摘要:
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.
摘要:
An image sensor unit includes a frame storing a linear illuminator that linearly illuminates a document, a rod lens array is used to form an image of light reflected from the document irradiated by the linear illuminator, and a printed circuit board on which a light-receiving sensor that converts light whose image has been formed by the rod lens array into an electrical signal is mounted. In the frame, a lens storage compartment, a linear illuminator storage compartment, and the linear illuminator are adjacently arranged substantially in parallel to each other in a longitudinal direction, with an inter-compartment portion formed in the frame interposed therebetween. At least one pin insertion opening is formed that extends from an inner wall of the lens storage compartment opposing the inter-compartment portion into an outside of the frame and through which a pressing pin is inserted, and in the inter-compartment portion, a face defining the lens storage compartment is formed as a vertical reference face with which a side plate of the rod lens array is brought into close contact for fixing. A notch used for applying an adhesive to the side plate of the rod lens array is disposed corresponding to the pin insertion opening and is formed to be open from the lens storage compartment to the linear illuminator storage compartment.
摘要:
In an image reading apparatus incorporating a CIS unit warped by heat shrinkage of a thermoplastic resin molded product, the optical distances from a read line to a photoelectric conversion element in the center and the two end portions in the longitudinal direction of the photoelectric conversion element are different. A thermally caulked combined structure is obtained by fixing an object to be fixed by thermal caulking by thermally deforming a plurality of caulking projections formed in the longitudinal direction of a molded product made of a thermoplastic resin and having a rectangular parallelepiped outer shape. Antiwarping grooves (15) are formed apart from the proximal portion of each caulking projection (12) of the molded product (4) before thermal caulking so as to sandwich the projection.
摘要:
In an image reading apparatus incorporating a CIS unit warped by heat shrinkage of a thermoplastic resin molded product, the optical distances from a read line to a photoelectric conversion element in the center and the two end portions in the longitudinal direction of the photoelectric conversion element are different. A thermally caulked combined structure is obtained by fixing an object to be fixed by thermal caulking by thermally deforming a plurality of caulking projections formed in the longitudinal direction of a molded product made of a thermoplastic resin and having a rectangular parallelepiped outer shape. Antiwarping grooves (15) are formed apart from the proximal portion of each caulking projection (12) of the molded product (4) before thermal caulking so as to sandwich the projection.
摘要:
A method of manufacturing a molding product of an image sensor unit having a molded product with a substantially rectangular parallelpiped outer shape and incorporating a substrate on which photoelectric conversion elements are arranged in line, includes the steps of forming a frame on the molded product to surround a periphery of the substrate, forming a plurality of caulking projections substantially linearly arranged on an upper surface of the frame in a longitudinal direction, with each caulking projection having a proximal portion extending from the frame, and forming a plurality of antiwarping grooves, with each groove being proximate to one of the caulking projections but spaced apart from its respective proximal portion. Additional steps include fitting the substrate to be fixed in the frame of the molded product, and bending the caulking projections by heat and pressure to fix the substrate in the frame.
摘要:
A protruding locking pawl is provided at an end of a light guide which corresponds to a first light input surface. A recessed locking portion is formed in a frame so that the locking pawl can be locked in the locking portion. A light blocking member is slidably loosely inserted into a position where the light blocking member covers a longitudinal end of the light guide which corresponds to a second light input surface. Even if expansion and contraction occurs in the longitudinal direction of the light guide, the design dimensions of a first gap A and a second gap B can be maintained; the first gap A is formed between the first light input surface and a first light source, and the second gap B formed between the second light input surface and a second light source. Therefore, possible leakage current can be prevented.
摘要:
A configuration is adopted in which an image sensor unit includes: a sensor substrate on which a plurality of photoelectric conversion elements are mounted; a light source that includes light-emitting elements and is for illuminating a document; a light guide that guides light from the light source from one end face in a longitudinal direction and linearly illuminates the document; a rod lens array imaging reflected light from the document on the sensor substrate; and a frame attaching each of these, and in which the frame detachably includes a spacer provided in proximity to the light source, and the spacer includes a light shielding roof elongated so as to cover the light source and the end of the light guide.
摘要:
An image sensor unit includes: a light source including a light emitting element on a light emitting surface; a light guide that causes light from the light source to be incident on a light incident surface facing to the light emitting surface, ejects the light from a light ejecting surface and illuminates a document; a rod lens array that images reflected light from the document; a sensor substrate on which a photoelectric conversion element is mounted, the photoelectric conversion element converting the reflected light imaged by the rod lens array into an electric signal; and a frame that supports the light source, the light guide, the rod lens array and the sensor substrate, wherein positioning sections are provided on an opposite side of the light emitting surface of the light source and at a part of the frame which is disposed at the opposite side of the light emitting surface.