| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 359280000 | Magneto-optic | 27 |
| 20080198438 | Optical Element - An optical element comprises a fluid chamber, the fluid chamber having side and end walls, and contains a first fluid ( | 08-21-2008 |
| 20080198439 | MAGNETIC DISPLAY PIXEL AND MAGNETIC DISPLAY PANEL - Provided are a magnetic display pixel using an optical shutter having a magnetic material layer, and a magnetic display panel including the magnetic display pixel. The magnetic display pixel includes a magnetic material layer that transmits light when a magnetic field is applied and does not transmit the light when the magnetic field is not applied, a first electrode arranged on a lower surface of the magnetic material layer, a second electrode arranged on an upper surface of the magnetic material layer, and a spacer arranged at a side surface of the magnetic material layer to electrically connect the first electrode and the second electrode. | 08-21-2008 |
| 20080198440 | ACTIVE REFLECTIVE POLARIZER AND MAGNETIC DISPLAY PANEL COMPRISING THE SAME - Provided are an active reflective polarizer and a magnetic display panel comprising the same. The active reflective polarizer includes a magnetic material layer in which magnetic moments are arranged in one direction when a magnetic field is applied; and electrodes for applying magnetic fields to the magnetic material layer in two different directions. | 08-21-2008 |
| 20080218841 | Magneto-Optical Device and Manufacturing Method thereof - Magneto-optical crystals of each pixel of a magneto-optical device are magnetically and completely separated, and the entire surface thereof is flattened. | 09-11-2008 |
| 20080252960 | Optical Element - An optical element comprises a fluid chamber and a device for providing a magnetic field over at least a portion of the fluid chamber The fluid chamber has side portions and end portions, and contains a first fluid and a second fluid. The fluids are non-miscible and the second fluid is capable of being influenced by a magnetic field. The end portions of the fluid chamber are connected together only by the side portions. | 10-16-2008 |
| 20090046347 | OPTICAL ISOLATOR DEVICE - An optical isolator includes a birefringent material and a Faraday rotator. The birefringent material receives a forward light propagating in a forward direction and a backward light propagating opposite to the forward direction. The birefringent material has an optical axis, wherein the forward light has a first polarization aligned perpendicular to the optical axis and is configured to pass the first birefringent material substantially along the forward direction. At least a portion of the backward light has a second polarization not perpendicular to the optical axis. The first birefringent material can displace the backward light to form a first displaced backward light. A Faraday rotator can rotate the forward light, and the backward light or the first displaced backward light by a same predetermined angle along the rotation direction. | 02-19-2009 |
| 20090219602 | MAGNETO-OPTO PHOTONIC CRYSTAL MULTIPLAYER STRUCTURE HAVING ENHANCED FARADAY ROTATION WITH VISIBLE LIGHT - An apparatus, method, system, and computer-program product for producing magneto-optic materials in the blue and green wavelengths. The apparatus includes a substrate generally transparent to a light signal including a component at a predetermined visible frequency; a stack of optical multilayers overlying the substrate for transmitting the component with at least about forty percent power therethrough and having at least about twenty-four degrees of Faraday rotation per micron for the predetermined visible frequency less than about six hundred nanometers. The method includes processes for the manufacture and assembly of the disclosed materials, with the computer program product including machine-executable instructions for carrying out the disclosed methods. | 09-03-2009 |
| 20090231665 | Faraday Rotator Mirror and Method for Manufacturing the Same - A Faraday rotator mirror which is compact, allows high workability of manufacturing and has high reliability and high coupling efficiency is provided. The Faraday rotator mirror comprises a graded-index fiber, a Faraday rotator and a reflector mirror, wherein light incident via the graded-index fiber passes through the Faraday rotator to be reflected on the reflector mirror, and the reflected light passes through the Faraday rotator and emerges through the graded-index fiber. | 09-17-2009 |
| 20090237771 | FARADAY ROTATOR - A Faraday rotator having a magnet member constituted of a first magnet standing magnetized in the direction perpendicular to the optical axis and taken toward the optical axis, a second magnet standing magnetized in the direction perpendicular to the optical axis and taken against the optical axis, and a third magnet disposed between these magnets and standing magnetized in the direction parallel to the optical axis and taken toward the first magnet from the second magnet. A through-hole (hollow spaces) inside which a Faraday element is disposed, is provided through the center of these magnets and, where the length of the first magnet and that of the second magnet in the optical-axis direction are both represented by L | 09-24-2009 |
| 20090279161 | Active optical filter controlled by magnetic field - An active optical filter transmits or blocks light according to whether or not a magnetic field is applied, and functions as an optical filter transmitting light having a predetermined wavelength when light is transmitted according to a magnetic field. The active optical filter includes: an optical filter layer for transmitting or blocking light according to whether or not a magnetic field is applied; and a magnetic field applying unit surrounding the optical filter layer for applying a magnetic field to the optical filter layer. The optical filter layer has a multi-layer thin layer structure which is formed of two kinds of thin layers having different respective refractive indices and sequentially and periodically stacked on a substrate. | 11-12-2009 |
| 20100238536 | INTEGRATED SILICON/SILICON-GERMANIUM MAGNETO-OPTIC ISOLATOR - A magneto-optical isolator device is provided. The isolator device includes a substrate and a bottom cladding layer that is formed on the substrate. An optical resonator structure is formed on the bottom cladding layer. The resonator structure includes crystalline or amorphous diamagnetic silicon or silicon-germanium so as to provide non-reciprocal optical isolation. A top cladding layer is formed on the resonator structure. One or more magnetic layers positioned on the top cladding layer or between the top cladding or bottom cladding layers and the optical resonator structure. | 09-23-2010 |
| 20120057215 | SURFACE PLASMON POLARITON MODULATOR - A surface plasmon polariton modulator capable of locally varying a physical property of a dielectric material to control a surface plasmon polariton. The surface plasmon polariton modulator includes a dielectric layer, including first and second dielectric portions, which is interposed between two metal layers. The second dielectric portion has a refractive index which varies with an electric field, a magnetic field, heat, a sound wave, or a chemical and/or biological operation applied thereto. The surface plasmon polariton modulator is configured to control one of an advancing direction, an intensity, a phase, or the like of a surface plasmon using an electric signal. The surface plasmon polariton modulator can operate as a surface plasmon polariton multiplexer or a surface plasmon polariton demultiplexer. | 03-08-2012 |
| 20120236389 | ON-CHIP MINIATURE OPTICAL ISOLATOR - An optical structure for generating nonreciprocal loss is provided that includes a first substrate layer and a magneto-optical layer positioned on the first substrate layer. The magneto-optical layer achieves nonreciprocity with application of an external magnetic field so as to produce resonantly enhanced nonreciprocal loss. | 09-20-2012 |
| 20130070327 | MULTI-LAYER MAGNETO-OPTIC STRUCTURE - A structure ( | 03-21-2013 |
| 20130141773 | METHOD OF AMPLIFYING MAGNETO-OPTICAL KERR EFFECT BY USING PHOTON CRYSTAL STRUCTURES, AND PHOTON CRYSTAL HAVING AMPLIFIED MAGNETO-OPTICAL KERR EFFECT, METHOD OF FABRICATING PHOTON CRYSTAL - A method of amplifying a magneto-optical Kerr effect by using photon crystal structures, and a photon crystal having an amplified magneto-optical Kerr effect, and a method of fabricating the photon crystal. The method of amplifying a magneto-optical Kerr effect by using photon crystal structures includes amplifying the magneto-optical Kerr effect by fabricating a magnetic photon crystal including a crystal magnet and using a periodically-structured surface of the crystal magnet. | 06-06-2013 |
| 20130155483 | Optical Fiber Free Space Isolator and Method of Forming the Same - The present disclosure provides an optical fiber free space isolator. The optical fiber free space isolator can be used with various laser devices, and includes a magnetic support and an optical subassembly. The magnetic support is mounted at the output port of a laser device, and the optical subassembly is fixed to the magnetic support. The optical subassembly may be housed in a U-shaped slot formed in the magnetic support. The present invention further includes an assembly method for the optical fiber free space isolator. | 06-20-2013 |
| 20130314762 | DISPLAY DEVICE - A display device includes a flexible display panel with a magnetic pattern, the magnetic pattern including a magnetic substance, a magnetic sensor configured to recognize magnetism of the magnetic pattern and to sense a display area of the flexible display panel in accordance with the magnetic pattern, the display area being variable in a first direction, and a controller connected to the magnetic sensor and to the flexible display panel, the controller being configured to display on the flexible display panel an image corresponding to the display area of the flexible display panel sensed by the magnetic sensor. | 11-28-2013 |
| 20150362625 | PHOTONIC BAND GAP STRUCTURE WITH SUB-WAVELENGTH SCATTERING ELEMENTS - A structure includes a first material, the first material including an artificially structured array of elements, the first material further being arranged in a pattern to at least partially form a photonic band gap in a band gap frequency range. The first material has an effective permeability or an effective permittivity in the band gap frequency range that is determined at least partially by the elements in the array. | 12-17-2015 |
| 20160048042 | System and Method for Manipulating Color Changing Materials - Systems and methods of manipulating a color displayed by an article of wear comprising iron oxide colloidal nanocrystals arranged within chains are described. Steps may include forming the article of wear from a raw material that include the chains of nanocrystals, applying a magnetic field to the raw material, applying energy to at least some of the chains of nanocrystals to soften materials within the raw material immediately surrounding the chains of nanocrystals to which the energy is applied, adjusting a strength of the magnetic field to control the color displayed by the raw material, removing the energy to allow the materials within the raw material immediately surrounding the chains of nanocrystals to harden and fix a location of the nanocrystals within the chains, and removing the magnetic field. | 02-18-2016 |
| 359281000 | Modulation of polarized light via modulating input signal | 7 |
| 20080198441 | COLOR SELECTIVE ACTIVE POLARIZER AND MAGNETIC DISPLAY PANEL EMPLOYING THE SAME - Provided are a color selective active polarizer controlled by a magnetic field and a magnetic display panel employing the color selective active polarizer. The color selective active polarizer includes a magnetic material layer structured such that magnetic particles are buried in a transparent insulating medium. Dyes or color absorbing particles are mixed in the magnetic material layer. The color selective active polarizer transmits light polarized in a first direction and reflects light polarized in a second direction when a magnetic field is applied. The light polarized in the first direction transmitted by the color selective active polarizer has colors according to the dyes or color absorbing particles. | 08-21-2008 |
| 20080252961 | Optical transceiver - In an optical transceiver of the invention, a magnet-free Faraday rotator is arranged on an optical axis between a light-emitting part and an end face of an optical fiber, and after rotating a plane of polarization of light of a first wavelength output from the light-emitting part, the light is input to a polarization dependent wavelength-separating film as P-polarized light. The polarization dependent wavelength-separating film has a characteristic of passing the P-polarized light of the first wavelength, and reflecting S-polarized light of the first wavelength and light of a second wavelength output from the optical fiber. As a result it is possible to provide a single-core bidirectional optical transceiver that can be shortened in overall length, with a low loss and without affecting transfer characteristics. | 10-16-2008 |
| 359282000 | Using layered structure or plural mediums | 4 |
| 20080266644 | Micron-size optical Faraday rotator - In an embodiment, micron-size optical Faraday rotator includes a non-magnetic dielectric waveguide. The waveguide includes a plurality of perforations to form a photonic crystal. A magnetic cladding is disposed on at least one side of the waveguide. The Faraday rotator causes non-reciprocal Faraday rotation of an optical signal propagating within the waveguide. | 10-30-2008 |
| 20100142028 | Magneto-Optic Optical Modulator - In accordance with a particular embodiment of the present invention, a device for modulating an optical beam is provided. The device may include a substrate comprising a non-ferromagnetic material and a thin film comprising a ferromagnetic semiconductor material disposed on the substrate. The thin film may be disposed on the substrate such that at least part of an optical beam incident on the thin film at an angle reflects off of a surface of the thin film. The thin film may be responsive to a magnetic field applied to the thin film such that varying the magnetic field varies the polarization of the light beam reflected off of the surface of the thin film. | 06-10-2010 |
| 20130155484 | PLASMONIC MODULATOR INCORPORATING A SOLID-STATE PHASE CHANGE MATERIAL - Systems and methods are provided for modulating light of a wavelength of interest. The modulator assembly includes a plasmonic layer that supports surface plasmon polaritons at the wavelength of interest and a layer of solid-state phase change material having a first phase in which it is substantially transparent to light of the wavelength of interest and a second phase in which it is substantially opaque to light of the wavelength of interest. A control mechanism is configured to alter the phase of the solid-state phase change material between the first phase and the second phase. Each of the plasmonic layer and the layer of solid-state phase change material are configured as to provide a plasmonic mode of transmission for light of the wavelength of interest. | 06-20-2013 |
| 20140078571 | Active-Shutter 3D Glasses And Operating Method Thereof - An active-shutter 3D glasses and an operating method thereof, the active-shutter 3D glasses comprises: a frame comprising temples; left and right magneto-optical eyeglasses, supported by the frame, and comprising left and right transparent mediums and left and right rear polarizers, respectively; a magnetic field apparatus, located outside the left and right magneto-optical eyeglasses, and providing the left and right magneto-optical eyeglasses with a magnetic field which causes polarization planes of polarized light entering the left and right magneto-optical eyeglasses to rotate; and a signal module, connected with the magnetic field apparatus, and providing a electric-current signal to the magnetic field apparatus so that the magnetic field corresponds to the electric-current signal. | 03-20-2014 |
| 359283000 | With particular direction of the field in relation to the medium, beam direction or polarization | 1 |
| 20090052007 | REFLECTIVE MAGNETIC DISPLAY - A reflective magnetic display includes a magnetic material layer region formed between front and rear substrates, wherein the magnetic material layer region has magnetic particles that reflect or absorb incident light when magnetic moments are randomly oriented and reflect or transmit the incident light in, accordance with polarization of the incident light, when the magnetic moments are aligned in a direction and an electrode that is designed to apply a magnetic field inducing a magnetic moment alignment on the magnetic material layer region in accordance with electrical operation. | 02-26-2009 |
| 359284000 | Amplitude modulation | 1 |
| 20130120824 | REFLECTION TYPE VARIABLE OPTICAL ATTENUATOR - An input/output port, a birefringent element, variable polarization rotator, and a reflector are arranged along an optical axis in the order named. The variable polarization rotator includes permanent magnets for applying a fixed magnetic field to a Faraday rotator in an in-plane direction to magnetically saturate the Faraday rotator and a solenoid coil for applying a variable magnetic field to the Faraday rotator in a direction of the optical axis. A fixed magnetic field is applied in the <211> direction, in which the Faraday rotator is likely to be magnetically saturated. The Faraday rotator can be saturated with a low magnetic field of about 100 Oe. The permanent magnets may employ ferrite permanent magnets, which have weak magnetic forces. A variable magnetic field may also be reduced. Therefore, an air-core coil can be used. | 05-16-2013 |
