Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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 |
| 7418173 | Waveguide type optical control element and process for its fabrication A waveguide type optical control element which has an optical waveguide made of an insulating material having an electro-optic effect or a thermo-optic effect, and a control electrode provided in contact with or proximity to the optical waveguide; the optical wavegu... | 08/26/2008 |
| 7400788 | Linearized optical modulator having a plurality of coupling functions Invention discloses an apparatus that provides linear optical modulation of light carrier signals by an electrical modulation signal. Linearized modulation is achieved through the selection of a spacing profile between two optical transmission waveguides. The spacin... | 07/15/2008 |
| 7389025 | Coupling light into microresonators An optical microresonator device is described including an optical waveguide and an optical microresonator positioned so as to optically couple to the waveguide. The waveguide includes a core and a metal cladding layer on at least part of one boundary of the core. | 06/17/2008 |
| 7373046 | Optical add/drop multiplexers A spectrally selective optical coupler is disclosed, comprising a first and a second waveguide; an external resonator defined by at least a first and a second mirror; and a respective deflecting portion in each of said waveguides for coupling light between the waveg... | 05/13/2008 |
| 7366379 | Optical component for free-space optical propagation between waveguides An optical component may comprise a horizontal member with two side walls and a substantially transparent end wall protruding from the horizontal member. The end wall, side walls and horizontal member may partially enclose an interior volume, and optical functionali... | 04/29/2008 |
| 7356227 | Optical switch, optical modulator and wavelength variable filter An optical switch, an optical modulator, and a wavelength variable filter each have a simple configuration, which requires only a low driving voltage, which is independent of polarization, and which can operate at high speed. An optical switch includes a 3-dB couple... | 04/08/2008 |
| 7340116 | Optical switch, optical modulator and wavelength variable filter An optical switch, an optical modulator, and a wavelength variable filter each have a simple configuration, which requires only a low driving voltage, which is independent of polarization, and which can operate at high speed. An optical switch includes a 3-dB couple... | 03/04/2008 |
| 7336854 | Optical switch, optical modulator and wavelength variable filter An optical switch, an optical modulator, and a wavelength variable filter each have a simple configuration, which requires only a low driving voltage, which is independent of polarization, and which can operate at high speed. An optical switch includes a 3-dB couple... | 02/26/2008 |
| 7317848 | Optical switch An optical switch in which the adverse effect of heating can be restrained is realized. An optical switch for switching a transmission path of an optical signal by a change in refractive index due to carrier injection comprises: a semiconductor substrate; an optical... | 01/08/2008 |
| 7315676 | Optical modulator, optical waveguide device and acousto-optic tunable filter apparatus The invention provides an optical modulator wherein appearance of radiation mode light can be suppressed to improve performances as a device. The optical modulator includes a multiplexing waveguide which in turn includes two input waveguides to which propagation lig... | 01/01/2008 |
| 7310460 | Optical device A light controlling means includes a shutter member and an actuator. The shutter member is disposed in a slit and has a function to shut off signal light propagated in the light path of an optical fiber array. The actuator is constructed to drive and move the shutte... | 12/18/2007 |
| 7302140 | Optical switch and matrix optical switch The invention provides an optical switch including a substrate which has conductivity or semiconductivity, an optical waveguide layer which is formed on the substrate, and a control electrode which is formed on the optical waveguide layer. The optical waveguide laye... | 11/27/2007 |
| 7302137 | Optical coupler apparatus and method A planar lightwave circuit coupler including first and second waveguides with curved coupling portions having radii of curvature selected such that the coupler has a splitting ratio that is substantially wavelength and polarization insensitive. ... | 11/27/2007 |
| 7292750 | Signal processing system A signal processing system (10) has a plurality of optical fibers (40, 42, 43) with their one ends (40) mounted in an array board (41) to receive electromagnetic radiation. A coupler (54) interconnects the other ends of the optical... | 11/06/2007 |
| 7289703 | Optical modulator, optical waveguide device and acousto-optic tunable filter apparatus The invention provides an optical modulator wherein appearance of radiation mode light can be suppressed to improve performances as a device. The optical modulator includes a multiplexing waveguide which in turn includes two input waveguides to which propagation lig... | 10/30/2007 |
| 7283704 | Optical signal-electric signal converter An optical signal to electrical signal converter of the present invention comprises an optical waveguide propagating a modulated optical signal therethrough; a pair of electrodes disposed at positions opposite to each other sandwiching the optical waveguide with in ... | 10/16/2007 |
| 7280713 | Optical modulator, optical waveguide device and acousto-optic tunable filter apparatus The invention provides an optical modulator wherein appearance of radiation mode light can be suppressed to improve performances as a device. The optical modulator includes a multiplexing waveguide which in turn includes two input waveguides to which propagation lig... | 10/09/2007 |
| 7260286 | Optical fiber coupling having liquid crystal adaptive coupler An optical fiber coupling, for example, an optical switch, for coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face o... | 08/21/2007 |
| 7257286 | Dual comb electrode structure with spacing for increasing a driving angle of a microscanner, and the microscanner adopting the same A dual comb electrode structure with spacing for increasing a driving angle of a micro mirror provided by MEMS (Micro-Electro-Mechanical system) structure and a microscanner adopting the same are provided. The dual comb electrode structure includes: a mirror unit fo... | 08/14/2007 |
| 7236674 | Optical waveguide device, coherent light source using the same and optical apparatus having the same An optical waveguide device has a substrate composed of a nonlinear optical material and a periodically domain-inverted structure having the same composition as the nonlinear optical material, where the domain-inverted structure has a refractive index distribution r... | 06/26/2007 |
| 7206473 | Optical module and optical switch constituting the same An optical module controls its output characteristics electrically and an optical switch constitutes the optical module. An optical waveguide circuit (PLC) and an electronic circuit (IC) for driving the PLC are mounted on the same substrate. The IC is composed of a ... | 04/17/2007 |
| 7203396 | All optical chopping using logic gates apparatus and method An all optical chopping device for shaping and reshaping comprising an all optical AND logic gate having a first input for receiving a first optical signal, a second input for receiving a second optical signal and at least one output. The AND gate may be arranged to... | 04/10/2007 |
| 7200290 | Optical switch An optical switch has an optical waveguide whose output path of an optical signal branches into two, a carrier injection section which is provided to a branch portion of the optical waveguide and to which carriers are injected, and a refractive index change section ... | 04/03/2007 |
| 7190862 | Methods and apparatus for optical switching using electrically movable optical fibers Methods and apparatuses for electrically controlled optical switches are presented. An electrically controlled optical switch includes a fixture formed using a laminated dielectric material, a first optical fiber having a fixed segment supported by the fixture and a... | 03/13/2007 |
| 7183877 | Directional coupler in coplanar waveguide technology The directional coupler (1) in coplanar waveguide technology comprises at least one first directional coupler unit (100) with a first connection (103) for feeding in or guiding out a wave, a second connection (104) for feeding in or guidi... | 02/27/2007 |
| 7184631 | Optical device An optical device includes an optical input waveguide, a branch/cross waveguide, an optical output waveguide and connection waveguides that connect the optical input and optical output waveguides to the cross/branch waveguide. The spot size of light propagating thro... | 02/27/2007 |
| 7177337 | Semiconductor optical integrated circuit A semiconductor optical integrated circuit includes: a semiconductor substrate; a light reflecting portion and a gain region, on the semiconductor substrate; a first optical waveguide connecting the reflecting portion and the gain region; and a second optical wavegu... | 02/13/2007 |
| 7171083 | One-by-N optical switch An all-optical one-by-N optical switch is provided that has fewer components, is easier to control and has fewer optical losses that prior art one-by-N optical switches. An optical switch of the present invention includes an active deflection element formed from an ... | 01/30/2007 |
| 7171068 | Method to improve an extinction ratio of an optical device A method to improve an extinction ratio of an optical device, the method includes positioning at least a majority of a plurality of micro-mirrors in an off-state position. A mirror assembly includes the plurality of micro-mirrors. The method also includes selectivel... | 01/30/2007 |
| 7170671 | High efficiency wavelength converters A method is provided for forming a waveguide region within a periodically domain reversed ferroelectric crystal wherein the waveguide region has a refractive index profile that is vertically and horizontally symmetric. The symmetric profile produces effective overla... | 01/30/2007 |
| 7167609 | Optical switch An optical switch has an input port, output ports, optical waveguides whose output path of an optical signal branch into two. A first stage optical switch section is provided in a branching portion of the optical waveguide, which switches a propagating path of an op... | 01/23/2007 |
| 7164822 | Variable optical gain control device A variable optical gain control device is capable of amplifying an optical signal while controlling its luminous intensity. The device is made up of optical waveguide paths which are formed on a flat face of a substrate and includes an input directional coupler for ... | 01/16/2007 |
| 7151870 | Apparatus for optically coupling a light source with an optical waveguide An optical fiber coupling, for example, an optical switch, for coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face o... | 12/19/2006 |
| 7145709 | Apparatus and methods for modulating refractive index An iono-refractive structure that includes one or more ion insertion layers having a real portion and an imaginary portion of the dielectric constant is provided. While both the real portion and the imaginary portion of the dielectric constant change, the change in ... | 12/05/2006 |
| 7113677 | Optical modulator, optical waveguide device and acousto-optic tunable filter apparatus The invention provides an optical modulator wherein appearance of radiation mode light can be suppressed to improve performances as a device. The optical modulator includes a multiplexing waveguide which in turn includes two input waveguides to which propagation lig... | 09/26/2006 |
| 7110641 | Device for directional and wavelength-selective optical coupling A device for directional and wavelength-selective optical coupling formed in a photonic crystal (12) and comprising two parallel waveguides (14, 16) separated by a coupling zone (18) enabling a particular frequency to be extracted from a signal ... | 09/19/2006 |
| 7103252 | Optical waveguide and fabricating method thereof An optical waveguide used in a WDM optical transmission system are fabricated by the following steps in order to be highly integrated and reduced in size and to have a more preferable design. Namely, a first cladding and a first core are formed on a substrate; at le... | 09/05/2006 |
| 7092419 | Wavelength agile laser An electric field that changes across space is synthesized, by applying voltage levels independent of one another at several locations. The independence in voltage levels allows the electric field that is synthesized to be made periodic or aperiodic. Such a synthesi... | 08/15/2006 |
| 7085461 | Optical fiber with visualization features An optical fiber includes a substantially transparent core that carries a light signal, a substantially transparent cladding surrounding the core, and within the cladding and distinct from the core, at least one visualization member facilitating visualization of one... | 08/01/2006 |
| 7085453 | Optical functional device and optical module An inventive optical functional device includes: two optical waveguides having mutually different equivalent refractive indices; and a connection through which the two optical waveguides are connected along an optical axis. The two optical waveguides are provided as... | 08/01/2006 |
