Retroreflector (e.g., Light Reflecting Small Spherical Beads, Etc.) Patents (Class 427/163.4)
  • Patent number: 10400130
    Abstract: Provided is an anti-fogging coated transparent article including an anti-fog film, the anti-fog film being a single-layer film containing a water-absorbent resin, a hydrophobic group, and a metal oxide component. The hydrophobic group is a chain or cyclic alkyl group having 1 to 30 carbon atoms, preferably a linear alkyl group having 6 to 14 carbon atoms, in which at least one hydrogen atom is optionally substituted by a fluorine atom. The hydrophobic group is bonded directly to a metal atom of the metal oxide component. The anti-fog film contains, for example, the metal oxide component in an amount of 0.01 to 60 parts by mass and the hydrophobic group in an amount of 0.05 to 10 parts by mass per 100 parts by mass of the water-absorbent resin. The water-absorbent resin is, for example, polyvinyl acetal.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: September 3, 2019
    Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Kazuaki Oya, Kazutaka Kamitani
  • Patent number: 10011733
    Abstract: Provided is an anti-fogging coated transparent article including an anti-fog film, the anti-fog film being a single-layer film containing a water-absorbent resin, a hydrophobic group, and a metal oxide component. The hydrophobic group is a chain or cyclic alkyl group having 1 to 30 carbon atoms, preferably a linear alkyl group having 6 to 14 carbon atoms, in which at least one hydrogen atom is optionally substituted by a fluorine atom. The hydrophobic group is bonded directly to a metal atom of the metal oxide component. The anti-fog film contains, for example, the metal oxide component in an amount of 0.01 to 60 parts by mass and the hydrophobic group in an amount of 0.05 to 10 parts by mass per 100 parts by mass of the water-absorbent resin. The water-absorbent resin is, for example, polyvinyl acetal.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: July 3, 2018
    Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Kazuaki Oya, Kazutaka Kamitani
  • Patent number: 9588263
    Abstract: A display element for viewing a display such as, for example, a display on an electronic device. The display element comprises a transparent substrate and a scattering anti-glare layer located between a front surface and back surface of the display element, wherein the scattering anti-glare layer comprises a plurality of scattering elements. The scattering anti-glare layer has low reflectivity and provides an anti-glare effect for light reflected by interfaces within the display element.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: March 7, 2017
    Assignee: CORNING INCORPORATED
    Inventors: Jacques Gollier, Shandon Dee Hart, Ellen Marie Kosik Williams, Dmitri Vladislavovich Kuksenkov
  • Publication number: 20150126393
    Abstract: The present invention relates to nanocones and nanomaterials. In one embodiment, the present invention provides a method of fabricating an array of nanostructures on a flexible film, comprising self-assembling a layer of particles on a film, and fabricating an array of nanostructures by etching and/or modifying the film. In another embodiment, the present invention provides a microarray comprising a nanomaterial comprising a film configured for an array of one or more nanocones.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 7, 2015
    Applicant: The Regents of the University of California
    Inventors: Robert M. Corn, Mana Toma, Gabriel Loget, Han Wai M. Fung
  • Publication number: 20150109694
    Abstract: A textured reflector for a solar cell of thin film type is produced by deposition of a metal film on a support through openings of a mask. The mask is formed by a thin film formed by coplanar and preferably joined balls, the gaps between the balls forming the openings of the mask. The thin film is further advantageously formed by balls made from silica or from polymer material.
    Type: Application
    Filed: April 9, 2013
    Publication date: April 23, 2015
    Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Cédric Ducros, Helga Szambolics
  • Publication number: 20150047094
    Abstract: Camouflage articles are formed of arrangements of portions of different colors. The lighter colored portions or parts thereof are formed of reflective ink in that particular color. This arrangement provides the article with a camouflage appearance, altering depth perception by animals in daylight, and reflectivity at night for safety.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 19, 2015
    Inventor: Jeffrey L. Lampe
  • Publication number: 20150015955
    Abstract: An exposed lens retroreflective article that includes a binder layer; a layer of spaced apart optical elements that are partially embedded in the binder layer; a penetrated colored layer that is located between the spaced apart optical elements; and a reflective layer that is located functionally behind the layer of optical elements and the penetrated colored layer.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 15, 2015
    Inventors: Ningyong Huang, Shane M. Klundt, Huijin Li, Loretta L. Lucas, Bradley R. Ray, Rong Wu
  • Publication number: 20150009566
    Abstract: The present invention is directed to articles, such as retroreflective sheeting articles that comprise a release coating. Also described are release coatings and hydrophilic components suitable for use in release coatings. The release coatings comprise a polyorganosiloxane polymer and at least 10 or 15 wt-% of hydrophilic units.
    Type: Application
    Filed: February 21, 2013
    Publication date: January 8, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Suresh S. Iyer, Vivek Krishnan, Matthew D. Wilding, Kenton D. Budd, Yu Yang, Sonja S. Mackey
  • Publication number: 20150003042
    Abstract: A conversion element (10) is specified, comprising a scattering layer (12), a reflection layer (14), and a conversion layer (16) arranged between the scattering layer (12) and the reflection layer (14). The scattering layer (12) is designed to transmit a first portion (20) of a primary radiation (18) impinging on it from a side facing away from the conversion layer (16) into the conversion layer (16), and to scatter a second portion (22) of the primary radiation (18) impinging on it towards that side of the scattering layer (12) which faces away from the conversion layer (16). The conversion layer (16) comprises at least one conversion means (25) which is designed to convert at least part of the first portion of the primary radiation (18) into a second radiation (19) having a higher wavelength different from the primary radiation (18). The reflection layer (14) has a reflective effect at least with regard to the second radiation (19).
    Type: Application
    Filed: February 22, 2013
    Publication date: January 1, 2015
    Inventor: Uwe Strauß
  • Patent number: 8913218
    Abstract: The present invention provides a method for forming a reflector and a reflective LCD manufactured with the method. The method for forming reflector includes (1) providing metal powder and gold varnish, the metal powder being one or more than one selected from aluminum powder, copper powder, zinc powder; (2) mixing the metal powder and the gold varnish to form slurry; (3) providing a substrate and coating or printing the slurry on the substrate; and (4) baking the substrate on which the slurry coated or printed at a temperature of 60-80° C. for a period of 3-5 minutes to have the slurry forming a reflector on the substrate. The present invention forms a reflector on a substrate by mixing metal powder and gold varnish together to form slurry so as to improve homogeneity of scattered reflection of light by the reflector so formed.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: December 16, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Hao Kou
  • Patent number: 8854736
    Abstract: An optical body includes a first optical layer having a concave-convex surface, a wavelength selective reflecting layer formed on the concave-convex surface, and a second optical layer formed on the wavelength selective reflecting layer and embedding the concave-convex surface. The wavelength selective reflecting layer selectively directionally reflects light in a particular wavelength band while transmitting light other than the particular wavelength band therethrough. The concave-convex surface is made up of a plurality of triangular pillars arrayed in a one-dimensional pattern, and the triangular pillar has an apex angle ? and a slope angle ?, the apex angle ? and the slope angle ? satisfying a predetermined relationship.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: October 7, 2014
    Assignee: Dexerials Corporation
    Inventors: Hironori Yoshida, Tsutomu Nagahama, Masashi Enomoto
  • Publication number: 20140285890
    Abstract: The present application relates generally to retroreflective sheeting and the tools and methods used to make retroreflective sheeting. Microreplication tools and sheeting include controlled surface structure or haze. The surface structure or haze can be introduced, for example, by chemical etching of the tool surface and/or electroplating.
    Type: Application
    Filed: June 6, 2014
    Publication date: September 25, 2014
    Inventors: KENNETH L. SMITH, JAMES R. IMBERTSON, JOHN C. KELLIHER, JOHN A. WORRELL, SIDNEY A. ELLINGSTAD
  • Patent number: 8840956
    Abstract: A quantity of retroreflective granules includes glass members each having a refractive index of at least about 1.5. The quantity of retroreflective granules can be partially embedded into a binder material applied on the surface of a structure to provide a visual aid. A structure includes a retroreflective surface having an inclined face defined on at least a portion of the structure. The retroreflective surface also includes a binder material applied to at least a portion of the inclined face of the structure. The binder material has a thickness dimension of at least about 10 mil. The retroreflective surface further includes a plurality of retroreflective granules partially embedded in the binder material. The plurality of retroreflective granules have a density of at least about 0.06 pounds/square foot as embedded in the binder material. Each retroreflective granule includes a glass member having a refractive index of at least about 1.5.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: September 23, 2014
    Assignee: Potters Industries, LLC
    Inventors: Thomas Reuben Bell, Kevin Hall, Thomas Still
  • Publication number: 20140255602
    Abstract: The method and system of the present invention involves coating a substrate or material with both a polymeric powder coating material and a retro-reflective material and finally applying a surface treatment of hydrophobic nano-molecular particles. The polymeric powder coating material provides a tough, corrosion resistant protective layer on the substrate and also acts as a binder in which the retro-reflective material is subsequently embedded.
    Type: Application
    Filed: February 21, 2012
    Publication date: September 11, 2014
    Inventor: Aaron P. Bates
  • Patent number: 8828519
    Abstract: A composition includes polymer and dispersed infrared-reflective clusters of titanium dioxide primary particles. The titanium dioxide primary particles are cemented together with precipitated silica and/or alumina to form clusters. The titanium dioxide primary particles have an average particle diameter in the range of from about 0.15 to about 0.35 micron, while the clusters of titanium dioxide primary particles have an average cluster diameter in the range of from about 0.38 to about 5 microns and a geometric standard deviation (GSD) in the range of from about 1.55 to about 2.5.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: September 9, 2014
    Assignee: Cristal USA Inc.
    Inventors: Fu-Chu Wen, Deborah E. Busch, Richard L. Fricker, Robert Provins, Brian David Kiessling, David Edwin Bell
  • Patent number: 8814370
    Abstract: The present invention relates to an anti-reflective coating composition that can be used to form at least two layers by a single coating process and is allowed to provide an anti-reflective coating film having more improved interface adhesion between the formed layers and scratch resistance, and an anti-reflective coating film manufactured using the same.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 26, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Heon Kim, Yeong-Rae Chang, Joon-Koo Kang, Jae-Pil Koo
  • Publication number: 20140212626
    Abstract: A process for making inorganic, metal oxide spheres that includes exposing solidified, molded microparticles that include a glass precursor composition to a temperature sufficient to transform the molded microparticles into molten glass and cooling the molten glass to form inorganic, metal oxide spheres.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 31, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: David C. Kramlich, John L. Vandenberg, Matthew H. Frey, Scott R. Culler, Kathleen M. Schakel-Carlson
  • Publication number: 20140146520
    Abstract: An information handling system display frame disposed at the periphery of a display blends display and ambient light to provide a transitional zone for viewing of the display in ambient lighting conditions. A semi-scattering material absorbs light from the display and the ambient environment and scatters the light through the frame. A semi-reflective material directs at least some of the scattered light out of the frame so provide an appearance of the frame that transitions between displayed visual images of the display and the ambient light environment.
    Type: Application
    Filed: November 29, 2012
    Publication date: May 29, 2014
    Applicant: Dell Products L.P.
    Inventors: Andrew P. Tosh, Deeder M. Aurongzeb
  • Patent number: 8703232
    Abstract: The present disclosure describes an article and a method of forming a microstructure. The method includes providing a substrate having a structured surface region comprising one or more recessed features with recessed surfaces. The structured surface region is substantially free of plateaus. The method includes disposing a fluid composition comprising a functional material and a liquid onto the structured surface region. The method includes evaporating liquid from the fluid composition. The functional material collects on the recessed surfaces such that a remainder of the structured surface region is substantially free of the functional material.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: April 22, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Matthew S. Stay, Mikhail L. Pekurovsky, Cristin E. Moran, Matthew H. Frey
  • Patent number: 8705910
    Abstract: An optical module manufacturing method includes: forming a first waveguide layer and a second waveguide layer on a first substrate and a second substrate respectively, or forming a first waveguide layer and a second waveguide layer on a first surface of a first substrate and a second surface of the first substrate respectively; disposing the first substrate on the second substrate; disposing a filter at an end of the first waveguide layer and the second waveguide layer, so that the filter is aligned with the second waveguide layer; and disposing a prism on the filter, so that a first reflective surface of the prism is aligned with the first waveguide layer, and a second reflective surface is aligned with the second waveguide layer. Embodiments of the present application further disclose an optical module.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: April 22, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Tongxin Zeng, Fei Yu, Bin Xu, Junying Zhao
  • Patent number: 8663732
    Abstract: Light scattering inorganic substrates comprising monolayers and methods for making light scattering inorganic substrates comprising monolayers useful for, for example, photovoltaic cells are described herein. The method comprises providing an inorganic substrate comprising at least one surface, applying an adhesive to the at least one surface of the inorganic substrate, applying inorganic particles to the adhesive to form a coated substrate, and heating the coated substrate to form the light scattering inorganic substrate.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: March 4, 2014
    Assignee: Corsam Technologies LLC
    Inventor: Glenn Eric Kohnke
  • Patent number: 8586137
    Abstract: The present invention relates to a method for spraying particulate solids onto a substrate, comprising the steps of: coating the substrate with a wet and/or adhesive synthetic resin layer, building up a gas pressure in a line, generating a pressure differential in the line, swirling and carrying along particulate solids in the line, ejecting swirled, particulate solids from the line onto the surface of the wet and/or adhesive synthetic resin layer of the substrate. The invention also relates to a substrate, in particular a wood-based panel or decorative paper, at least partially coated with a particulate solid, characterized in that the particulate solid is applied to the substrate with an accuracy of up to ±0.8 g/m2, preferably of up to ±0.5 g/m2, particularly preferably of up to ±0.3 g/m2, preferably of up to 0.1 g/m2.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: November 19, 2013
    Assignee: Kronotec AG
    Inventors: Pius Steinmann, Christian Huebner, Erich Bauer
  • Publication number: 20130250419
    Abstract: A security element for manufacturing value documents, such as bank notes, checks or the like, has an upper side on which there is formed a microcavity structure that has a multiplicity of adjacent microcavities configured as retroreflectors, wherein on the microcavities there is formed a structure causing a color effect. The microcavities are respectively configured such that they have a first region in which radiation incident on the upper side is singly reflected, and a second region in which radiation incident on the upper side is multiply reflected. The structure causing the color effect has a dispersion dependent on the angle of incidence, so that radiation singly reflected at the first region shows a different color effect, when viewed from the upper side, than radiation multiply reflected at the second region.
    Type: Application
    Filed: November 18, 2011
    Publication date: September 26, 2013
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventor: Hans Lochbihler
  • Publication number: 20130215510
    Abstract: A retroreflective device securable to a highway by bonding thereto preferably with a viscous strip applied to the highway prior to solidifying cure of the strip includes a generally globular glass central member, a desirably pigmented adhesive layer over the central member and a plurality of peripheral globular glass members connected to the central member by the pigmented adhesive layer. A method for fabricating the retroreflective device is also disclosed.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 22, 2013
    Applicant: STONCOR GROUP, INC.
    Inventors: Frederick Gelfant, John Mulowski, Kent Stough, JR.
  • Patent number: 8470394
    Abstract: A colorized retroreflective materials for use on clothing are colorized by including a substantially transparent colorizing overlayer composition applied to a retroreflective layer, the overlayer further comprising an amount of a suitable pigmented ink; an amount of at least one species of polyurethane material; and an amount of a silane material.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: June 25, 2013
    Assignee: Safe Reflections, Inc.
    Inventors: Robert D. Koppes, Aaron K. Brannan
  • Publication number: 20130135731
    Abstract: This disclosure generally relates to retroreflective articles and methods of making such articles.
    Type: Application
    Filed: April 15, 2010
    Publication date: May 30, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kenneth L. Smith, Michael Benton Free, Bimal V. Thakkar, Raymond C. Chiu
  • Publication number: 20130108784
    Abstract: A colorized retroreflective materials for use on clothing are colorized by including a substantially transparent colorizing overlayer composition applied to a retroreflective layer, the overlayer further comprising an amount of a suitable pigmented ink; an amount of at least one species of polyurethane material; and an amount of a silane material.
    Type: Application
    Filed: December 18, 2012
    Publication date: May 2, 2013
    Applicant: Safe Reflections, Inc.
    Inventor: Safe Reflections, Inc.
  • Publication number: 20130089706
    Abstract: A composition includes polymer and dispersed infrared-reflective clusters of titanium dioxide primary particles. The titanium dioxide primary particles are cemented together with precipitated silica and/or alumina to form clusters. The titanium dioxide primary particles have an average particle diameter in the range of from about 0.15 to about 0.35 micron, while the clusters of titanium dioxide primary particles have an average cluster diameter in the range of from about 0.38 to about 5 microns and a geometric standard deviation (GSD) in the range of from about 1.55 to about 2.5.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 11, 2013
    Inventors: Fu-Chu Wen, Deborah E. Busch, Richard L. Fricker, Robert Provins, Brian David Kiessling, David Edwin Bell
  • Patent number: 8414957
    Abstract: The present invention relates to treating of reflective surfaces to prevent fouling. The present invention also relates to reflective materials treated to prevent fouling, as well as methods of using such reflective materials.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: April 9, 2013
    Assignee: Nanosys, Inc.
    Inventors: Robert Enzerink, R. Hugh Daniels
  • Publication number: 20120307336
    Abstract: The present invention is a programmable and latching retro-reflective construct suitable for use as an optical label in an optical labeling system. The invention contains retro-reflective structures such as lens beads, corner cubes or other retro-reflecting type structures. The retro-reflective construct further comprises a wavelength selective, programmable and latching reflecting structure located at the reflecting surfaces of the retro-reflective structures. The optical construct can optionally contain additional optical filtering structures. Methods for fabricating the invention are also described.
    Type: Application
    Filed: August 10, 2012
    Publication date: December 6, 2012
    Applicant: HRL LABORATORIES, LLC
    Inventors: Daniel Yap, Keyvan R. Sayyah, David L. Persechini, Paul R. Herz
  • Publication number: 20120300166
    Abstract: A polarization-sensitive beaded retro-reflective sheeting having cholesteric liquid crystal material as the specular reflective coating and methods of making the same are described.
    Type: Application
    Filed: May 25, 2011
    Publication date: November 29, 2012
    Inventor: Yingqiu Jiang
  • Publication number: 20120295020
    Abstract: The present invention relates to a preparation method of an optical member, comprising the following steps: coating a a mixture of methyl methacrylate (MMA) and a light diffuser on one surface of a substrate comprising poly methyl methacrylate (PMMA) by a predetermined pattern; polymerizing the coated methyl methacrylate into poly methyl methacrylate to form semi-cured polymethyl methacrylate; and completely curing the semi-cured polymethyl methacrylate, and an optical member prepared thereby.
    Type: Application
    Filed: January 18, 2011
    Publication date: November 22, 2012
    Inventors: Doo Jin Park, Ji Hwan Park, Seok Il Yoon, Hun Soo Oh, Dong Jin Jung, Ki Wan Baek, Jae Hoon Kim, Ki Seop Kim, Jong Kil Kim
  • Publication number: 20120257281
    Abstract: There is provided a method of manufacturing a refractive index distribution structure having a plurality of microparticles, suppressing density unevenness between the plurality of microparticles, capable of obtaining uniform in-plane characteristics, and capable of maintaining stability and high reproducibility. The method of manufacturing a refractive index distribution structure includes manufacturing a plurality of core-shell microparticles including a shell and a core microparticle contained in the shell, the core microparticle being made of a material having a refractive index higher than the material forming the shell and having the same core diameter, and the shell having a different shell thickness; and forming a refractive index distribution structure by arranging the plurality of core-shell microparticles on a substrate.
    Type: Application
    Filed: March 16, 2012
    Publication date: October 11, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Akinari Takagi
  • Publication number: 20120188640
    Abstract: The invention provides for compositions and process for fabricating an optical reflector constructed from biocompatible and bioresorbable silk fibroin proteins. For example, the silk retroreflectors may be built based on millimeter size microprism arrays to rotate the image plane of imaged cortical layers, thus enhancing the amount of photons that are detectable in the reflected direction when inserted in a sample to be analyzed, and ultimately increasing in contrast ratio in multiphoton microscopy. Such device can be used as a label-free, biocompatible, bioresorbable, implantable device for various applications ranging from medical imaging/diagnostics, drug/therapeutic delivery, to food chain safety and environmental monitoring.
    Type: Application
    Filed: July 20, 2010
    Publication date: July 26, 2012
    Applicant: TUFTS UNIVERSITY/TRUSTEES OF TUFTS COLLEGE
    Inventors: Fiorenzo Omenetto, David L. Kaplan
  • Patent number: 8197074
    Abstract: A flexible abrasion resistant water shedding omnidirectionally reflective rope has a central low-density polymeric closed cell foam core comprising EPDM, Neoprene, SBR, NBR, EVA, PVC, PVC/NBR foam surrounded by cylindrically braided sleeve of reflective strips composed of narrow width reflective strips that comprise a woven or knitted narrow width strip and a flexible nylon retroreflective sheet sewn thereon and covered with abrasion resistant water shedding coating. The flexible retroreflective sheet is formed by thermally bonding corner cube, microsphere retroreflectors, or wide angle exposed retroreflective lenses to a flexible polymeric sheet. Due to its low-density foam core construction, the reflective rope floats on water and sheds water from the surface preserving omnidirectional reflectivity.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: June 12, 2012
    Assignee: Nite Glow Industries, Inc.
    Inventor: Marni Markell Hurwitz
  • Patent number: 8147907
    Abstract: The present invention provides a retroreflective sheet with a discernable image. The retroreflective sheet comprises a transparent polymeric spacing layer having a first surface and a second surface; a layer of transparent microsphere lenses embedded into the first surface of the spacing layer at varying depths forming an image, wherein the spacing layer adheres to and conforms to the microspheres; and a reflective layer adhered to the second surface of the spacing layer. The present invention also provides methods for preparing such retroreflective sheet.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: April 3, 2012
    Assignee: Avery Dennison Corporation
    Inventor: Michael Hannington
  • Publication number: 20110292508
    Abstract: An exposed lens retroreflective article that includes a binder layer; a layer of spaced apart optical elements that are partially embedded in the binder layer; a penetrated colored layer that is located between the spaced apart optical elements; and a reflective layer that is located functionally behind the layer of optical elements and the penetrated colored layer.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 1, 2011
    Inventors: Ningyong Huang, Shane M. Klundt, Huijin Li, Loretta L. Lucas, Bradley R. Ray, Rong Wu
  • Publication number: 20110255165
    Abstract: The present application relates generally to retroreflective sheeting and the tools and methods used to make retroreflective sheeting. Microreplication tools and sheeting include controlled surface structure or haze. The surface structure or haze can be introduced, for example, by chemical etching of the tool surface and/or electroplating.
    Type: Application
    Filed: October 22, 2009
    Publication date: October 20, 2011
    Inventors: Kenneth L. Smith, James R. Imbertson, John C. Kelliher, John A. Worrell, Sidney A. Ellingstad
  • Publication number: 20110228392
    Abstract: An optical retroreflective apparatus and method thereof are described. The optical retroreflective apparatus includes a substrate, a first material layer, a first taper pattern layer, a reflecting layer, and a second material layer. The first material layer is formed on the substrate. The first taper pattern layer is formed on the first material layer wherein the first taper pattern layer has a plurality of first pyramidal units. The reflecting layer is formed on the first taper pattern layer wherein the reflecting layer has a plurality of reflecting patterns and each of the reflecting patterns is covered with each of first pyramidal units. The second material layer is formed on the reflecting layer wherein the second material layer has a second taper pattern layer having a plurality of second pyramidal units. The second taper pattern layer is covered with the reflecting layer and the second pyramidal units are filled with the spacing region between the reflecting patterns of the reflecting layer.
    Type: Application
    Filed: May 28, 2010
    Publication date: September 22, 2011
    Applicant: DAYU optoelectronics
    Inventors: Jauh-jung Yang, Chi-feng Chen
  • Publication number: 20110159179
    Abstract: A retroreflective sheeting (10) comprising a cube layer (20) having a front light-receiving surface (30) and a rear retroreflecting surface (32), and a metallic layer (22) covering the rear retroreflecting surface (32). The rear surface (32) comprises an array of retroreflective elements (34) and diffusing patches (36) within such array (without retroreflective elements (34)). The metallic layer (22) covers the retroreflective elements (34) and the diffusing patches (36), whereby diffusing patches (36) scatter incoming light increasing daytime brightness to a desired level.
    Type: Application
    Filed: March 10, 2011
    Publication date: June 30, 2011
    Applicant: AVERY DENNISON CORPORATION
    Inventors: Steven R. Chapman, Feng Wu, Kejian (Kevin) Huang
  • Patent number: 7945311
    Abstract: A marker-tracking system includes an object, a marker illuminating device, a marker sensing device, and a computing device. The object includes a first retroreflective marker having a shape that is substantially defined by two spherical caps of different radii that are disposed substantially concentric in relation to one another. The marker illuminating device substantially illuminates the first retroreflective marker, the marker sensing device detects the illuminated first retroreflective marker and generates first data indicative of the location of the illuminated first retroreflective marker in space, and the computing device processes the first data generated by the marker sensing device to determine a position and/or orientation of the object in space.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: May 17, 2011
    Assignee: Northern Digital Inc.
    Inventors: Bradley J. McCloy, Georg Brunner
  • Publication number: 20110045176
    Abstract: A colorized retroreflective materials for use on clothing are colorized by including a substantially transparent colorizing overlayer composition applied to a retroreflective layer, the overlayer further comprising an amount of a suitable pigmented ink; an amount of at least one species of polyurethane material; and an amount of a silane material.
    Type: Application
    Filed: October 26, 2010
    Publication date: February 24, 2011
    Applicant: Safe Reflections, Inc.
    Inventors: Robert D. Koppes, Aaron K. Brannan
  • Publication number: 20110027474
    Abstract: A reflecting screen 10 comprises a base portion 11, light transmitting portions 12 provided on the base portion 11, and light absorbing portions 14. Each of the light transmitting portions 12 comprises a unit prism shape 12 which has a generally wedge-like shape with a larger width on the image source side than its width on the rear face side and is arranged along a screen face 10a. A reflecting layer 13 adapted to reflect the image light, which has been transmitted through the unit prism shapes 12, is provided on the rear face side of each unit prism shape 12. Each unit prism shape 12 extends linearly, and each light absorbing portion 14 is arranged between each adjacent pair of the unit prism shapes 12.
    Type: Application
    Filed: October 6, 2010
    Publication date: February 3, 2011
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Nobuhiko Ichikawa, Hiroshi Sekiguchi, Jun Horikoshi, Akihide Sano, Takeshi Ogawa
  • Publication number: 20100284080
    Abstract: A fabric-backed retroreflective article has improved visual appearance by combining the fabric and retroreflective layers. An article, comprises a retroreflective layer formed of a resin that partially interpenetrates a fabric layer. Manufacturing a retroreflective article includes a retroreflective layer partially interpenetrating a fabric layer. The method includes disposing a layer of curable resin on a fabric layer; causing the layer of curable resin to partially penetrate the fabric layer; and curing the layer of curable resin, thereby forming the retroreflective layer partially interpenetrating the fabric layer.
    Type: Application
    Filed: September 23, 2008
    Publication date: November 11, 2010
    Applicant: REFLEXITE CORPORATION
    Inventor: Patrick W. Mullen
  • Patent number: 7781013
    Abstract: A transparent support and plural types of particle groups having different particle size distributions each other that are to be contained in a light diffusing layer are provided. a blending ratio of the plural types of particle groups is computed such that a space packing ratio of respective particles in the light diffusing layer becomes a specified space packing ratio and the plural types of particle groups having been blended in the computed blending ratio are dispersed on the transparent support, whereby the light diffusing layer is formed on the transparent support. Thus, a diffusion film can be produced simply and at low cost.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: August 24, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Toshiaki Endo, Akihiko Takeda, Osamu Iwasaki
  • Patent number: 7746914
    Abstract: A waveguide retroreflector consists of an end cap with curved output surface attached to a waveguide such as optical fiber. The radius of curvature of the output surface of the end cap matches the length of the end cap so as to retro-reflect a substantial portion of radiation exiting the waveguide, back into the waveguide. A method of fabricating the waveguide retroreflector includes steps of splicing an end cap to a waveguide, heating the free flat surface of the end cap, so that surface tension changes the shape of the end cap to a convex shape due to surface tension, monitoring amount of light reflected off the surface being heated, and stopping applying the heat when the amount of the reflected light approaches a maximum value.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: June 29, 2010
    Assignee: JDS Uniphase Corporation
    Inventor: Martin H. Muendel
  • Patent number: 7727626
    Abstract: A light diffusion plate has a substrate and a light diffusion layer formed on the substrate. The light diffusion layer is composed of at least two layers: a first light diffusion layer containing a first matrix and a first light diffusion agent having a refractive index difference ?n1 of 0.04??n1?0.2 with the first matrix, and a second light diffusion layer containing a second matrix and a second light diffusion agent having a refractive index difference ?n2 of 0.005??n2?0.01 with the second matrix. The volume fraction of the first light diffusion agent in the first light diffusion layer is less than 40%, the volume fraction of the second light diffusion agent in the second light diffusion layer is at least 40% and the total thickness of the light diffusion layers is from 5 to 200 ?m after curing.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: June 1, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Hisao Inokuma, Toshihiko Higuchi, Akira Mitsui
  • Publication number: 20100112340
    Abstract: A quantity of retroreflective granules includes glass members each having a refractive index of at least about 1.5. The quantity of retroreflective granules can be partially embedded into a binder material applied on the surface of a structure to provide a visual aid. A structure includes a retroreflective surface having an inclined face defined on at least a portion of the structure. The retroreflective surface also includes a binder material applied to at least a portion of the inclined face of the structure. The binder material has a thickness dimension of at least about 10 mil. The retroreflective surface further includes a plurality of retroreflective granules partially embedded in the binder material. The plurality of retroreflective granules have a density of at least about 0.06 pounds/square foot as embedded in the binder material. Each retroreflective granule includes a glass member having a refractive index of at least about 1.5.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 6, 2010
    Applicant: Potters Industries Inc.
    Inventor: Thomas Reuben Bell
  • Publication number: 20100053639
    Abstract: A retro-reflector for image-guided operation systems, comprising eight cube corners, wherein the tips of the cube corners are adjacent to each other and each cube corner is formed from three reflective faces, comprising a protection against contamination which prevents dirt from being deposited in the cube corners.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 4, 2010
    Inventor: Christian Maier
  • Patent number: 7658980
    Abstract: A tamper-indicating printable sheet. A preferred embodiment of the invention provides a tamper-indicating printable sheet comprising a retroreflective layer comprising a plurality of microbeads partially embedded in an inkjet receptive beadbond layer; and a reflector layer between one of the microbeads and the inkjet receptive beadbond layer. The present invention provides a method of making a tamper-indicating printable sheet.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: February 9, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Richard J. Kuo, Mathias Detjen, Brian W. Dunne, Paul E. Marecki, Tadesse G. Nigatu, Kenneth M. White