3m Innovative Properties Company

Eastman-kodak Company

Carestream Health, Inc.

Solventum Intellectual Properties Company

Gemalto Sa

Steven H Kong

Thomas P Klun

David B Olson

Tri Dinh Pham

Gary Timothy Boyd

Kumars Sakizadeh

Robert A Yapel

Steven D Solomonson

Bryan V Hunt

William Donald Ramsden

Fei Lu

Caroline M Ylitalo

Kui Chen-Ho

Nicholas A Johnson

Glenn E Casner

Steven J McMan

Robert B Secor

Gary E Labelle

Robert W Shannon

Kyle J Lindstrom

Daniel J Skamser

Douglas Scott Dunn

Joseph T Aronson

Mitchell A F Johnson

Scott R Kaytor

Slah Jendoubi

Qingbing Wang

Paul G Skoug

Guruprasad Somasundaram

Britton G Billingsley

Haiyan Zhang

Michael A McCoy

Travis L Potts

Nathan J Anderson

Gautam Singh

Michelle Lund Toy

Christopher K Haas

Timothy J Gardner

Matthew R C Atkinson

Muhammad Jamal Afridi

Anne C Gold

Michael R Leaf

Jonathan T Kahl

Silvia Geciova-Borovova Guttmann

Mahfuza B Ali

James D Hansen

Christopher Bland Walker, Jr

Yu Yang

Suresh Iyer

David G Freier

Yongshang Lu

Doreen Catherine Lynch

Saswata Chakraborty

Karl J L Geisler

Anthony M Renstrom

Taun L McKenzie

John M Riedesel

Anja Friedrich

Thomas C Geisler

Mark C Skinner

Hyacinth L Lechuga

Randy A Larson

Catherine L Aune

James C Vanous

Gary E LaBelle

Benjamin C MacMurray

Ingrid N Haugan

Joseph A Zigal

Robert R Brearey

Michael K Gerlach

Alan L Levin

Christopher P Tebow

EmmaLee J Spahl

Mitchell AF Johnson

Matthew RC Atkinson

Suresh S Iyer

Optical articles including a spatially defined arrangement of a plurality of data rich retroreflective elements, wherein the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties and at least two different optical contrasts with respect to a background substrate when observed within an ultraviolet spectrum, a visible spectrum, a near-infrared spectrum, or a combination thereof.

Optical articles and systems interacting with the same

The present disclosure provides a method of making an orthodontic article. The method includes (a) providing a photopolymerizable composition; (b) selectively curing the photopolymerizable composition using actinic radiation to form an article in the shape of an orthodontic article including a number of layers of at least one photopolymerized polymer; and (c) moving the article and thereby generating a mass inertial force in the uncured photopolymerizable composition. The article has a first surface, and no more than 75% of the first surface has a slope magnitude greater than 2.5 degrees. Orthodontic articles are also provided, including an orthodontic article that is prepared according to the method. Orthodontic articles having low extractable component content are further provided. The mass inertial force tends to form a coating layer of uncured photopolymerizable composition on the article, and curing the coating layer can form a surface having low slope magnitude. The low slope magnitude may be correlated to a low haze of the surface of the article.

Orthodontic articles and methods of making and postprocessing same

Optical films for redirecting light are described, and optical systems, such as display systems, incorporating such optical films are described. The optical film may include a first structured surface including a plurality of prismatic structures, and a second structured surface opposing the first structured surface and including a plurality of microstructures. An effective transmission of the optical film is not more than 1% less than a film with a comparable construction except for a smooth, non-structured second surface.

Light redirecting film and display system incorporating same

Optical diffusing films are made by microreplication from a structured surface tool. The tool is made using a 2-part electroplating process, wherein a first electroplating procedure forms a first metal layer with a first major surface, and a second electroplating procedure forms a second metal layer on the first metal layer, the second metal layer having a second major surface with a smaller average roughness than that of the first major surface. The second major surface can function as the structured surface of the tool. A replica of this surface can then be made in a major surface of an optical film to provide light diffusing properties. The structured surface and/or its constituent structures can be characterized in terms of various parameters such as optical haze, optical clarity, Fourier power spectra of the topography along orthogonal in-plane directions, ridge length per unit area, equivalent circular diameter (ECD), and/or aspect ratio.

Optical diffusing films and methods of making same

Brightness enhancing films with embedded diffusers are described. More specifically, films including a birefringent substrate, a prismatic layer carried by the substrate having linear prisms, and an embedded structured surface disposed between the substrate and the prismatic layer are disclosed. The embedded structured surface may include closely-packed structures. Processes for producing embedded structured surfaces having particular topographies are also disclosed.

Brightness enhancing film with embedded diffuser

Described herein is composite article comprising a substrate; and on at least one face of the substrate a multilayered coating disposed thereon. The multilayered coating comprises (i) an abrasion-resistant layer adjacent to the substrate, wherein the abrasion-resistant layer comprises inorganic oxide nanoparticles and a polymer binder; and (ii) an antireflection layer adjacent to the abrasion-resistant layer opposite the substrate, wherein the antireflection layer comprises a fluorosilane polymer, wherein the fluorosilane polymer comprises: at least one monomeric unit A represented by the formula (I) wherein Rrepresents H or methyl, Lrepresents a covalent bond or a divalent aliphatic group having from 1 to 10 carbon atoms, each Yindependently represents a hydrocarbyl group having from 1 to 6 carbon atoms, each Yindependently represents a hydrolyzable group, g is 0, 1, or 2; and at least one divalent monomeric unit B represented by the formula (I) wherein R, R, and Rrepresent H, methyl, trifluoromethyl, or F, wherein at least one of R, R, and Ris F, Rrepresents a covalent bond or a divalent group selected from the group consisting of &#x2014;(CFO)&#x2014;, &#x2014;(CFCFO)&#x2014;, &#x2014;(CFCFCFO)&#x2014;, &#x2014;(CFCFCFCFO)&#x2014;, &#x2014;(CFCF(CF)O)&#x2014;, and combinations thereof, wherein a, b, c, d, and e represent integers in the range of from 0 to 130, and wherein 1&#x2264;a+b+c+d+e&#x2264;130, and Ris a perfluoroalkyl group. 

Multilayer composite article

An optical film having a structured surface is described. At least 90% of the structured surface has a slope magnitude that is less than about 5 degrees. The optical film may have an optical haze of less than about 10% and an optical clarity of less than about 50%, or may have an optical haze of less than about 7.5% and an optical clarity of less than about 60%, or may have an optical haze of less than about 3% and an optical clarity of less than about 65%.

The disclosure generally relates to efficient hollow light duct bends () that are capable of retaining a higher on-axis transmission for partially collimated light propagating within a light duct (). In particular, the described hollow light duct bends () include input and output plates () that have low reflectivity for near nonnal incident light, and high reflectivity for near grazing incident light.

Hollow light duct bend

The present invention concerns antireflective films comprising a high refractive index layer () and low refractive index layer () disposed on the high refractive index layer. The antireflective films have a microstructured surface () that can be derived from a microreplicated tool.

Antireflective films comprising microstructured surface

Light redirecting film is disclosed. The light redirecting film includes a first major surface that includes a plurality of first microstructures that extend along a first direction. The light redirecting film also includes a second major surface that is opposite to the first major surface and includes a plurality of second microstructures. The second major surface has an optical haze that is in a range from about 4% to about 20% and an optical clarity that is in a range from about 20% to about 60%. The light redirecting film has an average effective transmission that is not less than about 1.55.

A light redirecting film () includes a first major surface () that includes first microstructures () that extend along a first direction and a second major surface (), which may form part of a matte layer, the second major surface being opposite to the first major surface and including second microstructures (). The second major surface has an optical haze that is not greater than about 3% and an optical clarity that is not greater than about 85%. The light redirecting film has an average effective transmission that is not less than about 1.75. The light redirecting film () may comprise particles. The second microstructures may have a slope distribution.

A photothermographic material having a Dmin and Dmax optical density. The material includes a support having hereon one or more thermally-developable imaging layers which are developable to produce an image when the photothermographic material is thermally processed; and an area disposed along a length of at least one edge of the photothermographic material, wherein the area has an optical density less than the Dmax and greater than the Dmin of the photothermographic material.

Thermally developable imaging material

Thermally developable photothermographic materials comprise a backside layer that includes a backside stabilizer to reduce fog formation in high humidity conditions, thereby providing improved shelf stability. Useful backside stabilizers include an amine organic base whose conjugate acid has a pKa greater than 5. These backside stabilizers can be provided particularly in non-photosensitive compositions that include an antihalation composition.

Thermally development imaging materials having backside stabilizers

Growing community of inventors

Woodbury, MN, United States of America

Steven H Kong