Abstract:
An apparatus and a method adapted to be used in manufacturing an image scanning apparatus for calibrating a reflective lens on a carriage are disclosed. A calibrating device has thereon a first set of three projective points from three point light beams and a first set of three calibrating points corresponding to three point light sources. The calibrating device further includes thereon a second set of three projective points and a second set of three calibrating points for matching each of the projective points on the calibrating device with a corresponding one of the calibrating points by adjusting an angle and a position of the reflective lens on the carriage so as to achieve a calibrating function.
Abstract:
An improved lens focusing and referencing arrangement for an imaging system of the type which may include a photosensor array. The imaging system housing may include reference surfaces configured such that they contact the lens only near the ends thereof in order to minimize the effect of any irregularities in the reference surfaces.
Abstract:
Disclosed herein is an improved imaging system of the type having a photosensor package and at least one optical component, e.g, a lens, mounted within an optical assembly housing. The photosensor package may be mounted to a substrate, such as a printed circuit board, in a conventional manner. The substrate, however, may be formed having a shorter length than the photosensor package. This shorter length causes the ends of the photosensor package to extend beyond the substrate and, thus, be exposed. The exposed ends of the photosensor package, in turn, allow the photosensor package to be directly referenced to reference surfaces formed on the optical assembly housing.
Abstract:
A mirror support device arranged in both ends of a stick-like mirror for holding the mirror including an inner side plate, comprising a mirror insertion opening formed in the inner side plate, the mirror insertion opening for inserting an end of a mirror; an outer side plate connected to the inner side plate, comprising: a mirror stopper plate for regulating positions of a right and a left end face of the mirror inserted into the mirror insertion opening; and a clip hole, the mirror stopper plate and the clip hole being formed in the outer side plate; and a clip for fixing the mirror, the clip being inserted into the clip hole from a same direction as inserting direction of the mirror.
Abstract:
An image reading apparatus includes an array substrate in which a plurality of point light sources is mounted along the main scanning direction, a light guide member disposed on a surface of the array substrate that mounts the plurality of point light sources, and guiding light from the plurality of point light sources to the document surface, a frame for fixing the light guide member and the array substrate, a positioning unit that determines the positional relationship of the frame with the light guide member and the array substrate in a configuration in which the incident surface of the light guide member is in proximity to or in contact with the plurality of point light sources; and an image reading unit that uses reflected light when illuminating light from the plurality of point light sources through the light guide member onto the document surface to thereby read the document image.
Abstract:
In a frame 12 of an image sensor unit, a lens storage compartment 14 and a linear illuminator storage compartment 32 are adjacently arranged substantially in parallel to each other in the longitudinal direction with an inter-compartment portion 33 interposed therebetween, a pin insertion opening 21 that extends from the lens storage compartment 14 to an outside of the frame is formed, a vertical reference face 23 with which a rod lens array 9 is brought into close contact is formed on the inter-compartment portion 33, and a notch 15 that is used for applying an adhesive 13 is formed so as to be open from the lens storage compartment 14 to the linear illuminator storage compartment 32.
Abstract:
A scanner device and an image forming apparatus, each having a shading correction unit are disclosed. The shading correction unit is implemented by a lens block, including a fixer and a wall. The fixer fixes a position of the lens block. The wall, connected to the fixer at a connecting point, has an opening. The minimum distance between the circumference line of the opening and the connecting point is larger than a thickness of the wall.
Abstract:
An improved structure of carriage module has a datum board with a very flat surface, a linear light-source, a pair of side boards and a light-transforming module. The datum board has a flat-rigid connecting surface formed with a plurality of screw holes therein. The linear light-source is fixed at a front edge of the datum board for providing light. The side boards are respectively disposed on two sides of the connecting surface and assembled with a plurality of reflecting mirrors therebetween for reflecting light. The light-transforming module is assembled on a middle portion of the connecting surface for receiving an image and transforming the image into an electric signal. The datum board has an axle sleeve mounted on one side thereof for the carriage module to slide thereon.
Abstract:
A positioning mechanism for reflectors in a scanner is capable of tool-less assembling and precise positioning. The mechanism mainly includes a carrier, some angular positioning members, and resilient arms. The carrier is a plate-like member for mounting an optical assembly. The angular positioning members are mounted on the carrier and formed with cutoffs of supporting surfaces. The resilient arms extend from the carrier to outer sides of the supporting surfaces of the angular positioning members. The clearance of the end of resilient arm to the supporting surface is less than the thickness of the reflector to position the reflector simply, easily and precisely.
Abstract:
An apparatus for reading images includes: a first carriage having a lamp for exposing a manuscript and a first reflection mirror for reflecting reflected light from the manuscript; a second carriage including second and third reflection mirrors for returning the reflected light from the first carriage; an image forming optical unit for producing an image of the reflected light from the third reflection mirror on an image sensor, a body casing accommodating at least the first and second carriages, the image forming optical unit, and the image sensor, being covered on top thereof by a manuscript glass, and including a hole covered by a removable member on part of the surface thereof; and a mechanism for adjusting mirror angle for adjusting the angle of the second reflection mirror, wherein the mechanism for adjusting mirror angle is capable of adjusting the angle of the second reflection mirror from the hole.