for transforming the focused image into an image signal, and a spring cover fixed on the opening for fixing the light guide and the rod lens in the housing to form the CIS.