Abstract:
The present invention discloses a penta-mirror multi-reflection image scanning module including at least one light source, five reflecting mirrors, a pickup lens, an image sensor, and a frame. The reflecting mirrors reflect a light beam from a document and a plurality of reflecting mirrors reflect a light beam of the document twice or more to change the light beam direction along light path, and satisfy specific optical conditions. The total tracking length (TTL) may be adjusted through an arrangement of the distance of the five reflecting mirrors, but may not be adjusted through the angle of the five reflecting mirrors. Therefore, the present invention not only increases the field of depth by increasing the length of optical path in a limited space, but also facilitates the assembling to adapt to different tracking lengths.
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 light-emitting device includes a light-emitting element and a light-guiding member for causing light from the light-emitting element entering into it through one surface thereof. The light-emitting element includes a lead member with a light-emitting element chip mounted thereon and a molded member to which the lead member is secured. The lead member has a metallic part extending from the molded member, and the metallic part is bent. The thus arranged light-emitting device has an excellent heat release capability. An image reading apparatus using the light-emitting device is also provided.
Abstract:
In an image reader, an optical scanning unit reads an original image on an original document sheet. In the optical scanning unit, a lighting device is detachably attached to a housing to emit light toward the original document sheet. The housing houses a reading device to read the light reflected by the original document sheet. A shield member is detachably attached to the housing to shield the reading device from the lighting device to form a space for the reading device inside the housing. A slit is provided in the shield member to guide the light reflected by the original document sheet to the space for the reading device. A second positioner is provided on the shield member to engage a first positioner provided in the housing to position the reading device with respect to the lighting device.
Abstract:
Connections from a client to respective ones of a plurality of application instances that receive data from a shared communication protocol stack are assigned by defining an affinity between the client and a corresponding one of the plurality of application instances. Connection requests received from the client at the shared communication protocol stack are assigned to the corresponding one of the plurality of application instances if an affinity is defined between the client and the corresponding one of the plurality of application instances. Connection requests received from the client at the shared communication protocol stack are distributed to selected ones of the plurality of application instances if an affinity is not defined between the client and the corresponding one of the plurality of application instances.
Abstract:
An image reader (A) includes a conductive case (1), a substrate (3) and a plurality of light receiving elements. The image reader (A) further includes a first electrode (10) formed at the case (1) and a second electrode (11) formed on the substrate (3). The case (1) is formed with an accommodation recess (1g), in which a conductive contact member (20) is provided. The conductive contact member (20) is held in contact with the first electrode (10) and the second electrode (11) to electrically connect the two electrodes to each other while separating the first electrode (10) and the second electrode (11) from each other.
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 light guide emits lights incident on an end face from an emitting face extending longitudinally of the guide, while having the lights reflected by its internal face. A sectional shape of the guide in a direction orthogonal to the longitudinal direction of this light guide has two opposite parabolas, a line segment connecting the focal points of the two opposite parabolas, and a line segment (bottom face) corresponding to the emitting face. A scattering pattern consisting of white ink is formed on the line segment (bottom face) connecting the focal points. With this guide, the face of a document is to be efficiently illuminated by conversely utilizing the characteristic of the compound parabolic concentrator (CPC) to convert scattered lights extending over a full angle from a limited area into radiant lights confined to a prescribed emission angle and thereby minimizing the expansion of lights.
Abstract:
A contact image sensor comprises a housing, a light source provided on the upper part of the housing to irradiate light to a document, lenses arranged in the housing and provided at least on an entering side and an outgoing side to focus reflected light from a reading position of the document, an aperture angle regulation member having an inclined surface to reflect a part of light irradiated from the light source at the reading position of the document and an aperture portion into which the reflected light enters directly to regulate an aperture angle to permit the reflected light passing through the aperture portion to be irradiated to the lens on the entering side, and a light receiving element array to receive and photoelectrically convert the reflected light focused after passing through the lenses.
Abstract:
An image forming device for implementing satisfactory color calibration includes a color calibration pattern generating unit that generates a color calibration pattern in a form according to an area where it is to be formed, and a visualizing unit that visualizes the color calibration pattern generated by the color calibration pattern generating unit.