Patent application number | Description | Published |
20100243873 | OPTICAL PICKUP DEVICE - An optical pickup device includes a house having three walls connected together whose horizontal cross-section is substantially U-shaped. A first wall supports one end of a shaft, a second wall facing the first wall supports the other end of the shaft and a third wall connects the first and second walls. A lubricant tray is surrounded by the three walls and the shaft. By the shaft being attached to an end side surface of the lubricant tray, the shaft can be integrally formed with the housing. A radius of curvature or an angle formed on a horizontal cross-section of the three walls is larger than a radius of curvature or an angle formed between one of the three walls and the lubricant tray. | 09-30-2010 |
20110182166 | OPTICAL PICKUP - An optical pickup that can be downsized is suggested. | 07-28-2011 |
20110216641 | OPTICAL PICK-UP - In an optical pick-up used in common with DVD/CD and BD, when the thickness is intended to be reduced by mounting a total reflection mirror, a cavity for passing through a laser light is necessary and, since this decreases the degree of freedom for arranging tracking coils and magnets and secondary resonance caused by a magnetic thrust in the tracking direction tends to be generated, an improvement therefor is necessary. In a lens coil holder of the optical pick-up having an objective lens and tracking coil mounted thereon each of the coils is arranged such that the thrust relative to the vertical center of the suspension wires that support the lens coil holder is well balanced. For example, most of the portion of the tracking coils is situated at one height relative to the suspension wire and the tilt coil is situated at the other remaining height. | 09-08-2011 |
20120260273 | OPTICAL PICKUP - An optical pickup includes a lens moving mechanism constructed of a lens, a lens holder holding the lens, a guide member guiding the lens holder, a lead screw including a thread groove, a motor rotating the lead screw, and a rack gear including a body fixed to the lens holder and claws fitted into the thread groove of the lead screw, in which an arm connecting the body and the claws of the rack gear is formed so that the shape of a cross section perpendicular to the rotational axis direction of the lead screw is a convex shape, a recess shape or a wave-shape. | 10-11-2012 |
Patent application number | Description | Published |
20080240652 | OPTICAL WAVEGUIDE - An optical waveguide includes a propagating light waveguide, a coupler including a photonic crystal, and a surface plasmon waveguide, the propagating light waveguide, the coupler, and the surface plasmon waveguide being disposed in one plane along a waveguiding direction. | 10-02-2008 |
20080241473 | METALLIC FINE PARTICLE DISPERSED FILM, AND PROCESS FOR PRODUCING THE SAME - The present invention is related to a process for producing a metallic fine particle dispersed film which includes metallic fine particles dispersed densely within a silicon oxide layer without aggregation. The process includes hydrolyzing and polycondensing an organosilane to form a silicon oxide layer with hydroxyl and/or alkoxide groups remaining unremoved on its side chains, bringing the silicon oxide layer into contact with an aqueous acidic tin chloride solution, and then bringing the silicon oxide layer into contact with an aqueous metal chelate solution to disperse metallic fine particles in the silicon oxide layer. | 10-02-2008 |
20100021104 | OPTICAL WAVEGUIDE SYSTEM - It is made possible to provide an optical waveguide system that has a coupling mechanism capable of selecting a wavelength and has the highest possible conversion efficiency, and that is capable of providing directivity in the light propagation direction. An optical waveguide system includes: a three-dimensional photonic crystalline structure including crystal pillars and having a hollow structure inside thereof; an optical waveguide in which a plurality of metal nanoparticles are dispersed in a dielectric material, the optical waveguide having an end portion inserted between the crystal pillars of the three-dimensional photonic crystalline structure, and containing semiconductor quantum dots that are located adjacent to the metal nanoparticles and emit near-field light when receiving excitation light, the metal nanoparticles exciting surface plasmon when receiving the near-field light; and an excitation light source that emits the excitation light for exciting the semiconductor quantum dots. | 01-28-2010 |
20100239219 | PARTICLE AND NEAR-FIELD OPTICAL WAVEGUIDE - A particle includes: a metal; and a compound containing a hydrogen-bonding forming group, an absorption group different from the hydrogen-bonding forming group, and an aromatic ring, M representing the metal, A representing the absorption group, B representing the hydrogen-bonding forming group, a representing an integer of 0 or greater, b representing an integer of 0 or greater, c representing an integer of 1 or greater, R1 representing an aromatic ring (a planar ring up to a pi-electron number of 24) and a derivative of the aromatic ring, R2 through R5 representing a hydrogen atom, saturated hydrocarbon, unsaturated hydrocarbon, an ether bond, an ester bond, a cyano group, or derivatives of the substances and bonds, and the compound having a structure expressed by the following chemical formula. | 09-23-2010 |
20100276649 | PROCESS FOR PRODUCING METALLIC-NANOPARTICLE INORGANIC COMPOSITE AND METALLIC-NANOPARTICLE INORGANIC COMPOSITE - A process for producing a metallic-nanoparticle inorganic composite | 11-04-2010 |
20110235495 | OPTICAL HEAD AND OPTICAL RECORDING/REPRODUCING APPARATUS - Certain embodiments provide an optical recording/reproducing apparatus including: a slider that has a medium facing surface that faces an optical recording medium, and moves along a recording/reproducing face of the optical recording/reproducing medium; a metal nanoparticle structure that is provided in the medium facing surface of the slider; a light illumination device that illuminates the optical recording medium and the metal nanoparticle structure with light that has polarization components in a direction perpendicular to the recording/reproducing face; and a detection device that detects Rayleigh scattering light that is generated from a portion of the optical recording medium and is intensified by the metal nanoparticle structure, the portion being located close to the metal nanoparticle structure. | 09-29-2011 |
20120228804 | NEAR-FIELD EXPOSURE MASK, RESIST PATTERN FORMING METHOD, DEVICE MANUFACTURING METHOD, NEAR-FIELD EXPOSURE METHOD, PATTERN FORMING METHOD, NEAR-FIELD OPTICAL LITHOGRAPHY MEMBER, AND NEAR-FIELD NANOIMPRINT METHOD - A near-field exposure mask according to an embodiment includes: a silicon substrate; and a near-field light generating unit that is formed on the silicon substrate, the near-field light generating unit being a layer containing at least one element selected from the group consisting of Au, Al, Ag, Cu, Cr, Sb, W, Ni, In, Ge, Sn, Pb, Zn, Pd, and C, or a film stack formed with layers made of some of those materials. | 09-13-2012 |
20130260290 | NEAR-FIELD EXPOSURE MASK AND PATTERN FORMING METHOD - A near-field exposure mask according to an embodiment includes: a substrate; a concave-convex structure having convexities and concavities and formed on one surface of the substrate; a near-field light generating film arranged at least on a tip portion of each of the convexities, the near-field light generating film being a layer containing at least one element selected from the group consisting of Au, Al, Ag, Cu, Cr, Sb, W, Ni, In, Ge, Sn, Pb, Zn, Pd, and C, or a film stack formed with layers made of some of those materials; and a resin filled in each of the concavities. | 10-03-2013 |
20140139714 | SOLID STATE IMAGING DEVICE - A solid state imaging device according to an embodiment includes a photo detector arranged two-dimensionally in a semiconductor substrate, a readout circuit provided in the semiconductor substrate, a first photoelectric conversion layer provided above the photo detector, a plurality of first metal dots provided above the first photoelectric conversion layer, a second photoelectric conversion layer provided above the first metal dots, and a plurality of second metal dots provided above the second photoelectric conversion layer. | 05-22-2014 |
20150246478 | NEAR-FIELD EXPOSURE MASK, RESIST PATTERN FORMING METHOD, DEVICE MANUFACTURING METHOD, NEAR-FIELD EXPOSURE METHOD, PATTERN FORMING METHOD, NEAR-FIELD OPTICAL LITHOGRAPHY MEMBER, AND NEAR-FIELD NANOIMPRINT METHOD - A near-field exposure mask according to an embodiment includes: a silicon substrate; and a near-field light generating unit that is formed on the silicon substrate, the near-field light generating unit being a layer containing at least one element selected from the group consisting of Au, Al, Ag, Cu, Cr, Sb, W, Ni, In, Ge, Sn, Pb, Zn, Pd, and C, or a film stack formed with layers made of some of those materials. | 09-03-2015 |