Utilizing Plasma, Electric, Electromagnetic, Particulate, Or Wave Energy Patents (Class 264/1.36)
  • Patent number: 10328612
    Abstract: A method for cleaning a molding surface (51) of a reusable lens mold (5), in particular of a reusable lens mold (5) for molding ophthalmic lenses such as soft contact lenses, comprising the steps of: generating a jet (3) of deionized water, exposing the molding surface (51) of the reusable lens mold (5) to the jet (3) of deionized water, wherein the jet (3) of deionized water has a circular full cone spray pattern and impinges on the molding surface (51) of the reusable lens mold (5), and wherein the circular full cone spray pattern has a uniform distribution of the volume flow of deionized water over the base of the cone of the circular full cone spray pattern.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: June 25, 2019
    Assignee: NOVARTIS AG
    Inventor: Halina Heidrich
  • Patent number: 10324353
    Abstract: An electrophoretic device (101) comprises a first electrode (60) and a second electrode (60) spaced apart from the first electrode (60). An electrophoretic cell (809) containing an electrophoretic ink (830) and one or more optically-transparent, non-planar, solid polymer elements (808) is located between the electrodes (60). The ink (830) includes charged particles (11) of at least one type suspended in an optically-transparent suspending fluid (820). The refractive indices of the solid polymer elements (808) and the suspending fluid (820) are matched to have a difference of less than 0.0075, and for half or more of the operating temperature range of the device (0° C.-70° C.), the thermo-optic coefficients (temperature coefficient of refractive index per Kelvin) of the solid polymer elements (808) and the suspending fluid (820) are matched to have an arithmetic-mean difference of less than 0.0002/K in magnitude.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: June 18, 2019
    Assignees: Vlyte Innovations Limited, Vlyte Limited
    Inventor: Donal O'Keeffe
  • Patent number: 10288909
    Abstract: Embodiments of the disclosure relate to a low-power, high-data-rate, radio transceiver inside a contact lens. The radio transceiver includes a phase-locked loop having a frequency acquisition loop that turns on and off based on various performance characteristics of the transceiver. The transceiver also includes wireless power harvesting circuitry that receives a wireless power signal and generates a reference signal that is used by an oscillator within the transceiver.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: May 14, 2019
    Assignee: SPY EYE, LLC
    Inventor: Shadi Youssef
  • Patent number: 10268082
    Abstract: A display panel and a method of manufacturing the same, and a display device. The display panel includes: a first substrate and a second substrate disposed opposite to each other; a liquid crystal layer between the first substrate and the second substrate; a sealant provided on a periphery of the first substrate and the second substrate for bonding the first substrate and the second substrate; and a first alignment mark disposed on the first substrate and a second alignment mark disposed on the second substrate; the second alignment mark is provided on a side, adjacent to the liquid crystal layer, of the sealant, and the first alignment mark and the second alignment mark match in a plan view direction according to their preset shapes. By providing a first alignment mark and a second alignment mark, the accuracy of the two substrates can be improved effectively, and the application accuracy of the sealant can be further improved.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: April 23, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTONICS TECHNOLOGY CO., LTD.
    Inventor: Feng Yu
  • Patent number: 10239266
    Abstract: Apparatus and methods are described for manufacturing contact lenses employing dissolvable mold structure. The apparatus and methods involve approaches to dissolve at least portions of a mold and to separate a lens from the mold to present the lens for collection.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: March 26, 2019
    Assignee: CooperVision International Holding Company, LP
    Inventors: Robert Oag, David Robert Morsley, Jaroslaw W. Orlik, Gregg A. Dean
  • Patent number: 10126567
    Abstract: This invention discloses apparatus for generating an ophthalmic lens with at least a portion of one surface free-formed from a Reactive Mixture. In some embodiments, an ophthalmic lens is formed on a substrate with an arcuate optical quality surface via a source of actinic radiation controllable to cure a definable portion of a volume of Reactive Mixture.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 13, 2018
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Michael F Widman, John B Enns, P. Mark Powell, Peter W Sites
  • Patent number: 10099438
    Abstract: An apparatus for molding a lens for a vehicle lamp may include: a lower mold including a first lower mold part for molding a primary injection-molded product and a second lower mold part for molding a secondary injection-molded product; a rotating mold including a first middle mold part for molding the middle part of the primary injection-molded product and a second middle mold part for molding the middle part of the secondary injection-molded product; a first movement prevention stopper fixing the primary injection-molded product; a second movement prevention stopper fixing the primary injection-molded product; a movement/rotation device moving the rotating mold and rotating the rotating mold; and an upper mold including a first upper mold part for molding the upper part of the primary injection-molded product and a second upper mold part for molding the upper part of the secondary injection-molded product.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: October 16, 2018
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Jin Woo Bae
  • Patent number: 10094960
    Abstract: The present application generally relates to retroreflective articles and methods of making retroreflective articles. Some embodiments include a body layer having an elastic modulus of equal to or greater than 1750 MPa, a plurality of truncated cube corner elements, and a polymeric layer between the body layer and the cube corner elements, the polymeric layer having an elastic modulus of less than 1750 MPa.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: October 9, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Reema Chatterjee, Jeffrey A. Peterson, Christopher P. Gerlach, David W. Meitz
  • Patent number: 10040219
    Abstract: According to one embodiment, a mold includes a base, a first concave pattern, a second concave pattern, and a third concave pattern. The base includes a first surface and a pedestal projecting from the first surface. The pedestal includes a first region and a second region disposed outside the first region. The first concave pattern is formed in the first region. The second concave pattern is formed in the second region. The third concave pattern extends from the first region to the second region.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: August 7, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Yoko Takekawa, Ryouichi Inanami, Masafumi Asano, Kazuhiro Takahata, Sachiko Kobayashi, Shigeki Nojima, Yohko Furutono, Masato Suzuki, Kenji Konomi
  • Patent number: 9971074
    Abstract: The present application generally relates to retroreflective articles and methods of making retroreflective articles. The retroreflective articles include a substantially amorphous polymeric layer between the body layer and the discrete truncated cube corner elements. The substantially amorphous polymeric layer absorbs, dissipates, and/or accommodates at least some of the stress forces placed on the retroreflective article during processing. As a result, discrete truncated cube corner elements with increased fidelity can be formed. Consequently, retroreflective sheeting including a substantially amorphous polymeric layer has increased brightness compared to similarly made and composed sheeting lacking the substantially amorphous polymeric layer.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: May 15, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Reema Chatterjee, Stephen A. Johnson, Robert F. Watkins, Bimal V. Thakkar
  • Patent number: 9952504
    Abstract: An imprint method for transferring a pattern to an imprint material supplied to a plurality of shot areas on a substrate using a mold includes removing a foreign matter attached to a pattern of the mold in such a manner that the plurality of shot areas includes a part shot-area where a part of pattern of the mold can be formed and the mold is brought into contact with an imprint material supplied to the part shot-area to transfer the pattern of the mold to the substrate and transferring a pattern to the shot area excluding the part shot-area, among the plurality of shot areas, using the mold used in the removing the foreign matter.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: April 24, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshikazu Miyajima, Yukio Takabayashi, Shinichi Shudo
  • Patent number: 9919487
    Abstract: A mandrel (300) for holding an intraocular lens blank (200) during manufacturing includes an intraocular lens holding section configured to hold an intraocular lens, the intraocular lens holding section including: a central cavity (310) configured to hold a mounting material (315) such that the mounting material contacts an optic of the intraocular lens blank when the intraocular lens blank is mounted on the mandrel, and a projection (325) extending around a periphery of the central cavity, the projection having an outer wall (330) and an inner wall (335), and the projection being configured such that an outer peripheral edge of the intraocular lens blank extends up to or beyond the projection when the intraocular lens blank is mounted on the mandrel. A second mounting material (320) is deposited in the first trench (340) and then the haptic is milled using e.g. an end mill (365).
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: March 20, 2018
    Assignee: Benz Research and Development Corporation
    Inventors: Patrick H. Benz, Andrew Larson
  • Patent number: 9857607
    Abstract: This invention discloses apparatus for generating an ophthalmic lens with at least a portion of one surface free-formed from a Reactive Mixture. In some embodiments, an ophthalmic lens is formed on a substrate with an arcuate optical quality surface via a source of actinic radiation controllable to cure a definable portion of a volume of Reactive Mixture.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: January 2, 2018
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Michael F Widman, John B Enns, P. Mark Powell, Peter W Sites
  • Patent number: 9851385
    Abstract: A method for determining the presence of an electrical charge on a surface of an ophthalmic lens mold including the steps of exposing a sensor crystal of a sensor element to a surface of an ophthalmic lens mold on which an electrical charge generating an electrical field may be present, converting a light beam emitted from a laser light source into a linearly polarized measurement light beam by passing the light beam through the sensor element, processing the linearly polarized measurement light beam exiting the sensor element in a measurement unit, wherein the sensor crystal is selected from a non-centrosymmetrical crystallographic point group 43 m.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: December 26, 2017
    Assignee: Novartis AG
    Inventor: Rene Ochrombel
  • Patent number: 9643345
    Abstract: A lens molding apparatus (100) of the present invention includes: a mold (1) having a transfer surface (1a) for transferring a predetermined lens shape to a resin material; a mold (2) having a transfer surface (2a) for transferring a predetermined lens shape to the resin material; a support device (3) for moving the mold (1); a heating device (4) curing the resin material so as to form a lens, the resin material having been supplied between the transfer surface (1a) and the transfer surface (2a); and an ultrasonic vibrator (5) applying vibration from a side surface of the mold (1 or 2) so as to form a gap at least at a part between the transfer surface (1a or 2a) and the lens.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: May 9, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro Nakahashi, Hiroyuki Hanato
  • Patent number: 9610742
    Abstract: This invention discloses apparatus for generating an ophthalmic lens with at least a portion of one surface free-formed from a Reactive Mixture. In some embodiments, an ophthalmic lens is formed on a substrate with an arcuate optical quality surface via a source of actinic radiation controllable to cure a definable portion of a volume of Reactive Mixture.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: April 4, 2017
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Michael F Widman, John B Enns, I, P Mark Powell, Peter W Sites
  • Patent number: 9370879
    Abstract: A lens molding apparatus of the present invention includes: a mold having a transfer surface for transferring a predetermined lens shape to a dielectric resin; a mold having a transfer surface for transferring a predetermined lens shape to the dielectric resin; a support device moving the mold; a heating device heating the dielectric resin so as to form a resin molded product, the dielectric resin having been supplied on the transfer surface; a DC power source forming an electric field by application of direct-current voltage between the mold and the mold; and switches switching a direction of the electric field between a direction from the mold to the mold and a direction from the mold to the mold.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: June 21, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro Nakahashi, Hiroyuki Hanato
  • Patent number: 9358706
    Abstract: A process for manufacturing a headlight lens for a vehicle headlight, wherein a blank is molded from transparent plastic material by means of an injection molding process, and wherein the blank is subsequently blank-molded by means of a final contour mold to form the headlight lens.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: June 7, 2016
    Assignee: Docter Optics SE
    Inventors: Peter Mühle, Alois Willke, Hagen Goldammer, Volker Schöppner, Christian Leister
  • Patent number: 9346226
    Abstract: This invention discloses apparatus for processing one or more of a Lens Precursor, a Lens Precursor Form and an ophthalmic Lens. The apparatus provides for vapor phase processing of the subject Lens Precursor, a Lens Precursor Form and an ophthalmic Lens.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 24, 2016
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: John B Enns, Michael F Widman, I, Joe M Wood, P. Mark Powell, Ture Kindt-Larsen
  • Patent number: 9296158
    Abstract: This invention discloses methods and apparatus for providing an ophthalmic lens with an energy source incorporated therein.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: March 29, 2016
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Randall B. Pugh, Daniel B. Otts, Frederick A. Flitsch
  • Patent number: 9287492
    Abstract: A piezoelectric polymer element such as a fiber or film is described, having a solid cross-section and a substantially homogeneous composition. A method of forming such a piezoelectric polymer element is also described. The method has the steps of extruding a polymer material and concurrently poling a region of the extruded material. Apparatus for forming such a piezoelectric polymer element is also described that comprises an extruder for extruding a polymer element from a granular feed and a pair of electrodes for applying an electric field across a region of the element concurrently with its extrusion. Also described is a piezoelectric construct having such piezoelectric polymer elements interposed between two conductive layers. A system for converting mechanical energy into electrical energy is described in which each of the piezoelectric construct's two conductive layers is connected to a respective terminal of a rectifying circuit.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: March 15, 2016
    Assignee: University of Bolton
    Inventors: Elias Siores, Magundappa L. (Ravi) Hadimani
  • Patent number: 9272449
    Abstract: An exemplary method for making a lens array requires an imprinting mold and a substrate. A blob of molding material is applied on each molding section of the substrate. First alignment marks, and second alignment mark of the imprinting mold aligned with third and fourth alignment marks on each one of the imprinting regions, respectively. The imprinting mold is pressed on the molding material on the imprinting region. The pressed portions of the imprinting region are solidified to obtain lenses in the imprinting region. The imprinting mold is pressed on another one of the imprinting region, and the imprinting mold is removed. This process is repeated for each other imprinting region. Thus, a large-scale lens array is obtained.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: March 1, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Tai-Cherng Yu
  • Patent number: 9180634
    Abstract: This invention discloses methods for generating one or both of an ophthalmic lens precursor with at least a portion of one surface free-formed from a Reactive Mixture. In some embodiments, an ophthalmic lens precursor is formed on a substrate with an arcuate optical quality surface via a source of actinic radiation controllable to cure a definable portion of a volume of Reactive Mixture.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: November 10, 2015
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Michael F. Widman, John B. Enns, P. Mark Powell, Peter W. Sites
  • Patent number: 9173463
    Abstract: Disclosed is a stack of individually separable packages for a plurality of contact lenses, each individual lens being packaged between a first surface and a second surface, wherein the first surface is provided by a first one of the individually separable packages and the second surface is provided by a second one of the individually separable packages.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: November 3, 2015
    Assignee: CONTACT LENS PRECISION LABORATORIES LTD.
    Inventors: John Clamp, Richard Newell
  • Patent number: 9176332
    Abstract: Contact lenses and methods of manufacture are provided. A contact lens can include: an electronics substrate having components formed thereon and disposed within a contact lens forming (CLF) polymer, wherein a first one of the components is positioned at a first region of the electronics substrate and a second one of the components is positioned at a second region of the electronics substrate, the second region being opposite the first region; and a plurality of CLF polymer layers molded such that the plurality of CLF polymer layers has a first thickness in a region of the electronics substrate associated with the first one of the components and has a second thickness in a region of the electronics substrate associated with the second one of the components.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: November 3, 2015
    Assignee: Google Inc.
    Inventors: James Etzkorn, Jeffrey George Linhardt
  • Patent number: 9138142
    Abstract: An ophthalmic device that includes a mask configured to be implanted posterior of the cornea. The mask is configured to increase the depth of focus of the patient. The mask includes an aperture configured to transmit along an optical axis substantially all incident light and a substantially opaque portion surrounding at least a portion of the aperture. The ophthalmic device can further include a plurality of light transmission structures configured to allow some light to pass through the substantially opaque portion. The light transmission structures are configured to minimize generation of visible artifacts due to the transmission of light through the light transmission structures.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: September 22, 2015
    Assignee: AcuFocus, Inc.
    Inventors: Bruce A. Christie, Thomas A. Silvestrini, Kevin F. Hahnen
  • Patent number: 9096025
    Abstract: The invention provides a silicone hydrogel contact lens including a hydrolyzable polymer. The hydrolyzable polymer can be converted by hydrolysis into a hydrophilic polymer which is capable of imparting the silicone hydrogel contact lens a hydrophilic surface without post-curing surface treatment.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: August 4, 2015
    Assignee: Novartis AG
    Inventor: Yongxing Qiu
  • Publication number: 20150145155
    Abstract: The present invention provides methods for forming an ophthalmic lens that can include a media insert and/or electronic components. In particular, the present disclosure provides for adhesion promoting functionalization steps for a biocompatible coating to bind a hydrogel material to a plastic surface or electronic component prior to the polymerization of the hydrogel. In some aspects, the media insert can be used to contain energy sources and/or functional electronic components which may be, for example, in a stacked integrated component configuration to permit a generally arcuate shape that can conform to the anterior surface of an eye.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 28, 2015
    Applicant: Johnson & Johnson Vision Care, Inc.
    Inventors: Randall Braxton Pugh, Karson Putt, Michael Ferran, Katherine Rowan Hardy, Daniel B. Otts
  • Publication number: 20150115484
    Abstract: Disclosed in this specification is a process for manufacturing a thermochromic contact lens. The process includes (1) selecting a photoinitiator that absorbs at a first wavelength and at least one thermochromic dye that displays substantial absorption at the first wavelength when the dye is at a first temperature and exhibits at least an 80% reduction in absorbance at the first wavelength at a second temperature, (2) maintaining the reaction mixture at the second temperature and (3) providing cure light that includes the first wavelength.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 30, 2015
    Inventors: Donnie J. Duis, Nayiby Alvarez-Carrigan, Holly L. Grammer, Ture Kindt-Larsen, Frank F. Molock, JR., Jaqunda Patton, Kim Sander Pedersen, Eric R. George
  • Publication number: 20150115485
    Abstract: The invention provides a method for producing ophthalmic lenses, preferably contact lenses, more preferably silicone hydrogel contact lenses. This method involves applying a coat of catanionic vesicles onto the molding surfaces of a mold. By having a coat of catanionic vesicles on the molding surfaces of a mold, mold separation force and lens defects generated during mold opening and de-molding process can be substantially reduced.
    Type: Application
    Filed: October 30, 2014
    Publication date: April 30, 2015
    Inventors: Horngyih Huang, Honghui Lu
  • Publication number: 20150102325
    Abstract: An optical sheet includes a transparent substrate. The optical sheet further includes light-scattering elements randomly and nonperiodically distributed in the transparent substrate. Each light-scattering element of the light scattering elements includes a binding-material member and light-scattering particles dispersed in the binding-material member. A weight percent calculated from dividing a total weight of light-scattering particles of the light-scattering elements by a total weight of the light-scattering elements is in a range of 5 wt % to 40 wt %.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 16, 2015
    Inventors: Jae-Ik LIM, Won-Sang PARK
  • Publication number: 20150085496
    Abstract: An optical film has a plurality of aligned convex microlenses, each of which has a region ? and a region ?, region ? forming the outer part of the convex shape of the microlens and positioned so as to cover region ?. Both region ? and region ? contain a resin, and the refractive index of the resin in region ? is higher than the refractive index of the resin in region ?; region ? contains fine particles, and region ? contains fine particles, and the content of the fine particles contained in region ? is lower than the content of the fine particles contained in region ?; or region ? contains fine particles, and region ? contains fine particles, and the content of the fine particles contained in region ? is higher than the content of the fine particles contained in region ?.
    Type: Application
    Filed: November 14, 2012
    Publication date: March 26, 2015
    Applicant: Mitsubishi Rayon Co., Ltd
    Inventor: Daichi Okuno
  • Publication number: 20150077670
    Abstract: Disclosed are a switching lens and a method for manufacturing the same. The switching lens having liquid crystals of highly uniform orientation can be obtained by minimizing the thickness deviation of an alignment film formed on the whole curvature surface of a lenticular pattern. The switching lens of the present invention comprises a resin layer having a lenticular pattern and an alignment film on the resin layer. The alignment film covers the whole curvature surface of the lenticular pattern and has the maximum thickness equal to or less than 0.01 times the maximum radius of curvature of the lenticular pattern.
    Type: Application
    Filed: June 10, 2013
    Publication date: March 19, 2015
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Young Kyo Son, Heon Seung Chae, Dong Hee Lee
  • Publication number: 20150061280
    Abstract: An optical security device (10; 700) is provided which includes a transparent or translucent substrate (15; 705), at least one first array of repeating elements (20; 720) in or on a first side (16; 706) of the substrate (15; 705), at least one second array of repeating elements (30; 730) on a second side of the substrate. The second array of repeating elements (20; 720) is substantially in register with the first array of elements (30; 730), whereby a first image (130; 725) is visible when viewing the device from the first side, and a second image (200; 735) is visible when viewing the device from the second side. The brightness or colour levels of repeating image elements (30; 720, 730) on at least one side of the substrate may be modulated region-wise to produce a greyscale or coloured image.
    Type: Application
    Filed: October 17, 2012
    Publication date: March 5, 2015
    Applicant: INNOVIA SECURITY PTY LTD
    Inventor: Gary Fairless Power
  • Patent number: 8969752
    Abstract: The present invention provides a laser processing method comprising the steps of attaching a protective tape 25 to a front face 3 of a wafer 1a, irradiating a substrate 15 with laser light L while employing a rear face of the wafer 1a as a laser light entrance surface and locating a light-converging point P within the substrate 15 so as to form a molten processed region 13 due to multiphoton absorption, causing the molten processed region 13 to form a cutting start region 8 inside by a predetermined distance from the laser light entrance surface along a line 5 along which the object is intended to be cut in the wafer 1a, attaching an expandable tape 23 to the rear face 21 of the wafer 1a, and expanding the expandable tape 23 so as to separate a plurality of chip parts 24 produced upon cutting the wafer 1a from the cutting start region 8 acting as a start point from each other.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: March 3, 2015
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Kenshi Fukumitsu, Fumitsugu Fukuyo, Naoki Uchiyama
  • Patent number: 8945439
    Abstract: A method for manufacturing a lens having a refractive index distribution includes: a step of contacting a monomer with a structural member of a polymer, the monomer and a material obtained by polymerization of the monomer showing refractive indices which are different from the refractive index of the polymer; a step of diffusing the contacted monomer in the structural member; and a step of polymerizing the monomer. In the step of diffusing the contacted monomer in the structural member, the method further includes the steps of: irradiating light on at least 50% of one of the surfaces of the structural member which is parallel to the diffusion direction of the monomer, and measuring the intensity of the light passing through the structural member in a predetermined region, and when the measured intensity of the light reaches a predetermined value, the step of polymerizing the monomer is started.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: February 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichi Akashi, Toshiki Ito
  • Patent number: 8945440
    Abstract: A method of determining conditioning pulse parameters for an optical element includes directing a pump pulse to impinge on the optical element and directing a probe pulse to impinge on the optical element. The method also includes determining a first time associated with an onset of electronic excitation leading to formation of an absorbing region of the optical element and determining a second time associated with expansion of the absorbing region of the optical element. The method further includes defining a turn-off time for a conditioning pulse between the first time and the second time. According to embodiments of the present invention, pulse shaping of the conditioning pulse enables laser conditioning of optical elements to achieve improvements in their laser induced damage threshold.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: February 3, 2015
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Stavros G. Demos, Rajesh Raman, Raluca A. Negres
  • Patent number: 8940200
    Abstract: A method for manufacturing a light guide plate, such as a sign or guide display board, that guides light incoming from a side surface of a substrate thereof and guides the light outgoing from a major surface thereof. The method includes arranging fabrication dots in a matrix shape at a rectangular distal surface of a ultrasonic fabrication horn, forming, on a major surface of the light guide plate substrate, reflection dots corresponding to the fabrication dots on the distal surface upon pressing the distal surface of the ultrasonic fabrication horn to the major surface of the light guide plate substrate, and forming the reflection dots in a prescribed range on the major surface of the light guide plate substrate by repeating formation of the reflection dot upon correlative movement of the ultrasonic fabrication horn within the major surface with respect to the light guide plate substrate.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: January 27, 2015
    Assignee: S. K. G. Co., Ltd.
    Inventors: Mitsuhide Sakamoto, Tatsuya Inaba, Noboru Iwanaga
  • Publication number: 20150015973
    Abstract: A compound lens produced by heating and pressing a semi-cured product of a curable resin composition containing a (meth)acrylate monomer, a non-conjugated vinylidene group-containing compound, and a photo-radical initiator and a transparent substrate arranged so as to be in contact with the semi-cured product in a state in which a molding die is filled with the semi-cured product and the transparent substrate, and obtaining a cured product by allowing the semi-cured product to be thermally polymerized, exhibits an excellent transfer property, a small number of bubble mixtures, and excellent heat resistance and crack resistance.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 15, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Takayasu NAGAI, Naoyuki MOROOKA, Tatsuhiko OBAYASHI
  • Publication number: 20150015961
    Abstract: This is a mold repairing method for removing a resin material deposited on a mold, of which the surface is a porous film with a plurality of recesses that have been created through anodization. The mold repairing method includes the steps of: (I) removing the resin material that is exposed on the surface of the mold over the plurality of recesses without performing atmospheric pressure plasma processing; and (II) removing at least partially the resin material that is still left inside the plurality of recesses by the atmospheric pressure plasma processing, after the step (I) has been performed, thereby recovering the original function of the mold.
    Type: Application
    Filed: February 7, 2013
    Publication date: January 15, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Hidekazu Hayashi
  • Publication number: 20150015957
    Abstract: The present invention has an object of providing a diffraction grating excellent in surface precision and allowing its miniaturization and weight reduction and a method for manufacturing the same. The present invention comprises: a glass substrate having a thickness of 0.5 mm to 8 mm; a resin-made microstructure body having an unevenness pattern and formed on one surface of the glass substrate; and a flat resin layer formed on the other surface of the glass substrate. Even if the glass substrate has surface precision of ?/2 or greater, the replica of the diffraction grating, in which the microstructure body is not influenced by the surface precision of the glass substrate and which is excellent in surface precision, can be manufactured by the flatness of the resin layer. In addition, since the glass substrate can be made thin, the miniaturization and weight reduction of the diffraction grating can be achieved.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 15, 2015
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Kenji Kawasaki, Masahiko Ogino, Akihiro Miyauchi
  • Patent number: 8932041
    Abstract: A mold structure, a patterning method thereof and a method of fabricating an LCD device using the same are disclosed, which can realize a conformal contact by applying a voltage between a mold structure and a material layer being opposite to each other in an In-Plane Printing process, so as to prevent defective patterns, wherein the mold structure comprises a mold whose surface is provided with patterns; a backplane for supporting the mold; and a conductive film formed between the backplane and the mold.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: January 13, 2015
    Assignee: LG Display Co., Ltd.
    Inventor: Jin Wuk Kim
  • Patent number: 8916335
    Abstract: A photo-curable transfer sheet having a photo-curable transfer layer comprising a photo-curable composition, the photo-curable composition being deformable by application of pressure and containing a reactive polymer having a photopolymerizable functional group, wherein the photo-curable transfer layer shows linearity in relationship between strain [?] (%) and time [t] (second) measured by a creep test using a dynamic viscoelasticity measuring apparatus under the conditions of an ordinary temperature, stress of 50 Pa and a time period of 120 seconds, and satisfies a following formula: log ?=a+b·log t, in which “a” is a real number, and “b” is in the range of 0.10 to 0.53; and a process for the preparation of an optical information recording medium using the sheet and an optical information recording medium.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: December 23, 2014
    Assignee: Bridgestone Corporation
    Inventors: Hideki Kitano, Takato Inamiya, Kenji Murayama, Hidefumi Kotsubo, Yasuhiro Morimura
  • Publication number: 20140346694
    Abstract: A position detection apparatus includes an illumination optical system for illuminating a first diffraction grating having periods in each of a first direction and a second direction different from the first direction, and a second diffraction grating having a period different from the period in the second direction of the first diffraction grating in the second direction, at an oblique incidence, and a detection optical system for detecting diffracted light from the first diffraction grating and the second diffraction grating, wherein a relative position of the first diffraction grating and the second diffraction grating is detected based on the detected diffracted light, and wherein the illumination optical system includes a plurality of light intensity distributions in the first direction except for on an optical axis of the detection optical system, in a pupil plane thereof.
    Type: Application
    Filed: August 12, 2014
    Publication date: November 27, 2014
    Inventors: Ken Minoda, Yoshihiro Shiode, Kazuhiko Mishima, Hironori Maeda
  • Patent number: 8889043
    Abstract: A method for casting a styrenic fluoropolymer film on a substrate includes preparing a polymer solution by dissolving the fluoropolymer in a solvent or solvent blend whose Hansen solubility parameters (HSPs. MPa1/2) satisfy the following relations: |SPb?SPp|<5, |SPb?SPs|<4, |SPb(H)?SPp(H)|<7, and 2<|SPb(H)?SPs(H)|<10 wherein SPb, SPp, SPs, are the total Hansen solubility parameters of solvent/solvent blend, fluoropolymer, and substrate, respectively; SPb(H), SPp(H), and, SPs(H) are the hydrogen-bond Hansen solubility parameters of solvent/solvent blend, fluoropolymer, and substrate, respectively; wherein the fluoropolymer comprises a moiety of: wherein R1, R2, and R3 are each independently hydrogen atoms, alkyl groups, substituted alkyl groups, or halogens, wherein at least one of R1, R2, and R3 is a fluorine atom, and wherein R is each independently a substituent on the styrenic ring, n is an integer from 0 to 5 representing the number of the substituents on the styrenic ring.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: November 18, 2014
    Assignee: Akron Polymer Systems, Inc.
    Inventors: Bin Wang, Thauming Kuo, Douglas Stephens McWilliams, Frank W. Harris, Ted Calvin Germroth, Jiaokai Jing, Dong Zhang, Xiaoliang Zheng
  • Publication number: 20140334005
    Abstract: The present invention provides silk photonic crystals that can be used to enhance light-induced effects. Also disclosed are biocompatible, functionalized, all-protein inverse opals and related methods.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 13, 2014
    Inventors: Fiorenzo Omenetto, David Kaplan, Sunghwan Kim
  • Patent number: 8877103
    Abstract: Disclosed in this specification is a process for manufacturing a thermochromic contact lens. The process includes (1) selecting a photoinitiator that absorbs at a first wavelength and at least one thermochromic dye that displays substantial absorption at the first wavelength when the dye is at a first temperature and exhibits at least an 80% reduction in absorbance at the first wavelength at a second temperature, (2) maintaining the reaction mixture at the second temperature and (3) providing cure light that includes the first wavelength.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: November 4, 2014
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Nayiby Alvarez-Carrigan, Donnie J. Duis, Holly L. Grammer, Ture Kindt-Larsen, Frank F. Molock, Jr., Jaqunda Patton, Kim Sander Pedersen, Eric R. George
  • Publication number: 20140321494
    Abstract: Volumetric Bragg grating devices that operate in middle-infrared region of the spectrum and methods for producing such devices are described. Such a Volumetric Bragg grating device can be produced by forming a plurality of color centers within an alkali-halide or an alkali-earth fluoride crystal and selectively removing a subset of the plurality of color centers to produce variations in refractive index of the alkali-halide or alkali-earth fluoride crystal in the middle-infrared spectral region and to thereby produce a volumetric Bragg grating that operates in middle-infrared spectral range.
    Type: Application
    Filed: July 14, 2014
    Publication date: October 30, 2014
    Inventors: Anitha Arumugam, Dmitry V. Martyshkin, Vladimir V. Fedorov, David J. Hilton, Sergey B. Mirov
  • Publication number: 20140319708
    Abstract: Systems and methods are provided for forming an optical element within a transparent material using an irradiating optical beam, where the irradiating optical beam is employed to induce internal refractive index changes in the transparent substrate. Optical elements such as bulk and gradient index lenses may be formed in the transparent structure according various embodiments of the disclosure. An optical element may be formed by selecting a refractive index profile for the optical element, determining a corresponding suitable spatially dependent irradiation intensity profile for producing the selected refractive index profile, focusing an irradiating optical beam within the transparent structure, and controlling an intensity and position of the focused irradiating optical beam within the transparent structure according to the spatially dependent irradiation intensity profile.
    Type: Application
    Filed: November 13, 2012
    Publication date: October 30, 2014
    Inventors: Amandeep Thind, Mark Harduar, Nigel Munce, Martin Jun
  • Publication number: 20140309328
    Abstract: The present invention relates to polyurethane polymer compositions prepared by reacting a mixture comprising: a) at least one poly(ethylene glycol), b) at least one polyoxyalkylene diol (typically PPG or a copolymer of ethylene oxide and propylene oxide), c) at least one di- or poly-isocyanate, d) at least one polyol or macropolyol having a functionality greater than 2, or a mixture of such polyols or macropolyols having a functionality greater than 2, e) optionally an additional compound comprising at least one hydroxyl group and at least one primary or secondary amine group. The present invention also relates to an article comprising such a polymer, in particular a medical device such as a contact lens. A process for preparing a polyurethane hydrogel is also provided.
    Type: Application
    Filed: April 19, 2012
    Publication date: October 16, 2014
    Applicant: Ocutec Limited
    Inventors: Rashid Abdul, Neil Bonnette Graham, Roderick Bowers, Wade Tipton, John Fraser