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| Number | Title | Issue Date |
| 8184259 | Decorative plate for casing and casing A decorative plate for a casing is attached to a casing, and utilized. The decorative plate is configured by a plate-shaped transparent base member, a color half mirror layer, placed on the lower face of the transparent base member, that is made of a metal thin film... | 05/22/2012 |
| 8064036 | Liquid crystal optical switch configured to reduce polarization dependent loss An optical device has the structure to perform switching and attenuation of an optical beam with reduced polarization dependent loss (PDL). The optical device includes a birefringent displacer and two liquid crystal (LC) structures. The first LC structure is used to... | 11/22/2011 |
| 7929108 | Optical switching device with reconfigurable channel spacing An optical switching device includes an array of liquid crystal macropixels, wherein each macropixel includes at least two liquid crystal subpixels. The subpixels may be controlled together to act as a single polarizing pixel, or independently to act as multiple pol... | 04/19/2011 |
| 7428036 | Liquid crystal switchable coupler for coupling at least two unpolarized light inputs A switchable coupler (10) has a first waveguide (15) defining an inlet port (31) for a first unpolarized light input (A) and a first outlet port (32), and also a second waveguide (16) defining an inlet port (41) for a second... | 09/23/2008 |
| 7361878 | Image display apparatus and image pickup apparatus with two dimensional scanning An image forming apparatus with a light source unit emitting a light beam optically modulated based on image/video information, a scanning unit for scanning the light beam emitted from the light source unit two-dimensionally, an optical system that guides the light ... | 04/22/2008 |
| 7356215 | Methods and apparatus for selectively coupling optical paths An optical cross connect includes first and second planar layers having m and n optical path(s), respectively. An optical switch array comprising a plurality of optical switches is disposed to enable optically coupling any optical path of the first planar layer with... | 04/08/2008 |
| 7349157 | Optical splitting device and optical communication terminal comprising such a device An optical splitting device is intended to receive at an input two beams of different wavelengths. The device includes a polarizing beam splitter designed to selectively transmit part of the beam having one of the wavelengths towards a first output or a second outpu... | 03/25/2008 |
| 7343064 | Optical switch and optical add/drop multiplexer To provide a wavelength-selection optical switch able to select a light with a certain wavelength and an optical add/drop multiplexer using the same. An optical switch comprising: a silicon substrate; a glass substrate arranged to face a surface of the silicon subst... | 03/11/2008 |
| 7339714 | Variable blazed grating based signal processing A light processing system includes an array of optical signal processing devices. The array of processing devices are operable to receive at least some of a first signal part and to modulate the first signal part based at least in part on a control signal received f... | 03/04/2008 |
| 7339563 | High performance switchable polarizers for optical projection displays and circuits for driving the polarizers The invention is directed towards high performance switchable polarizers for optical projection displays. One embodiment of the invention is a switchable polarizer with (1) two conductive electrodes and (2) a liquid crystal material that is positioned between the tw... | 03/04/2008 |
| 7336855 | Integration of a waveguide self-electrooptic effect device and a vertically coupled interconnect waveguide A self-electrooptic effect device (“SEED”) is integrated with waveguide interconnects through the use of vertical directional couplers. Light initially propagating in the interconnect waveguide is vertically coupled to the active waveguide layer of the SEED and,... | 02/26/2008 |
| 7315662 | Electronic and optical devices and methods of forming these devices Electronic and optical (or photonic) devices with variable or switchable properties and methods used to form these devices, are disclosed. More specifically, the present invention involves forming layers of conductive material and dielectric material or materials wi... | 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 |
| 7305188 | Wavelength demultiplexing unit In a WDM transmission system, a wavelength selecting switch demultiplexes a first WDM light containing a plurality of wavelength components into a plurality of single wavelength lights each containing corresponding one of the wavelength components, effects multiplex... | 12/04/2007 |
| 7300157 | Pixel-shifting projection lens assembly to provide optical interlacing for increased addressability A projection display system includes a projection lens assembly that has multiple projection lens elements that are configured to receive light imparted with display information by a pixelated display device. The projection lens elements project the light toward a d... | 11/27/2007 |
| 7292749 | System for electromagnetic field conversion A system is provided for conversion of a first electromagnetic field into a desired second electromagnetic field, for example for coupling modes between waveguides or into microstructured waveguides. The system includes a complex spatial electromagnetic field conver... | 11/06/2007 |
| 7289170 | Method and apparatus for compensating for interlaced-scan type video signal Disclosed are an apparatus and a method for compensating for an interlaced-scan type video signal for stably displaying the video signal in the LCD panel. An aft part of 264th data of a first field and a fore part of 23rd data of a second field... | 10/30/2007 |
| 7253873 | Dynamic gain equalizer A dynamic gain equalizer (1) comprises a spectroscope (4) for separating a light entering from an incoming end, a liquid crystal optical switch (5) for receiving spectral components separated by the spectroscope (4), and a lens system ( | 08/07/2007 |
| 7236660 | Reconfigurable optical add-drop module, system and method An apparatus, system, and method for all-optical wavelength add-drop switching are provided. A number of optical ports, including at least one input port and at least one output port, are each optically coupled to a respective dispersive element. When a multichannel... | 06/26/2007 |
| 7215853 | Optical module formed on common substrate for branching an optical signal A collimator 111 for an input light, a collimator 112 for an output light, a collimator 113 for a branched light, a collimator 114 for an inserted light and a wavelength selecting filter 115 are provided on a common substrate 13... | 05/08/2007 |
| 7212743 | Optical switch device, and optical reception device and optical switch network in which the optical switch device is applied The configuration of a liquid crystal switch capable of reducing attenuation in an optical switch, and an optical reception device and an optical switch network that use this liquid crystal switch device are described. The liquid crystal switch device includes optic... | 05/01/2007 |
| 7212695 | Variable optical delay line with a large continuous tuning range In accordance with the invention, a variable optical delay line with a large continuous tuning range comprises an incremental variable delay line to provide delay selected from a sequence of incrementally differing delays and a continuous variable delay line to prov... | 05/01/2007 |
| 7209618 | Scanner transparent media adapter using fiber optic face plate A transparent media adapter for scanning transmissive media on a flatbed scanner comprises a fiber optic face plate. The fiber optic face plate translates the image from the media to the scanner focal plane. ... | 04/24/2007 |
| 7209212 | Tunable optical integrated element using liquid crystal as active layer The present invention discloses a tunable optical integrated element using liquid crystal as an active layer, which is applied to filters, couplers or optical add/drop multiplexer. The present invention includes a layer of liquid crystal as an active layer, a first ... | 04/24/2007 |
| 7189361 | Analytical device with lightguide Illumination of capillary and microgrooves arrays An analytical cell including a lightguide with a plurality of conduits filled with a migration medium. The medium, the lightguide and a surrounding medium have refractive indices selected such that light entering the lightguide is internally reflected within the lig... | 03/13/2007 |
| 7177493 | Programmable optical add/drop multiplexer A multi-channel optical switching system particularly usable as a programmable optical add/drop multiplexer (POADM) in a multi-wavelength communication system. The switching system uses a thin film optical demux/mux that separates a multi-channel optical signal into... | 02/13/2007 |
| 7172288 | Display device including a spatial light modulator with plural image regions A display device includes a spatial light modulator and a light generator. The spatial light modulator may have an array of modulating elements with a plurality of image regions. The light generator may be configured to direct a different one of a plurality of subst... | 02/06/2007 |
| 7171066 | Optical module and optical transmission device An optical module includes a base portion; a surface type optical element receiving or emitting light; an optical waveguide being mounted on the base portion; a holding member being mounted on the base portion; a cap being mounted on the base portion; and a fixing m... | 01/30/2007 |
| 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 |
| 7167230 | Liquid crystal variable wavelength filter unit, and driving method thereof A liquid crystal variable wavelength filter unit and its driving method applicable for a Wavelength Division Multiplexing (WDM) communication system and an optical network using an optical fiber. The liquid crystal variable wavelength filter unit (130) includ... | 01/23/2007 |
| 7146070 | Wide steering-range motionless optical beam steering device, and methods of manufacture Electro-optically operated transmitters containing a wave guide liquid crystal beam steering device in series of fine beam steering devices as well as electrically switchable mirror are disclosed. The wave guide beam steering device is constructed on a planar lightw... | 12/05/2006 |
| 7146084 | Fiber optic light source for display devices A light source includes at least one optical fiber having a length and first and second ends and at least one electromagnetic wave source disposed along at least a portion of the length of the fiber for transmitting electromagnetic waves through a side surface of th... | 12/05/2006 |
| 7142751 | Methods and systems for chromatic dispersion compensation in switched grating WDM devices Methods and system for chromatic dispersion compensation in disperser-combiner optical systems. The chromatic dispersion in disperser-combiner optical systems is substantially compensated by, after separating the input optical radiation into distinct chromatic compo... | 11/28/2006 |
| 7127179 | Polarization encoder device A optical polarization encoding device (16) provides wavelength dependent processing of polychromatic optical signals without prior separation into narrow wavelength bands. Embodiments of the encoding device include a wavelength dependent tunable optical swit... | 10/24/2006 |
| 7125124 | Projection system A projection system includes a light source, an image unit, a projection unit, a light-reflection unit and a screen. The light source emits a light beam. The image unit receives the light beam from the light source and forms an image light. The projection unit is di... | 10/24/2006 |
| 7127172 | Optical frequency filter The present invention relates to an optical signal shaping device such as an optical filter having a profile such that transmission of light through the device varies as a function of frequency over a selected bandwidth. The optical signal shaping device of the pres... | 10/24/2006 |
| 7106389 | Optical shifter and projection type optical display system An optical shifter includes first and second optical shifting sections, each of which can transmit an incoming light ray after having shifted its optical axis and which are arranged such that a light ray transmitted through the first optical shifting section enters ... | 09/12/2006 |
| 7083283 | Projector Aspects of the invention can provide a projector capable of forming a projected image with an apparently seamless and smooth image quality in the stable state. As for the image light passed through a first unit, the polarization direction thereof can be appropriatel... | 08/01/2006 |
| 7050230 | Optical switch device Light incident on an input optical fiber is separated into p-polarized light and s-polarized light by a birefringent crystal. A voltage to be applied to a liquid crystal element having electrodes associated with the ray axes of the polarized light waves is controlle... | 05/23/2006 |
| 7050234 | Lossless beam combination in a dual fiber collimator using a polarizing beamsplitter A compact, in-line polarization combiner uses a folded, reflective optical path from a first fiber to a second fiber. The combiner includes first and second fibers at one end of an in-line package, and a third fiber at the other end of the in-line package. A first p... | 05/23/2006 |
