Bizarre Patents
Combination Beverage Container and Spittoon
A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8169878 | Optical pickup apparatus, objective optical element and optical information recording reproducing apparatus An optical pickup apparatus according to the present invention includes: a first light source for emitting a first light flux; a second light source for emitting a second light flux; a third light source for emitting a third light flux; and an objective optical elem... | 05/01/2012 |
| 8149677 | Optical pickup unit and optical disk apparatus having a phase-differing periodic structure An optical pickup unit comprises a diffraction grating that divides light into at least three luminous fluxes and condenses the three luminous fluxes to apply at least three focusing spots, independent of each other, onto a signal side of a medium. The diffraction g... | 04/03/2012 |
| 8125873 | Objective lens for optical pickup device, and optical pickup device Provided is an objective lens for an optical pickup apparatus. The objective lens collects diffracted light generated by an optical path difference giving structure onto the information recording surface of an optical information recording medium as a spot and suppr... | 02/28/2012 |
| 8121011 | Optical element, aberration correcting element, light converging element, objective optical system, optical pickup device, and optical information recording reproducing device An optical system for use in an optical pickup apparatus comprises a first optical surface having a superposition type diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each ring-shaped z... | 02/21/2012 |
| 8116187 | Design method of optical element and optical element through which a plurality of light beams having different design wavelengths pass A method of designing an optical element to be used for an optical system in which each of a plurality of light beams having different design wavelengths passes through the optical element is provided. The method includes determining at least two types of optical pa... | 02/14/2012 |
| 8077583 | Optical element, aberration correcting element, light converging element, objective optical system, optical pickup device, and optical information recording reproducing device An optical system for use in an optical pickup apparatus comprises a first optical surface having a superposition type diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each ring-shaped z... | 12/13/2011 |
| 8059515 | Optical pickup apparatus Provided is an optical pickup apparatus that can be made compact and is capable of producing stable push-pull signals. The optical pickup apparatus includes a light source, an objective lens, a diffraction element, a light-receiving element, and a control-driving se... | 11/15/2011 |
| 8040780 | Optical pickup device and optical disc apparatus In the optical pickup device, while reflection light reflected from the optical multi-layer disc is divided into a plurality of regions so as to produce a plurality of divided optical beams, the divided optical beams are focused onto different positions on a photode... | 10/18/2011 |
| 8036092 | Optical head device for detecting an error signal and an optical information recording/reproducing device To provide an optical head device, which can detect an excellent focus error signal for a dual layer optical recording medium, and optical information recording/reproducing device. Reflected light from a dual layer optical recording medium is diffracted by a diffrac... | 10/11/2011 |
| 8009543 | Hologram optical device, compatible optical pickup including the hologram optical device, and optical information storage medium system including the compatible optical pickup A hologram optical device, a compatible optical pickup including the hologram optical device, and an optical information storage medium system including the compatible optical pickup are provided. The hologram optical device includes: a first hologram area having a ... | 08/30/2011 |
| 7995446 | Optical element and optical pickup apparatus The present invention relates to an optical element for use in an optical pickup apparatus and an optical pickup apparatus. An optical element is provided for use in an optical pickup apparatus which records or reproduces information by converging a light flux from ... | 08/09/2011 |
| 7978586 | Optical pickup device An optical pickup device includes a diffraction grating 12 for separating a light beam emitted from a semiconductor laser element into at least three light beams. The diffraction grating 12 is divided into three regions by a straight line extending in ... | 07/12/2011 |
| 7936658 | Photodetector, diffraction grating, optical pickup and optical disc apparatus The present invention provides a photodetector capable of generating highly accurate tracking and focusing error signals free of variations in light quantity caused by interference, in an optical pickup with a two-wavelength multilaser. The photodetector comprises f... | 05/03/2011 |
| 7924682 | Unit to remove crosstalk in multi-layered disk, optical pickup including the unit, and optical recording and/or reproducing apparatus including the optical pickup A unit to remove crosstalk in a multi-layered disk, an optical pickup including the unit, and an optical recording and/or reproducing apparatus including the optical pickup, of which the optical pickup includes: a light source; an optical path changer to change the ... | 04/12/2011 |
| 7898927 | Optical pickup device A pickup device includes a diffraction grating 12 for separating a light beam emitted from the light source into at least three light beams. The diffraction grating 12 is divided into four regions by straight lines extending in a direction parallel to ... | 03/01/2011 |
| 7855945 | Optical pickup apparatus and optical element An optical pickup apparatus comprises first, second and third light sources to emit light fluxes of wavelength λ1, λ2 and λ3 for conducting recording and/or reproducing information for first, second and third optical information recording mediums ha... | 12/21/2010 |
| 7852736 | Optical element having aberration correction and optical pickup and optical information recording and/or reproducing apparatus equipped therewith An optical element (10) includes a spherical aberration correction hologram (14) and a color aberration correction hologram (15). For a first laser light requiring the greatest valid diameter, no affect is given to the wave front in either of th... | 12/14/2010 |
| 7839751 | Objective lens and optical system for optical pick-up An optical system of an optical pick-up is provided. The optical system includes an optical element including at least a phase shift surface among the surfaces thereof, and located closer to a light source than the objective lens. In this configuration, t1≦... | 11/23/2010 |
| 7817524 | Optical head device with multiple diffracting planes, and an optical information apparatus, computer, video recording/reproducing apparatus, video reproducing apparatus, server, and car navigation system including the same An optical head device 100 of the invention performs at least one of recording and reproducing of information for a plurality of types of optical recording mediums 7. A light source 1 emits a plurality of kinds of light having mutually different... | 10/19/2010 |
| 7813251 | Optical head device and optical information apparatus using this optical head device, and computer, optical disk player, car navigation system, optical disk recorder and optical disk server using this optical information apparatus Providing an objective lens with a large numerical aperture (NA), the present invention records or plays conventional optical disks such as CDs and DVDs at high light usage efficiency, using an optical head capable of recording or reproducing high-density optical di... | 10/12/2010 |
| 7801009 | Optical head device and diffractive element, optical information apparatus, computer, disc player, car navigation system, optical disc recorder, and vehicle In an optical head device responding to optical disc of different track pitches, an effect of both obtaining the tracking error signal by the optimum DPP method using a single diffractive element and suppressing the lowering amount in the amplitude of the tracking e... | 09/21/2010 |
| 7751297 | Optical pickup device A pickup device includes a diffraction grating 12 for separating a light beam emitted from the light source into at least three light beams. The diffraction grating 12 is divided into four regions by straight lines extending in a direction parallel to ... | 07/06/2010 |
| 7710848 | Optical pickup apparatus The present invention provides an optical pickup apparatus including: a first light source; a second light source; and a light-converging optical system including a coupling lens and an objective lens. The coupling lens includes a first diffractive structure. The op... | 05/04/2010 |
| 7656769 | Optical pickup and objective optical system for use in the same An optical pickup (1) includes a light source (6) capable of emitting laser beams of various wavelengths and an objective optical system (2). The objective optical system (2) includes at least two wavefront conversion surfaces (13 | 02/02/2010 |
| 7649825 | Splitting element, light emitter, and optical pickup apparatus An object of the invention is to provide a splitter, a light emitter, and an optical pickup apparatus which can realize a stable track servo. Because of the structure of an optical system including an objective lens (27) and a hologram pattern (25), ev... | 01/19/2010 |
| 7643395 | Diffraction element and optical pick-up apparatus having the same A diffraction element for an optical pick-up apparatus is capable of precisely controlling the tracking of the pick-up apparatus. The diffraction element includes a diffraction grating divided into a first, a second, and a third region. The second region is located ... | 01/05/2010 |
| 7616548 | Optical pickup apparatus and optical disc apparatus An optical pickup apparatus and an optical disc apparatus are adapted to raise the efficiency of utilization of the lasers of the apparatus for accurately detecting tracking errors by raising the intensity ratio of the beam of the 0-th order to the beams of the ±1s... | 11/10/2009 |
| 7616549 | Chromatic aberration-correcting element and optical pickup device using the same The present invention is related to a chromatic aberration-correcting element which allows the adoption of BDs even when DVD/CD light beams are incident. The chromatic aberration-correcting element has a diffractive structure formed thereon, which can correct chroma... | 11/10/2009 |
| 7577077 | Optical pickup apparatus and optical element An optical pickup apparatus comprises first, second and third light sources to emit light fluxes of wavelength λ1, λ2 and λ3 for conducting recording and/or reproducing information for first, second and third optical information recording mediums ha... | 08/18/2009 |
| 7551539 | Optical element, aberration correcting element, light converging element, objective optical system, optical pickup device, and optical information recording reproducing device An optical system for use in an optical pickup apparatus comprises a first optical surface having a superposition type diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each ring-shaped z... | 06/23/2009 |
| 7535814 | Optical pickup device An optical pickup device includes a diffraction grating for separating a light beam from a semiconductor laser into at least three light beams. The diffraction grating is partitioned into five areas each having a given periodic structure: a first area; a second area... | 05/19/2009 |
| 7515523 | Optical system for optical pickup apparatus, optical pickup apparatus, optical information recording and/or reproducing apparatus and aberration-correcting element for optical pickup apparatus An optical system utilized in an optical pickup apparatus comprising: an aberration-correcting element made of a plastic material; and a converging lens to converge a light flux emitted from the aberration-correcting element, the converging lens being made of a plas... | 04/07/2009 |
| 7502300 | Optical pickup and optical data processing apparatus An optical pickup is disclosed that includes a simplified phase correction element enabling sufficient correction of spherical aberration and realization of compatibility with blue-light, DVD-type and CD-type optical recording media with a two-stage numerical apertu... | 03/10/2009 |
| 7480228 | Optical disc apparatus Using one optical element on which diffraction gratings for diffracting two laser beams each having a different wavelength are formed at both surfaces, the first laser beam and the second laser beam outputted from two semiconductor lasers are made to converge on an ... | 01/20/2009 |
| 7468942 | Optical pickup, optical element, and information reproducing apparatus configured for use with any of plural types of recording media An optical pickup has a light source for emitting a plurality of laser beams with different wavelengths; and an objective lens for focusing the laser beams emitted from the light source on recording surfaces of plural types of information recording media. A diffract... | 12/23/2008 |
| 7463568 | Objective optical element and optical pickup apparatus An objective optical element of an optical pickup apparatus has a magnification m1 satisfying the following formula for a light flux of the wavelength λ1:−1/7≦m1≦−1/25 and |m1 | | 12/09/2008 |
| 7426169 | Optical pickup apparatus and optical pickup method An optical pickup apparatus for reading/reproducing data on an optical recording medium, includes a plurality of laser diodes configured to emit laser light of different wavelengths respectively, a photodetection device configured to detect each laser light, a diffr... | 09/16/2008 |
| 7411883 | Optical pickup device, optical information recording and reproducing apparatus, expander lens, coupling lens and chromatic aberration correcting optical element An optical pickup apparatus includes first and second light sources; an objective lens; a spherical aberration correcting optical unit; and a chromatic aberration correcting optical element which includes a diffractive surface on at least one optical surface of the ... | 08/12/2008 |
| 7369466 | Optical pickup apparatus and method for controlling phases of three beams An optical pickup apparatus and method are provided. The apparatus and method include a light source unit having a holder in which an optical module having first and second light sources for emitting light having different wavelengths and a grating are installed, an... | 05/06/2008 |
| 7369481 | Optical element, aberration correcting element, light converging element, objective optical system, optical pickup device, and optical information recording reproducing device An optical system for use in an optical pickup apparatus comprises a first optical surface having a superposition type diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each ring-shaped z... | 05/06/2008 |
