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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 9578. Отображено 100.
12-01-2012 дата публикации

Method of compiling shape data of a spectacle lens, spectacle lens shape data compiling device and spectacle lens

Номер: US20120008089A1
Автор: Kazuma KOZU, Takashi Hatanaka
Принадлежит: Hoya Corp

A spectacle lens capable of obtaining a good vision without feeling of discomfort, even being fitted into a frame having a large front angle, and a method of creating the shape data of the spectacle lens having dioptric power to be fitted into a frame having a lens front angle. The method corrects the shape data of a lens back surface so that the prismatic effect undergone via the lens of initial lens shape by a plurality of rays passing through a rotation center of the eye in a case where a lens front angle is provided is identical or close to the prismatic effect undergone via the lens of initial lens shape by the plurality of rays passing through the rotation center of the eye in a case where no lens front angle is provided.

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Номер записи: 1
26-01-2012 дата публикации

Opthalmic Lenses Having Reduced Base Out Prism

Номер: US20120019774A1
Автор: Andrew Whale, Hugh Mcloughlin, Jeffrey P. Krall, Trevor Steele
Принадлежит: Crossbows Optical Ltd

The invention generally relates to a lens and the method of manufacturing progressive addition lenses (PAL) to remove unwanted base out prism and minimize excessive convergence, comprising determining basic configuration of two major lens surfaces to provide a distance portion and near portion, wherein diopter power increases from the distance portion of the lens to the near portion; selecting an amount of prism reduction; and reducing base out prism that inherently occurs as diopter power increases by altering the configuration of the lens as a function of the amount of prism reduction to minimize any disruption of optical properties a lens while decreasing base out prism.

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Номер записи: 2
26-01-2012 дата публикации

Method for Providing a Spectacle Ophthalmic Lens by Calculating or Selecting a Design

Номер: US20120019776A1
Автор: Guillaume Giraudet
Принадлежит: Essilor International Compagnie Generale dOptique SA

A method for providing a spectacle ophthalmic lens to a wearer, the method comprising the following steps: providing a value, SV, representing the sensitivity of the wearer referred to a scale of sensitivity to perception of spatial orientation, according to both visual and non visual frames of reference; calculating a design of the spectacle ophthalmic lens or selecting a design in a spectacle ophthalmic lens design data base by adapting the management of residual astigmatism and/or optical power repartition according to gaze direction based on the value, SV, representing the sensitivity of the wearer referred to a scale of sensitivity to perception of spatial orientation.

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Номер записи: 3
02-02-2012 дата публикации

Optical electrowetting device

Номер: US20120026596A1
Автор: Bruno Berge, Julien Legrand, Mathieu Maillard, Nicolas Verplanck
Принадлежит: Varioptic SA

The invention concerns an optical electrowetting device a body comprising at least a first external surface and a second internal surface with a conical shape; a liquid-liquid interface between a first and a second immiscible liquids, the first liquid being a conducting liquid and the second liquid being an insulating liquid, wherein the liquid-liquid interface is able to move on the second internal surface by electrowetting effect; a first electrode in contact with the first liquid; a second electrode insulated from the first liquid by an insulating layer, the second electrode comprising at least a first electrical conductive track to be connected to a voltage source and extending from the first external surface of the body to the second internal surface; and a first layer covering the second internal surface of said body and being covered by the insulating layer, wherein the shape of the liquid-liquid interface is controllable by application of at least a first voltage between the first electrode and the first electrical conductive track, and wherein at least one of the body or the first layer is made of a resistive material.

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Номер записи: 4
01-03-2012 дата публикации

Liquid lens and apparatus incorporating the same

Номер: US20120050881A1
Автор: Ryo Ogawa, Shintetsu Go, Shoichi Yamazaki
Принадлежит: Canon Inc

A liquid lens includes a vessel having an inner wall and configured to contain liquid, an electrolyte liquid and a non-electrolyte liquid forming an interface therebetween and being contained in the vessel, and a voltage applying unit which applies a voltage to the electrolyte liquid. A shape of the interface between the electrolyte liquid and the non-electrolyte liquid is changed by application of the voltage. The inner wall of the vessel has varying affinity with the non-electrolyte liquid depending on a position on the inner wall where an end of the interface contacts the inner wall; and the affinity on the side of the inner wall where the non-electrolyte liquid is situated is lower than the affinity on the side of the inner wall where the electrolyte liquid is situated.

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Номер записи: 5
08-03-2012 дата публикации

Valve device for a variable focus lens

Номер: US20120057245A1
Автор: Gregor Storey, William Johnson
Принадлежит: ADLENS LTD

A valve device for a variable lens comprises: an inlet for receiving fluid from a reservoir; an outlet for passing fluid to a lens cavity; and a valve member, the valve member comprising a passageway for fluid communication between the inlet and outlet and a valve for closing the passageway; wherein the valve is actuated by turning the valve member about an axis of rotation and the passageway extends along the valve member in the axial direction.

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Номер записи: 6
05-04-2012 дата публикации

Electrofluidic imaging film, devices, and displays, and methods of making and using the same

Номер: US20120081777A1
Автор: Jason Heikenfeld, Kenneth Dean Andrew, Matthew Hagedon
Принадлежит: Gamma Dynamics LLC, University of Cincinnati

A device and method of making and using the same. The device includes first and second substrates that are spaced to define a fluid space. Polar and non-polar fluids occupy the fluid space. A first electrode, with a dielectric layer, is positioned on the first substrate and electrically coupled to at least one voltage source, which is configured to supply an electrical bias to the first electrode. The fluid space includes at least one fluid splitting structure that is configured to facilitate the movement of the non-polar fluid into a portion of the polar fluid. Fluid splitting structure assisted movement of the non-polar fluid splits the polar fluid.

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Номер записи: 7
21-06-2012 дата публикации

Varifocal lens structure and method of manufacturing the same

Номер: US20120154924A1
Автор: Jeong-Yub Lee, Kyu-dong Jung, Seung-Wan Lee, Woon-bae Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A varifocal lens structure and a method of manufacturing the same, the varifocal lens structure including: a frame having a fluid chamber filled with an optical fluid and formed of polymethylsiloxane (PDMS) containing a predetermined fluid; a transparent cover disposed on a top surface of the frame so as to cover the fluid chamber; a transparent elastic membrane disposed on a bottom surface of the frame so as to form a lower wall of the fluid chamber; and an actuator disposed on the elastic membrane.

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Номер записи: 8
16-08-2012 дата публикации

Lens module with electrostrictive member for driving lenes

Номер: US20120206815A1
Автор: Han-Lung Lee
Принадлежит: Hon Hai Precision Industry Co Ltd

An exemplary lens module includes a first lens array, a second lens array, an electrostrictive member and a power supply. The first lens array includes first lenses, and the second lens array includes second lenses, an optical axis of each second lens being aligned with that of the corresponding first lens. The electrostrictive member is made from an artificial muscle material spacing the first lens array and the second lens array. A thickness direction of the electrostrictive member is parallel to optical axes of the first lenses and second lenses, and the electrostrictive member is deformable along the thickness direction thereof when an electric current is applied thereon, thereby driving the first and second lens arrays to move toward or away from each other. The power supply is electrically connected to the electrostrictive member to provide the electric current to the electrostrictive member.

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Номер записи: 9
13-09-2012 дата публикации

Progressive-Power Lens

Номер: US20120229755A1
Автор: Ayumu Ito, Kazutoshi Kato, Tadashi Kaga, Toshihide Shinohara, Yohei Suzuki
Принадлежит: Seiko Epson Corp

A progressive-power lens has one surface which satisfies the following expressions CY ( DP )= CT ( DP ) CY ( P )< CT ( P ) where CT(DP) denotes a vertical direction curvature at the distance reference point, CY(DP) denotes a horizontal direction curvature, CY(P) denotes a horizontal direction curvature at a point on the principal meridian which is located further on the near portion than the progressive start point, and CT(P) denotes a vertical direction curvature at the point.

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Номер записи: 10
27-09-2012 дата публикации

Electro-wetting display device

Номер: US20120243071A1
Автор: Hsin-Hung Lee, Kuo-Lung Lo, Shu-Wei Kuo, Yu-Hsiang Tsai, Yun-Sheng Ku
Принадлежит: Industrial Technology Research Institute ITRI

An electro-wetting display device is provided. The device includes a first substrate and a second substrate disposed opposite thereto. A plurality of first electrodes and a plurality of corresponding second electrodes are disposed on the first substrate and face the second substrate. A barrier layer is between the plurality of first electrodes and the plurality of second electrodes, such that the plurality of first electrodes is electrically insulated from the plurality of second electrodes. A plurality of ribs is on the first substrate to form a plurality of pixel regions. A polar liquid and a non-polar liquid are between the first and second substrates. The barrier layer is between the polar liquid and at least one of the plurality of first electrodes and the plurality of second electrodes, and the non-polar liquid is in direct contact with the barrier layer in each pixel region.

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Номер записи: 11
04-10-2012 дата публикации

Bidirectional electrowetting actuation with voltage polarity dependence

Номер: US20120247960A1
Автор: Alex Volinsky, Nathan B. Crane, Pradeep Mishra
Принадлежит: UNIVERSITY OF SOUTH FLORIDA

A novel electrowetting system for the smooth continuous movement of a droplet across a single circuit using a continuous applied voltage regardless of polarity. The actuation of the droplet is achieved by introducing a diode into the idealized electrical circuit of the electrowetting system. The diode is in parallel with a capacitor (dielectric) and effectively shorts the droplet on the side of a lower potential electrode so that the entire voltage drop is across the dielectric over the opposite electrode. This creates an energy imbalance that moves the droplet towards the higher potential. If the voltage polarity is reversed, the direction of actuation will reverse as well.

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Номер записи: 12
08-11-2012 дата публикации

Variable power optical system

Номер: US20120281295A1
Автор: Iain A. Neil, James H. Jannard
Принадлежит: Blackeye Optics LLC

Liquid lens cells are used in a variable power optical system. In one embodiment, a stop is located between a first lens group comprising at least a first liquid lens cell and a second lens group comprising at least a second liquid lens cell. In one embodiment, a liquid lens cell controls an incident angle of light rays on an image surface.

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Номер записи: 13
15-11-2012 дата публикации

Transreflective vehicle mirror system

Номер: US20120287510A1
Автор: Dwadasi H.R. Sarma, Frederick F. Kuhlman
Принадлежит: Delphi Technologies Inc

A transreflective vehicle mirror system configured to be attached to a vehicle. The system includes an interior unit and/or exterior unit, each of which includes various arrangements of a transreflective layer optionally combined with a transparent display layer and/or a variable tint layer. The units can be configured and operated in a variety of ways to provide the same and/or enhanced features/functions normally associated with conventional side view mirrors, rear view mirrors (with or without an integrated information display), fold down visors (with or without a vanity mirror), and graduated tinting commonly found on the upper portion of automobile windshields. The interior unit and exterior unit can operate to a transparent state so that a field of view or direction viewed by the operator is not obstructed as is the case with conventional rear and side view mirrors, and fold-down sun-visors.

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Номер записи: 14
06-12-2012 дата публикации

Multi-view 3d image display apparatus and method

Номер: US20120307357A1
Автор: Eok-su KIM, Hong-seok Lee, Hoon Song, Jung-mok Bae, Kyu-hwan Choi, Yoon-sun Choi
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A three-dimensional (3D) image display apparatus and method are provided. The 3D image display apparatus includes an image generating unit configured to generate an image, an active optical device configured to change a propagation path of light containing the generated image, and provide the generated image to multiple viewpoints that are located along a first direction parallel to the image generating unit, and a varifocal lens configured to vary a focal position of the generated image along a second direction away from the image generating unit.

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Номер записи: 15
27-12-2012 дата публикации

Liquid micro-shutter display device

Номер: US20120327683A1
Автор: Youngjoo Yee
Принадлежит: LG ELECTRONICS INC

Disclosed is a display device. In detail, a liquid micro-shutter display device includes a light source emitting light, a transparent lower substrate positioned in an light path of the light source, an optical conversion unit performing at least one of a function of converting light from the light source into light having a different wavelength band corresponding to a sub-pixel and a function of reflecting ambient light corresponding to a sub-pixel, a transparent upper substrate positioned in an light path of light output from the optical conversion unit, and a liquid micro-shutter positioned between the transparent lower substrate and the transparent upper substrate and opening and closing the path of light or adjusting an open area.

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Номер записи: 16
24-01-2013 дата публикации

Display apparatus and method of driving the same

Номер: US20130021661A1
Автор: Hyeon Gu Cho, Sangil Kim, Seung-Jin Baek, Yeun Tae KIM
Принадлежит: Samsung Display Co Ltd

A transflective display apparatus includes a first electrode and a second electrode, which face each other and are separated from one another by a pixel electrode. In addition, a preparation voltage is applied to the first electrode or the second electrode before applying a driving voltage to the pixel electrode.

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Номер записи: 17
14-02-2013 дата публикации

Progressive multifocal ophthalmic lens

Номер: US20130038833A1
Автор: Bernard Bourdoncle, Cyril Guilloux, Damien Paille, Laurent Calixte, Marie-Anne Berthezene, Soazic Mousset
Принадлежит: Essilor International Compagnie Generale dOptique SA

The invention relates to a finished or semi-finished lens which comprises: a disc containing all the points of the lens that have the same abscissa and the same ordinate as points located within a circle in the reference plane having a diameter of 30 millimetres and centred on the prism reference point; a progression length of less than 14.5 millimetres; a first specific point having a cylinder value equal to the maximum cylinder value of all the points of the lens located in the nasal area and in the disc; and a second specific point having a cylinder value equal to the maximum cylinder value of all the points of the lens located in the temporal area and in the disc; a first ratio between: the maximum gradient of the cylinder for the points of the lens that have the same abscissa and the same ordinate as the points located on segments connecting the mounting cross to the first and second specific points, and surface addition of less than 0.095 per millimetre; and a second ratio between: the maximum cylinder value of the first and second specific points, and surface addition of no more than 0.85. The invention enhances the comfort of the wearer.

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Номер записи: 18
28-02-2013 дата публикации

Three-dimensional display device

Номер: US20130050807A1
Автор: Chia-Yen Lee, Ching-Tung Hsu, Ming-Wei Tsai, Rong-Chang Liang, Yen-I Chou, Yeong-Feng Wang
Принадлежит: Delta Electronics Inc

A 3D image display device with high resolution is disclosed. The device may deflect left and right eye images to a left and right eye of a viewer, respectively. As such, the viewer may see 3D images. The 3D image display device includes a plurality of electrically switchable light modulating cells containing two incompatible light modulating mediums. When a voltage is applied to electrodes of the electrically switchable light modulating cell, the interface between the incompatible light modulating mediums non-horizontally deforms corresponding to the electrowetting or electrostatic concept. The geometrical shape, size, and material of partition walls in the electrically switchable light modulating cells may reduce or eliminate misplacement of incompatible light modulating mediums while voltages are applied thereto. In addition, the method of manufacturing the 3D image display device is also disclosed.

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Номер записи: 19
07-03-2013 дата публикации

Optical fingerprint acquisition apparatus

Номер: US20130057669A1
Автор: Geum-yong Kim, Yo-Shik Shin
Принадлежит: UNION COMMUNITY Co Ltd

Provided is an optical fingerprint acquisition apparatus. The fingerprint acquisition apparatus has an improved optical lens unit and can correct distortion of an image caused by a light refractor. The optical lens unit includes two cylindrical lenses disposed so that an optical axis of incident light does not coincide with a central axis of the lenses. The optical lens unit corrects an image that is distorted into a rectangle by a light refractor, thereby restoring a square shape. In particular, the fingerprint acquisition apparatus is useful in the simultaneous acquisition of multiple fingerprints as well as the acquisition of a single fingerprint.

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Номер записи: 20
28-03-2013 дата публикации

DISPLAY DEVICE HAVING MULTI-COLOURED DISPLAY ELEMENTS

Номер: US20130077152A1
Автор: Bartels Frank, Bitman Andriy, Jerosch Dieter, Mueller-Marc Oliver
Принадлежит: Advanced Display Tecnology AG

The invention relates to a display apparatus having at least one electronically controllable display element that comprises: at least one nonpolar and at least two electrically conductive or polar liquids; a fluidically sealed volume having a visible sub-volume and at least two holding volumes connected fluidically to the visible sub-volume; and at least one voltage source that is applied to a first electrode arrangement; the visible sub-volume being of planar embodiment so that when the first electrode arrangement is in the zero-voltage state, the electrically conductive or polar liquids are drawn into the respective holding volume; and the display element furthermore comprising mechanical and/or electrical means for selectably retaining in their holding volumes those electrically conductive or polar liquids which are not intended to be moved into the visible sub-volume by an impingement of voltage on the first electrode arrangement. 115-. (canceled)16. A display apparatus having at least one electronically controllable display element that comprises:at least one nonpolar and at least two differently colored electrically conductive or polar liquids, at least the electrically conductive or polar liquids not being miscible with the nonpolar liquid, and the electrically conductive or polar liquids always being present physically separately from one another;a fluidically sealed volume having a visible sub-volume and at least two holding volumes, connected fluidically to the visible sub-volume, each for holding exactly one of the electrically conductive or polar liquids, in each of which at least a portion of the nonpolar liquid is located when the electrically conductive or polar liquid held in the respective holding volume is present in the visible sub-volume; andat least one voltage source that is applied to a first electrode arrangement and is designed to selectively permeate the entire visible sub-volume with an electric field,the visible sub-volume being of planar ...

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Номер записи: 21
25-04-2013 дата публикации

PROGRESSIVE ADDITION LENS

Номер: US20130100398A1
Автор: Lisichki Abraham, Ryndin Anna
Принадлежит: A-2 Vision Technologies

A progressive addition lens device is disclosed. The device comprises a lens body formed with a progressive power surface having a temporal part and a nasal part. The surface is characterized by an optical power map having a plurality of contours corresponding to transitions between optical powers across the surface, wherein at least 70% of the contours are substantially monotonic at the temporal part. 1. A progressive addition lens device , comprising: a lens body formed with a progressive power surface having a temporal part and a nasal part , and being characterized by an optical power map having a plurality of contours corresponding to transitions between optical powers across said surface ,wherein at least one contour is substantially monotonic across the entire progressive power surface, but has an inflection point at a meridian between said nasal part and said temporal part.215. The device according to claim 1 , wherein all contours above a horizontal line passing mm below a central horizontal line of said map are substantially monotonic at said temporal part.3. The device according to claim 1 , wherein at least some contours are non-monotonic at said nasal part.4. The device according to claim 1 , wherein at least some contours above a horizontal line passing 15 mm below a central horizontal line of said map are non-monotonic at said nasal part.5. The device according to claim 1 , wherein at least 70% of said contours are substantially monotonic at said temporal part.6. The device according to claim 1 , wherein all contours at a polar coordinate φ from about 0°−Δφ to about 0°+Δφ within said temporal part are substantially monotonic claim 1 , wherein Δφ is at least 60 degrees and φ is defined with respect to a central horizontal line of said lens body such that φ=0° is at said temporal part.7. The device according to claim 1 , wherein an angular span for which all the contours are substantially monotonic at said nasal part is of less than 40 degrees.8. The ...

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Номер записи: 22
09-05-2013 дата публикации

Multifocal lens with a diffractive optical power region

Номер: US20130114128A1
Автор: Joshua Haddock, Mark Mattison-Shupnick, Roger Clarke, Ronald D. Blum, William Kokonaski
Принадлежит: PixelOptics Inc

A lens system is presented having a diffractive optical power region. The diffractive optical power region has a plurality of concentric surface relief diffractive structures. A greater portion of light incident on a diffractive structure near the center point contributes to the optical power than light incident on a diffractive structure peripherally spaced therefrom.

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Номер записи: 23
09-05-2013 дата публикации

Adjustable optical lens

Номер: US20130114148A1
Автор: Chauncey Graetzel, Manuel Aschwanden, Pit Gebbers, Thomas Kem
Принадлежит: Optotune AG

The disclosure provides an adjustable optical lens comprising a membrane, a support for the membrane, a fluid between the membrane and the support, an actuator for deforming the membrane, and a rigid ring connected to the membrane for moving with the membrane for ensuring that a section of the membrane surrounded by the rigid ring has a defined circumference.

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Номер записи: 24
23-05-2013 дата публикации

OPTICAL ELEMENT, OPTICAL ELEMENT ARRAY, DISPLAY DEVICE, AND ELECTRONIC APPARATUS

Номер: US20130128337A1
Автор: Takahashi Kenichi, Takanashi Hidehiko
Принадлежит: SONY CORPORATION

An optical element includes: a first electrode and a second electrode that are arranged opposite each other, in which the first electrode allows part of incident light to pass therethrough and reflects another part of the incident light, and the second electrode reflects light that has passed through the first electrode; a first dielectric film and a second dielectric film covering the first electrode and the second electrode, respectively; and a first medium and a second medium each interposed and sealed in a space containing a cavity portion between the first dielectric film and the second dielectric film, in which the first medium and the second medium have refractive indices different from one another, and one of the first medium and the second medium is a polar liquid. 1. An optical element , comprising:a first electrode and a second electrode that are arranged opposite each other, the first electrode allowing part of incident light to pass therethrough and reflecting another part of the incident light, and the second electrode reflecting light that has passed through the first electrode;a first dielectric film and a second dielectric film covering the first electrode and the second electrode, respectively; anda first medium and a second medium each interposed and sealed in a space containing a cavity portion between the first dielectric film and the second dielectric film, the first medium and the second medium having refractive indices different from one another, and one of the first medium and the second medium being a polar liquid.2. The optical element according to claim 1 , wherein the other of the first medium and the second medium is air or a non-polar liquid.3. The optical element according to claim 1 , wherein a reservoir is provided in part of a periphery of the second electrode claim 1 , the reservoir storing one of the first medium and the second medium.4. The optical element according to claim 1 , wherein light with a specific wavelength is ...

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Номер записи: 25
23-05-2013 дата публикации

FLUIDIC VARIABLE FOCAL LENGTH OPTICAL LENS AND METHOD FOR MANUFACTURING THE SAME

Номер: US20130128368A1
Автор: BORNHORST Kirstin, COSTACHE Florenta, SCHENK Harald, SCHIRRMANN Christian
Принадлежит: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

A fluidic variable focal length optical lens has a sealed housing having a first fluidic chamber filled with a first fluidic medium and a second fluidic chamber filled with a second fluidic medium, the first and the second fluidic chamber being separated from each other by an elastic membrane, wherein the first and the second fluidic medium have different refractive indices, and a deformator configured to deform the membrane laterally within a pump zone, thereby laterally displacing the first fluidic medium from the pump zone to a lens zone and the second fluidic medium from the lens zone to the pump zone, so that the membrane also deforms in the lens zone and changes a focal length of the lens zone along a normal direction. 1. A fluidic variable focal length optical lens , comprising:a sealed housing comprising a first fluidic chamber filled with a first fluidic medium and a second fluidic chamber filled with a second fluidic medium, the first and the second fluidic chamber being separated from each other by an elastic membrane, wherein the first and the second fluidic medium comprise different refractive indices;a deformator configured to deform the elastic membrane laterally within a pump zone, thereby laterally displacing the first fluidic medium from the pump zone to a lens zone and the second fluidic medium from the lens zone to the pump zone along a lateral direction, wherein the lateral direction is parallel to a longer side of the sealed housing, so that the elastic membrane also deforms in the lens zone and changes a focal length of the lens zone along a normal direction;wherein the pump zone is formed by a first portion of the first fluidic chamber and the second fluidic chamber, where the first and the second fluidic medium are separated from each other by a combination of the elastic membrane and the deformator;wherein the lens zone is formed by a second portion of the first fluidic chamber and the second fluidic chamber, where the first and the second ...

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Номер записи: 26
30-05-2013 дата публикации

Display assemblies and methods of fabrication thereof

Номер: US20130135318A1
Автор: Brian William Arbuckle, Ion Bita, Kollengode Subramanian Narayanan, Suryaprakash Ganti
Принадлежит: Qualcomm Mems Technologies Inc

This disclosure provides systems, methods and apparatus for display assemblies. In one aspect, a display assembly may include a first panel, a second panel, and a third panel. The second panel may be spaced apart from the first panel, and the third panel may be spaced apart from the second panel. A first perimeter frame may join the first panel and the second panel, with the first perimeter frame defining a first cavity in between the first panel and the second panel. The first cavity may be substantially filled with a first liquid. A second perimeter frame may join the second panel and the third panel, with the second perimeter frame defining a second cavity in between the second panel and the third panel. The second cavity may be substantially filled with a second liquid.

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Номер записи: 27
30-05-2013 дата публикации

SPECTACLE LENS AND METHOD FOR MAKING THE SAME

Номер: US20130135579A1
Автор: Kratzer Timo, Krug Herbert
Принадлежит: CARL ZEISS VISION INTERNATIONAL GMBH

The invention is directed to a method for making a spectacle lens for a non-presbyopic person wherein the spectacle lens is a ready-to-wear lens and has at least one zone having an optical effect to reduce vision stress. In the method, at least one of the following is provided: the contour of the ready-to-wear spectacle lens and one or several visual points whereat the person looks through the ready-to-wear spectacle lens for one or several visual tasks in the near range. This method step is followed by setting at least one of: a design reference point of the zone, the extent of the zone, the optical effect within the zone based on the provided contour, and the visual points. The spectacle lens is then made with this zone. 1. A method for making a spectacle lens for a non-presbyopic person wherein the spectacle lens is a ready-to-wear spectacle lens and has at least one zone having an optical effect provided to reduce vision stress , the method comprising the steps of:providing at least one of the contour of said ready-to-wear spectacle lens and one or several visual points whereat the person looks through said ready-to-wear spectacle lens for one or several tasks in the near range;setting at least one of a design reference point of the zone, the extent of the zone, the optical effect within the zone based on the provided contour, and the visual points; and,making the spectacle lens with said zone.2. The method of claim 1 , wherein said optical effect for the reduction of vision stress includes a prismatic effect; and claim 1 , wherein at least one of the design reference points is the prism design reference point for the prismatic effect for reducing vision stress and the position of the prism design reference point and/or the extent of the prismatic effect and/or the intensity of the prismatic effect is individually set based on the contour and/or the visual points.3. The method of claim 2 , wherein the optical effect provided for reducing vision stress includes a ...

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Номер записи: 28
06-06-2013 дата публикации

REFRACTIVE EYEWEAR

Номер: US20130141690A1
Автор: Crosby David Nicholas, Reading Owen Fletcher, Silver Joshua, Storey Gregor Allan, Taylor Richard Edward
Принадлежит:

An optical apparatus () for wearing by a human user comprises one or more variable power lenses (), means () for adjusting the power of the variable power lens (), means () for capturing data representative of said adjustments, and means () for recording or transmitting the captured data. 1. An optical apparatus for wearing by a human user comprising one or more variable power lenses , an arrangement for adjusting the power of the variable power lens , an arrangement for capturing data representative of said adjustments , and a data recorder or transmitter for recording or transmitting the captured data.2. An optical apparatus as claimed in claim 1 , wherein the arrangement for adjusting the power of the variable power lens comprises an arrangement for allowing user adjustment of the power of the variable power lens.3. An optical apparatus as claimed in claim 1 , wherein separate variable power lenses are provided for each eye.4. An optical apparatus as claimed in claim 3 , comprising an arrangement for altering the distance between the optical centres of the lenses.5. An optical apparatus as claimed in claim 1 , wherein the or each variable power lens comprises a fluid filled lens claim 1 , an Alvarez-based lens claim 1 , an electroactive lens claim 1 , a diffractive lens or a diffractive Alvarez lens.6. An optical apparatus as claimed in claim 1 , wherein the or each variable power lens comprises one or more fixed power prescription elements.7. An optical apparatus as claimed in claim 6 , wherein the one or more fixed power prescriptions element comprises one or more components from a spherical correction claim 6 , a cylinder and axis correction or any other higher order aberration correction.8. An optical apparatus as claimed in claim 1 , wherein the arrangement for adjusting the power of the variable power lens is mechanically operated by a user.9. An optical apparatus as claimed in claim 1 , wherein the arrangement for adjusting the power of the variable power ...

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Номер записи: 29
06-06-2013 дата публикации

PROGRESSIVE READING AND INTERMEDIATE DISTANCE LENS DEFINED BY EMPLOYMENT OF A ZERNIKE EXPANSION

Номер: US20130141691A1
Автор: Lytle John D.
Принадлежит: VISIONWARE LLC

There is provided a lens that includes a corridor having a width greater than or equal to about 6 millimeters. The lens has astigmatism less than or equal to about 0.5 diopter within the corridor. There is also provided an item of eyewear that includes such a lens, and a method for representing a surface of an ophthalmic lens. 1. An item of eyewear , comprising:a lens holder; anda pair of progressive addition lenses situated in said lens holder to satisfy a span of interpupillary distances of at least 6 millimeters.2. A method comprising:representing a surface for each of a pair of ophthalmic lenses by way of a Zernike expansion; andsituating said pair of lenses in a lens holder to satisfy a span of interpupillary distances of at least 6 millimeters.3. The method of claim 2 , wherein said ophthalmic lenses are progressive addition lenses.4. The method of claim 3 , wherein said ophthalmic lenses are aspheric lenses.5. A method comprising:designing an ophthalmic lens, (a) a predetermined boundary shape of said ophthalmic lens for ultimate use, and', '(b) a predetermined boundary size of said ophthalmic lens for ultimate use., 'wherein said designing employs, as design parameters,'}6. The method of claim 5 , wherein said ophthalmic lens is a progressive addition lens.7. The method of claim 5 , wherein said ophthalmic lens is an aspheric lens.8. The method of claim 5 , wherein said designing comprises representing a surface of said ophthalmic lens by way of a Zernike expansion.9. The method of claim 8 , wherein said Zernike expansion employs at least ten terms.10. The method of claim 5 , wherein said designing employs claim 5 , as a design parameter claim 5 , a pupil size of a wearer for use of said ophthalmic lens.11. The method of claim 5 , further comprising manufacturing said ophthalmic lens.12. The method of claim 11 , further comprising situating said ophthalmic lens in a lens holder.13. The method of claim 5 , wherein said ophthalmic lens is one of two such ...

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Номер записи: 30
06-06-2013 дата публикации

ELECTROWETTING DISPLAY PANEL AND THE MANUFACTURING METHOD THEREOF

Номер: US20130141775A1
Автор: CAO Zhanfeng, Dai Tianming, XUE Jianshe, YAO Qi, Zhang Feng
Принадлежит: BOE Technology Group Co., Ltd.

Embodiments of the present disclosure provide an electrowetting display panel and the manufacturing method thereof The electrowetting display panel comprises: a first glass substrate; a second glass substrate provided opposite to the first glass substrate; a cavity provided between the first glass substrate and the second glass substrate; a colored conductive liquid filled into the cavity; and a reflecting conductive element provided on the surface of the first glass substrate facing away from the second glass substrate, and corresponding to the cavity, wherein the reflecting conductive element is used for controlling the light transmissivity of the colored conductive liquid within the cavity according to the voltage applied to the reflecting conductive element and reflecting the light passing through the colored conductive liquid toward the second glass substrate. 1. An electrowetting display panel comprising:a first glass substrate;a second glass substrate provided opposite to the first glass substrate;a cavity provided between the first glass substrate and the second glass substrate;a colored conductive liquid filled into the cavity; anda reflecting conductive element provided on the surface of the first glass substrate facing away from the second glass substrate, and corresponding to the cavity, wherein the reflecting conductive element is used for controlling the light transmissivity of the colored conductive liquid within the cavity according to the voltage applied to the reflecting conductive element and reflecting the light passing through the colored conductive liquid toward the second glass substrate.2. The electrowetting display panel according to claim 1 , wherein the colored conductive liquid is a liquid mixture of a transparent polar liquid and a colored non-polar liquid.3. The electrowetting display panel according to claim 2 , further comprising a hydrophobic layer located between the colored conductive liquid and the first glass substrate.4. The ...

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Номер записи: 31
06-06-2013 дата публикации

TUNABLE ACOUSTIC GRADIENT INDEX OF REFRACTION LENS AND SYSTEM

Номер: US20130141782A1
Автор: Arnold Craig B., Theriault Christian
Принадлежит:

A microscope, comprising a stage onto which is placed an item, a lens having a tunable acoustic gradient index of refraction (TAG lens) sufficiently proximate to said stage to magnify an image of the item, a viewing point for providing for viewing of the magnified image, and a pulsed illuminator capable of illuminating the stage and synchronously pulsed with an operating frequency of the TAG lens. 1. A microscope , comprising:a stage onto which is placed an item;a tunable acoustic gradient index of refraction (TAG) lens sufficiently proximate to said stage to magnify an image of the item;a viewing point for providing for viewing of the magnified image; andan pulsed illuminator capable of illuminating said stage and synchronously pulsed with an operating frequency of said TAG lens.2. A tunable acoustic gradient index of refraction lens , comprising:a casing having a cavity disposed therein for containing a refractive fluid capable of changing its refractive index in response to application of an acoustic wave;at least one compressible component disposed in the cavity for modifying the change in the refractive index of the refractive fluid.3. A device for providing modified performance responsive to pressure changes , comprising:a closed, sealed cavity;a fluid in said cavity for providing the modified performance responsive to the pressure changes; anda relief bubble comprised of air, wherein said relief bubble at least buffers the pressure changes in relation to the closed, sealed cavity. The present invention relates generally to a tunable acoustic gradient index of refraction (TAG) lens, and more particularly, but not exclusively, to a TAG lens that is configured to permit dynamic focusing and imaging.When it comes to shaping the intensity patterns, wavefronts of light, or position of an image plane or focus, fixed lenses are convenient, but often the need for frequent reshaping requires adaptive optical elements. Nonetheless, people typically settle for whatever ...

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Номер записи: 32
13-06-2013 дата публикации

Progressive multifocal ophthalmic lens

Номер: US20130148078A1
Автор: Bernard Bourdoncle, Cyril Guilloux, Damien Paille, Laurent Calixte, Marie-Anne Berthezene, Soazic Mousset
Принадлежит: Essilor International Compagnie Generale dOptique SA

The invention relates to a lens having certain properties, including: a circle grouping together all the points of the lens having the same abscissa and the same ordinate as points located on a circle in the reference plane, having a diameter of 35 millimetres and centred on a point located 8.5 millimetres below the mounting cross and horizontally offset on the nasal side by 1.25 millimetres; a disc grouping together all the points of the lens having the same abscissa and the same ordinate as points located inside said circle; a progression length of less than 14.5 millimetres; a ratio difference between the value of the cylinder and the surface addition of less than 0.2 as an absolute value for every pair of points of the lens that are symmetrical relative to the mounting cross and have the same ordinate as the mounting cross, and an abscissa with an absolute value of less than 20 millimetres; a first ratio between: the maximum cylinder value for all the points of the circle; and the surface addition of less than 0.7; and a second ratio between: the maximum cylinder value for all the points of the disc; and the surface addition of no more than 1.05. The invention is suitable for improving the comfort of the wearer.

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Номер записи: 33
27-06-2013 дата публикации

DISPLAY ELEMENT AND ELECTRICAL APPARATUS USING SAME

Номер: US20130163068A1
Автор: Matsuoka Toshiki, Teranishi Tomoko, Tomotoshi Takuma, Ueki Shun
Принадлежит: SHARP KABUSHIKI KAISHA

A display element () includes an upper substrate (first substrate) (), a lower substrate (second substrate) (), a polar liquid () that is movably sealed on an effective display region (P) side or a non-effective display region (P) side inside a display space (S), a rib () that is provided on the lower substrate () so as to hermetically compartment the inside of the display space (S) according to each of a plurality of pixel regions (P), and oil (insulating fluid) () that is movably sealed inside the display space (S) for each pixel region (P) and does not mix with the polar liquid (). In addition, when the polar liquid () is moved inside the display space (S) for each pixel region (P), signal electrodes () are provided on the lower substrate () side so that the flow path of the oil () inside the display space (S) becomes large. 1. A display element configured to include a first substrate provided on a display surface side , a second substrate provided on a non-display surface side of the first substrate so as to form a predetermined display space between the first substrate , an effective display region and a non-effective display region set for the display space , and a polar liquid that is movably sealed on the effective display region side or the non-effective display region side inside the display space , and to be able to change a display color on the display surface side by causing the polar liquid to move , comprising:a plurality of signal electrodes that is disposed inside the display space and provided along a predetermined arrangement direction so as to come into contact with the polar liquid;a plurality of reference electrodes that is provided on either side of the first substrate or the second substrate so as to be disposed on one side of the effective display region and the non-effective display region while being electrically insulated from the polar liquid and so as to intersect with the plurality of signal electrodes;a plurality of scanning ...

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Номер записи: 34
04-07-2013 дата публикации

ELECTROWETTING DISPLAY DEVICE HAVING BANKS OF DIFFERENT HYDROPHILICITIES AND METHOD FOR MANUFACTURING THE SAME

Номер: US20130170008A1
Автор: Hua Chang-Ku, Kim Woo-Song, Park Mun-Soo, Park Soo-Jin, SHIN Sang-Min
Принадлежит: Samsung Display Co., Ltd.

Disclosed is an electrowetting display device including a plurality pixels. Each pixel includes a pixel electrode, a hydrophobic layer, a hydrophobic fluid, and a bank adapted to limit the range of movement of the hydrophobic fluid. The bank has a hydrophobic bank surface and a hydrophilic bank surface, which face each other. The hydrophobic fluid is moved from the hydrophilic bank surface towards the hydrophobic bank surface by the application of a voltage to the pixel electrode. 1. An electrowetting display device comprising:a first substrate;a second substrate facing the first substrate; and a pixel electrode disposed on the first substrate;', 'a hydrophobic layer disposed on the pixel electrode;', 'a hydrophobic fluid disposed on the hydrophobic layer;', 'a bank disposed on the hydrophobic layer and surrounding the hydrophobic fluid, the bank comprising first and second bank surfaces that face the hydrophobic fluid, and hydrophilicity of the first bank surface is different from hydrophilicity of the second bank surface; and', 'a hydrophilic fluid disposed on the hydrophobic fluid,', 'wherein the pixel electrode is configured to form an electric field to move the hydrophobic fluid with respect to the first and second bank surfaces., 'pixels formed between the first and second substrates, each pixel comprising2. The electrowetting display device as claimed in claim 1 , wherein:the first and second bank surfaces are disposed on opposing sides of the hydrophobic fluid; andthe first bank surface comprise a hydrophobic portion.3. The electrowetting display device as claimed in claim 2 , wherein the thickness of an edge of the hydrophobic fluid facing the first bank surface is smaller than the thickness of an edge of the hydrophobic fluid facing the second bank surface.4. The electrowetting display device as claimed in claim 3 , wherein claim 3 , when no voltage is applied to the pixel electrode claim 3 , the hydrophobic fluid contacts the first and second bank ...

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Номер записи: 35
11-07-2013 дата публикации

ADAPTIVE OPTICAL DEVICES WITH CONTROLLABLE FOCAL POWER AND ASPHERIC SHAPE

Номер: US20130176628A1
Автор: Batchko Robert G., Robinson Samuel T., Szilagyi Andrei
Принадлежит: Holochip Corporation

A fluidic lens may include an optical surface configured for deflection dominated by bending stress. An adjustable concentric load may be applied to the optical surface to cause a clear aperture region of the optical surface to deflect with generally spherical curvature. Adjusting the concentric load controls the radius of curvature. An adjustable uniformly-distributed load may be applied to the optical surface by fluid pressure that causes the clear aperture region to deflect with an aspheric shape. Adjusting the pressure controls the asphericity of curvature. First and second fluids having similar densities and different refractive indexes may be disposed on either side of a deflectable optical surface to help balance gravitational loading on either side of the optical surface, thereby reducing gravity-associated aberrations. 1. A fluidic optical device , comprising:a fluidic lens having a compartment comprising;a first optical surface;a second optical surface;wherein one or more of the optical surfaces are configured for deflection affected by bending stress;a first support member;a second support member;wherein the first and second support member are configured to apply a concentrated concentric load to one or more of the optical surfaces;wherein the compartment is filled with a fluid;wherein the application of a load to one or more of the support members results in the application of the concentrated concentric load to one or more of the optical surfaces thereby resulting in a bending deflection of one or more of the optical surfaces and thereby changing one or more optical properties of the fluidic optical device.2. A fluidic optical device , comprising:a fluidic lens having a compartment comprising;a first optical surface;a second optical surface;wherein one or more of the optical surfaces are configured for deflection in response to an applied load;a first support member;a second support member;wherein the first and second support member are configured to ...

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Номер записи: 36
18-07-2013 дата публикации

MULTI-FOCAL OPTICAL LENSES

Номер: US20130182215A1
Автор: Tung Hsiao-Ching
Принадлежит:

A multi-focal lens having a center optical zone for creating a first focal point within 2° of the optical axis and a peripheral optical zone located adjacent the center optical zone for creating a second focal point from 2° to 10° of the optical axis, the peripheral optical zone having a correction of at least 2 diopters more than the center optical zone. 2. The lens of claim 1 , wherein the curvature of the front surface of the central optical zone is steeper than the curvature of the front surface of the peripheral optical zone by at least 2 diopters.3. The lens of claim 2 , wherein the curvature of the front surface of the peripheral optical zone becomes progressively steeper radially outwardly from an inner radial zone to an outer radial zone claim 2 , with the curvature of the front surface of the inner radial zone being at least 4 diopters steeper than the curvature of the front surface of the center optical zone claim 2 , and the curvature of the front surface of the outer radial zone being up to 10 diopters steeper than the curvature of the front surface of the center optical zone.4. The lens of claim 1 , wherein the curvature of the front surface of the center optical zone merges with the curvature of the front surface of the peripheral optical zone with an aspheric or reverse-aspheric curve having a predetermined e-value.5. The lens of claim 4 , wherein the curvature of the front surface of the center optical zone merges with the curvature of the front surface of the peripheral optical zone with an aspheric or reverse-aspheric curve having a e-value between −0.7 and −3.0 e claim 4 , with the curvature becoming progressively steeper radially outwardly.6. The lens of claim 1 , wherein the lens is selected from the group consisting of a spectacle lens claim 1 , a contact lens claim 1 , and an intraocular lens.7. The lens of claim 6 , wherein the lens is a contact lens.8. The lens of claim 7 , wherein the center optical zone has a diameter of between 0.4 mm ...

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Номер записи: 37
18-07-2013 дата публикации

TREATING OCULAR REFRACTIVE ERROR

Номер: US20130182216A1
Автор: Ho Arthur, Holden Brien Anthony, III Earl Leo, Sankaridurg Padmaja Rajagopal, Smith
Принадлежит:

A lens for an eye that includes a zone with a first power profile for images received by the retina on the fovea, a zone with a second power profile for images received by the peripheral retina on the nasal side and a zone with a third power profile for images received by the peripheral retina on the temporal side. The first power profile is selected to provide clear or acceptable vision and the second and third power profiles are selected to affect the peripheral image position. 125.-. (canceled)26. A lens for an eye , the lens comprising a zone with a first power profile for images received by the retina on the fovea of the eye , a zone with a second power profile for images received by the peripheral retina on a nasal side of the eye , a zone with a third power profile , different from at least the second power profile , for images received by the peripheral retina on a temporal side of the eye , and a lens stabilizing mechanism for orienting the lens on the eye , wherein the first power profile is selected to provide clear or acceptable vision and the second and third power profiles are selected to affect a progression of refractive error.27. The lens of claim 26 , wherein the lens is one of a contact lens and a spectacle lens.28. The lens of claim 26 , wherein the lens comprises a corneal implant or orthokeratology lens and wherein the first to third power profiles are effected as a reshaping of the cornea of the eye.29. A lens for affecting a progression of myopia in an eye claim 26 , the lens comprising a nasal optic zone and a temporal optic zone for refracting light to be received by the peripheral retina of the eye so as to be focused on or in front of the retina claim 26 , wherein the nasal optic zone and the temporal optic zone have different refractive powers.30. The lens of further comprising a central optic zone with a refractive power to correct on-axis vision of the eye.31. The lens of wherein the nasal optic zone has an increased power relative to ...

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Номер записи: 38
18-07-2013 дата публикации

ELECTROWETTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME

Номер: US20130182309A1
Автор: CHA Taewoon, Cho Hyeon Gu, Kim Donghwan, KIM Myunghwan, Kim Sangil, LEE Hyoungwook, Lee Jeongho, WOO YONG WOO YONG
Принадлежит: Samsung Display Co., Ltd.

An electrowetting display apparatus includes a first base substrate, a second base substrate which faces the first base substrate, a first electrode on the first base substrate, and a second electrode on the second base substrate, where the second electrode faces the first electrode. A barrier wall is on the first electrode, where the barrier wall defines a storage area. A surface of the first electrode and the barrier wall is overlapped by a barrier layer. In addition, a water-repellent layer is on the barrier layer which is in the storage area. First and second fluids are in the storage area, the first fluid is separate from the second fluid, and the first fluid or the second fluid has a polarity. 1. An electrowetting display apparatus comprising:a first base substrate;a second base substrate which faces the first base substrate;a first electrode on the first base substrate;a barrier wall on the first base substrate, wherein the barrier wall defines a storage area;a barrier layer which overlaps a surface of the first electrode and of the barrier wall;a water-repellent layer on the barrier layer which is in the storage area; andfirst and second fluids in the storage area, wherein the first fluid is separate from the second fluid, and the first fluid or the second fluid has a polarity.2. The electrowetting display apparatus of claim 1 , wherein the barrier layer comprises a hydrophilic insulating material.3. The electrowetting display apparatus of claim 2 , wherein the barrier layer comprises silicon nitride or silicon oxide.4. The electrowetting display apparatus of claim 3 , wherein the barrier layer has a thickness of about 0.1 nanometer to about 1 micrometer.5. The electrowetting display apparatus of claim 1 , wherein the water-repellent layer comprises a hydrophobic material or a hydrophobic surface.6. The electrowetting display apparatus of claim 1 , whereinthe first fluid comprises a hydrophobic material and has a red, green, or blue color, andthe second ...

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Номер записи: 39
18-07-2013 дата публикации

DISPLAY DEVICE

Номер: US20130182310A1
Автор: Dijk Roy Van, FEENSTRA Bokke Johannes, Giraldo Andrea, Hayes Robert A., SCHRAM Ivar, Slack Anthony John
Принадлежит: Samsung LCD Netherlands R & D Center B.V.

A display device comprising picture elements, which are constituted by electrowetting elements having at least one first fluid and a second fluid immiscible with each other within a space between a first support plate and a second support plate, the second fluid being electro-conductive or polar. The first fluid in each element is at the side of the first support plate confined by element walls, and the second fluid is shared by a plurality of picture elements, characterised by a preventer for preventing first fluid portions from being expelled from its confinement when forces other than electrowetting forces are exerted on this fluid. 1. A display device comprising picture elements , which are constituted by electrowetting elements having at least one first fluid and a second fluid immiscible with each other within a space between a first support plate and a second support plate , the second fluid being electro-conductive or polar , whereby the first fluid in each element is at the side of the first support plate confined by element walls , and the second fluid is shared by a plurality of picture elements , characterised by a preventer for preventing first fluid portions from being expelled from its confinement when forces other than electrowetting forces are exerted on this fluid.2. A display device as claimed in claim 1 , characterised in that the preventer is constituted by a component arranged at the inner side of the second support plate claim 1 , which component prevents the first fluid from attaching to this plate.3. A display device as claimed in claim 2 , characterised in that the component is constituted by an array of protruding elements having a hydrophilic surface and having their base on the second support plate and a height smaller than the distance between the first support plate and the second support plate.4. A display device as claimed in claim 3 , characterised in that the array is an irregular pattern.5. A display device as claimed in claim 3 , ...

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Номер записи: 40
25-07-2013 дата публикации

INK CONTAINING HETEROCYCLIC AZO DYE, AND DYE FOR USE IN SAID INK

Номер: US20130188238A1
Автор: Ichinosawa Shoko, Ishida Mio, SHIGA Yasushi, TAKEDA Utako
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

The invention relates to an ink which comprises: a low-polarity solvent having a relative permittivity of 3 or less at a measuring frequency of 1 kHz; and a specific heterocyclic azo dye. 2. The ink according to claim 1 , wherein the low-polarity solvent comprises at least one member selected from the group consisting of hydrocarbon solvents claim 1 , silicone oils claim 1 , and fluorocarbon solvents.3. The ink according to claim 1 , wherein the heterocyclic azo dye is a dye in which claim 1 , when dissolving the dye in n-decane claim 1 , an absorption-maximum wavelength in the wavelength range of 350-750 nm is in the range of 450-600 nm claim 1 , and the product of a molar extinction coefficient ε (Lmolcm) at the absorption-maximum wavelength and a concentration C (molL) of saturated solution in the solvent at room temperature (25° C.) claim 1 , εC claim 1 , has a value of 500 cmor larger.4. The ink according to claim 1 , which comprises at least one of a pyrazole dye and an alkylamine-substituted anthraquinone dye.6. The ink according to claim 1 , which is for use in a display or optical shutter.7. A display which comprises a display part containing the ink according to claim 1 , in which an image is displayed by controlling voltage application to the display part.8. The display according to claim 7 , wherein the display part contains electrophoretic particles or an aqueous medium.9. The display according to claim 7 , wherein an image is displayed by changing the coloration by means of voltage application.10. The display according to claim 7 , wherein an image is displayed by an electrowetting system or an electrophoretic system.11. An electronic paper which comprises the display according to . The present invention relates to an ink which contains a low-polarity solvent and a heterocyclic azo dye and to an azo dye suitable for use in the ink. More particularly, the invention relates to an ink which contains a low-polarity solvent and a heterocyclic azo dye having ...

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Номер записи: 41
01-08-2013 дата публикации

MICRO-LENS CAPABLE OF CHANGING FOCAL LENGTH, MICRO-LENS ARRAY INCLUDING THE SAME, 3D DISPLAY INCLUDING MICRO-LENS ARRAY AND METHOD OF OPERATING 3D DISPLAY

Номер: US20130194323A1
Автор: Bae Jung-mok, CHOI Kyu-hwan, Choi Yoon-sun, Kim Eok-su, Kim Yun-Hee, SONG Hoon, WON Kang-hee
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided is a micro-lens capable of changing a focal length. The micro-lens includes a plurality of electrodes, and an electrowetting liquid layer that is separable from the electrodes and that has a focal length that is controlled by a voltage applied to the electrodes. 1. A micro-lens comprising:a plurality of electrodes; andan electrowetting liquid layer that is separable from the electrodes and that comprises a focal length that is controlled by a voltage applied to the electrodes,wherein the electrodes are disposed around the electrowetting liquid layer.2. The micro-lens of claim 1 , further comprising an insulating layer and a hydrophobic film sequentially formed between the electrodes and the electrowetting liquid layer.3. The micro-lens of claim 2 , further comprising an upper electrode and a glass substrate that are sequentially formed on the electrowetting liquid layer and the electrodes claim 2 , wherein a portion of the electrowetting liquid layer extends between the upper electrode and the hydrophobic film.4. The micro-lens of claim 1 , wherein the electrowetting liquid layer comprises:a non-polar first material;a polar second material; andan electrolyte that is included in at least one of the non-polar first material and the polar second material.5. The micro-lens of claim 2 , wherein the insulating layer comprises a SiOlayer or a SiN layer.6. The micro-lens of claim 2 , wherein the insulating layer comprises a Cytop layer claim 2 , an HfOlayer claim 2 , and a Mo layer sequentially stacked in the stated order.7. The micro-lens of claim 5 , wherein the hydrophobic film comprises a Parylene C film claim 5 , a Cytop film claim 5 , or a Taflon film.8. The micro-lens of claim 4 , wherein the polarized second material comprises deionized (DI) water.9. The micro-lens of claim 4 , wherein the non-polarized material comprises oil.10. The micro-lens of claim 2 , wherein the electrolyte comprises NaCl and SDS.11. The micro-lens of claim 4 , wherein the ...

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Номер записи: 42
01-08-2013 дата публикации

Projection optical system, exposure apparatus, and exposure method

Номер: US20130194560A1
Автор: Hiroyuki Nagasaka, Takaya Okada, Yasuhiro Omura
Принадлежит: Nikon Corp

An immersion projection optical system having, for example, a catadioptric and off-axis structure, reduces the portion of an image space filled with liquid (immersion liquid). The projection optical system, which projects a reduced image of a first plane onto a second plane through the liquid, includes a refractive optical element (Lp) arranged nearest to the second plane. The refractive optical element includes a light emitting surface (Lpb) shaped to be substantially symmetric with respect to two axial directions (XY-axes) perpendicular to each other on the second plane. The light emitting surface has a central axis (Lpba) that substantially coincides with a central axis ( 40 a ) of a circle ( 40 ) corresponding to a circumference of a light entering surface (Lpa) of the refractive optical element. The central axis of the light emitting surface is decentered in one of the two axial directions (Y-axis) from an optical axis (AX).

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Номер записи: 43
08-08-2013 дата публикации

Camera for recording aerial images from aircraft

Номер: US20130201374A1
Автор: Dirk Döring, Holger Stoldt, Jörn Hildebrandt, Martin Timm, Martin Welzenbach
Принадлежит: HEXAGON TECHNOLOGY CENTER GMBH

A camera, more particularly for recording aerial images from aircraft, comprising a lens and at least one digital, areal image sensor fixed on a carrier element and having a predetermined pixel size, which image sensor has a curvature, more particularly caused by the fixing on the carrier element within a specific tolerance range. The lens at least partly brings about optical compensation of the curvature of the digital areal image sensor.

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Номер записи: 44
08-08-2013 дата публикации

LIQUID LENS AND APPARATUS INCLUDING THE SAME

Номер: US20130201384A1
Автор: Tsuji Minoru
Принадлежит: CANON KABUSHIKI KAISHA

A decrease in the spectral transmittance of a liquid lens due to yellowing of an iodide aqueous solution used as an electrolytic solution is inhibited. A liquid lens includes a liquid container, an electrolytic solution contained in the container and containing iodide ions and a water-soluble antioxidant that inhibits oxidation of the iodide ions, a nonelectrolytic solution contained in the container and forming an interface with the electrolytic solution, and an electrode configured to apply a voltage to the electrolytic solution. A voltage is applied across the electrolytic solution and the electrode to change the curvature of the interface. 1. A liquid lens comprising:a liquid container;an electrolytic solution contained in the container, the electrolytic solution containing iodide ions and a water-soluble antioxidant that inhibits oxidation of the iodide ions;a nonelectrolytic solution contained in the container, the nonelectrolytic solution forming an interface with the electrolytic solution; andan electrode configured to apply a voltage to the electrolytic solution;wherein a voltage is applied across the electrolytic solution and the electrode to change the curvature of the interface.2. The liquid lens according to claim 1 , wherein the antioxidant has a standard redox potential of 0.53 V or less.3. The liquid lens according to claim 2 , wherein the antioxidant has a standard redox potential of 0.36 V or less.4. The liquid lens according to claim 3 , wherein the mass concentration of the antioxidant in the electrolytic solution is 0.0025% or more.5. The liquid lens according to claim 4 , wherein the mass concentration of the antioxidant in the electrolytic solution is 0.003% or more.6. The liquid lens according to claim 4 , wherein the iodide ions are produced by adding an iodide to a solvent used for the electrolytic solution claim 4 , and the mass concentration of the iodide in the electrolytic solution is 50% or less.7. The liquid lens according to claim 1 ...

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Номер записи: 45
08-08-2013 дата публикации

VARIFOCAL LENS

Номер: US20130201437A1
Автор: CHA Seung-nam, CHOI Byoung-lyong, KIM Sun-il, LEE Eun-kyung
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A varifocal lens including a first liquid crystal layer; a first electrode portion disposed below the first liquid crystal layer and having a flat shape; a first non-uniform electric field generator which generates a non-uniform electric field in the first liquid crystal layer together with the first electrode portion, and the first non-uniform electric field generator including a second electrode portion having a flat shape. 1. A varifocal lens comprising:a first liquid crystal layer;a first electrode portion disposed below the first liquid crystal layer and having a flat shape;a first non-uniform electric field generator which generates a non-uniform electric field in the first liquid crystal layer together with the first electrode portion, the first non-uniform electric field generator comprising a second electrode portion having a flat shape.2. The varifocal lens of claim 1 , wherein the first non-uniform electric field generator further comprises a first resistance layer disposed between the second electrode portion and the first liquid crystal layer.3. The varifocal lens of claim 2 , wherein the first resistance layer is formed of a semiconductor claim 2 , an insulator claim 2 , or a conductive polymer.4. The varifocal lens of claim 2 , wherein the first resistance layer is configured to have an inhomogeneous resistivity.5. The varifocal lens of claim 4 , wherein the first electrode portion is shaped so as to face an entire lower surface of the first liquid crystal layer claim 4 , andwherein the second electrode portion is shaped so as to face an entire upper surface of the first liquid crystal layer.6. The varifocal lens of claim 4 , wherein at least one of the first electrode portion and the second electrode portion comprises a structure in which a plurality of electrodes are spaced apart from each other and are arranged to have an overall flat structure.7. The varifocal lens of claim 6 , wherein at least one of the first electrode portion and the second ...

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Номер записи: 46
08-08-2013 дата публикации

Optical element with sub elements and an addressable mask

Номер: US20130201543A1
Автор: Roger Clarke
Принадлежит: Technology Partnership PLC

A light modulation device comprising an optical element and at least one addressable mask disposed adjacent to the optical element. The optical element comprises at least two sub-elements, each of the at least two sub-elements having at least one optical characteristic wherein at least one optical characteristic of one sub-element is discrete from at least one optical characteristic of another sub-element. The mask comprises at least two regions corresponding to the at least two sub-elements, each of the at least two regions being individually addressable to enable its corresponding sub-element to be light transmitting.

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Номер записи: 47
08-08-2013 дата публикации

IMAGE PICKUP APPARATUS ELECTRONIC DEVICE AND IMAGE ABERRATION CONTROL METHOD

Номер: US20130201569A1
Автор: Hayashi Yusuke, OHARA Naoto, SUGITA Tomoya
Принадлежит: KYOCERA CORPORATION

An optical system comprising an aberration control optical system is disclosed. An aberration control optical system is operable to produce an image aberration, and an aperture stop is operable to limit a light beam passing through the aberration control optical system. An image pickup device is operable to capture an object image passing through the aberration control optical system, and the aberration control optical system provides inflection points within a diameter of the aperture stop to obtain a depth extending effect. 1. An image pickup apparatus comprising: an aberration control optical system operable to produce aberration;', 'an aberration control section operable to extend a depth of a field;', 'an aperture stop operable to limit a light beam passing through the optical system; and', 'an image pickup device operable to capture an object image passing through the optical system,', 'wherein the aberration control optical system has an aberration curve comprising a plurality of inflection points on the aberration curve and within an aperture diameter of the aperture stop to obtain a depth extending effect., 'an optical system comprising2. The image pickup apparatus according to claim 1 , wherein an MTF for defocusing of the optical system has a plurality of peaks in a principal-image-plane shift area at an arbitrary frequency.3. The image pickup apparatus according to claim 1 , wherein the aberration curve comprises a spherical aberration curve.4. The image pickup apparatus according to claim 1 , wherein the aberration control section is located adjacent to the aperture stop.5. The image pickup apparatus according to claim 1 , wherein the aperture diameter of the aperture stop is variable claim 1 , and the aperture stop has a depth extending function that is independent of the aperture diameter.6. The image pickup apparatus according to claim 3 , wherein the aberration control section comprises at least three inflection points in the spherical aberration ...

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Номер записи: 48
15-08-2013 дата публикации

ELECTRO-WETTING DISPLAY DEVICE

Номер: US20130208336A1
Автор: Heikenfeld Jason, Yang Syuan-Ling
Принадлежит: AU OPTRONICS CORPORATION

An electro-wetting display device including a backlight module, an opposite substrate, a polar fluid and a non-polar fluid is provided. The backlight module is used to provide a light. The opposite substrate is located above the backlight module. The opposite substrate includes an opposite electrode and a first dielectric layer. The first dielectric layer substantially covers the opposite electrode. The polar fluid is located between the backlight module and the opposite substrate. The non-polar fluid is located between the backlight module and the opposite substrate. 1. An electro-wetting display device comprising:a backlight module for providing a light; an opposite electrode; and', 'a first dielectric layer substantially covering the opposite electrode;', 'a polar fluid located between the backlight module and the opposite substrate; and', 'a non-polar fluid located between the backlight module and the opposite substrate., 'an opposite substrate disposed above the backlight module, the opposite substrate comprising2. The electro-wetting display device according to claim 1 , wherein the backlight module comprises:a light guide plate having a light-incident surface and a light-emitting surface; anda light source adjacent to the light-incident surface of the light guide plate.3. The electro-wetting display device according to claim 1 , wherein a wavelength of the light ranges from about 300 nm to about 430 nm4. The electro-wetting display device according to claim 1 , further comprising an electrode layer located between the backlight module and the polar fluid for providing a voltage to the polar fluid.5. The electro-wetting display device according to claim 4 , further comprising a second dielectric layer located between the polar fluid and the electrode layer.6. The electro-wetting display device according to claim 1 , wherein the opposite electrode is ring-shape or symmetrical shape.7. The electro-wetting display device according to claim 1 , further comprising ...

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Номер записи: 49
15-08-2013 дата публикации

Electrowetting display device and manufacturing method thereof

Номер: US20130208337A1
Автор: Bo Ram Lee, Da Hye Yoon, Dae Jin Park, Hyeon Gu Cho, Joo-Han Bae, Seung-Jin Baek, Taimei Kodaira
Принадлежит: Samsung Display Co Ltd

The present inventive concept relates to an electrowetting display device including a lyophobic colloid material and a polymer resin such as an organic layer or a polyimide (PI), and a lyophobic layer including a supporting layer supporting the lyophobic colloid material and using a photoreactive fluorine-based surfactant for a fluorine-based material to be positioned above and for a hardened photoreactive material layer to be positioned below through exposure in a single step without separately performing a hydrophilic treatment and then a water-repellent treatment, thereby reducing the number of processes, the manufacturing time, and the cost.

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Номер записи: 50
22-08-2013 дата публикации

Electrowetting display device and driving method thereof

Номер: US20130215095A1
Автор: Chang Ku HUA, Mun-Soo Park, Sang Min Shin, So-Hyun Lee, Uk Chul Choi, Woo Song KIM
Принадлежит: Samsung Display Co Ltd

A display device includes a first electrode, a second electrode, a third electrode, a lyophobic layer, a first liquid, and a second liquid, where the lyophobic layer is lyophobic to the second liquid. A method of driving the display device includes: providing a first potential difference between the first electrode and the third electrode to thereby cause the first liquid to begin moving toward the second electrode; providing a second potential difference between the second electrode and the third electrode while reducing the first potential difference to thereby cause the first liquid to move toward the first electrode; and removing the second potential difference to thereby cause the first liquid to slow down in its movement toward the first electrode or to stop in its movement toward the first electrode.

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Номер записи: 51
22-08-2013 дата публикации

METHOD FOR SELECTING PROGRESSIVE OPHTHALMIC LENSES

Номер: US20130215379A1
Автор: Grillon Benoît, Sayag Jean-Philippe
Принадлежит:

The disclosure relates to a method for selecting progressive ophthalmic lenses for a given frame and wearer, the progressive ophthalmic lenses having one area for distance vision and one area for near vision, said given frame having two recesses suitable for receiving a progressive ophthalmic lens, respectively, said two recesses defining a recess midplane. The method includes the following steps: a) fitting said wearer with said given frame; b) determining the position of a first point of intersection between a first direction of the gaze of said wearer in a distance vision posture and said recess midplane; c) determining the position of a second point of intersection between the gaze of said wearer in a near vision posture and said recess midplane; d) assessing the distance between said intersection points; and, e) selecting progressive ophthalmic lenses in which the progression length corresponds to said distance assessed between said intersection points. 1. A method for selecting progressive ophthalmic lenses for a given frame and a given wearer , the progressive ophthalmic lenses exhibiting a far vision zone and a near vision zone spaced apart by a progression length , said given frame exhibiting two recesses able respectively to receive a progressive ophthalmic lens , said two recesses defining a recess mid-plane , characterized in that it comprises the following steps:a) said given wearer is fitted with said given frame;b) the position of a first point of intersection of a first direction of gaze of said wearer in a far vision posture with said recess mid-plane is determined with respect to said frame;c) the position of a second point of intersection of a second direction of gaze of said wearer in a near vision posture with said recess mid-plane is determined with respect to said frame;d) the distance which extends between said points of intersection is evaluated; and,e) progressive ophthalmic lenses whose progression length corresponds to said evaluated ...

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Номер записи: 52
22-08-2013 дата публикации

Electrowetting display device and manufacturing method thereof

Номер: US20130215491A1
Автор: Byung Seok Choi, Ji Eun Lee, Seung-Jin Baek, Wang Su Hong
Принадлежит: Liquavista BV, Samsung LCD Netherlands R&D Center BV

An electrowetting display device includes: a lower substrate, a pixel electrode disposed on the lower substrate, a lower water-repellent layer disposed on the pixel electrode, a plurality of partitions disposed on the lower water-repellent layer and an oil layer disposed on the lower water-repellent layer between the partitions, and wherein the partitions include a side wall having a reverse taper structure.

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Номер записи: 53
22-08-2013 дата публикации

ELECTROWETTING DEVICES ON FLAT AND FLEXIBLE PAPER SUBSTRATES

Номер: US20130215492A1
Автор: KIM Duk Young, Steckl Andrew J.
Принадлежит: University of Cincinnati

Electro wetting devices and methods. The electro wetting device includes a grounded electrode on one side of a paper substrate . A dielectric layer and a hydrophobic film are sequentially layered onto the grounded electrode . The hydrophobic film is configured to impart a contact angle on a polar liquid . A polar liquid is in contact with the hydrophobic film and a voltage source couples the grounded electrode to the polar liquid . When an electric field is applied by the voltage source , the contact angle of the polar liquid decreases. 1. An electrowetting device comprising:a paper substrate;a grounded electrode on one side of the paper substrate;a dielectric layer on the electrode;a hydrophobic film on the dielectric, the hydrophobic film configured to impart a contact angle on a polar liquid;a polar liquid in contact with the hydrophobic film; anda voltage source coupling the grounded electrode with the polar liquid such that when an electric field is applied by the voltage source, the contact angle of the polar liquid decreases.2. The electrowetting device of claim 1 , wherein the grounded electrode is constructed from copper or indium tin oxide with a thickness that ranges from about 100 nm to about 200 nm.3. The electrowetting device of claim 1 , wherein the dielectric layer is constructed from alumina claim 1 , silica claim 1 , or parylene with a thickness that ranges from about 0.5 μm to about 1.0 μm.4. The electrowetting device of claim 1 , wherein the hydrophobic film is constructed from TEFLON claim 1 , FLUOROPEL claim 1 , silicone compounds claim 1 , or a fatty acid with a thickness that ranges from about 100 nm to about 150 nm.5. The electrowetting device of further comprising:a nonpolar liquid also in contact with the hydrophobic film, wherein the decrease in the contact angle of the polar liquid causes the polar liquid to displace the nonpolar liquid from the hydrophobic film.6. The electrowetting device of claim 1 , wherein the electric field is ...

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Номер записи: 54
29-08-2013 дата публикации

ELECTROWETTING DISPLAY DEVICE

Номер: US20130222879A1
Автор: Cheng Pei-Pei, CHENG WEI-YUAN, Ku Yun-Sheng, Kuo Shu-Wei
Принадлежит: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

The disclosure provides an electrowetting display device. The electrowetting display device includes a first substrate and a second substrate disposed to each other. A first electrode layer may dispose on the first substrate. A second electrode layer may dispose on the second substrate. A hydrophobic dielectric layer is disposed on the first electrode layer. A first pixel rib is disposed on the first substrate. A second pixel rib is disposed on the first pixel rib. A water contact angle of the second pixel rib may be larger than that of the first pixel rib. A first liquid and a second liquid may be disposed in between the first substrate and the second substrate. 1. An electrowetting display device , comprising:a first substrate and a second substrate disposed opposite to each other;a first electrode layer disposed on the first substrate;a second electrode layer disposed on the second substrate;a hydrophobic dielectric layer disposed on the first electrode layer;a first pixel rib disposed on the first substrate;a second pixel rib disposed on the first pixel rib, wherein a water contact angle of the second pixel rib is larger than that of the first pixel rib; anda first liquid and a second liquid disposed between the first substrate and the second substrate.2. The electrowetting display device as claimed in claim 1 , wherein the second liquid contacts the hydrophobic dielectric layer claim 1 , and the first liquid is positioned on the second liquid.3. The electrowetting display device as claimed in claim 1 , wherein the first liquid is a polarized liquid and the second liquid is a weak polarized liquid claim 1 , having a polarity which is weaker than the polarized liquid claim 1 , or a non-polarized liquid.4. The electrowetting display device as claimed in claim 1 , wherein a shape of a pixel defined by the first pixel rib comprises a rectangular shape claim 1 , a square shape claim 1 , a triangular shape claim 1 , a circular shape claim 1 , a fan shape or hexagonal ...

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Номер записи: 55
29-08-2013 дата публикации

ELECTROWETTING DISPLAY

Номер: US20130222880A1
Автор: Nakasuga Akira, Nomura Shigeki, Unate Takao, WAKIYA Takeshi
Принадлежит: Sekisui Chemical Co., Ltd.

Provided is an electrowetting device capable of performing bright and high-contrast color display. In addition, provided is an electrowetting device capable of performing high-quality display without unevenness. 1. An electrowetting display in which each of a pair of substrates constituting one cell has a driving unit ,wherein a first substrate that stores a first hydrophobic liquid material in regions surrounded by a first pixel wall, and a second substrate that stores a second hydrophobic liquid material in regions surrounded by a second pixel wall are adhered to each other through a hydrophilic material.2. The electrowetting display according to claim 1 ,wherein a hydrophobic liquid material having light shielding properties is stored as a first hydrophobic liquid material in the regions surrounded by the first pixel wall, andtwo or more kinds of hydrophobic liquid materials, which contain a coloring material, are stored as the second hydrophobic liquid material in the regions surrounded by the second pixel wall, respectively.3. The electrowetting display according to claim 2 ,wherein the second hydrophobic liquid material corresponds to each color of RGB (Red, Green, Blue), CMY (Cyan, Magenta, Yellow), RGGB (Red, Green, Green, Blue), or RGBY (Red, Green, Blue, Yellow).4. The electrowetting display according to claim 1 ,wherein in at least one of each of the regions surrounded by the first pixel wall and each of the regions surrounded by the second pixel wall, a protrusion having a height lower than the height of each of the pixel walls, or an undulation having a height lower than the height of each of the pixel walls is provided.5. The electrowetting display according to claim 1 ,wherein the hydrophilic material is a gel-like material.6. The electrowetting display according to claim 1 ,wherein the height of at least one of the first pixel wall and the second pixel wall is set to be 2 to 20 times the height of the hydrophobic liquid materials, which are stored by ...

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Номер записи: 56
05-09-2013 дата публикации

VARIABLE FOCUS SPECTACLES WITH BIPOLAR LENS UNITS AND FRONT MASKING LENSES

Номер: US20130229617A1
Автор: Kurtin Stephen
Принадлежит: ZOOM FOCUS EYEWEAR LLC DBA SUPERFOCUS LLC

Variable focus spectacles including bipolar variable focus lens units and a front masking lens disposed in front of each variable focus lens unit. Each bipolar variable focus lens unit has a transparent rigid member, a transparent distensible membrane, a membrane support on which the membrane is mounted, a transparent liquid of a fixed volume filling in a sealed space between the rigid member and the membrane, and is connected to a bidirectional actuating mechanism for urging the membrane support and the rigid member to move toward and away from each other. Each front masking lens may have any suitable shape so long as its front surface is convex and reflections off that front surface typically dominate reflections off the underlying distensible membrane. 1. Variable focus spectacles , comprising: a transparent rigid member;', 'a transparent distensible membrane;', 'a membrane support on which the transparent distensible membrane is mounted; and', 'a transparent liquid of a fixed volume filling a sealed space between the rigid member and the membrane;, 'a variable focus lens unit, which includesa bidirectional actuating mechanism for urging the membrane support and the rigid member to move toward and away from each other, wherein the transparent distensible membrane is distended forward or backward and its front surface becomes concave, or flat, or convex as the membrane support and the rigid member move toward, or away, from each other; anda front lens having a convex front surface and disposed in front of the variable focus lens unit.2. The variable focus spectacles of claim 1 , wherein the front surface of the front lens has a reflectivity that is at least one-fifth of a reflectivity of the front surface of the membrane.3. The variable focus spectacles of claim 1 , wherein the variable focus lens unit includes a frame on which the membrane support is mounted claim 1 , and wherein the front lens includes a ring which has magnets for magnetically and removably ...

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Номер записи: 57
05-09-2013 дата публикации

Liquid meniscus lens with improved saline formulation

Номер: US20130229618A1
Автор: Adam Toner, Daniel B. Otts, James Daniel Riall, Katherine HARDY, Randall B. Pugh, Sharika Snook
Принадлежит: Individual

The present invention relates generally to a high-efficiency Electrowetting saline solution formulation. Specific embodiments include high-efficiency Electrowetting saline formulations that maximize the electrical performance of an arcuate liquid meniscus lens incorporated in an ophthalmic lens and operated using direct current.

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Номер записи: 58
12-09-2013 дата публикации

LIQUID-CRYSTAL LENS, DISPLAY APPARATUS AND ELECTRONIC EQUIPMENT

Номер: US20130235288A1
Автор: Takama Daisuke
Принадлежит: JAPAN DISPLAY WEST INC.

Disclosed herein is a liquid-crystal lens including: a plurality of first electrodes; a second electrode placed to be opposed to the first electrodes; and a liquid-crystal layer provided between the first electrodes and the second electrode. The first electrodes each receiving a relatively low voltage applied thereto are provided more adjacently to each other than the first electrodes each receiving a relatively high voltage applied thereto. 1. A liquid-crystal lens comprising:a plurality of first electrodes;a second electrode placed to be opposed to the first electrodes; anda liquid-crystal layer provided between the first electrodes and the second electrode,wherein the first electrodes each receiving a relatively low voltage applied thereto are provided more adjacently to each other than the first electrodes each receiving a relatively high voltage applied thereto.2. The liquid-crystal lens according to claim 1 , wherein the widths of the first electrodes are non-uniform.3. The liquid-crystal lens according to claim 1 ,wherein the liquid-crystal layer includes liquid-crystal molecules having refractive-index anisotropy, andthe orientations of the liquid-crystal molecules are changed by voltages applied through the first electrodes and the second electrode.4. The liquid-crystal lens according to claim 1 , wherein the liquid-crystal lens exhibits an effect of a lens having a lenticular-lens shape in a state of being applied with the voltages.5. A display apparatus comprising:a display section configured to display an image; anda liquid-crystal lens placed to be opposed to the display section and used to receive incident image light of the image to be displayed on the display section, a plurality of first electrodes,', 'a second electrode placed to be opposed to the first electrodes, and, 'wherein the liquid-crystal lens includes'}a liquid-crystal layer provided between the first electrodes and the second electrode,in which the first electrodes each receiving a ...

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Номер записи: 59
12-09-2013 дата публикации

EYEGLASS LENS AND DESIGN METHOD, MANUFACTURING METHOD AND DESIGN SYSTEM FOR EYEGLASS LENS

Номер: US20130235336A1
Автор: Kozu Kazuma, ODAIRA Tomohiro
Принадлежит: HOYA CORPORATION

An eyeglass lens, comprising: a hidden mark defining a predetermined reference point; and refractive portions arranged along a meridian extending substantially in a vertical direction via the predetermined reference point, and wherein the refractive portions comprises: a first refractive portion located on a lower side of the predetermined reference point and having a first refractive power; a second refractive portion located on an upper side of the predetermined reference point and having a second refractive power smaller than the first refractive power; and an intermediate refractive portion in which refractive power continuously decreases, and an aberration distribution in the first refractive portion is substantially symmetrical in a left and right direction with respect to the meridian extending in the vertical direction, and an aberration distribution in the second refractive portion is asymmetrical in the left and right direction with respect to the meridian shifted to an ear side. 1. An eyeglass lens , comprising:a hidden mark defining a predetermined reference point on the eyeglass lens; anda plurality of refractive portions arranged along a meridian extending substantially in a vertical direction on the eyeglass lens via the predetermined reference point defined by the hidden mark, a first refractive portion which is located on a lower side of the predetermined reference point and has a first refractive power;', 'a second refractive portion which is located on an upper side of the predetermined reference point and has a second refractive power smaller than the first refractive power; and', 'an intermediate refractive portion in which refractive power continuously decreases from the first refractive portion to the second refractive portion,, 'the plurality of refractive portions comprisingwherein:an aberration distribution in the first refractive portion is substantially symmetrical in a left and right direction with respect to the meridian extending in ...

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Номер записи: 60
12-09-2013 дата публикации

METHOD FOR DETERMINING A BASE SYSTEM OF DIFFRACTION GRATINGS FOR COLOR FRINGE CORRECTION OF SPECTACLE LENSES

Номер: US20130235337A1
Автор: Altheimer Helmut, Becken Wolfgang, Esser Gregor, Müller Werner, Trumm Stephan, Uttenweiler Dietmar, Wehner Edda
Принадлежит:

A method for producing a series of base lenses, which cover a predetermined power range, wherein each base lens of the series has a base power different from the base powers of the other base lenses of the series, and has at least one diffractive base grating, the method comprising: 1. A method for producing a series of base lenses , which cover a predetermined power range , wherein each base lens of the series has a base power different from the base powers of the other base lenses of the series , and has at least one diffractive base grating , the method comprising:specifying the base powers of each base lens of the series; andcalculating the base grating of each base lens of the series so as to minimize the color fringe of the respective base lens with the specified base power in a predetermined region of the spectacle lens.2. The method according to claim 1 , wherein the base lenses are spherocylindrical or spherical single-vision lenses.3. The method according to claim 1 , wherein calculating the base grating comprises simultaneously optimizing at least one of the refractive surfaces of the base lens and of the base grating.4. The method according to claim 1 , wherein the grating lines of the respective base grating are elliptical.5. The method according to claim 1 , wherein the grating lines of the respective base grating are rotationally symmetric.8. The method according to claim 1 , further comprising:assigning one correction range to each of the base lenses of the series, wherein the base grating of the base lens in the respective correction range corrects the color fringe of a spectacle lens with a power within this correction range such that the color fringe of the spectacle lens within a predetermined region of the spectacle lens is smaller than or equal to a predetermined threshold,wherein the base powers are specified such that the correction ranges of the individual base lenses cover the predetermined power range.9. The method according to claim 8 , ...

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Номер записи: 61
12-09-2013 дата публикации

SINGLE MICROSTRUCTURE LENS, SYSTEMS AND METHODS

Номер: US20130235338A1
Автор: Weeber Hendrik A.
Принадлежит:

Systems and methods for providing enhanced image quality across a wide and extended range of foci encompass vision treatment techniques and ophthalmic lenses such as contact lenses and intraocular lenses (IOLs). Exemplary IOL optics can include a circular surface structure which acts as a diffractive or phase shifting profile. In some cases, a single ring IOL includes an anterior face and a posterior face, where a profile can be imposed on the anterior or posterior surface or face. The profile can have an inner portion such as a microstructure or central echelette, and an outer portion. Between the inner portion and the outer portion, there may be a transition zone that connects the inner and outer portions. 1. An ophthalmic lens , comprising:a diffractive primary zone that presents a base diffractive surface having a purely optical function; anda refractive peripheral zone that surrounds the diffractive primary zone.2. The ophthalmic lens of claim 1 , further comprising a transition zone that physically connects the diffractive primary zone with the refractive peripheral zone claim 1 , wherein the transition zone optionally provides optical characteristics3. The ophthalmic lens of claim 1 , further comprising an echelette claim 1 , wherein the diffractive primary zone is characterized by a first constant phase shift claim 1 , and the echelette is characterized by a second constant phase shift that is equal to or different from the first constant phase shift.4. A method of designing an ophthalmic lens comprised of utilizing pupil size measurements and based on the measurements determining the size of an isolated echelette to impose on the surface of a lens.5. A lens/method according to claim 4 , in which the measurements are based on the pupil sizes of a group of patients. This application is a continuation application and claims priority to U.S. application Ser. No. 12/971,506, entitled “Single Microstructure Lens, Systems and Methods”, filed on Dec. 17, 2010, ...

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Номер записи: 62
12-09-2013 дата публикации

DISPLAY ELEMENT AND ELECTRIC DEVICE THAT USES THE SAME

Номер: US20130235445A1
Автор: Matsuoka Toshiki, Teranishi Tomoko, Tomotoshi Takuma, Ueki Shun
Принадлежит: SHARP KABUSHIKI KAISHA

Oil (an insulating fluid) (), which does not mix with a polar liquid (), is enclosed within each of multiple pixel regions (p), in a display element () which is equipped with an upper substrate (a first substrate) (), a lower substrate (a second substrate) (), the polar liquid () which is enclosed within a display space (S) formed between the upper substrate () and the lower substrate () so as to be movable toward an effective display region (P) or a non-effective display region (P). Furthermore, a surface active agent () is added to at least one of the polar liquid () and the oil (). 1. A display element which includes a first substrate that is provided on a display surface side , a second substrate that is provided on a non-display surface side of the first substrate so that a predetermined display space is formed between the first substrate and the second substrate , an effective display region and a non-effective display region that are defined with respect to the display space , and a polar liquid that is enclosed within the display space so as to be movable toward the effective display region , or toward the non-effective display region , and in which a display color on the display surface side is changeable , by moving the polar liquid , the display element comprising:a plurality of signal electrodes which are provided within the display space so as to come into contact with the polar liquid and which are arranged along a predetermined arrangement direction;a plurality of scanning electrodes which are provided on one of the first and second substrates, in a state of being electrically insulated from the polar liquid, so as to be arranged in one of the effective display region and the non-effective display region, and which are provided so as to intersect the plurality of signal electrodes;a plurality of pixel regions, each of which is provided at an intersection portion where the signal electrode and the scanning electrode intersect each other;a rib which is ...

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Номер записи: 63
26-09-2013 дата публикации

ELECTROWETTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME

Номер: US20130250396A1
Автор: KIM Myunghwan, Kim Sangil, LEE Byeong-Jin
Принадлежит: Samsung Display Co., Ltd.

An electrowetting display device includes a base substrate, a hydrophobic layer disposed on the base substrate and including at least about 49 atomic percent (at %) of fluorine atoms in a surface thereof, a wall disposed on the base substrate which partitions a pixel area, and an electrowetting layer that includes a first fluid and a second fluid, which are disposed in the pixel area and are immiscible with each other. The second fluid has an electrical conductivity or a polarity. The electrowetting display device further includes an electronic device is configured to apply an electric field to the electrowetting layer to control the electrowetting layer. 1. An electrowetting display device comprising:a base substrate;a hydrophobic layer disposed on the base substrate and including at least about 49 atomic percent (at) % of fluorine atoms in a surface thereof;a wall disposed on the base substrate which partitions a pixel area;an electrowetting layer that includes a first fluid and a second fluid, wherein the first fluid and the second fluid are disposed in the pixel area and are immiscible with each other, wherein the second fluid has an electrical conductivity or a polarity; andan electronic device configured to apply an electric field to the electrowetting layer to control the electrowetting layer.2. The electrowetting display device of claim 1 , wherein the hydrophobic layer includes an amorphous fluorine compound comprising at least one of —CxFy- claim 1 , CxFyHz- claim 1 , —CxFyCzHp- claim 1 , —CxFyO— claim 1 , or —CxFyN(H)— claim 1 , and wherein each of x claim 1 , y claim 1 , x claim 1 , p is an integer number which is no less than 1.3. The electrowetting display device of claim 1 , wherein the wall is disposed on the hydrophobic layer.4. The electrowetting display device of claim 1 , wherein the hydrophobic layer is disposed in the pixel area.5. The electrowetting display device of claim 1 , wherein the hydrophobic layer comprises a planarization portion ...

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Номер записи: 64
03-10-2013 дата публикации

PIXEL STRUCTURE FOR ELECTROWETTING DISPLAY DEVICES AND METHOD OF MANUFACTURING THE SAME

Номер: US20130258443A1
Автор: Jung Kwang-Chul, JUNG Mee-Hye
Принадлежит: SAMSUNG DISPLAY CO., LTD

An electrowetting display device includes a first display substrate, a second display substrate and a plurality of pixels having a fluid layer disposed between the first and second display substrates. Each of the pixels has a pixel structure including at least one conductive layer having a star-shape or a fan-shape disposed at a center portion of the pixels insulated by an insulating material inside the first display substrate. 1. An electrowetting display device comprising:a first display substrate;a second display substrate; anda plurality of pixels having a fluid layer disposed between the first and second display substrates, whereineach of the pixels has a pixel structure comprising at least one conductive layer having a star-shape or a fan-shape disposed at a center portion of the pixels insulated by an insulating material inside the first display substrate.2. The electrowetting display device as claimed in claim 1 , wherein at least one of the pixels comprises a first pixel electrode disposed on the insulating material inside the first display substrate.3. The electrowetting display device of claim 1 , wherein a plurality of conductive layers extend in different radial directions.4. The electrowetting display device of claim 3 , wherein an end of each of the plurality of conductive layers are connected to each other.5. The electrowetting display device of claim 2 , wherein the first pixel electrode has a substantially quadrangular shape claim 2 , and the first pixel electrode has a corner removed to form chamfer portions.6. The electrowetting display device of claim 5 , wherein at least a part of the chamfer portions has one of a straight shape claim 5 , a concave shape claim 5 , or a convex shape.7. The electrowetting display device of claim 2 , wherein the at least one of the pixels comprises a first pixel electrode and a notch portion disposed at a center of the first pixel electrode claim 2 , and the first pixel electrode and the notch portion are spaced ...

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Номер записи: 65
10-10-2013 дата публикации

VARIABLE FOCUS LENS HAVING TWO LIQUID CHAMBERS

Номер: US20130265647A1
Автор: Kern Thomas
Принадлежит: Optotune AG

A variable focus lens has a housing () and an actuator () which are mutually displaceable along an optical axis (A) of the lens. A primary membrane () is arranged between a first chamber () and a second chamber (), with the first and second chambers being filled with liquids of similar density but different indices of refraction. First and second auxiliary membranes () are provided for volume compensation. The first auxiliary membrane () forms a wall section of the first chamber (), and the second auxiliary membrane () forms a wall section of the second chamber (), at least one or both of the auxiliary membranes facing environmental air at its outer side. 1. A variable focus lens comprisinga first chamber filled with a first liquid,a second chamber filled with a second liquid, wherein said second liquid has different optical properties from said first liquid,a primary membrane separating said first and said second chamber and in contact with said first and second liquid, said primary membrane forming a lens surface intersecting an optical axis of said variable focus lens,a first auxiliary membrane forming a first wall section of said first chamber, anda second auxiliary membrane forming a first wall section of said second chamber,a housing forming a second wall section of at least said first and/or said second chamber, andan actuator connected to at least one of said membranes,wherein at least one of said auxiliary membranes is facing environmental air andwherein said actuator and said housing are mutually displaceable in a direction parallel to said optical axis, wherein a mutual displacement of said actuator and said housing causes said membranes to deform.2. The lens of comprising a foil forming said primary membrane as well as said auxiliary membranes.3. The lens of wherein at least one of the auxiliary membranes is connected to the environment by means of an opening in or between said housing and/or a holder.4. The lens of wherein a foil is permeable or semi- ...

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Номер записи: 66
17-10-2013 дата публикации

Electrowetting device

Номер: US20130271817A1
Автор: Kwang-Chul Jung, Mee Hye JUNG, Seong Gyu KWON
Принадлежит: Liquavista BV, Samsung LCD Netherlands R&D Center BV

An electrowetting device is provided that includes a lower substrate and an upper substrate facing each other, a first electrode positioned on the lower substrate, an edge electrode positioned on the lower substrate and adjacent to an edge of the first electrode, a hydrophobic insulating layer positioned on the first electrode and the edge electrode, a partition positioned on the lower substrate, a second electrode positioned on the upper substrate, and a first liquid and a second liquid positioned between the upper substrate and the lower substrate, wherein an electric field of a portion where the edge electrode is positioned is smaller than an electric field of a portion where the first electrode is positioned.

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Номер записи: 67
24-10-2013 дата публикации

PUPIL DEPENDENT DIFFRACTIVE LENS FOR NEAR, INTERMEDIATE, AND FAR VISION

Номер: US20130278891A1
Автор: Zhao Huawei
Принадлежит:

A multifocal diffractive lens comprises a multifocal diffractive structure coupled to a refractive component. The refractive component comprises at least one curved surface. The multifocal diffractive structure comprises a first plurality of substantially monofocal echellettes having a first optical power for near vision correction and a second plurality of substantially monofocal echellettes for far vision correction. The first plurality of substantially monofocal echellettes combined with the second plurality of substantially monofocal echellettes can provide a multifocal diffractive profile having decreased light scatter, chromatic aberration, and diffraction to non-viewing orders such that dysphotopsia is substantially inhibited. A third plurality of substantially monofocal echellettes having an intermediate optical power can be combined with the first plurality of substantially monofocal echellettes and the second plurality of substantially monofocal echellettes. 1. A lens to correct vision of an eye , the lens comprising ,a refractive component comprising at least one curved surface; anda multifocal diffractive structure optically coupled to the at least one curved surface, the multifocal diffractive structure comprising a first plurality of substantially monofocal echellettes having a first optical power corresponding to a near vision correction of the eye and a second plurality of substantially monofocal echellettes having a second optical power corresponding to a far vision correction of the eye.2. The lens of claim 1 , wherein the diffractive structure is imposed on the at least one curved surface.3. The lens of claim 1 , wherein the diffractive structure is imposed on a second component optically coupled to the refractive component.4. The lens of claim 1 , wherein the first plurality of substantially monofocal of echellettes extends substantially around an inner boundary and an outer boundary of each of substantially monofocal echellettes the second ...

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Номер записи: 68
24-10-2013 дата публикации

ELECTRO-WETTING DISPLAY DEVICES

Номер: US20130278990A1
Автор: KIM Gi Heon
Принадлежит: Electronics and Telecommunications Research Institute

Electro-wetting display devices are disclosed. The electro-wetting display may include an upper structure and a lower structure opposite to each other, a hydrophobic insulating layer covering a bottom surface of the upper structure, hydrophilic partitions disposed between the hydrophobic insulating layer and the lower structure to define pixel regions, and a colorless conductive fluid and a colored non-conductive fluid filling each of the pixel regions. A specific gravity of the colored non-conductive fluid may be smaller than a specific gravity of the colorless conductive fluid. 1. An electro-wetting display device comprising:an upper structure and a lower structure opposite to each other;a hydrophobic insulating layer covering a bottom surface of the upper structure;hydrophilic partitions disposed between the hydrophobic insulating layer and the lower structure to define pixel regions; anda colorless conductive fluid and a colored non-conductive fluid filling each of the pixel regions,wherein a specific gravity of the colored non-conductive fluid is smaller than a specific gravity of the colorless conductive fluid.2. The electro-wetting display device of claim 1 , wherein the lower structure includes a lower substrate claim 1 , a lower electrode disposed on a top surface of the lower substrate claim 1 , and a lower insulating layer covering the lower electrode on the top surface of the lower substrate;wherein the upper structure includes an upper substrate, an upper electrode disposed on a bottom surface of the upper substrate, and an upper insulating layer covering the upper electrode on the bottom surface of the upper substrate; andwherein the lower insulating layer of the lower structure and the upper insulating layer of the upper structure face each other.3. The electro-wetting display device of claim 2 , wherein the upper electrode is disposed to correspond to each of the pixel regions.4. The electro-wetting display device of claim 1 , wherein the colorless ...

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Номер записи: 69
24-10-2013 дата публикации

ELECTROWETTING OPTICAL ELEMENT

Номер: US20130278994A1
Автор: Feil Hermanus
Принадлежит: Miortech Holding B.V.

An electrowetting optical element comprising a first electrode layer stack and a second electrode layer stack, and a containment space formed between said first electrode layer stack and said second electrode layer stack, one or more pixel walls fixedly mounted on said second interface surface and extending between said first and second electrode stacks, for defining sides of said containment space. Said containment space at least contains a polar liquid and a non-polar liquid, the polar and non-polar liquids being immiscible with each other. Said hydrophobic interface surface has a higher hydrophobicity than the second interface surface. The electrowetting element is arranged for enabling powering of said first and second electrode layers for rearranging said polar liquid relative to said non-polar liquid. An end face of said one or more pixel walls opposite said first electrode layer stack faces said hydrophobic interface surface in a loose manner. 1. Electrowetting optical element comprisinga first electrode layer stack and a second electrode layer stack, anda containment space formed between said first electrode layer stack and said second electrode layer stack,one or more pixel walls extending between said first and second electrode stacks for defining sides of said containment space,said containment space at least containing a polar liquid and a non-polar liquid, the polar and non-polar liquids being immiscible with each other, a substrate,', 'a first electrode layer and', 'an insulating layer having a first interface surface with said containment space, and, 'said first electrode layer stack comprising'}said second electrode layer stack comprising a superstrate and a second electrode layer having a second interface surface with said containment space,said hydrophobic interface surface having a higher hydrophobicity then said second interface surface, andsaid electrowetting element being arranged for enabling powering of said first and second electrode layers ...

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Номер записи: 70
31-10-2013 дата публикации

3D Mold For Manufacturing Of Sub-Micron 3D Structures Using 2-D Photon Lithography And Nanoimprinting And Process Thereof

Номер: US20130286485A1
Автор: Kan Shyi-Herng
Принадлежит:

A process to manufacture a 3D mold to fabricate a high-throughput and low cost sub-micron 3D structure product is disclosed. The process integrates use of 2-photon laser lithography and 3D write technology to make a 3D mold of each layer of the 3D structure product, and then use nanoimprinting to form a sheet of polymer film of each layer of the 3D structure from the said 3D mold of that layer. Each layer of the sheet of polymer film is then fabricated into the sub-micron 3D structure product. The 3D mold of each layer of a high-throughput and low cost sub-micron 3D structure product, is further used to make master molds which is then used to form a sheet of polymer film of each layer of the 3D structure to fabricate the sub-micron 3D structure product. Applications using this process are also disclosed. 1. A micro-lens having a curved surface , wherein said curved surface is not limited by surface tension properties of a liquid used to make said micro-lens.2. The micro-lens of claim 1 , wherein said surface is contoured to focus claim 1 , reflect claim 1 , guide and bend light.3. The micro-lens of claim 1 , wherein said curved surface is non-spherical.4. The micro-lens of claim 1 , wherein said curved surface is asymmetric.5. A 3D structure comprising a plurality of layers bonded together wherein each of said plurality of layers has a thickness of between 0.01 micron and 150 microns.6. The 3D structure of claim 5 , wherein each of said layers has a thickness less than 1 micron.7. The 3D structure of claim 5 , wherein each of said layers has a thickness of 100 nm.8. The 3D structure of claim 5 , wherein said structure comprises a scaffold.9. The 3D structure of claim 8 , wherein said scaffold comprises a synthetic material10. The 3D structure of claim 8 , wherein said scaffold comprises a biological material.11. The 3D structure of claim 8 , wherein said structure comprises a tissue scaffold.12. The 3D structure of claim 8 , wherein said structure comprises an organ ...

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Номер записи: 71
14-11-2013 дата публикации

ELECTROWETTING DISPLAY DEVICE

Номер: US20130301108A1
Автор: HWANG Tae Hyung, LIM Tae Woo, SONG Keunkyu, YANG Jihoon
Принадлежит: Samsung Display Co., Ltd.

An electrowetting display device includes first and second barrier layers which cover first and second electrodes. The electrowetting display device includes a first base substrate which faces a second base substrate, the first electrode on the first base substrate, the first barrier layer which covers the first electrode, the second electrode on the second base substrate, the second barrier layer which covers the second electrode, a barrier wall between the first base substrate and the second base substrate, and an electrowetting layer between the first base substrate and the second base substrate. The barrier wall defines a pixel area corresponding to the first electrode, and the electrowetting layer is in the pixel area. The electrowetting layer includes a polar fluid and a non-polar fluid which are separated from each other. 1. An electrowetting display device comprising:a first base substrate which faces a second base substrate;a first electrode on the first base substrate;a first barrier layer which covers the first electrode;a second electrode on the second base substrate;a second barrier layer which covers the second electrode;a barrier wall between the first base substrate and the second base substrate, wherein the barrier wall defines a pixel area corresponding to the first electrode; andan electrowetting layer in the pixel area, between the first base substrate and the second base substrate, and comprising a polar fluid and a non-polar fluid which are separated from each other.2. The electrowetting display device of claim 1 , further comprising a hydrophobic layer on the first barrier layer.3. The electrowetting display device of claim 2 , whereinthe first barrier layer comprises a first inorganic layer which covers the first electrode, and an organic layer on the inorganic layer, andthe second barrier layer comprises a second inorganic layer.4. The electrowetting display device of claim 1 , further comprising an organic layer between the first electrode ...

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Номер записи: 72
14-11-2013 дата публикации

ELECTROWETTING OPTICAL DEVICE

Номер: US20130301109A1
Автор: Dermody Daniel L., Maillard Mathieu, Malet Géraldine, Ober Matthias Stefan
Принадлежит: PARROT

An electrowetting optical device is provided comprising a conductive liquid and a non-conductive liquid, the liquids being non miscible, having different refractive indices and forming an interface, wherein the conductive liquid comprises from 5% by weight of a fluorinated salt, based the total weight of the conductive liquid. An apparatus comprising said electrowetting optical device is described as well. 1. An electrowetting optical device comprising a conductive liquid and a non-conductive liquid , said liquids being non miscible , having different refractive indices and forming an interface , wherein the conductive liquid comprises from 5% by weight of a fluorinated salt , based on the total weight of the conductive liquid.2. The electrowetting optical device of claim 1 , wherein the conductive liquid comprises from 8% by weight of a fluorinated salt claim 1 , based the total weight of the conductive liquid.3. The electrowetting optical device of claim 1 , wherein the fluorinated salt is sodium trifluoroacetate or sodium triflate.4. The electrowetting optical device of claim 1 , wherein the refractive index of the non-conductive liquid is higher than the refractive index of the conductive liquid.5. The electrowetting optical device of claim 4 , wherein the conductive liquid has a refractive index below 1.39.6. The electrowetting optical device of claim 1 , wherein the difference of refractive index in the visible spectrum between said conductive and non-conductive liquids is greater than 0.24.7. The electrowetting optical device of claim 1 , wherein said conductive and non-conductive liquids have a partial miscibility below 0.2% at 20° C.8. The electrowetting optical device of claim 1 , wherein the conductive liquid further comprises one of a alcohol claim 1 , glycol claim 1 , ethylene glycol claim 1 , glycol ether claim 1 , polyol claim 1 , polyetherpolyol or a mixture thereof as lowering freezing-point agents.10. The electrowetting optical device of claim 1 , ...

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Номер записи: 73
14-11-2013 дата публикации

ELECTROWETTING DISPLAY APPARATUS AND DYE COMPOSITION FOR ELECTORWETTING DISPLAY

Номер: US20130301110A1
Автор: Higuchi Satoshi, Kato Takashi
Принадлежит: FUJIFILM Corporation

An electrowetting display apparatus is provided, which has a display unit including: a first substrate at least one surface of which is electroconductive; a second substrate arranged to face the electroconductive surface of first substrate; a hydrophobic insulation film arranged on the electroconductive surface of first substrate; a non-electroconductive oil provided between the hydrophobic insulation film and second substrate movably on the hydrophobic insulation film and containing a nonpolar solvent, a dye in a content of 10 mass % or higher with respect to the total mass of oil, and a nonionic surfactant; and an electroconductive hydrophilic liquid provided between the hydrophobic insulation film and second substrate so as to contact the oil; wherein an image is displayed by applying a voltage between the hydrophilic liquid and electroconductive surface of first substrate for changing the shape of an interface between the oil and hydrophilic liquid. 1. An electrowetting display apparatus comprising a display unit , the display unit comprising:a first substrate at least one surface of which is at least partly electroconductive;a second substrate arranged so as to face the at least partly electroconductive surface of the first substrate;a hydrophobic insulation film placed on at least a part of the at least partly electroconductive surface of the first substrate;a non-electroconductive oil which is provided between the hydrophobic insulation film and the second substrate movably on the hydrophobic insulation film and comprises a nonpolar solvent, a dye at a content of 10 mass % or higher with respect to the total mass of the oil, and a nonionic surfactant; andan electroconductive hydrophilic liquid provided between the hydrophobic insulation film and the second substrate so as to contact the oil,wherein an image is displayed by applying a voltage between the hydrophilic liquid and the electroconductive surface of the first substrate and changing the shape of an ...

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Номер записи: 74
21-11-2013 дата публикации

Hinge Mechanism for a Fluid Filled Lens Assembly

Номер: US20130308088A1
Автор: Amitava Gupta, Bruce Decker, Daniel Senatore, Frank Stangota, Jonathan Downing, Karim Haroud, Lisa Nibauer, Matthew Wallace Peterson, Pascal Loser, Thomas M. Mcguire, Urban Schnell, William Egan
Принадлежит: Adlens Beacon Inc

In an embodiment, a hinge for a fluid-filled lens assembly includes a base having a first end configured to connect to a temple arm of the lens assembly and a second end configured to connect to a frame of the lens assembly, wherein the base includes a gap that is shaped to allow for tubing to pass from the first end to the second end of the base. In an embodiment, the first end of the base includes a cammed surface configured to engage a surface of the temple arm. In an embodiment, the first and second ends of the base are configured to flex around a rotation axis of the hinge.

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Номер записи: 75
28-11-2013 дата публикации

COLORANTS FOR METALORGANIC COMPOUNDS AND THEIR APPLICATION IN ELECTRONIC DISPLAY TECHNOLOGY

Номер: US20130313491A1
Автор: Clapp Lisa, SCHWARTZ Russell, Vilner Stanislav G.
Принадлежит:

Colored metalorganic fluids for electrowetting, electrofluidic, and electrophoretic devices are disclosed. The colored fluid can include a polar or nonpolar solvent including silicon and/or germanium and a modified, oligomeric, or polymeric dye. The dye includes a chromophore attached to a low molecular weight group with molecular weight 10 to 800 or an oligomeric or polymeric chain, which includes silicon and/or germanium. The dye has a molecular weight from 100 to 100,000, solubility in the solvent of at least 5% wt at 25° C., and a dynamic viscosity from 0.5 cPs to 2,000 cPs at 25° C. If the solvent is polar, the fluid has a conductivity from about 0.01 pS/cm to 3000 pS/cm, a surface tension of 15 dynes/cm to 90 dynes/cm at 25° C., and a total content of monatomic ions with radii smaller than 2.0 A and polyatomic ions with radii smaller than 1.45 A less than 500 ppm. 1. A colored metalorganic fluid comprising:at least one polar or non-polar solvent including silicon and/or germanium and at least one modified, oligomeric, or polymeric dye in the solvent, the dye having at least one chromophore attached to a low molecular weight group with molecular weight 10 to 800 or an oligomeric or polymeric chain, which includes silicon and/or germanium, the dye further having a total molecular weight from 100 to 100,000, solubility in the solvent of at least 5% by wt at 25° C., and a dynamic viscosity from 0.1 cPs to 2,000 cPs at 25° C., and{'sup': '−3', 'wherein, if the solvent is the polar solvent, the colored metalorganic fluid has a conductivity from about 0.01 μS/cm to 3000 μS/cm, a surface tension of 15 dynes/cm to 90 dynes/cm at 25° C., and a total content of monatomic ions with radii smaller than 2.0 Å and polyatomic ions with radii smaller than 1.45 Å less than 500 ppm, and, if the solvent is the non-polar solvent, the colored metalorganic fluid has a conductivity less than 5×10μS/cm and a surface tension of 10 dynes/cm to 40 dynes/cm at 25° C.'}2. The colored ...

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Номер записи: 76
05-12-2013 дата публикации

Progressive Addition Lens Design

Номер: US20130321762A1
Автор: Blum Ronald D., Gupta Amitava
Принадлежит: PixelOptics, Inc.

Aspects of the present invention provide progressive addition lenses (PALs) and techniques for designing PALs that result in improved visual performance for the wearer, PALs of the present invention can have vision zones with widths that are more in line with the actual. or functional sizes used by wearers. PALs of the present invention can also introduce controlled amounts of unwanted astigmatism into one or more vision zones. By allowing vision zones to include manageable levels of astigmatism, the resulting PAL can avoid the harsh build-up of astigmatism typically found in conventional PALs at the periphery of the channel and viewing zones. Further, PALs of the present invention can be designed using a merit function to achieve an optimized iterative design that accounts for astigmatism vector orientation and not simply astigmatism magnitude as is the case with conventional PAL design. 111-. (canceled)12. An ophthalmic lens , comprising:a progressive optical power region having a channel and providing a far distance vision zone, an intermediate distance vision zone and a near distance vision zone,wherein the channel length is 17 mm or less,wherein the near distance vision zone provides at least 2.00 D of add power, andwherein the near distance vision zone comprises 0.50 D or less of unwanted astigmatism across its width.13. The ophthalmic lens of claim 12 , wherein the far distance vision zone comprises 0.18 D or less of unwanted astigmatism.14. The ophthalmic lens of claim 12 , wherein the intermediate distance vision zone comprises 0.35 D or less of unwanted astigmatism.15. The ophthalmic lens of claim 12 , wherein the width of the near distance vision zone is 20 mm or less.16. The ophthalmic lens of claim 12 , wherein a width of the intermediate distance vision zone is 20 mm or less.17. The ophthalmic lens of claim 12 , wherein a width of the far distance vision zone is 40 mm or less.18. The ophthalmic lens of claim 12 , wherein the ophthalmic lens is a single ...

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Номер записи: 77
05-12-2013 дата публикации

ELECTROWETTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME

Номер: US20130321894A1
Автор: KIM Joonyoup, LEE Boram, Noh Jung-Hun, PARK DaeJin, SHIN Donghwa
Принадлежит: Samsung Display Co., Ltd.

An electrowetting display device includes a base substrate, an electrowetting layer having first and second fluids immiscible with each other, a wall to define a pixel area, a hydrophobic layer in the pixel area, and an electronic device to control the electrowetting layer. A method of manufacturing the electrowetting display device is also provided. 1. An electrowetting display device comprising:a base substrate;an electrowetting layer which comprises a first fluid and a second fluid immiscible with the first fluid, the second fluid having electrical conductivity or polarity;a wall on the base substrate that partitions a pixel area;a hydrophobic layer in the pixel area; andan electronic device configured to apply an electric field to the electrowetting layer,wherein the wall comprises a top surface substantially parallel to the base substrate and a lateral surface connecting the base substrate with the top surface, and wherein the hydrophobic layer covers the base substrate and the lateral surface of the wall.2. A method of manufacturing an electrowetting display device , the method comprising:forming a wall on a base substrate, wherein the wall defines a pixel area;forming a hydrophobic layer which covers a top surface of the base substrate and a lateral surface of the wall and which exposes a top surface of the wall;forming an electrowetting layer in the pixel area; andforming an electronic device configured to control the electrowetting layer.3. The method of claim 2 , wherein forming the hydrophobic layer comprises:forming a pre-hydrophobic layer on the base substrate where the wall is formed;shrinking the wall to separate a portion of the pre-hydrophobic layer from the wall; andremoving the separated pre-hydrophobic layer to expose the top surface of the wall.4. The method of claim 3 , wherein shrinking the wall is performed by heating the wall at a first temperature.5. The method of claim 4 , the first temperature is in a range of about 115° C. to about 160° ...

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Номер записи: 78
05-12-2013 дата публикации

Electrowetting display device and dye composition for electrowetting display

Номер: US20130321895A1
Автор: Hiroyuki Naito, Takashi Kato, Yasuhiro Ishiwata
Принадлежит: Fujifilm Corp

An electrowetting display device that includes a display member having: a first substrate in which at least one surface has conductivity, a second substrate which is disposed to face the conductive surface of the first substrate, a hydrophobic insulating film which is provided on the conductive surface of the first substrate, an oil, which is non-conductive, provided between the hydrophobic insulating film and the second substrate so as to be movable on the hydrophobic insulating film, and containing a nonpolar solvent and a methine dye including two dye mother nuclei that are linked through a linking group having a methine unsaturated chain, and a hydrophilic liquid which is conductive, provided between the hydrophobic insulating film and the second substrate so as to be in contact with the oil.

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Номер записи: 79
05-12-2013 дата публикации

TUNABLE ACOUSTIC GRADIENT INDEX OF REFRACTION LENS AND SYSTEM

Номер: US20130321927A1
Автор: Arnold Craig B., McLeod Euan, Mermillod-Blondin Alexandre
Принадлежит: TAG Optics Inc.

A tunable acoustic gradient index of refraction (TAG) lens and system are provided that permit, in one aspect, dynamic selection of the lens output, including dynamic focusing and imaging. The system may include a TAG lens and at least one of a source and a detector of electromagnetic radiation. A controller may be provided in electrical communication with the lens and at least one of the source and detector and may be configured to provide a driving signal to control the index of refraction and to provide a synchronizing signal to time at least one of the source and the detector relative to the driving signal. Thus, the controller is able to specify that the source irradiates the lens (or detector detects the lens output) when a desired refractive index distribution is present within the lens, e.g. when a desired lens output is present. 135.-. (canceled)36. A tunable acoustic gradient index of refraction lens , comprising: a casing having a cavity disposed therein for receiving a refractive material capable of changing its refractive index in response to application of an acoustic wave thereto , the casing having an electrical feedthrough port in the casing wall in communication with the cavity; and a piezoelectric element disposed within the casing in acoustic communication with the cavity for delivering an acoustic wave to the cavity to alter the refractive index of the refractive material responsively to an input or an out put of electromagnetic radiation to or from the cavity.37. The tunable acoustic gradient index of refraction lens according to claim 36 , wherein the casing has a fluid port in the casing wall in fluid communication with the cavity to permit introduction of a refractive fluid into the cavity.38. The tunable acoustic gradient index of refraction lens according to wherein the casing comprises an outer casing having a chamber disposed therein and an inner casing disposed within the chamber of the outer casing claim 36 , the cavity disposed within ...

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Номер записи: 80
05-12-2013 дата публикации

Liquid lens

Номер: US20130321928A1
Автор: Jie Li, Kai-Li Jiang, Shou-Shan Fan
Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

A liquid lens includes a sealed shell, a liquid material, a transparent carbon nanotube structure within the liquid material, and a first electrode and a second electrode, a voltage being applied to the carbon nanotube structure causes rapid heating, which is transferred to the liquid material to change the density thereof, and the refractive index of the liquid material is thus changed.

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Номер записи: 81
12-12-2013 дата публикации

ELECTROWETTING DISPLAY AND METHOD OF MANUFACTURING THE SAME

Номер: US20130329274A1
Автор: Sung Woo Yong, Yang SungHoon
Принадлежит: Samsung Display Co., Ltd.

An electrowetting display includes first and second substrates facing each other, an electrowetting layer, a first electrode, a second electrode, and a hydrophobic barrier layer. The electrowetting layer is disposed between the first substrate and the second substrate and includes a first fluid and a second fluid, and the first fluid has an electrical conductivity or a polarity. The first electrode is disposed on the first substrate, and the second electrode forms an electric field in cooperation with the first electrode to control a position of the first fluid. The hydrophobic barrier layer is disposed between the first substrate and the electrowetting layer to cover the first electrode and includes a first surface making contact with the first electrode and a second surface having a hydrophobicity stronger than a hydrophobicity of the first surface and making contact with the electrowetting layer. 1. An electrowetting display comprising:a first substrate;a second substrate facing the first substrate;an electrowetting layer between the first substrate and the second substrate, the electrowetting layer including a first fluid and a second fluid, wherein the first fluid has electrical conductivity or a polarity;a first electrode on the first substrate;a second electrode configured to form an electric field in cooperation with the first electrode; anda hydrophobic barrier layer between the first substrate and the electrowetting layer to cover the first electrode, wherein the hydrophobic barrier layer includes a first surface contacting the first electrode and a second surface having a hydrophobicity stronger than a hydrophobicity of the first surface, and wherein the second surface contacts the electrowetting layer.2. The electrowetting display of claim 1 , wherein the hydrophobic barrier layer comprises:a hydrophilic portion that includes the first surface and contacts the first electrode; anda hydrophobic portion coupled to the hydrophilic portion, wherein the ...

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Номер записи: 82
19-12-2013 дата публикации

ELECTROWETTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME

Номер: US20130335804A1
Автор: CHA Tae-Woon, CHOI Sang-Gun, KIM Tae-Gyun, LEE A-Ram, SUNG Woo-Yong
Принадлежит: Samsung Display Co., Ltd.

A method of manufacturing an electrowetting display device includes a preliminary partition wall pattern formed on a lower substrate on which a pixel electrode of an oxide series and an insulation layer are formed. The preliminary partition wall pattern is disposed along a boundary of the pixel electrode. A water-repellent layer including a self-assembled monolayer having a hydrophobic property is formed on the lower substrate. A portion of the preliminary partition wall pattern and the water-repellent layer formed on the preliminary partition wall pattern are removed to form a partition wall pattern on the insulation layer and to form a water-repellent pattern on the pixel electrode and the insulation layer between partition walls of the partition wall patterns. A fluid layer is formed on the lower substrate on which the water-repellent pattern is formed. The lower substrate and an upper substrate are combined with each other. 1. A method of manufacturing an electrowetting display device , the method comprising:forming a preliminary partition wall pattern on a lower substrate on which a pixel electrode and an insulation layer are formed, wherein the preliminary partition wall pattern is disposed along a boundary of the pixel electrode;forming a water-repellent layer on the preliminary partition wall pattern, the pixel electrode, and the insulation layer, wherein the water-repellent layer comprises a self-assembled monolayer having a hydrophobic property;removing a portion of the preliminary partition wall pattern and the water-repellent layer formed on the preliminary partition wall pattern, and forming a partition wall pattern on the insulation layer and forming a water-repellent pattern on the insulation layer and the pixel electrode between partition walls of the partition wall pattern;forming a fluid layer on the lower substrate on which the water-repellent pattern is formed; andcombining the lower substrate with an upper substrate.2. The method of claim 1 , ...

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Номер записи: 83
19-12-2013 дата публикации

CONTROLLED DIFFUSE SCATTERING FOR DISPLAYS

Номер: US20130335805A1
Автор: Dean Kenneth A., Rudolph John, Yang Shu
Принадлежит:

A display device comprising a pixel, where the pixel includes: (a) a polar fluid that is at least one of colored and black, (b) a non-polar fluid that is at least one of transparent and translucent, (c) a first substrate, (d) a second substrate arranged relative to the first substrate to define a channel occupied by the polar fluid and the non-polar fluid, wherein at least one of the polar fluid and the non-polar fluid is visible through at least one of the first substrate and the second substrate, (e) a reflector having a plurality of features, comprising at least one of concavities and projections, that alter an angle of reflected light from a specular reflection to provide the appearance of at least one of a diffuse reflection and a non-metallic reflection, where the reflector includes a hydrophobic coating causing the polar fluid that is at least one of colored and black to be non-wetting to the hydrophobic coating in the presence of the non-polar fluid, the display device also including a plurality of electrodes configured to cause repositioning of the polar fluid in the channel to displace at least a first portion of the non-polar fluid and a voltage source, where repositioning of the polar fluid occurs as a unified volume to retard reduced light reflection from the reflector in a portion of the channel where the polar fluid has been repositioned. 1. A display device comprising: a polar fluid that is at least one of colored and black,', 'a non-polar fluid that is at least one of transparent and translucent,', 'a first substrate,', 'a second substrate arranged relative to the first substrate to define a channel occupied by the polar fluid and the non-polar fluid, wherein at least one of the polar fluid and the non-polar fluid is visible through at least one of the first substrate and the second substrate,', 'a reflector having a plurality of features, comprising at least one of concavities and projections, that alter an angle of reflected light from a specular ...

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Номер записи: 84
26-12-2013 дата публикации

ELECTROWETTING DISPLAY DEVICE

Номер: US20130342890A1
Автор: Ju Jinho, LEE Hyun Sup, PARK Sungkyun, PARK Yong Jun, SHIM SeungBo
Принадлежит: Samsung Display Co., Ltd.

An electrowetting display device includes a black matrix that includes a plurality of openings corresponding to pixels, respectively, a first extension portion extending in a driving direction of an electrowetting layer, the driving direction being a direction in which motion of the electrowetting layer is induced when a voltage difference is applied between a common electrode and a pixel electrode, and a partition wall that partitions the pixels. The first extension portion includes first and second areas respectively extending in opposite directions to each other and a third area having a width substantially the same as a width of the partition wall. The first area has a width less than about half of a first length corresponding to a length extending between both sides of each pixel in the driving direction, and the second area has a width less than the width of the first area. 1. An electrowetting display device comprising:a first base substrate that includes a plurality of pixels;a second base substrate that faces the first base substrate and includes a common electrode;an electrowetting layer disposed between the first base substrate and the second base substrate;a plurality of pixel electrodes disposed on the first base substrate to respectively correspond to the pixels;a black matrix that includes a plurality of openings corresponding to respective ones of the pixels, the black matrix having a first extension portion extending in a driving direction of the electrowetting layer, the driving direction being a direction in which motion of the electrowetting layer is induced when a voltage difference is applied between the common electrode and the corresponding pixel electrode, and extending in a second direction substantially perpendicular to the driving direction; anda partition wall that partitions the pixels, wherein the first extension portion comprises a first area, a second area, and a third area, the first area and the second area respectively extending ...

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Номер записи: 85
26-12-2013 дата публикации

ELECTROWETTING DISPLAY DEVICE

Номер: US20130342891A1
Автор: CHEN Cheng-Yi, Chou Cheng-Yi, Lai Tai-Yen, Li Chen-Wei, Wang Chih-Yuan, Wu Yu-Hua
Принадлежит:

An electrowetting display device includes a lower substrate, an upper substrate, a medium layer, a lower electrode, an upper electrode, and a molecular chain layer. The medium layer is disposed between the lower substrate and the upper substrate. The medium layer includes a first medium and a second medium separated from each other. The first medium is a light transmission medium, and the second medium is a light-shielding medium. The lower electrode is disposed between the medium layer and the lower substrate. The molecular chain layer is disposed between the medium layer and the lower electrode. The molecular chain layer includes molecular chains. Each molecular chain has a first section and a second section. The first section is used to attract the first medium or repel the second medium. The second section is used to attract the second medium or repel the first medium. 1. An electrowetting display device , comprising:a lower substrate;an upper substrate disposed opposite to the lower substrate;a medium layer disposed between the upper substrate and the lower substrate, wherein the medium layer comprises a first medium and a second medium separated from each other, wherein the first medium is a light transmission medium and the second medium is a light-shielding medium;a lower electrode disposed between the lower substrate and the medium layer;an upper electrode disposed between the upper substrate and the medium layer; anda molecular chain layer disposed between the lower electrode and the medium layer, wherein the molecular chain layer comprises a plurality of molecular chains, and each of the molecular chains has a first section and a second section, such that the first section is used to attract the first medium or repel the second medium, and the second section is used to attract the second medium or repel the first medium.2. The electrowetting display device according to claim 1 , wherein the first medium comprises a polar liquid material claim 1 , and the ...

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Номер записи: 86
26-12-2013 дата публикации

Lens Design Forms With No 3rd or 5th Order Aberrations

Номер: US20130342920A1
Автор: Duckett, III George E.
Принадлежит:

The invention is directed to correcting compound lens forms for 3rd and 5th order ray aberrations. All lens design forms have limiting aberrations. The proposed classes of lenses can be corrected for all 3rd and 5th order ray aberrations. The limiting aberrations are seventh order or higher. A variety of these lenses are disclosed here for the sake of example. These lens design forms can be used in various applications including the objective lens for an endoscope or other optical instrument. 1. An optical system which is correctable for all third order aberrations and all fifth order aberrations , having an object side and an image side , and comprising in order from the object side to the image side:a first lens, which is positive meniscus and concave to the object side;a second lens, which is negative meniscus and concave to the object side;a third lens, which is negative meniscus and convex to the object side;a fourth lens, which is biconvex; and,a fifth lens, which is negative meniscus and concave to the object side.2. The optical system of claim 1 , wherein the first lens and the second lens are arranged as a doublet.3. The optical system of claim 1 , further comprising an additional element for rendering the optical system achromatic.4. An optical system which is correctable for all third order aberrations and all fifth order aberrations claim 1 , having an object side and an image side claim 1 , and comprising in order from the object side to the image side:a first lens, which is positive meniscus and convex to the object side;a second lens, which is positive meniscus and concave to the object side;a third lens, which is negative meniscus and concave to the object side;a fourth lens, which is biconvex; and,a fifth lens, which is negative meniscus and concave to the object side.5. The optical system of claim 4 , wherein the second lens and the third lens are arranged as a doublet.6. The optical system of claim 4 , further comprising an additional element for ...

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Номер записи: 87
02-01-2014 дата публикации

VARIABLE FOCUS ELECTROACTIVE OPHTHALMIC DEVICE

Номер: US20140002789A1
Автор: Flitsch Frederick, Otts Daniel, Pugh Randall, Riall James, Toner Adam
Принадлежит:

A variable focus ophthalmic device is described. The device comprises a front curve optical portion of the variable focus ophthalmic device comprising a front curve top optical surface and a front curve bottom optical surface and a back curve optical portion of the variable focus ophthalmic device comprising a back curve top optical surface and a back curve bottom optical surface. A cavity is formed by the front curve bottom optical surface of the front curve optical portion of the variable focus ophthalmic device and the back curve top optical surface of the back curve portion of the variable focus ophthalmic device. A first fluid with a first index of refraction and a second fluid with a second index of refraction is provided, wherein the first index of refraction and the second index of refraction are different and the two fluids are immiscible. A dielectric film in contact with at least a portion of one or more of the first or second fluids and overlying an electrode capable of establishing an electric field is provided. One or more reservoir regions for containment of a volume of fluid equal or approximately equal to the volume of the first fluid and wherein the reservoir is in fluid connection with said formed cavity. 1. A variable focus ophthalmic device comprising:a front curve optical portion of the variable focus ophthalmic device comprising a front curve top optical surface and a front curve bottom optical surface;a back curve optical portion of the variable focus ophthalmic device comprising a back curve top optical surface and a back curve bottom optical surface;a cavity formed by the front curve bottom optical surface of the front curve optical portion of the variable focus ophthalmic device and the back curve top optical surface of the back curve portion of the variable focus ophthalmic device;a first fluid with a first index of refraction and a second fluid with a second index of refraction, wherein the first index of refraction and the second index ...

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Номер записи: 88
02-01-2014 дата публикации

MULTIPLE STATE ELECTROACTIVE OPHTHALMIC DEVICE

Номер: US20140002790A1
Автор: Flitsch Frederick, Otts Daniel, Pugh Randall B., Riall James, Toner Adam
Принадлежит:

A variable focus ophthalmic device is described. The device comprises a front curve optical portion of the variable focus ophthalmic device comprising a front curve top optical surface and a front curve bottom optical surface and a back curve optical portion of the variable focus ophthalmic device comprising a back curve top optical surface and a back curve bottom optical surface. A cavity is formed by the front curve bottom optical surface of the front curve optical portion of the variable ophthalmic device and the back curve top optical surface of the back curve portion of the variable focus ophthalmic device. A fluid with a first index of refraction and a dielectric film is in contact with at least a portion of the fluid with a first index of refraction and overlaying an electrode capable of establishing an electric field. A gas with a second index of refraction is provided, wherein the first index of refraction and the second index of refraction are different. One or more reservoir regions operable to change its volume for containment of a volume less than or equal to the volume of said fluid are provided and wherein the reservoir is in fluid connection with said formed cavity. 1. A variable focus ophthalmic device comprising:a front curve optical portion of the variable focus ophthalmic device comprising a front curve top optical surface and a front curve bottom optical surface;a back curve optical portion of the variable focus ophthalmic device comprising a back curve top optical surface and a back curve bottom optical surface;a cavity formed by the front curve bottom optical surface of the front curve optical portion of the variable ophthalmic device and the back curve top optical surface of the back curve portion of the variable focus ophthalmic device;a fluid with a first index of refraction and a dielectric film in contact with at least a portion of the fluid with a first index of refraction and overlaying an electrode capable of establishing an electric ...

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Номер записи: 89
02-01-2014 дата публикации

ELECTROWETTING DISPLAY APPARATUS AND DYE COMPOSITION FOR ELECTROWETTING DISPLAY

Номер: US20140002888A1
Автор: ISHIWATA Yasuhiro, Kato Takashi, NAITO Hiroyuki
Принадлежит:

The electrowetting display apparatus includes a display unit including: a first substrate at least one surface of which is electroconductive; a second substrate disposed to face the electroconductive surface of the first substrate; a hydrophobic insulation film disposed on the electroconductive surface side of the first substrate; a non-electroconductive oil which is provided between the hydrophobic insulation film and second substrate movably on the hydrophobic insulation film and includes a non-polar solvent and an azamethine-based colorant containing two colorant mother nuclei bonded via a linking group represented by ═N—; and an electroconductive hydrophilic liquid provided between the hydrophobic insulation film and second substrate to contact the oil; in which an image is displayed by applying a voltage between the hydrophilic liquid and the electroconductive surface of first substrate and changing the shape of interface between the oil and hydrophilic liquid. 1. An electrowetting display apparatus , comprising a display unit , the display unit comprising:a first substrate, at least one surface of which is at least partly electroconductive;a second substrate disposed so as to face the at least partly electroconductive surface of the first substrate;a hydrophobic insulation film disposed on at least a part of the at least partly electroconductive surface of the first substrate;a non-electroconductive oil that is provided between the hydrophobic insulation film and the second substrate movably on the hydrophobic insulation film and that comprises a non-polar solvent and an azamethine-based colorant comprising two colorant mother nuclei bonded via a linking group represented by ═N—; andan electroconductive hydrophilic liquid provided between the hydrophobic insulation film and the second substrate so as to contact the oil;wherein an image is displayed by applying a voltage between the hydrophilic liquid and the at least partly electroconductive surface of the ...

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Номер записи: 90
09-01-2014 дата публикации

Electro-Active Diffractive Lens and Method for Making the Same

Номер: US20140009700A1
Автор: James John, Joshua N. Haddock, Peter Crossley, Philip Rawlins, Roger Clarke, William Kokonaski
Принадлежит: PixelOptics Inc

Aspects of the present invention provide an electro-active lens and method for manufacturing the same that encapsulates liquid crystal using solid transparent optical material using an improved liquid crystal seal feature. The seal feature greatly reduces the visibility of the liquid crystal seal feature in an assembled electro-active lens. The seal feature is also structurally robust such that the electro-active lens can be processed to fit a spectacle frame without disturbing containment of the liquid crystal and without disrupting electrical connectivity to the lens used to alter the refractive index of the liquid crystal, thereby ensuring fabrication of a commercially viable electro-active lens.

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Номер записи: 91
09-01-2014 дата публикации

HIGH EFFICIENCY OPTIC

Номер: US20140009736A1
Автор: Zhao Huawei
Принадлежит:

Ophthalmic lenses and methods for their design and use involve displacement functions based on the sum of a continuous cosine function and a continuous sine function, optionally over a plurality of echelettes. Exemplary monofocal and multifocal diffractive ophthalmic lenses provide reduced light scatter and/or improved light energy distribution properties. Such properties can be provided by diffractive profiles, often having subtlety shaped echelettes with appropriately curving profiles. Light scatter may be generated by the sharp corners associated with vertical steps between adjacent conventional diffractive echelettes. Smooth diffractive profiles of the invention reduce light scatter. Light energy directed toward non-viewing diffractive orders may have a unwanted effects on vision quality. Diffractive profiles as described herein may limit the light energy in certain, selected orders, thereby improving viewing quality and mitigating unwanted effects such as dysphotopsia. Diffractive profiles may also vary the light energy distributed between individual echelettes, providing additional advantages in various viewing situations. 1. An ophthalmic lens , comprising:an anterior face with an anterior refractive profile and a posterior face with a posterior refractive profile, the faces disposed about an optical axis;a diffractive profile imposed on one of the refractive profiles, the diffractive profile comprising a plurality of echelettes, the diffractive profile characterized by a displacement function over the plurality of echelettes, the displacement function comprising the sum of a continuous cosine function and a continuous sine function over the plurality of echelettes.2. The ophthalmic lens according to claim 1 , wherein the continuous sine function is affected by a hyperbolic tangent function.3. The ophthalmic lens according to claim 1 , wherein the continuous cosine function is affected by a hyperbolic tangent function.4. The ophthalmic lens according to claim ...

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Номер записи: 92
09-01-2014 дата публикации

REFLECTIVE DISPLAY

Номер: US20140009814A1
Автор: Gibson Gary, Henze Dick, Sheng Xia
Принадлежит:

A display element comprises a reservoir and a channel connected to the reservoir. The channel extends across an area including a visible area of the display element, and the reservoir is substantially outside the visible area. The display element further comprises at least one electrode and a luminescent fluid in the reservoir and movable, by means of signals applied to the at least one electrode, between a first position and a second position. In the first position, the luminescent fluid is substantially contained in the reservoir outside the visible area and in the second position, the luminescent fluid extends along the channel to occupy the visible area. The luminescent fluid absorbs light in a first color waveband and converts the absorbed light to light in a second color waveband different from the first color waveband. 1. A display element comprising:a reservoir;a channel connected to the reservoir, the channel extending across an area including a visible area of the display element, and the reservoir substantially outside the visible area;at least one electrode; anda luminescent fluid in the reservoir and movable, by means of signals applied to the at least one electrode, between a first position in which the luminescent fluid is substantially contained in the reservoir outside the visible area and a second position in which the luminescent fluid extends along the channel to occupy the visible area; the luminescent fluid for absorbing light in a first color waveband and for converting absorbed light to light in a second color waveband different from the first color waveband.2. A display element as claimed in claim 1 , further comprising a reflector.3. A display element as claimed in claim 1 , wherein:the first color waveband is a broad absorption waveband, and/orthe second color waveband is a narrow emission waveband.4. A display element as claimed in claim 1 , wherein the luminescent fluid comprises an electrically movable fluid comprising luminescent ...

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Номер записи: 93
09-01-2014 дата публикации

CHANGEABLE LIQUID LENS ARRAY AND METHOD OF MANUFACTURING THE SAME

Номер: US20140009815A1
Автор: Bae Jung-mok, CHOI Seung-yul, KWON Yong-joo, Lee Hong-seok, LEE Jung-Hoon, SONG Hoon
Принадлежит:

A changeable liquid lens array and a method of manufacturing the same. The changeable liquid lens array includes a substrate, a plurality of partition walls arrayed on the substrate and having a fluid travel path, cells defined by the plurality of partition walls, a first fluid comprised in the cells, a second fluid arranged on the first fluid, a first electrode arranged on at least one side surface of each of the partition walls, and a second electrode disposed to be separate from the partition walls. A shape of shape of an interface between the first fluid and the second fluid changes based on a voltage that is applied to the first electrode and the second electrode. 1. An electrowetting device comprising:a substrate;a plurality of partition walls arrayed on the substrate and having a fluid travel path;cells defined by the plurality of partition walls;a first fluid comprised in the cells; anda second fluid arranged on the first fluid.2. The electrowetting device of claim 1 , wherein the first fluid is a non-conductive fluid claim 1 , and the second fluid is a conductive fluid. This application is a continuation of application Ser. No. 13/278,625, filed on Oct. 21, 2011, which claims the benefit of Korean Patent Application No. 10-2010-0103683, filed on Oct. 22, 2010, in the Korean Intellectual Property Office, the entire disclosures of which are incorporated herein by reference for all purposes.1. FieldThe following description relates to a changeable liquid lens array, and additionally, a lens array in which an interface between fluids changes in response to a voltage applied thereto, and a method of manufacturing the changeable liquid lens array.2. Description of the Related ArtElectro-wetting includes coating a hydrophobic insulating material on an electrode, contacting a conductive fluid and a non-conductive fluid, and controlling a surface tension of the conductive fluid by applying a voltage to the conductive fluid, so that a contact angle of the conductive ...

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Номер записи: 94
16-01-2014 дата публикации

Fluid Lenses, Lens Blanks, and Methods of Manufacturing the Same

Номер: US20140016087A1
Автор: Gupta Amitava, SCHNELL Urban
Принадлежит:

A lens blank for a fluid lens includes a rigid lens and a semi-flexible inflatable membrane attached to the rigid lens. The lens blank is divided into a cavity zone and a bonded zone. The cavity zone extends radially outward from a central area of the lens blank and a cavity is formed between the membrane and the rigid lens within the cavity zone. The bonded zone extends radially outward from the cavity zone and the membrane is bonded and fluidly sealed to the rigid lens throughout the bonded zone. The bonded zone is dimensioned to be trimmed to accommodate a plurality of frame shapes and sizes. Methods of manufacturing lens blanks are also provided. Arrays of lens blanks and fluid lenses are also provided. 1. A lens blank for a fluid lens , the lens blank comprising:a rigid lens; anda semi-flexible inflatable membrane attached to the rigid lens, a cavity zone extending radially outward from a central area of the lens blank, forming a cavity between the membrane and the rigid lens in the cavity zone, and', 'a bonded zone extending radially outward from the cavity zone, wherein the membrane is bonded and fluidly sealed to the rigid lens throughout the bonded zone,, 'wherein the lens blank is divided into at least two zones, the zones comprisingwherein the bonded zone is dimensioned to be trimmed to accommodate a plurality of frame shapes and sizes.2. The lens blank of claim 1 , wherein the plurality of frame shapes and sizes includes every frame shape and size ranging in width from about 20 mm to about 60 mm and ranging in height from about 10 mm to about 30 mm.3. The lens blank of claim 1 , wherein the lens blank is divided into at least three zones claim 1 , the third zone comprising:an outer zone extending radially outward from a peripheral edge of the membrane to a peripheral edge of the rigid lens.4. The lens blank of claim 1 , wherein the membrane is sealed directly to the rigid lens.5. The lens blank of claim 1 ,wherein the cavity zone is sub-divided into an ...

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Номер записи: 95
16-01-2014 дата публикации

PROGRESSIVE OPHTHALMIC LENS

Номер: US20140016088A1
Автор: De Rossi Helene, Guillot Matthieu, MOINE Jérôme, Reco Carlos
Принадлежит: Essilor International (Compagnie Generale D'Optique)

Disclosed is a progressive ophthalmic lens including a front surface and a rear surface, each surface having in each point an altitude, a mean sphere value and a cylinder value, the front surface of the lens including: —a far vision zone having a far vision reference point; —a near vision zone having a near vision reference point; —a main meridian, wherein the front surface is regressive and has: —a sphere gradient normalized value of less than 7.50·10mmat any point in a central portion of the lens including a portion of the main meridian (), the far vision reference point (FV) and the near vision reference point (NV); —a cylinder gradient normalized value of less than 1.45 mmat any point in the central portion of the lens. 116-. (canceled)1816. The progressive ophthalmic lens according to claim , at least one surface comprising two micro-markings and a central point located at the center of a segment linking the two micro-markings , wherein the central portion of the lens is a circle of 40 mm diameter centered on the central point.21. The semi-finished spectacle lens blank of claim 19 , the blank having markings defining a position of a central point of the blank claim 19 , wherein the central portion of the blank is a circle of 40 mm diameter centered on the central point.22. A method for manufacturing semi-finished lens blank claim 19 , comprising the steps of:defining a first surface and a second unfinished surface, the first surface having in each point an altitude, a mean sphere value and a cylinder value;defining a far vision zone having a far vision reference point, a near vision zone having a near vision reference point, a main meridian and a central portion of the first surface including a portion of the main meridian, the far vision reference point and the near vision reference point; a regression of the mean sphere value between at least a portion of the far vision zone and at least a portion of the near visions zone; and', {'sup': −1', '−1, 'a sphere ...

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Номер записи: 96
16-01-2014 дата публикации

Variable Focus Liquid Filled Lens Apparatus

Номер: US20140016089A1
Автор: Gupta Amitava, HAROUD Karim, SCHNELL Urban
Принадлежит: Adlens Beacon, Inc.

A variable focus optical apparatus including a rigid, curved, transparent optical component; two transparent, distensible membranes attached to a periphery of the rigid optical component to define two cavities, a first cavity between the rigid optical component and a first membrane and a second cavity between the first membrane and a second membrane; and a variable amount of fluid filling each of the cavities, and a reservoir Containing additional fluid and in fluid communication with the cavity, wherein the reservoir is configured to provide injection of fluid into the cavity or withdrawal of fluid out of the cavity in response to a force or an impulse. 116-. (canceled)17. A variable focus optical apparatus , comprising:a rigid, curved, transparent optical component having a front surface and a back surface;two transparent, distensible membranes attached to a periphery of the rigid optical component to define two cavities, a first cavity between the rigid optical component and a first membrane and a second cavity between the first membrane and a second membrane;a variable amount of fluid filling each of the cavities;a first reservoir containing additional fluid and in fluid communication with at least one of the cavities, wherein the first reservoir is configured to provide injection of fluid into the at least one cavity or withdrawal of fluid out of the at least one cavity in response to a force or an impulse; anda second reservoir containing additional fluid and in fluid communication with at least one of the cavities, wherein the second reservoir is configured to provide injection of fluid into the at least one cavity or withdrawal of fluid out of the at least one cavity in response to a force or an impulse.18. The variable focus optical apparatus of claim 17 , further comprising a first communication channel providing fluid communication between the first reservoir and one or more of the cavities.19. The variable focus optical apparatus of claim 18 , further ...

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Номер записи: 97
16-01-2014 дата публикации

MICRO-FLUIDIC VARIABLE OPTICAL DEVICE ARRAY AND METHOD OF MANUFACTURING THE SAME

Номер: US20140016175A1
Автор: Bae Jung-mok, CHOI Seung-yul, Choi Yoon-sun, Kim Eok-su, KWON Yong-joo, LEE Jung-Hoon
Принадлежит:

A variable optical device array includes: a transparent substrate; an addressing layer including an electrode wire arranged on the transparent substrate; a barrier wall portion disposed on the addressing layer to define cell regions and including conductive barrier walls that are electrically connected to the electrode wire, wherein pairs of the conductive barrier walls are arranged to form double walls; an insulation material filling a region between each pair of conductive barrier walls; a conductive first fluid and a nonconductive second fluid disposed in each of the cell regions, wherein the first and second fluids are not mixed; an insulation coating layer disposed on a top surface of each of the conductive barrier walls and on side surfaces of each of the cell regions; a transparent electrode layer covering the cell regions; and a voltage applying unit to apply a voltage between the transparent electrode layer and the addressing layer. 1. A variable optical device array comprising:a transparent substrate;an addressing layer disposed on the transparent substrate and comprising an electrode wire arranged in a predetermined pattern;a barrier wall portion disposed on the addressing layer to define a plurality of cell regions and comprising a plurality of conductive barrier walls that are electrically connected to the electrode wire, wherein pairs of the plurality of conductive barrier walls are arranged to form double walls surrounding cell regions;an insulation material filling a region between each pair of conductive barrier walls forming the double walls;a conductive first fluid and a nonconductive second fluid disposed in each of the plurality of cell regions, wherein the first and second fluids are not mixed;an insulation coating layer disposed on a top surface of each of the plurality of conductive barrier walls and on side surfaces of each of the plurality of cell regions;a transparent electrode layer covering the plurality of cell regions; anda voltage ...

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Номер записи: 98
16-01-2014 дата публикации

HYDROPHOBIC DIELECTRIC FILM FOR ELECTROWETTING

Номер: US20140016176A1
Автор: Kanemura Takashi, Kodani Tetsuhiro, Komatsu Nobuyuki, Kou Meiten, Yokotani Kouji
Принадлежит: DAIKIN INDUSTRIES, LTD.

A hydrophobic dielectric film for electrowetting, which can drive a conductive liquid by using a low voltage and containing a vinylidene fluoride based polymer. 1. A hydrophobic dielectric film for electrowetting , comprising a vinylidene fluoride based polymer.2. The hydrophobic dielectric film for electrowetting according to claim 1 , wherein the vinylidene fluoride polymer is a vinylidene fluoride/tetrafluoroethylene based copolymer.3. The hydrophobic dielectric film for electrowetting according to claim 1 , further comprising high-dielectric inorganic particles.4. The hydrophobic dielectric film for electrowetting claim 1 ,wherein the high-dielectric inorganic particles are particles of at least one type of metal oxide selected from the group consisting of [{'br': None, 'sup': a', 'b, 'sub': na', 'nb', 'nc, 'MMO,'}, 'wherein', {'sup': 'a', 'Mis a metal element of Group 2 of the periodic table,'}, {'sup': 'b', 'Mis a metal element of Group 4 of the periodic table,'}, 'na is 0.9 to 1.1,', 'nb is 0.9 to 1.1, and', 'nc is 2.8 to 3.2; and, 'metal oxides represented by Formula (Ba) [{'br': None, 'sup': a', 'b′, 'sub': na', 'nb′', 'nc, 'MMO,'}, 'wherein', {'sup': 'a', 'Mis a metal element in Group 2 of the periodic table,'}, {'sup': 'b′', 'M is a metal element in Group 5 of the periodic table,'}, 'na is 0.9 to 1.1,', "nb' is 0.9 to 1.1, and", 'nc is 2.8 to 3.2., 'metal oxides represented by Formula (Bb)5. The hydrophobic dielectric film for electrowetting according to claim 4 , wherein the metal oxide is barium titanate.6. The hydrophobic dielectric film for electrowetting claim 3 , wherein the hydrophobic dielectric film comprises the high-dielectric inorganic particles in an amount of 10 to 100 parts by mass per 100 parts by mass of the vinylidene fluoride based polymer.7. An electrowetting device comprising:a first electrode;a second electrode;a conductive liquid movably disposed between the first electrode and the second electrode; and{'claim-ref': {'@idref': 'CLM- ...

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Номер записи: 99
16-01-2014 дата публикации

Bistable Electrowetting Picture Element

Номер: US20140016178A1
Автор: Rosser Roy
Принадлежит:

A bistable electrowetting picture element that has both stable “On” and “Off” states in which no power is consumed, and a switching voltage threshold is disclosed. Displays using such picture elements may be either passive or active matrix addressed. A picture element contains two immiscible, fluids within a space between two surfaces. One of the fluids is an electro-conductive, polar liquid, such as to water. The other fluid is a non-polar liquid such as silicone oil. The picture element is electrically switchable between two states, both of which are maintained without a voltage being applied. In one state the light absorbing, non-polar liquid adjoins a region of one of the surfaces, while in the second state it adjoins another region on the other surface. The region adjoined to in the second state differs in area from the region adjoined to in the first state, thereby providing “On” and “Off” states. 1. A bistable , electrowetting picture element , comprising:a first fluid and a second fluid, immiscible with each other, contained within a space between a first surface and a confronting, non-contiguous second surface;said second fluid being electro-conductive or polar;said picture element being electrically switchable between a first state maintainable without a voltage being applied and a second state maintainable without a voltage being applied, and in which in said first state said first fluid adjoins a first region of said first surface, while in said second state said first fluid adjoins a second region of said second surface, and wherein said first region differs in area from said second region.2. A method of modulating light , comprising: a first fluid and a second fluid, immiscible with each other, contained within a space between a first surface and a confronting, non-contiguous second surface;', 'said second fluid being electro-conductive or polar;, 'providing a bistable, electrowetting picture element comprisingelectrically switching said picture ...

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