...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7171064 | Thermo-optic switch having fast rise-time A thermo-optic switch is operated in a novel near-impulse mode in which the drive pulse width is shorter than twice the diffusion time of the switch. The drive pulse width is less than the rise time of the steady-state optical response and also less than the rise ti... | 01/30/2007 |
| 7161592 | Electro-optical apparatus and electronic equipment A pixel electrode and a thin film transistor connected to the electrode are provided above one substrate. A shading film is provided above another substrate. The shading film has an overhanging portion defining a corner cutting in an opening area of each pixel in th... | 01/09/2007 |
| 7142342 | Electroabsorption modulator The electroabsorption modulator comprises a p-i-n junction structure that includes an active layer, a p-type cladding layer and an n-type cladding layer with the active layer sandwiched between the cladding layers. The electroabsorption modulator additionally compri... | 11/28/2006 |
| 7142343 | Electro-absorptive optical modulator module having monolithic integrated photo detector An electro-absorptive optical modulator module monolithic-integrated on a semiconductor substrate, which includes a distributed feedback laser having a grating for oscillating light and to output the oscillated light through a first end and a second end of the modul... | 11/28/2006 |
| 7099528 | Methods and devices for coupling electromagnetic radiation using diffractive optical elements Diffractive optical elements are used in methods and devices for coupling or distributing electromagnetic radiation. The diffractive optical. elements may be adapted to split one or more streams of radiation into multiple streams of radiation or to combine multiple ... | 08/29/2006 |
| 7071488 | Active matrix display device and thin film transistor display device The invention provides an active matrix display device in which active elements are formed on a first substrate, wiring lines are formed on a second substrate, an element chip having at least one active element is peeled off from the first substrate and is then tran... | 07/04/2006 |
| 7068904 | Optical element with periodic structure An optical element comprising a periodic structure in which a refractive index is distributed periodically and a deforming portion, which mechanically deforms by an external action, wherein the deforming portion is integrally arranged with the periodic structure alo... | 06/27/2006 |
| 7061023 | Integrated optical devices and methods of making such devices An integrated-optical device including a substrate having waveguide and a plurality of electrodes to receive electrical signals for controlling the light transmission through the pathways. The waveguide pathways are in an interaction zone of an electro-optically act... | 06/13/2006 |
| 7046425 | Multi-stage optical switching device An optical switching device contains an active stage coupled to a passive stage. The index of refraction in the active stage is variable to change the entry direction of a light beam into the passive stage, which has a fixed index of refraction. Because the light be... | 05/16/2006 |
| 7038835 | Optical deflection device and optical deflection method that control occurrence of alignment defect An optical deflection device includes an optical deflection element having a pair of transparent boards arranged in a mutually opposing manner. A liquid crystal layer is filled between the boards and forms a chiral smectic C phase. An orientation film orients liquid... | 05/02/2006 |
| 7034980 | Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using ... | 04/25/2006 |
| 7019890 | Hybrid electro-active lens An electro-active lens is disclosed. The lens includes at least one electro-active cell to provide a lens having at least two focal lengths, the electro-active cell capable of adjusting its focal length based on voltages applied to the electro-active cell. The volta... | 03/28/2006 |
| 7016095 | Method for fabricating an interference display unit An interference display unit with a first electrode, a second electrode and posts located between the two electrodes is provided. The characteristic of the interference display unit is that the second electrode's stress is released through a thermal process. The pos... | 03/21/2006 |
| 6999221 | Bimorphic polymeric photomechanical actuator A bimorphic polymeric photomechanical actuator, in one embodiment using polyvinylidene fluoride (PVDF) as a photosensitive body, transmitting light over fiber optic cables, and controlling the shape and pulse duration of the light pulse to control movement of the ac... | 02/14/2006 |
| 6995890 | Interference display unit An interference display unit with a first electrode, a second electrode and posts located between the two electrodes is provided. The characteristic of the interference display unit is that the second electrode's stress is released through a thermal process. The pos... | 02/07/2006 |
| 6985281 | Package for optical components An optoelectronic device including a header having an upper surface and including a plurality of conducting pins extending up through the upper surface; an optical device; a tunable optical filter, wherein the optical device and the tunable optical filter are arrang... | 01/10/2006 |
| 6975782 | Optical deflector using electrooptic effect to create small prisms An electrooptical deflector is presented. The electrooptical deflector includes a material that has a different refractive index for different polarization states and changes its refractive index in response to voltage (e.g., lithium niobate or lithium tantalite). I... | 12/13/2005 |
| 6970626 | Directional optical coupler A directional optical coupler is shown and described, which includes an optical cell that is made of a first transparent conductor, a second transparent conductor and an electro-optical member interposed between the two transparent conductors, the electro-optical me... | 11/29/2005 |
| 6964882 | Fabricating complex micro-electromechanical systems using a flip bonding technique A flip-bonding technique is used to fabricate complex micro-electromechanical systems. Various micromachined structures are fabricated on the front side of each of two wafers. One of the wafers is flipped over and bonded to the other wafer so that the front sides of... | 11/15/2005 |
| 6963441 | Deactivated electro-optic material and method of forming the same An electro-optically deactivated transmissive material comprises a plurality of chemicals which are sufficient, in combination, to enable formation of an electro-optic material having an index of refraction that is responsive to an electric field. The chemicals are ... | 11/08/2005 |
| 6958852 | Optical modulator, method of achieving velocity matching and impedance matching of optical modulator, and method of manufacturing optical modulator A Mach-Zehnder optical waveguide is disposed in a substrate made of a material having an electro-optic effect. Coplanar-waveguide modulating electrodes are disposed on a principal surface of the substrate. A dielectric layer is disposed on a reverse surface of the s... | 10/25/2005 |
| 6952298 | Electro-optical device, method of driving electro-optical device, method of selecting scanning line in electro-optical device, and electronic apparatus The invention provides an electro-optical device capable of reducing power consumption. In an organic EL display, the pixel circuits are provided at the intersection portions of the respective scanning lines and the respective data lines, respectively. The organic E... | 10/04/2005 |
| 6947218 | Fabry-perot etalon with independently selectable resonance frequency and free spectral range The invention relates generally to optical interference filters and interferometers. Methods, devices and device components for optical signal generation and processing using optical interference filters and interferometers are presented. The invention provides opti... | 09/20/2005 |
| 6947367 | Single means for converting beam widths of plural laser beams with different entry and exit angle with offset A low-profile optical disk device which performs recording and reproducing using a plurality of laser light sources with different wavelengths, without thug need for additional components. It is used as a DVD-Ram, CD-R or the like. It comprises a plurality of neighb... | 09/20/2005 |
| 6947625 | Optical deflector and optical switch The optical deflector comprises: an optical waveguide 12 of a dielectric material having electrooptical effect; and a pair of electrodes 10, 14 opposed to each other across the optical waveguide, an electric field is applied between the opposed electro... | 09/20/2005 |
| 6947205 | Bistable molecular mechanical devices activated by an electric field for electronic ink and other visual display applications An electric field activated bi-stable molecular system configured within an electric field generated by a pair of electrodes is provided for use, e.g., as electronic ink or other visual displays. The molecular system has at least one rotor portion connected to at le... | 09/20/2005 |
| 6940636 | Optical switching apparatus and method of assembling same In an optical switching apparatus having a mirror structure bonded to a substrate, the gap between the mirror structure and the substrate is controlled by mechanical standoffs placed between the mirror structure and the substrate. The mirror structure is bonded to t... | 09/06/2005 |
| 6934075 | Multilayer single lens structure with zooming and focusing functions The present invention discloses a multilayer single lens structure with zooming and focusing functions, particularly a lens structure that makes use of the special properties of crystalline grains and applying a voltage to achieve the zooming and focusing functions.... | 08/23/2005 |
| 6933013 | Vacuum deposition of dielectric coatings on volatile material In order to allow application of any coating under a vacuum over a volatile gelatinous layer, such as polymer dispersed liquid crystal (PDLC) on an optical glass substrate with a transparent electrode, such as indium tin oxide (ITO) on its surface, a layer of an int... | 08/23/2005 |
| 6933163 | Fabricating integrated micro-electromechanical systems using an intermediate electrode layer An intermediate electrode layer is used to fabricate an integrated micro-electromechanical system. An intermediate electrode layer is formed on an integrated circuit wafer. The intermediate electrode layer places drive electrodes a predetermined height above the sur... | 08/23/2005 |
| 6931164 | Waveguide devices incorporating Kerr-based and other similar optically functional mediums A waveguide device is provided comprising an optical waveguide core and a cladding optically coupled to the optical waveguide core. The cladding comprises an optically functional region defining a refractive index that is configured to vary in response to a control ... | 08/16/2005 |
| 6902454 | Process for laminating electrically addressable display A process laminates a flexible electrically addressable display and includes steps of: providing a flexible, electrically addressable liquid crystal display having two surfaces, placing a protective sheet over one of the surfaces, and heating and pressing the protec... | 06/07/2005 |
| 6882780 | Wavelength tuneable optical device An optical device having a photonic band gap element operative such that the refractive index can be varied through application of an electrical signal. This enables the manufacture of tuneable lasers, optical add/drop multiplexers and tuneable optical wavelength co... | 04/19/2005 |
| 6879431 | Optical deflection apparatus and optical deflection method A liquid crystal optical phase modulator includes first and second substrates. A plurality of strip-shaped individual electrodes that are arranged parallel to each other on one surface of the first substrate. A common electrode is arranged on one surface, which face... | 04/12/2005 |
| 6829079 | Optical path control apparatus with mirror section, and manufacturing method for the same An optical path control apparatus includes a first substrate. A second substrate is movably provided for the first substrate. A mirror section is provided on the second substrate. A driving section moves the second substrate such that a first optical path of input l... | 12/07/2004 |
| 6829070 | Electro-optic device and electronic device The invention provides an electro-optic device capable of keeping the cell gap constant or substantially constant throughout the substrate surface regardless of the existence of a liquid crystal inlet. The electro-optic device of the invention has a TFT array substr... | 12/07/2004 |
| 6798559 | Electro-optic spatial modulator for high energy density The present invention provides an imaging assembly comprising: (a) a modulator crystal comprising a first surface and a second surface substantially opposite to the first surface, wherein the first surface comprises an active area; and (b) a heating element for heat... | 09/28/2004 |
| 6791757 | Optical device for filtering and sensing An apparatus for filtering electromagnetic waves and sensing deposition of chemical species, the apparatus having a substrate having a surface relief structure containing at least one dielectric body with physical dimensions smaller than the wavelength of the filter... | 09/14/2004 |
| 6760493 | Coplanar integrated optical waveguide electro-optical modulator A coplanar integrated optical waveguide electro-optical modulator comprises a substrate (1) of an electro-optic material, at least two optical waveguides (41, 42) integrated in the substrate in correspondence of a surface (71) thereof, and an el... | 07/06/2004 |
| 6757101 | None-mechanical dual stage optical switches The present invention provides improved optical switches in which no mechanical movement is required to direct optical pathways between plural fiber ports. Advantageously, the inventive switches incorporate two-stage polarization rotation to improve isolation depth,... | 06/29/2004 |