Patent application number | Description | Published |
20090310223 | TAKING LENS UNIT - A camera lens unit includes a first lens including a first lens section having a first optical axis along which light runs, and a second lens. The second lens includes a second lens section having a second optical axis along which the light runs, a flange provided on an outer circumference of the second lens and having a surface facing the first lens, and a cylindrical section having an inner circumference extending from the flange along the second optical axis. The inner circumference of the cylindrical section faces the second lens section. The first lens contacts the inner circumference of the cylindrical section of the second lens and is engaged into the cylindrical section. The cylindrical section of the second lens includes plural protrusions protruding along the second optical axis, such that plural crenels are provided between the protrusions and have heights along the second optical axis lower than the protrusions. The camera lens unit prevents diffuse reflection caused by unnecessary incident light. | 12-17-2009 |
20100309367 | IMAGING LENS AND IMAGING DEVICE USING THE SAME - The present invention provides an imaging lens composed of four lenses that can be made compact (downsized, thinned), allows a reduction in cost and is compatible with a high pixel imaging element having a megapixel or more incorporated in a small mobile product such as a mobile phone. The imaging lens | 12-09-2010 |
20100328518 | IMAGING LENS AND IMAGING DEVICE USING THE LENS - The present invention provides an imaging lens composed of three lenses that can be made compact (downsized, thinned), allows a reduction in cost and can be made compatible with a high pixel imaging element having a megapixel or more incorporated in a small mobile product such as a mobile phone. The imaging lens | 12-30-2010 |
20110019281 | IMAGING OPTICAL SYSTEM AND IMAGING DEVICE USING THE SAME - An imaging optical system capable of sufficiently suppressing the occurrence of flare or ghost that degrade the image quality is provided. The imaging optical system is an imaging optical system | 01-27-2011 |
20120019706 | IMAGE PICKUP LENS AND IMAGE PICKUP DEVICE USING THE SAME - An image pickup lens capable of providing an angle of view of up to 70° or higher is provided. The image pickup lens can also be reduced in size and various aberrations associated with the lens can be corrected favorably, so that the image pickup lens is compatible with a high-pixel image pickup element. The image pickup lens | 01-26-2012 |
20120224080 | IMAGE PICKUP LENS, IMAGE PICKUP DEVICE USING SAME, AND PORTABLE DEVICE EQUIPPED WITH THE IMAGE PICKUP DEVICE - The present invention provides an image pickup lens capable of adequately suppressing flare caused by unnecessary diffraction order light. An image pickup lens | 09-06-2012 |
20120229695 | IMAGE PICKUP LENS, IMAGE PICKUP DEVICE USING SAME, AND PORTABLE DEVICE EQUIPPED WITH IMAGE PICKUP DEVICE - An image pickup lens compatible with small high-pixel image pickup elements (e.g., from CCD and CMOS image sensors having a pixel pitch of 1.75 μm and a pixel count of 5 mega pixels to CCD and CMOS image sensors having a pixel pitch of 1.4 μm and a pixel count of 8 mega pixels) is provided. An image pickup lens | 09-13-2012 |
20120307135 | IMAGE PICKUP LENS, IMAGE PICKUP DEVICE USING SAME, AND PORTABLE APPARATUS EQUIPPED WITH THE IMAGE PICKUP DEVICE - The present invention provides an image pickup lens with a large focal depth from the center to the outer part of an image plane formed on an image sensor and capable of maintaining its focal depth within a practical range and thus suppressing a decline in the resolution. An image pickup lens | 12-06-2012 |
20120314122 | PLASTIC LENS, PHOTOGRAPHING LENS, IMAGING DEVICE, AND PORTABLE DEVICE - A plastic lens includes a flange portion on an outer circumference of a lens effective-diameter portion and manufactured by injecting a resin into a mold via a gate portion. The plastic lens is characterized by having a shape satisfying conditions of s/t≦0.61 and E.D/D≧0.4 when s [mm] and t [mm] represent a peripheral thickness, a central thickness of the lens effective-diameter portion, E.D [mm] represents a lens effective diameter, and D [mm] represents a lens diameter. | 12-13-2012 |
20140347515 | IMAGING LENS AND IMAGING DEVICE USING SAME - An imaging lens includes, arranged in sequence from the object side to the imaging surface side, a first lens having a positive power and convex surfaces on both sides; an aperture diaphragm; a second lens being a meniscus lens having a negative power and a convex surface on the object side; a third lens being a meniscus lens having a positive power and a concave surface on the object side; and a fourth lens having a negative power and concave surfaces on both sides. With this structure, the imaging lens is well corrected for various aberrations in spite of being compact in the lens radial direction and thin in the optical axis direction. | 11-27-2014 |
Patent application number | Description | Published |
20080284438 | MAGNETIC RESONANCE IMAGING APPARATUS - A magnetic resonance imaging apparatus includes a bed, a static field magnet, a gradient coil, a liner and a heat transfer material. The bed includes a table-top capable of placing thereon an object. The static field magnet generates a static magnetic field. The gradient coil, formed inside the static field magnet, generates gradient magnetic fields. The liner, provided inside the gradient coil, forms a bore in which the table-top is advanced or retreated. Further, the heat transfer material is attached to the liner. | 11-20-2008 |
20090079430 | MAGNETIC RESONANCE APPARATUS GANTRY AND MAGNETIC RESONANCE APPARATUS - A magnetic resonance apparatus gantry includes a cylindrical static magnet housing which accommodates a static field magnet and in which an opening portion is formed, a cylindrical gradient magnet housing which accommodates a gradient coil, is placed in the opening portion, and is shorter in length in an axial direction than the static magnet housing, and a support unit which supports the gradient magnet housing on the static magnet housing, and includes a first support member mounted on the static magnet housing, a second support member mounted on the gradient magnet housing and supported by the first support member, and an adjustment unit which is placed inside the static magnet housing in the axial direction and adjusts a relative positional relationship between the static magnet housing and the gradient magnet housing by changing the relative positional relationship between the first support member and the second support member. | 03-26-2009 |
20100301865 | MAGNETIC RESONANCE IMAGING APPARATUS - In one embodiment, a magnetic resonance imaging apparatus includes a gradient coil, a first cooling pipe, and a second cooling pipe. The gradient coil applies a gradient magnetic field onto a subject placed in a static magnetic field. The first cooling pipe is provided in the gradient coil, and circulates a coolant in a certain direction. The second cooling pipe is provided in the gradient coil so as to be in parallel with the first cooling pipe, and circulates a coolant in an opposite direction to a direction in which the first cooling pipe circulates the coolant. | 12-02-2010 |
20130314089 | MAGNETIC RESONANCE IMAGING APPARATUS - A magnetic resonance imaging apparatus according to an embodiment includes a static magnetic field magnet, a gradient coil, a bore tube and a sealed space forming unit. The gradient coil is formed to be approximately cylindrical, arranged in a cylinder of the static magnetic field magnet, and adds a gradient magnetic field to the static magnetic field. The bore tube is formed to be approximately cylindrical and arranged in the cylinder of the gradient coil. The sealed space forming unit forms a sealed space enclosing the gradient coil between an inner circumferential side of the static magnetic field magnet and an outer circumferential side of the bore tube. At least a part of at least one of the side ends of the gradient coil does not make contact with the sealed space. | 11-28-2013 |
Patent application number | Description | Published |
20110142488 | ELECTROPHOTOGRAPHIC COLOR IMAGE FORMING APPARATUS - A color image forming apparatus for forming a color image on a sheet includes a plurality of cartridge mounting portions for demountably mounting a cartridge each of which includes a developing roller for developing an electrostatic latent image formed on a photosensitive drum into a developed image and a developer accommodating portion for accommodating a developer to be used for development of the electrostatic latent image; a single intermediary transfer member which is provided opposed to the drums and onto which the developed images are transferred from the drums; an image forming unit containing the cartridge mounting portions and the intermediary transfer member and movable between a first position for transferring, onto the sheet, the developed images transferred onto the intermediary transfer member from the drums and a second position for permitting mounting and demounting of the cartridges relative to the cartridge mounting portion; an opening for permitting mounting and demounting of the cartridges relative to the cartridge mounting portions of the unit taking the a second position; and an opening-closing member movable between a closing position for closing the opening and an open position for opening the opening, wherein when the unit takes the first position, the cartridges take attitudes in which the developer is supplied to the developing roller by the weight thereof, and when the unit takes the a second position, the cartridges take attitudes in which the developer is not supplied to the developing roller by the weight thereof. | 06-16-2011 |
20110305480 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A color electrophotographic image forming apparatus for forming a color image on a sheet includes cartridge mounting portions for mounting cartridges; an intermediary transfer member onto which developed images formed electrophotographic photosensitive drums are transferred, the transfer member being opposed to the drums; an image forming unit comprising the cartridge mounting portions and the transfer member, the unit being movable between a transfer position for transferring, onto the sheet, the developed images transferred onto the transfer member from the drums, and a mounting and demounting position for mounting and demounting the cartridges relative to the cartridge mounting portions; an opening for permitting mounting and demounting of the cartridges relative to the cartridge mounting portions of the unit placed in the mounting and demounting position; an openable member capable of opening and closing the opening, the openable member being movable between a closing position for closing the opening and an open position for opening the opening; an interrelating member for moving the unit from the transfer position to the mounting and demounting position in interrelation with manual movement of the openable member from the closing position to the open position and for moving the unit from the mounting and demounting position to the transfer position in interrelation with manual movement of the openable member from the open position to the closing position. | 12-15-2011 |
Patent application number | Description | Published |
20130251402 | PROCESS CARTRIDGE, DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A process cartridge for an image forming apparatus includes a first frame supporting the photosensitive drum; a developing roller; a process member actable on the developing roller; a second frame supporting the developing roller and the process member, the second frame being movable between a contact position where the developing roller contacts the drum and a spacing position where the developing roller is spaced from the drum; a developing device contact; and a process member contact, wherein when the second frame is moved between the contact position and the spacing position, a movement path of the developing device contact overlaps a movement path of process member contact, as seen along the axial direction. | 09-26-2013 |
20130322922 | IMAGE BEARING MEMBER UNIT AND IMAGE FORMING APPARATUS - An image bearing member unit for use with an image forming apparatus, includes: an image bearing member including a supported portion onto which a lubricant is applied; a supporting member for rotatably supporting the supported portion; a frame for holding the supporting member; and a spacing maintaining portion provided on the frame or the image bearing member. The spacing maintaining portion is disposed outside the supported portion with respect to a radial direction of the image bearing member, and is disposed inside, with respect to a longitudinal direction of the image bearing member, a region where the supporting member supports the supported portion. When the supporting member is not mounted on the frame, the spacing maintaining portion maintains a spacing between the frame and the supported portion in contact with the image bearing member or the frame. | 12-05-2013 |
20140010561 | IMAGE FORMING APPARATUS - An image forming apparatus configured to form an image on a recording medium, includes a developer container configured to store developer, an image bearing member configured to be rotated and on which a latent image is formed, a developer bearing member configured to bear developer and to be rotated to develop the latent image, an agitation member configured to be rotated to agitate the developer stored in the developer container, and a control unit configured to control the rotations of the image bearing member, the developer bearing member, and the agitation member so as to rotate the agitation member while the image bearing member is not rotated. | 01-09-2014 |
20140137372 | OPENING AND CLOSING MECHANISM AND IMAGE-FORMING APPARATUS - An opening and closing mechanism has an apparatus body | 05-22-2014 |
20150093146 | CARTRIDGE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the cartridge includes (i) a rotatable developing roller for developing a latent image formed on a photosensitive member; (ii) a first drive transmission member capable of receiving a rotational force originated by the main assembly; (iii) a second drive transmission member capable of coupling with the first drive transmission member and capable of transmitting the rotational force received by the first drive transmission member to the developing roller; and (iv) a coupling disconnection member including a force receiving portion capable of receiving the force originated by the main assembly, and an urging portion capable of urging at least one of the first drive transmission member and the second drive transmission member by the force received by the force receiving portion to separate one of the first drive transmission member and the second drive transmission member from the other, thereby disconnecting the coupling. | 04-02-2015 |
20150220047 | FRAME FOR IMAGE FORMING APPARATUS AND MANUFACTURING METHOD THEREOF - A frame for an image forming apparatus, includes: first and second plate members; a bent portion provided as a part of the first plate member and bent along the second plate member; a portion-to-be-fixed provided as a part of the bent portion; a positioning portion, provided on the first plate member, for positioning the second plate member relative to the first plate member by being abutted vertically against the second plate member, wherein a free end projects toward the second plate member more than the portion-to-be-fixed; and a fixing portion, provided as a part of the second plate member, to which the portion-to-be-fixed is fixed. The second plate member is deformed to contact and deform the fixing portion to the portion-to-be-fixed while the second plate member is in contact to the positioning portion, so that the first plate member and the second member are fixed to each other. | 08-06-2015 |