Patent application number | Description | Published |
20090073580 | PLASTIC OPTICAL ELEMENT, NEST STRUCTURE, DIE, OPTICAL SCAN APPARATUS AND IMAGE FORMATION APPARATUS - A plastic optical element is provided, which includes an optical element body having a transfer surface which includes at least one laser beam incident portion of a concave shape, and a support portion connected with the optical element body, in which the support portion is disposed in a direction of a tangent line at an end of the transfer surface, and the optical element body and a part of the support portion are molded in the same nest structure. | 03-19-2009 |
20090168188 | IMAGE FORMING APPARATUS, OPTICAL SCANNING DEVICE, AND PLASTIC LENS - A plastic lens molded in a mold having two first molding blocks and two second molding blocks. The first molding blocks transfer light incidence and emission surfaces. The second molding blocks are provided to both ends of the first molding blocks, disposed parallel to an optical axis and facing each other, and transfer non-light-passing surfaces. At least one of the second molding blocks includes an elongated slit-like ventilation hole having a length of a light effective range or longer and extending in a main scanning direction of the light incidence and emission surfaces along positions equidistant from the light incidence and emission surfaces. Through the ventilation hole, air is sprayed onto molten resin in a process of resin cooling and solidification to facilitate cooling of the resin. | 07-02-2009 |
20090231410 | OPTICAL SCANNING DEVICE, OPTICAL SCANNING METHOD, AND IMAGE FORMING APPARATUS, USING THE OPTICAL SCANNING DEVICE - An optical scanning device for guiding a light beam to a member to scan the member with the light beam, including a light source emitting the light beam; a light deflector deflecting the light beam; a focusing optical system including a plastic optical element molded using a die. The optical element has least two transfer surfaces formed by contacting with transfer surfaces of the die and including a light entrance surface and a light exit surface; and a third surface including a non-transfer surface formed without contacting a transfer surface of the die. The light beam passes through the optical element in such a manner that the optical axis center of the light beam extends in a direction parallel to the shorter side of the optical element while being shifted from the dimensional center of the optical element toward the third surface of the optical element. | 09-17-2009 |
20100054809 | PLASTIC OPTICAL ELEMENT, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS USING THE OPTICAL SCANNING DEVICE - A plastic optical element for guiding a scanned light beam in a main scanning direction and a sub-scanning direction, which is prepared by a molding method using a die. The element includes: a main body including at least two optically functional surfaces, which are transfer surfaces formed by contacted with transfer surfaces of the die and through which the light beam passes; and at least two ribs located on surfaces of the main body other than the optically functional surfaces and extending in parallel in the main scanning direction. A recessed portion is present on a surface of at least one of the ribs, and the recessed portion has a side transfer surface and a bottom surface, which is a non-transfer surface, and the distance between the optically functional surfaces is less than the length of the main body in the sub-scanning direction. | 03-04-2010 |
20110058853 | PLASTIC OPTICAL ELEMENT, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS - A plastic optical element for use in an optical scanning device including light effective portions that focus light, and at least one link portion that connects the light effective portions in the sub-scanning direction, the link portion forming a border arc having a curvature radius R of 2 mm or greater and contacting the light effective portions such that the tangent of the light effective portion at the connection point of the light effective portion and the border arc matches the tangent of the border arc at the connection point. | 03-10-2011 |
20130070324 | PLASTIC OPTICAL ELEMENT AND OPTICAL SCANNER AND IMAGING FORMING DEVICE INCLUDING THE SAME - A plastic optical element for an optical system of an optical scanner includes a plurality of optical effective portions through which a plurality of light beams transmit, respectively, formed on at least one of an incidence surface and an exit surface in a sub scan direction, and an optical ineffective portion formed between neighboring optical effective portions not to allow the light beams to transmit therethrough, and including an area in which a local contraction occurs at a time of resin molding. | 03-21-2013 |
Patent application number | Description | Published |
20090067323 | Duplicate Transmission Path Switching Device - In switching by failure, no switching is performed when a packet of IP packet is lost or a packet has not arrived even when a predetermined time has elapsed, which are not recognized as a failure. There is provided a duplicate transmission path switching device for data packets having the same information configuration to a main transmission path and an auxiliary transmission path. The device includes a transmission failure monitoring unit for monitoring a transmission failure of the main transmission path; a switching receiving unit arranged at the downstream of the transmission failure monitoring unit capable of receiving a packet from the main transmission path during a normal mode, and switching to the auxiliary transmission path to acquire a packet from the auxiliary transmission path in a predetermined mode; and a switching command output unit used when the monitoring result shows that a transmission failure is present, for outputting a switching command capable of switching to the auxiliary transmission path before the transmission failure reaches the switching/receiving unit, to the switching/receiving unit. | 03-12-2009 |
20100206471 | PROCESS FOR PRODUCING MULTILAYER PRINTED WIRING BOARD - A production method of a multi-layer printed wiring board containing the following steps (1)-(5):
| 08-19-2010 |
20120013964 | PLASTIC ARTICLE, METHOD OF SHAPING PLASTIC ARTICLE, AND OPTICAL SCANNING DEVICE HAVING PLASTIC ARTICLE - A plastic article is formable by using a metal die having a cavity to accommodate melted resin therein at a given pressure. The plastic article includes a transfer face to which is transferred a face shape of the metal die, a projection disposed at least one face other than the transfer face, an incomplete transfer face having a concave shape disposed at the same face on which the projection is disposed, formed by an incomplete transfer of a face shape of the cavity of the metal die, and an incomplete transfer face having a convex shape disposed at least one face other than the transfer face. | 01-19-2012 |
20120063811 | RESIN CASTING MOLD, MOLDED RESIN PRODUCT, OPTICAL ELEMENT, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS - A resin casting mold includes a mold member forming a cavity that includes first and second surfaces facing each other in a first direction. The mold member further includes an insert member which forms a part of a third surface and which is slidable in a second direction perpendicular to the first direction. At least one cross-sectional shape of the cavity satisfies h | 03-15-2012 |
20120236380 | OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, SCANNING LENS, AND MOLDING METHOD OF THE SCANNING LENS - An optical scanning device that scans a plurality of surfaces to be scanned in a main scanning direction by using a light beam includes: a plurality of light sources; a light deflector that deflects a plurality of light beams emitted from the light sources; and a scanning optical system that individually guides each one of the light beams deflected by the light deflector to a corresponding one of the surfaces to be scanned. The scanning optical system includes one scanning lens shared by the light beams, and at least one surface of the scanning lens has a plurality of optical surfaces corresponding to the plurality of light beams disposed in a sub-scanning direction with a flat surface provided between the optical surfaces. | 09-20-2012 |
Patent application number | Description | Published |
20090133910 | PRODUCTION METHOD OF MULTILAYER PRINTED WIRING BOARD AND MULTILAYER PRINTED WIRING BOARD - Multilayer printed wiring boards may be prepared by forming a via hole by laser irradiation in insulating layer formed by a prepreg, comprised of a glass cloth impregnated with a thermosetting resin composition, and subjecting the via hole to a glass etching treatment with a glass etching solution and then to a desmear treatment with an oxidizing agent solution. By such a process, etch back phenomenon and excessive protrusion of glass cloth from the wall surface of a via hole can be sufficiently suppressed, and a highly reliable via can be formed. Particularly, a highly reliable via can be formed in a small via hole having a top diameter of 75 μm or below. | 05-28-2009 |
20130067742 | PROCESS FOR PRODUCING MULTILAYER PRINTED WIRING BOARD - Multi-layer printed wiring boards may be produced by:
| 03-21-2013 |
20130319749 | PRODUCTION METHOD OF MULTILAYER PRINTED WIRING BOARD AND MULTILAYER PRINTED WIRING BOARD - Multilayer printed wiring boards may be prepared by forming a via hole by laser irradiation in insulating layer formed by a prepreg, comprised of a glass cloth impregnated with a thermosetting resin composition, and subjecting the via hole to a glass etching treatment with a glass etching solution and then to a desmear treatment with an oxidizing agent solution. By such a process, etch back phenomenon and excessive protrusion of glass cloth from the wall surface of a via hole can be sufficiently suppressed, and a highly reliable via can be formed. Particularly, a highly reliable via can be formed in a small via hole having a top diameter of 75 μm or below. | 12-05-2013 |