Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

28723 results about "Waveguide" patented technology

A waveguide is a structure that guides waves, such as electromagnetic waves or sound, with minimal loss of energy by restricting expansion to one dimension or two. There is a similar effect in water waves constrained within a canal, or guns that have barrels which restrict hot gas expansion to maximize energy transfer to their bullets. Without the physical constraint of a waveguide, wave amplitudes decrease according to the inverse square law as they expand into three dimensional space.

Cordless Hand-Held Ultrasonic Cautery Cutting Device

ActiveUS20090143805A1Alter functionAlter performanceUltrasound therapySurgical instruments for heatingHand heldWaveguide
A disposable ultrasonic surgical handle connectable to an ultrasonic waveguide, a battery, and an ultrasonic-movement-generator assembly includes a first handle body portion defining therein an aseptically sealable battery-holding compartment shaped to receive the battery therein, a second handle body portion connected to the first handle body portion, and an electrical couple. The second handle body portion has a waveguide attachment dock exposed to the environment and an ultrasonic-movement-generator assembly dock exposed to the environment and shaped to connect the ultrasonic waveguide in the waveguide attachment dock to the ultrasonic-movement-generator assembly through the second handle body portion. The electrical couple is operable to connect a battery within the battery-holding compartment to the ultrasonic-movement-generator-assembly when the ultrasonic-movement-generator assembly is docked at the ultrasonic-movement-generator assembly dock.
Owner:COVIDIEN AG

Medical imaging, diagnosis, and therapy using a scanning single optical fiber system

An integrated endoscopic image acquisition and therapeutic delivery system for use in minimally invasive medical procedures (MIMPs). The system uses directed and scanned optical illumination provided by a scanning optical fiber or light waveguide that is driven by a piezoelectric or other electromechanical actuator included at a distal end of an integrated imaging and diagnostic / therapeutic instrument. The directed illumination provides high resolution imaging, at a wide field of view (FOV), and in full color that matches or excels the images produced by conventional flexible endoscopes. When using scanned optical illumination, the size and number of the photon detectors do not limit the resolution and number of pixels of the resulting image. Additional features include enhancement of topographical features, stereoscopic viewing, and accurate measurement of feature sizes of a region of interest in a patient's body that facilitate providing diagnosis, monitoring, and / or therapy with the instrument.
Owner:UNIV OF WASHINGTON

Articulating ultrasonic surgical shears

An ultrasonic surgical instrument is described which incorporates an articulating shearing end-effector. The instrument comprises an ultrasonic transducer, an ultrasonically activated end-effector, and a substantially solid ultrasonic waveguide that connects the ultrasonic transducer to the end-effector. The waveguide comprises a transmission section extending from the transducer to a fixed node, and an articulation section extending from the fixed node to a pivoting node. The end-effector includes a bifurcated waveguide segment. A handle is adapted to hold the transducer. An outer sheath extends from the handle to the end-effector and surrounds the waveguide. An actuation trigger is rotatably positioned on the handle, and an actuation arm extends from a distal end of the actuation trigger to the pivoting node.
Owner:ETHICON ENDO SURGERY INC

Multi-touch sensing display through frustrated total internal reflection

High-resolution, scalable multi-touch sensing display systems and processes based on frustrated total internal reflection employ an optical waveguide that receives light, such as infrared light, that undergoes total internal reflection and an imaging sensor that detects light that escapes the optical waveguide caused by frustration of the total internal reflection due to contact by a user. The optical waveguide may be fitted with a compliant surface overlay to greatly improve sensing performance, minimize the affect of contaminants on and damage to the contact surface, to generally extend system life and to provide other benefits. The systems and processes provide true multi-touch (multi-input) and high-spatial and temporal resolution capability due to the continuous imaging of the frustrated total internal reflection that escapes the entire optical waveguide. Among other features and benefits, the systems and processes are scalable to large installations and are well suited for use with rear-projection and other display devices.
Owner:MICROSOFT TECH LICENSING LLC

Light collection and illumination systems employing planar waveguide

An apparatus for distributing light from a waveguide through a collimating array, or collecting light over a given area into a waveguide. Light received within a waveguide is propagated transmissively and retained by total internal reflection, except in response to impinging upon deflector elements which sufficiently redirect the light to escape the waveguide into a collimator array that aligns and distributes the light. In a light collector, a collection array collects and collimates the received light and directs it at the surface of a waveguide, within which deflectors properly positioned in relation to each collector of the collector array, deflect the angle of the light so that it propagates through the waveguide in response to total internal reflection. The apparatus can be fabricated into an efficient and compact form.
Owner:S V V TECH INNOVATIONS

Prismatic multiple waveguide for near-eye display

A near-eye display includes a compound waveguide for presenting viewers with virtual images visible within an eyebox at a limited relief distance from the compound waveguide. The compound waveguide is assembled from a plurality of waveguides that are at least partially optically isolated for conveying different portions of the virtual image. An input couple injects the different portions of the virtual image into predetermined combinations of the waveguides, and an output coupling ejects the different portions of the virtual image from the waveguides toward the eyebox in a form that at least partially constructs a pupil within the eyebox.
Owner:VUZIX

Optical device and virtual image display device

A virtual image display device is provided which displays a two-dimensional image for viewing a virtual image in a magnified form by a virtual optical system. The virtual image display device includes an optical waveguide (13) to guide, by internal total reflection, parallel pencil groups meeting a condition of internal total reflection, a first reflection volume hologram grating (14) to diffract and reflect the parallel pencil groups incident upon the optical waveguide from outside and traveling in different directions as they are so as to meet the condition of internal total reflection inside the optical waveguide and a second reflection volume hologram grating (15) to project the parallel pencil groups guided by internal total reflection inside the optical waveguide as they are from the optical waveguide by diffraction and reflection thereof so as to depart from the condition of internal total reflection inside the optical waveguide. Some of the parallel pencil groups guided through the optical waveguide being totally reflected different numbers of times for a period from external incidence upon the optical waveguide until outgoing from the optical waveguide.
Owner:SONY CORP

Aperture matched polyrod antenna

InactiveUS20080252541A1Minimizes and reduces end reflection and phase variationMinimizing and reducing diameterAdditive manufacturing apparatusWaveguide type devicesGaussian beamLight beam
A dielectric polyrod having at least one tapered section, where a section exposed outside of the waveguide is tapered a long a curve that depends on the dielectric constant of the material used. The invention also relates to an aperture matched polyrod antenna which includes the same and an inductive tuning element used to achieve wideband impedance match and to create a Gaussian beam in the radiating near field of the antenna, suitable to mimic a small region plane wave.
Owner:ARIZONA STATE UNIVERSITY

Semiconductor components, in particular photodetectors, light emitting diodes, optical modulators and waveguides with multilayer structures grown on silicon substrates

A semiconductor component, selected from the group comprising a photodetector, a light emitting diode, an optical modulator and a waveguide. The semiconductor component comprises an Si substrate, an active region formed on said substrate, and an Si capping layer on said active region. In one embodiment the active region is a superlattice comprising alternating layers of Si1-yCy and Si1-x-yGexCy, with the atomic fraction y of the Si1-x-yGexCy layers being equal to or different from the atomic fraction y of the Si1-yCy layers. In another embodiment it is a superlattice comprising a plurality of periods of a three-layer structure comprising Si, Si1-yCy and Si1-xGex layers. In a third embodiment it is a superlattice comprising a plurality of periods of a three-layer structure comprising Si, Si1-yCy and Si1-x-yGexCy layers, with the atomic fraction y of the Si1-x-yGexCy layers being equal to or different from the atomic fraction y of the Si1-yCy layers. The components have faborable optical and electrical properties and are suitable for integration on a Si substrate.
Owner:MAX PLANCK GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN EV

Use of amorphous carbon film as a hardmask in the fabrication of optical waveguides

Methods are provided for forming optical devices, such as waveguides, with minimal defect formation. In one aspect, the invention provides a method for forming a waveguide structure on a substrate surface including forming a cladding layer on the substrate surface, forming a core layer on the cladding layer, depositing an amorphous carbon hardmask on the core layer, forming a patterned photoresist layer on the amorphous carbon hardmask, etching the amorphous carbon hardmask, and etching the core material.
Owner:APPLIED MATERIALS INC

Cordless Hand-Held Ultrasonic Cautery Cutting Device

ActiveUS20090143797A1Alter functionAlter performanceUltrasound therapySurgical instrument detailsUltrasonic sensorTransducer
An ultrasonic surgical assembly includes a reusable cordless ultrasonic transducer and a disposable handle body that defines a battery-holding compartment therewithin, having an ultrasonic surgical waveguide, and operable to removably couple the transducer to the waveguide, the transducer being removably couplable to the handle body.
Owner:COVIDIEN AG

Electooptical Communications and Power Cable

An electrooptical communications and power cable has at least one light waveguide, which is arranged in a central multifibre bundle consisting of a smooth flexible metal tube and provided with a primary jacket. Two layers of stranded metal wires are extended coaxially to the multifibre bundle. The metal wires are also used for relieving a traction and / or transversal load. The internal metal wire layer consists of metal wires exhibiting a good electric conductivity. The external metal wire layer has metal wires which are arranged alternately individually and / or group groupwisely and exhibit a good electrical conductivity and metal wires exhibiting a high traction strength. The two wire layers are held at a distance (a) from each other by an insulating layer. The communications and power cable is used first of all for an electrooptical power connection between two voltage converters in an intelligent system.
Owner:BRUGG KABEL

Methods and apparatus for controlling photoresist line width roughness

The present invention provides methods and an apparatus for controlling and modifying line width roughness (LWR) of a photoresist layer. In one embodiment, an apparatus for controlling a line width roughness of a photoresist layer disposed on a substrate includes a chamber body having a top wall, side wall and a bottom wall defining an interior processing region, a microwave power generator coupled to the to the chamber body through a waveguild, and one or more coils or magnets disposed around an outer circumference of the chamber body adjacent to the waveguide, and a gas source coupled to the waveguide through a gas delivery passageway.
Owner:APPLIED MATERIALS INC

Preconnectorized fiber optic drop cables and assemblies for efficient deployment

A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of a optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aides in mating the preconnectorized cable with a complimentary receptacle.
Owner:CORNING OPTICAL COMM LLC

Waveguide and method of smoothing optical surfaces

Disclosed is a waveguide having a light inlet surface and a viewing surface comprising stacked core layers separated by clad layers to form channels and bearing a smoothing layer on at least one of the light inlet surface or the viewing surface thereof.
Owner:SKC HAAS DISPLAY FILMS CO LTD

Multi-touch sensing through frustrated total internal reflection

High-resolution, scalable multi-touch sensing display systems and processes based on frustrated total internal reflection employ an optical waveguide that receives light, such as infrared light, that undergoes total internal reflection and an imaging sensor that detects light that escapes the optical waveguide caused by frustration of the total internal reflection due to contact by a user. The optical waveguide when fitted with a compliant surface overlay provides superior sensing performance, as well as other benefits and features. The systems and processes described provide true multi-touch (multi-input) and high-spatial and temporal resolution capability due to the continuous imaging of the frustrated total internal reflection that escapes the entire optical waveguide. Among other features and benefits, the systems and processes are scalable to large installations.
Owner:MICROSOFT TECH LICENSING LLC

Method for manufacturing photoelectric conversion device

To form a microcrystalline semiconductor with high quality which can be directly formed at equal to or less than 500° C. over a large substrate with high productivity without decreasing a deposition rate. In addition, to provide a photoelectric conversion device which employs the microcrystalline semiconductor as a photoelectric conversion layer. A reactive gas containing helium is supplied to a treatment chamber which is surrounded by a plurality of juxtaposed waveguides and a wall, the pressure in the treatment chamber is maintained at an atmospheric pressure or a subatmospheric pressure, microwave is supplied to a space sandwiched between the juxtaposed waveguides to generate plasma, and a photoelectric conversion layer of a microcrystalline semiconductor is deposited over a substrate which is placed in the treatment chamber.
Owner:SEMICON ENERGY LAB CO LTD

Polarization mode dispersion compensation

Polarization mode dispersion in an optical signal transmitted through a waveguide of a communications system is compensated by separating the dispersed signal into components corresponding to principal polarization states. The components are delayed by respective delays differing by a delay increment which is controlled to correspond to the dispersion delay and the delayed components are recombined to provide a dispersion compensated optical output signal. Each of the delays is provided by an chirped Bragg reflector forming part of a delay line, the Bragg reflectors comprising optical fibres with chirped intracore index gratings. Transducers or temperature controllers acting on one of the fibres allows dimensional control of the grating periodicity such that the position of Bragg reflection is variable. Wavelength division multiplexed optical signals are compensated using sampled gratings which allow a common Bragg reflection position for each wavelength.
Owner:RPX CLEARINGHOUSE

Micro-fabricated optical waveguide for use in scanning fiber displays and scanned fiber image acquisition

Small, rugged scanners micro-fabricated from commercial optical fibers to form waveguides or other structures. The scanning waveguide has a distal portion on which is formed a non-linear taper with a diameter that decreases toward a distal end. Optionally, a hinge portion having a reduced diameter can be formed in the distal portion, improving the scanning properties of the waveguide. A micro-lens can be integrally formed at the distal tip of the waveguide with either a droplet of an optical adhesive, or by using an energy beam to melt the material of the waveguide to form a droplet. The droplet is shaped with an externally applied force. When mechanically driven in vibratory resonance, the tip of the optical waveguides moves in linear or two-dimensional scan patterns of relatively high amplitude and frequency, and large field of view. The scanner can be used either for image acquisition or image display.
Owner:UNIV OF WASHINGTON +1

Aerosol Delivery Device With an Illuminated Outer Surface and Related Method

The present disclosure relates to aerosol delivery devices that may include components configured to convert electrical energy to heat and atomize an aerosol precursor composition. An outer body may at least partially enclose the components. An illumination source may be configured to output electromagnetic radiation. For example, a light emitting diode may output light. A waveguide may be configured to receive the electromagnetic radiation from the illumination source and provide illumination at an outer surface of the outer body. The waveguide may include an energy conversion material configured to alter a wavelength of the electromagnetic radiation outputted by the illumination source to change a color of, or otherwise affect, the illumination. The illumination may also be dynamically adjusted. The waveguide may define the outer body, or the waveguide may be received with a separate outer body. Related methods are also provided.
Owner:RAI STRATEGIC HLDG INC +1

Cordless Hand-Held Ultrasonic Cautery Cutting Device

InactiveUS20090143800A1Alter functionAlter performanceUltrasound therapySurgical instrument detailsRechargeable cellHand held
An ultrasonic surgical assembly for connection to an ultrasonic surgical handle includes a reusable exterior body defining an internal compartment and having a connection operable to removably secure the body in a body-holding compartment within the ultrasonic surgical handle, a reusable cordless ultrasonic-movement-generation assembly disposed in the compartment and having an output couple removably attachable to an ultrasonic waveguide and operable to impart ultrasonic movement to the ultrasonic waveguide, and a reusable and rechargeable battery disposed in the compartment and electrically connected to and powering the assembly.
Owner:COVIDIEN AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products