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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 8107348 | Optical pickup apparatus for use on a multi-layered optical information storage medium An optical pickup apparatus for use on multi-layered optical information storage medium in which influences of reflected light, which result in crosstalk from adjacent layers in a multi-layered optical disk, are mitigated. In an astigmatic optical system of the opti... | 01/31/2012 |
| 8072868 | Optical pickup and information device for reducing an influence of stray light in an information recording medium An optical pickup for irradiating an information recording medium, such as a DVD, with a laser beam when an information signal is recorded or reproduced, and information equipment provided with the optical pickup. The optical pickup is capable of recording or reprod... | 12/06/2011 |
| 8064317 | Optical pickup apparatus and focal-point adjusting method An optical pickup apparatus is provided with: an astigmatic element for introducing astigmatism to a reflected light from a recording medium; and an optical element for varying advancing directions of luminous fluxes within four different luminous flux regions with ... | 11/22/2011 |
| 7990835 | Optical pickup apparatus, focal-point adjusting method, and optical disc apparatus An optical pickup apparatus is provided with an angle adjusting element. The angle adjusting element changes a propagation direction of luminous fluxes of four luminous flux regions set about an optical axis of the laser light, out of laser light reflected by a disc... | 08/02/2011 |
| 7990836 | Optical pickup apparatus, focal-point adjusting method, and optical disc apparatus An optical pickup apparatus is provided with an angle adjusting element. The angle adjusting element changes a propagation direction of luminous fluxes of four luminous flux regions set about an optical axis of the laser light, out of laser light reflected by a disc... | 08/02/2011 |
| 7916612 | Optical pickup apparatus and focal-point adjusting method An optical pickup apparatus includes an astigmatic element, an angle adjusting element for contradicting propagation directions of luminous fluxes within four different luminous flux regions out of a reflected light, a polarization adjusting element. Two of the lumi... | 03/29/2011 |
| 7903530 | Optical system for spatially controlling light polarization and method for manufacturing the same An optical system for spatially controlling light polarization, and method for manufacturing the same, includes a light source for generating a light beam of a designated wavelength, a beam shaper for splitting the light beam generated from the light source into a p... | 03/08/2011 |
| 7889620 | Optical pickup device and optical disk device A light source emits light with a first wavelength and light with a second wavelength longer than the first wavelength toward an optical disk from adjacent positions. An optical receiver detects light reflected from the optical disk. An astigmatism-generating elemen... | 02/15/2011 |
| 7835252 | Optical head apparatus An optical head apparatus includes a light source and an objective lens focusing a light source light on an optical recording medium. Also included is a light detector receiving a return light, and a variable diffraction device including a first polarized light diff... | 11/16/2010 |
| 7796491 | Wavelength plate, optical element, and optical pickup There is provided, in an optical disk apparatus which is capable of recording data to or reading data from a plurality of types of optical disks, a wavelength plate and an optical pickup which can reduce deterioration in signal quality even in the presence of a larg... | 09/14/2010 |
| 7664002 | Laminated wave plate and optical pickup using the same A conventional broadband quarter-wave plate has not completely solved the wavelength dependence and has different efficiencies of shifting the phase by 90° depending on the wavelengths, and therefore has a problem that it cannot fulfill the strict specifications on... | 02/16/2010 |
| 7599276 | Optical head device and optical information recording/reproduction apparatus In an optical head device, a birefringence correcting element 5a containing a material showing mono-axial refractive index anisotropy is located before an objective lens. The birefringence correcting element 5a is circumferentially divide... | 10/06/2009 |
| 7573800 | Optical pickup and optical disk apparatus An optical pickup and an optical disk apparatus of the invention includes a light source 1 mounted with a light-emitting element constituted of a monoblock on a surface of a plate 6 and emitting plural light beams, a light-receiving element 2, o... | 08/11/2009 |
| 7444047 | Multiplexing optical system A multiplexing optical system includes collimator lenses, a first condensing lens, a second condensing lens and an optical fiber. The collimator lenses collimate divergent laser beams that have been emitted from semiconductor lasers. The first condensing lens conden... | 10/28/2008 |
| 7417936 | Optical pickup reducing noise and polarization changer An optical pickup includes a laser light source, an objective lens which focuses light emitted from the laser light source on an optical information storing medium, an optical path changer which changes a proceeding path of the light emitted from the laser light sou... | 08/26/2008 |
| 7369467 | Optical pickup including polarization holographic optical element and photodetector Disclosed is an optical pickup including a polarization holographic optical element (HOE) and a photodetector. The optical pickup includes a light source, an optical path changer, an objective lens, a polarization HOE, and a photodetector. The polarization HOE has a... | 05/06/2008 |
| 7336432 | Optical pickup and optical disc device An optical pickup includes at least a laser light source emitting a laser beam, a collimator lens system including a plurality of lenses for collimating the light beam emitted from the laser light source and incident thereupon as diffused light, and an objective len... | 02/26/2008 |
| 7326876 | Sequential lateral solidification device A sequential lateral solidification device, for enhancing optical characteristics of the device and for preventing damage caused by an ablation of a crystallization thin film, is disclosed. The device includes a laser light source generating a laser beam, a projecti... | 02/05/2008 |
| 7321542 | Beam shaping prism and optical pickup employing the same A beam shaping prism used in an optical pickup, the beam shaping prism includes a first prism having an incident surface and a second prism having an inclined surface. Since a beam entering the beam shaping prism makes right angles with a beam emerging therefrom, it... | 01/22/2008 |
| 7319655 | Diffractive optical element, objective optical system, optical pick-up device and optical information recording reproducing apparatus A diffractive optical element, comprises a first diffractive structure to generate n11-th order diffracted ray when a first light flux having λ1 (nm) of a wavelength comes in and to generate n21-th order diffracted ray (n11.≧n | 01/15/2008 |
| 7302148 | Test head for optically inspecting workpieces An optical test head comprises a block of material with a plurality of optical paths extending therethrough. At least one of the optical paths is an input optical path for receiving laser light and holding a lens for focusing the laser light on a workpiece that is p... | 11/27/2007 |
| 7280459 | Device for correcting signal modulations A device for reading from and/or writing to optical recording media 10, on which information is present in the form of pits, with a linearly polarized light beam 2. A device for reading from and/or writing to optical recording media 10 w... | 10/09/2007 |
| 7277377 | Optical pick-up device with a polarized light beam converter An optical pick-up device includes a light source (2), a polarized light beam converter (4), a splitter (6), a collimating lens (7), and a photo-detector (9). A linear polarized light beam with a first type of polarized component a... | 10/02/2007 |
| 7269307 | Optical configuration for generating polarization conversion The present invention presents a method to enhance polarization conversion reflection from an anisotropic thin film. The total reflection effect or the high reflection at the interface of an anisotropic thin film leads to enhanced polarization conversion. Polarizati... | 09/11/2007 |
| 7248409 | Optical element, optical lens, optical head apparatus, optical information apparatus, computer, optical information medium player, car navigation system, optical information medium recorder, and optical information medium server An optical lens includes a hologram, a refractive lens, and a phase level difference. The hologram has a sawtooth shape grating having a sawtooth shape in cross-section, and generates +2nd-order diffracted light most strongly with respect to blue light and +1st-orde... | 07/24/2007 |
| 7233564 | Optical disk apparatus An optical disk apparatus which records/reproduces data on/from a plurality of types of optical disks. The optical disk apparatus has a plurality of laser diodes. Two laser light rays emanating from two laser diodes are coupled together by means of a coupling prism.... | 06/19/2007 |
| 7218591 | Optical pickup apparatus An optical pickup apparatus is provided with two light sources; an objective lens for focusing light originating from each light source on an optical recording medium; a light separation optical element for transmitting or reflecting the light originating from each ... | 05/15/2007 |
| 7210815 | Optical device, illumination apparatus, and color illumination apparatus An optical device with a first incidence plane configured to enter rays coming from a first direction, a second incidence plane configured to enter rays coming from a second direction different from the first direction, the rays which entered the first incidence pla... | 05/01/2007 |
| 7184387 | Optical scanning device An optical scanning device for scanning an optical record carrier comprising an information layer. Crosstalk cancellation is provided using a phase modulating element (40, 140) for generating a non-rotationally-symmetric phase profile in a subsidiary radiatio... | 02/27/2007 |
| 7177260 | Optical pickup including a many-sided reflection prism and method of using the optical pickup An optical pickup including a many-sided reflection prism formed as a single body with a plurality of reflection faces to guide a light beam incident through a transmission face in a horizontal direction perpendicular to a height direction by reducing a size of the ... | 02/13/2007 |
| 7170846 | Light receiving and emitting unit and optical pickup using the same A light receiving and emitting unit has a plurality of light sources, a light receiving element, a light control unit, and an optical block. The optical block has at least a first and a second member formed of a material having birefringent property, and a third mem... | 01/30/2007 |
| 7155461 | Information processing system Information such as a last scan time and a last update is encrypted and added to a file system that a CPU 132 on a host computer 13 manages. In accordance with the information, host 13 and a scan server work cooperatively. A scan is omitted for ... | 12/26/2006 |
| 7154837 | Optical pickup and optical information recording/reproducing device An optical pickup and an optical information recording/reproducing device are provided, each of which is capable of forming a super-resolution spot to conduct micro-mark recording, and does not undergo signal degradation due to an increased sidelobe in a reproducing... | 12/26/2006 |
| 7154838 | Optical detector, optical head device, optical information processing device, and optical information processing method A photodetector, includes: a semiconductor chip that converts received light to an electric signal; and a resin body that encapsulates the semiconductor chip. The photodetector further includes a protective unit, and at least a light transmission area, through which... | 12/26/2006 |
| 7149174 | Optical pickup An optical pickup which appropriately detects reflected light and return light reflected back from an information recording medium even if a laser light B1 emitted from a light source varies in wavelength. The transmittances of a half mirror to the laser ligh... | 12/12/2006 |
| 7126904 | Optical disk device A first light ray with a wavelength λ1 emanating from the first emission light source passes through the transparent substrate and is condensed by the objective lens on a signal surface of a first optical disk with a substrate thickness t1, ... | 10/24/2006 |
| 7126900 | Optical scanning device An optical scanning device for scanning a dual-layer optical record carrier. The device includes a spherical aberration compensation optical subsystem having a switchable liquid crystal cell (10) for altering a wavefront deviation generated in a folding mirro... | 10/24/2006 |
| 7120107 | Optical head for optical recording having a hologram element that generates multiple diffracted light beams of different orders An optical head is provided, which suppresses the offset in the tracking error signal. This head comprises (a) a light source for emitting a light beam to be irradiated to an optical recording medium as an incident light beam; (b) a hologram element for receiving a ... | 10/10/2006 |
| 7116494 | Optical apparatus and method for adjusting amount of light of the same An optical apparatus provided in an optical pickup includes first and second light sources, a light splitting element, a condensing lens, a mounting base, a light receiving element, and a protruding piece formed on the condensing lens. The condensing lens guides tra... | 10/03/2006 |
| 7106681 | Optical head arrangements with single substrate lasers An optical head with a plurality of semi-conductor laser chips for use in reducing inclination or gradient of more than one beam presently falling onto a focusing lens is disclosed. To this end, a double mirror or alternatively beam reshaping means is disposed which... | 09/12/2006 |
