Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
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| Number | Title | Issue Date |
| 7649676 | System and method to form unpolarized light A system and method are used to form an unpolarized light beam from a polarized light beam. A system comprises a source of radiation and a unpolarizing system. The source of radiation produces a linear polarized beam. The unpolarizing system has first and second opt... | 01/19/2010 |
| 7532390 | System for recovering input polarization state of optical beam at proportional intensity A method for recovering an initial linear state of polarization, of an optical beam after the beam has passed through an optical fiber and whose polarization state was disrupted, attaining power which is directly proportional to the power of the beam before it has p... | 05/12/2009 |
| 7324758 | Optical dispersion monitoring apparatus and optical dispersion monitoring method, and optical transmission system using same An optical dispersion monitoring apparatus and an optical dispersion monitoring method are capable of monitoring dispersion accurately with a simple construction in an optical transmission system using the same. To this end, the optical dispersion monitoring apparat... | 01/29/2008 |
| 7291829 | Light intensity detector A polarization separating element such as a beam splitter receives a first light of a first polarization plane. The polarization separating element derives out of the first light a second light of a second polarization plane set perpendicular to the first polarizati... | 11/06/2007 |
| 7289689 | Combinatorial polarization scramblers for many segment PMD emulator A PMD emulator includes at least two polarization phase plates. The rotation matrix of the at two phase plates are varied to reduce the required number of phase-plates without reducing the number of birefringent segments used. ... | 10/30/2007 |
| 7283745 | Methods and apparatus for constructing switch arrays for routing of optical signals so as to minimize power dissipation Techniques and systems for design of optical switch arrays so as to minimize power requirements are described. A design system includes a computer system hosting a design program. The design program receives parameters for the switch array, including a number N of o... | 10/16/2007 |
| 7221812 | Compact optics assembly for a QKD station A bulk-optics assembly for a transmitting/receiving QKD station (BOB1) in a two-way autocompensating QKD system (101) is disclosed. The assembly consists of a first beamsplitter (104) having a high (e.g., 90:10) beamsplitting ratio, a 50:50 beamsplitte... | 05/22/2007 |
| 7209284 | Optical amplifier using reflection-type variable optical attenuator for feedback An optical apparatus which is reduced in the number of optical devices arranged on a main optical signal transmission path, thereby reducing the size and cost of the device, and which is improved in optical transmission quality. An optical amplifier includes an ampl... | 04/24/2007 |
| 7190850 | PMD emulator A PMD emulator configured by connecting in this order: an input-side optical fiber 71 for receiving light to be measured; a first polarization rotating portion 73 including M DGD sections 76 (M is an integer equal to or more than 2) concatenated... | 03/13/2007 |
| 7170921 | Magneto-optic variable optical attenuator A magneto-optic variable optical attenuator is provided that is used to control the intensity of a light signal. The optical attenuator includes at least one polarizing element having an optical polarization axis, wherein the polarizing element transmits a portion o... | 01/30/2007 |
| 7142788 | Optical communications systems, devices, and methods Systems, apparatuses, and methods for producing and utilizing orthogonal optical data signals, which can be produced by modulating electrical data signals onto orthogonal polarization components of an optical carrier traveling in opposite directions in a common modu... | 11/28/2006 |
| 7027135 | Optical circuits for tunable second order PMD compensation and tunable dispersion compensation A method and an apparatus is provided for introducing tunable second order polarization mode dispersion compensation to an optical signal without introducing any first order polarization mode dispersion into the optical signal. A method and an apparatus is also prov... | 04/11/2006 |
| 7023601 | Optical E-field modulation using a Mach-Zehnder interferometer A method for modulating the E-field of an optical carrier signal utilizes a Mach-Zehnder modulator having a pair of independently controllable branches. A pair of independent branch drive signals VL(t) and VR(t) are derived. Each branch of the ... | 04/04/2006 |
| 7024057 | Optical device having dual microstrip transmission lines with a low-k material and a method of manufacture thereof The present invention provides an optical device. In one embodiment, the optical device includes an optical waveguide formed in or over a ridge located on a substrate. The optical device also includes a microstrip transmission line comprising a signal electrode and ... | 04/04/2006 |
| 6943850 | Optical apparatus and projection type display apparatus for reducing a physical distance between a light source and a display An optical apparatus for irradiating light emitted from a light source onto a predetermined object, comprising a polarized light separating optical element for passing a first of two linearly polarized light beams polarized in directions perpendicular to each other ... | 09/13/2005 |
| 6859573 | Double pass arrangement for a liquid crystal device An optical device for rerouting and modifying an optical signal that uses a double pass through a liquid crystal modulator is disclosed. The optical device includes a first polarizer for providing polarized light, a liquid crystal modulator for selectively modifying... | 02/22/2005 |
| 6853363 | Projection type image display apparatus A projection type image display apparatus projects, under magnification by using a projection lens, image information carried by a luminous flux emitted from a ferroelectric liquid crystal display device. A field-sequential color-decomposing illumination optical sys... | 02/08/2005 |
| 6847389 | Optical beam scanning device and image forming apparatus The present invention provides an optical beam scanning device and an image forming apparatus capable of restraining the light amount irregularity in the main scanning direction in the image plane. An optical beam scanning device of the present invention is f... | 01/25/2005 |
| 6810169 | Wavelength switch with independent channel equalization A modular optical platform for selective wavelength switching that can be adapted to perform various other functions, such as dynamic gain equalization (DGE) and add/drop multiplexing (ADM) provides the versatility and modularity that will be essential to the future... | 10/26/2004 |
| 6768573 | Polarization control optical space switch The present invention is directed to an optical space switch accommodating a plurality of input light paths and output light paths. The optical space switch comprises a plurality of polarization control optical switches, each consisting essentially of: polarization ... | 07/27/2004 |
| 6728019 | Optical gate and optical phase modulator An optical gate according to the invention comprises a polarization divider to divide an optical signal into two orthogonal polarization components and to output them as a first polarization component which precedes in the time base and a second polarization compone... | 04/27/2004 |
| 6665106 | Method for optical polarization control The invention specifies a method and apparatus for optical polarization control which enable non-ideal component behavior to be corrected by means of a calibration table. This ensures shorter constructional length, lower operating voltages or higher level... | 12/16/2003 |
| 6504642 | Birefringent optical device A polarization independent optical device is provided wherein the device has two optical paths that include one or more birefringent crystals, a electrically controllable rotator, and a fixed waveplate. The device may operate as a switch, attenuator, coup... | 01/07/2003 |
| 6498872 | Optical configuration for a dynamic gain equalizer and a configurable add/drop multiplexer An optical device for rerouting and modifying an optical signal that is capable of operating as a dynamic gain equalizer (DGE) and/or a configurable optical add/drop multiplexer (COADM) is disclosed. The optical design includes a front-end unit for provid... | 12/24/2002 |
| 6493139 | Optical switch The present invention relates to optical switches in which switching occurs by changing the rotation of the plane of polarization by application of an externally applied control signal, particularly to magneto-optical switches controlling the port by whic... | 12/10/2002 |
| 6476967 | Compact optical circulator with three ports The invention provides a compact optical circulator with three ports positioning between a dual-core collimator and a single-core collimator. The inventive circulator has a propagation director to couple a light from the dual-core collimator to one port o... | 11/05/2002 |
| 6462306 | System and method for material processing using multiple laser beams A material machining system for machining a workpiece (PCB, PWB etc.) for drilling blind vias. The system includes a laser supply system (20, 26, 30) for supplying discrete machining beams (22a, 22b) that are separate from each other. A deflecting devices... | 10/08/2002 |
| 6404552 | Projection type display device A projection type display device constructed so that light source beams via a polarization beam splitter are separated of colors by a color separating/synthesizing optical system and enter light valves disposed for every color light, the light beams exiti... | 06/11/2002 |
| 6400493 | Folded optical system adapted for head-mounted displays An optical imaging assembly for imaging light from a display. The optical assembly is constructed from first and second linear polarization filters, first and second lenses that are preferably concave-convex lenses, and first and second 1/4 wave plates. T... | 06/04/2002 |
| 6396637 | Image display device and method of manufacturing a light conductor for such an image display device An image display device comprising a light modulation panel, a light conductor arranged opposite the light modulation panel and a light source connected to the light conductor. The light conductor comprises a serrated foil which reflects a light beam emit... | 05/28/2002 |
| 6344919 | Methods and systems for producing linear polarization states of light at the end of a length of optical fiber Methods and devices are provided for quickly producing all possible linear polarization states of light at the output of a length of optical fiber. Linearly polarized light is input and is transmitted through a fiber. Due to the birefringence of the fiber... | 02/05/2002 |
| 6262834 | Wideband single sideband modulation of optical carriers The wideband single-sideband modulator generates single-sideband (SSB) modulation with suppressed carrier utilizing traveling-wave LiNbO.sub.3 modulators in a Sagnac loop. In the wideband single-sideband modulator, optical light from a linearly-polarized ... | 07/17/2001 |
| 6134031 | Polarization control optical space switch The present invention is directed to an optical space switch accommodating a plurality of input light paths and output light paths. The optical space switch comprises a plurality of polarization control optical switches, each consisting essentially of: po... | 10/17/2000 |
| 6049412 | Reflective Faraday-based optical devices including an optical monitoring tap A reflective Faraday-based optical system is formed to include a partially transmissive optical reflector so that a portion of the optical signal propagating through the system will not be reflected but instead used as an input signal to a monitoring syst... | 04/11/2000 |
| 6031658 | Digital control polarization based optical scanner High speed low cost billion point optical scanner using a binary optical polarization sensitive cascaded architecture network having binary switchable optical plates for scanning in one dimension(x-direction), two dimensions(x and y directions) and three ... | 02/29/2000 |
| 5790275 | Scanning optical system A scanning optical system having both a reading optical system and an image forming optical system is capable of using one or more components for both systems.... | 08/04/1998 |
| 5785898 | Potassium lithium tantalate niobate photorefractive crystals Photorefractive crystals having the formula K1-y Liy Ta1-x Nbx O3 wherein x is between 0 and 1 and y is between 0.0001 and 0.15. The crystals are useful as a photorefractive material for use in optica... | 07/28/1998 |
| 5644428 | Continuously variable beam splitter An optical beam splitter separates an input beam into two exit beams which angularly diverge from each other by a continuously variable amount. The degree of angular divergence is controlled by rotating a compound cylinder composed of a half-cylinder of b... | 07/01/1997 |
| 5532855 | Optical space switch device The invention provides an optical space switch device which provides variable interconnection of one- or two-dimensionally spatially multiplexed optical signals. The optical space switch device comprises a plurality of optical space switch stages stacked ... | 07/02/1996 |
| 5475525 | Transverse electrical filter operating optically The invention relates to a programmable transverse filter required for the matched filtering of signals with very wide passband. The signals to be filtered modulate one or more optical carriers (F1) in a modulator (MOD). Each carrier is distributed over s... | 12/12/1995 |
