Patent application number | Description | Published |
20120147442 | IMAGE SENSOR UNIT AND IMAGE READING APPARARTUS - 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. | 06-14-2012 |
20120154877 | IMAGE SENSOR UNIT AND IMAGE READING APPARARTUS USING THE SAME - 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. | 06-21-2012 |
20120162727 | IMAGE SENSOR UNIT AND IMAGE READER - 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. | 06-28-2012 |
20130038912 | IMAGE SENSOR UNIT AND IMAGE READING APPARATUS USING THE SAME - An image sensor unit includes a reflection reading light source that illuminates a bill, a substrate on which the reflection reading light source is mounted, a reflection reading light guide that guides the light emitted by the reflection reading light source to the bill, a rod-lens array that focuses the light from the bill, a light receiving element that receives the light from the rod-lens array, a sensor substrate on which the light receiving element is mounted, and a frame that houses the substrate, the reflection reading light guide, the rod-lens array and the sensor substrate. The sensor substrate has a passage hole and is disposed closer to the bill than the substrate. The frame is disposed with the reflection reading light guide inserted into the passage hole, so that the light from the reflection reading light source reaches the bill through the passage hole. | 02-14-2013 |
20130038913 | IMAGE SENSOR UNIT AND IMAGE READING APPARATUS - An image sensor unit includes a reflection reading light guide that emits light from a reflection reading light source toward the bill, a transmission reading light guide that emits light from a transmission reading light source toward the bill, an imaging element that focuses light from the bill, and a light receiving element that receives light that is collected by the imaging element. The transmission reading light source and the transmission reading light guide are disposed on the opposite side of a conveyance path through which the bill can pass, for the reflection reading light source and the reflection reading light guide, and a light blocking member that blocks a part of the light from the reflection reading light guide is disposed between the reflection reading light guide and the transmission reading light guide. | 02-14-2013 |
20130038914 | IMAGE SENSOR UNIT AND IMAGE READING APPARATUS - An image sensor unit has a light emitting module and a light guide that guides light emitted by the light emitting module to a bill, the light guide has an incident surface on which the light emitted by the light emitting module is incident, a reflection surface that reflects the light having entered the light guide through the incident surface, and an emission surface from which the light reflected by the reflection surface is emitted toward the bill, and the reflection surface is formed by a plurality of contiguous flat surfaces. | 02-14-2013 |
20140014819 | ILLUMINATION APPARATUS, IMAGE SENSOR UNIT, IMAGE READING APPARATUS, AND IMAGE FORMING APPARATUS - An illumination apparatus includes: a light guide that is formed in a rod shape and includes a positioning portion that is formed at one end in a longitudinal direction, and light incident surfaces that are formed at two end faces in the longitudinal direction; and light sources that are arranged in the vicinity of the light incident surfaces, respectively, and that emit light that is incident on the incident surfaces. The light guide is formed by injection molding. A gate portion for supplying a resin material during injection molding opens at a position that corresponds to a tip face of the positioning portion. | 01-16-2014 |
20140016166 | IMAGE SENSOR UNIT AND IMAGE READING APPARATUS USING THE SAME - 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. | 01-16-2014 |
20140320937 | IMAGE SENSOR UNIT AND IMAGE READING APPARATUS USING THE IMAGE SENSOR UNIT - A reflection reading light guide that emits light of a reflection reading light source, from a reflected light emission surface to bill S; a transmission reading light guide that emits light of a transmission reading light source, from a transmitted light emission surface to bill S; a rod-lens array that focuses reflected light from the bill S and/or transmitted light transmitted through bill S; a light receiving element that receives light collected by the rod-lens array; and a frame including a housing portion that houses the reflection reading light guide are disclosed. A light blocking portion that protrudes from the reflected light emission surface of the reflection reading light guide toward optical axis Z of the rod-lens array is included in the housing portion, and includes a positioning reference surface for the reflection reading light guide. Influence of stray light is reduced, and accuracy of read image is improved. | 10-30-2014 |
20150022870 | IMAGE SENSOR UNIT AND IMAGE READING APPARATUS - 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, for illuminating a document, a light guide that guides light from the light source from one end face and linearly illuminates the document, a rod lens array imaging reflected light from the document on the sensor substrate, and a frame holding each of these elements. The frame includes a spacer provided in proximity to the light source. The spacer includes a light shielding that covers the light source and a portion of the light guide. | 01-22-2015 |
20150060651 | ILLUMINATION APPARATUS AND IMAGE SENSOR UNIT - Illumination apparatuses include: light sources; and light guides formed in a rod shape, wherein end surfaces in a longitudinal direction are incident surfaces that receive light emitted from the light sources. Diffusing patterns are formed on the light guides, and intervals between the diffusing patterns closer to the incident surface in a first area close to the incident surface are smaller than intervals between the diffusing patterns closer to the incident surface in a second area farther from the incident surface than the first area. | 03-05-2015 |
20150062670 | ILLUMINATION APPARATUS, IMAGE SENSOR UNIT, AND IMAGE READING APPARATUS - An illumination apparatus includes: a rod-like light guide member that directs light emitted from a first light source and a second light source from an emission surface to an illuminated body while propagating the light by reflection surfaces; and a light blocking member including a second surrounding portion slidably covering another end of the light guide member, wherein the second surrounding portion includes: a light blocking portion protruding toward one end of the light guide member and covering the emission surface of the light guide member; and a cut-out portion adjacent to the light blocking portion and exposing the reflection surface of the light guide member. | 03-05-2015 |