Corning Incorporated

Other

Corning Research & Development Corporation

David L Weidman

Daniel Aloysius Nolan

William James Miller

Yuhui Jin

Mark A Newhouse

Karl William Koch, Iii

Jaymin Amin

Liang C Dong

Aize Li

Gang Qi

Florence Christine Monique Verrier

Donald R Young, Jr

Cameron Robert Nelson

Jayantha Senawiratne

Dana Craig Bookbinder

Nicholas Francis Borrelli

George Halsey Beall

Shandon Dee Hart

James Joseph Price

Joel P Carberry

Carlo Anthony Kosik Williams

William H Dumbaugh, Jr

Josef C Lapp

Donald B Keck

Douglas W Hall

Lin Lin

Mark Lawrence Powley

Melanie Lian Geiger

Christine Cecala

Jacques Gollier

Richard Allen Hayes

Rostislav Vatchev Roussev

Govindarajan Natarajan

George Edward Berkey

Mingqian He

Robert Adam Modavis

Weijun Niu

Kevin Barry Reiman

Ling Chen

Brent M Wedding

Aramais Robert Zakharian

Carlton Maurice Truesdale

Vikram Bhatia

Jeffrey John Domey

Matthew Wade Fenton

John Richard Ridge

Huayun Deng

Qiao Li

Martin Hempstead

Wei Sun

Laura A Weller-Brophy

Vasudha Ravichandran

Denis M Trouchet

Richard Alan Quinn

Gordon Charles Brown

Joan Deanna Gregorski

Thomas W Webb

Christopher D Robson

Brian Paul Usiak

Adam K Collier

Latha I Swaroop

Marlene A Marro

Xinyu Cao

Binwei Zhang

Wanghui Chen

Jeremy Alexander Graham, Sr

Agnivo Gosai

Ronghua Chen

Martin R Swan

Lisa Wan-I Liou

Doublas W Hall

Karl William Koch Iii

Described herein are textured glass-based articles. The textured glass based articles may include a glass-based substrate including a first major surface and a second major surface. At least a portion of one or both of the first major surface and the second major surface is textured, wherein the portion of the one or both of the first major surface and the second major surface that are textured may have a sparkle at 140 ppi of less than or equal to 5% and an uncoupled distinctness-of-image of at least 78%. Methods for making such articles are also described herein.

Textured glass-based articles

A glass article is provided that includes: a glass substrate comprising a thickness and a primary surface; and a textured region defined by the primary surface. The textured region comprises a low spatial frequency region and a high spatial frequency region substantially superimposed within the low spatial frequency region. Further, the low spatial frequency region comprises an average lateral feature size that exceeds an average lateral feature size of the high spatial frequency region. In addition, the textured region comprises a surface roughness (R) from about 10 nm to about 1000 nm.

Textured, antiglare glass articles and methods of making the same

A display article is described herein that includes: a substrate comprising a thickness and a primary surface; a textured surface region; and an antireflective coating disposed on the textured surface region. The textured surface region comprises structural features and an average texture height (R) from 50 nm to 300 nm. The substrate exhibits a sparkle of less than 5%, as measured by PPD, and a transmittance haze of less than 40%, at a 0° incident angle. The antireflective coating comprises alternating high refractive index and low refractive index layers. Each of the low index layers comprises a refractive index of less than or equal to 1.8, and each of the high index layers comprises a refractive index of greater than 1.8. The article also exhibits a first-surface average photopic specular reflectance (% R) of less than 0.3% at any incident angle from about 5° to 20° from normal at visible wavelengths.

Display articles with antiglare surfaces and thin, durable antireflection coatings

In one embodiment, a coupler includes a glass tube having a refractive index nand a passageway, a first optical waveguide and a second optical waveguide positioned within the passageway, each of the first optical waveguide and the second optical waveguide comprising a core surrounded by a cladding. The glass tube further includes a tapered region having a taper length. A coupling region is present between the first optical waveguide and the second optical waveguide within the tapered region. A refractive index of the cladding is less than a refractive index of the core, and a lowest refractive index of the cladding of the first optical waveguide and the second optical waveguide is n. Additionally, nis lower than nsuch that a value of Δis 0.07%≤Δ≤0.125, where Δequals (n−n)/2n.

Achromatic couplers, achromatic variable ratio couplers, and methods of making the same

Glass-based substrates are described herein that may be processed by methods including applying a cover article onto a glass-based substrate, submerging the glass-based substrate in an etchant, and maintaining the submersion of the glass-based substrate in the etchant. The glass-based substrate may include a covered surface portion and an exposed surface portion. At least a portion of the covered surface portion may be in direct contact with the cover article. The covered surface portion may not be in contact with the etchant and the exposed surface portion may be in direct contact with the etchant. The etchant may contact the exposed surface portion and the cover article fora time sufficient to etch the exposed surface portion. The cover article may provide a barrier between the etchant and the covered surface portion for the entirety of the submerging.

Methods for etching glass-based substrates

A textured glass article includes: a body comprising an aluminosilicate glass comprising greater than or equal to 16 wt % AlO, the body having at least a first surface; and a plurality of polyhedral surface features extending from the first surface, each of the plurality of polyhedral surface features comprising a base on the first surface, a plurality of facets extending from the first surface, and a surface feature size at the base greater than or equal to 10 μm and less than or equal to 350 μm, wherein the plurality of facets of each polyhedral surface feature converge toward one another.

Textured glass articles and methods of making same

High contrast, glass-based, writeable/erasable front projection screens are provided. The screens include a transparent glass sheet which has a front surface and a back surface separated by a distance d. The back surface is in optical contact with a diffusing element. During use of the projection screen, the glass sheet transmits image light from a projector to the diffusing element and the diffusing element reflects a portion of that light back through the glass sheet to a user. The screens have a user-facing surface that is a writable/erasable surface. In embodiments, the distance d is less than or equal to 0.2 millimeters, the whiteness W of the projection screen is less than or equal to 0.5, and/or the contrast C of the projection screen is at least 75%.

High contrast, glass-based, writeable/erasable front projection screens

The invention relates to glass articles suitable for use as writable erasable marker boards. More particularly, disclosed is a strengthened glass article suitable for use as a writable erasable marker boards, wherein the glass sheet exhibits an ion exchanged glass having a front surface and a back surface and exhibiting a thickness of less than 2.0 mm and having a depth of layer (DOL) greater than 20 microns and a surface compressive strength of at least 300 MPa. The strengthened glass article exhibits certain optical properties which render it particularly suitable for use as a writable erasable marker boards electronic including: (1) shadow parallax to thickness ratio of less than 1 measured at a 60 degree incident light angle and for an index of refraction n; and, (2) a haze of less than 50%. Further disclosed is a markerboard with improved magnetic force attributes; sufficient to hold weak magnets in place.

Durable glass articles for use as writable erasable marker boards

A method for operating a wavelength-converted light source includes directing a pump beam having a fundamental wavelength from the laser source into an input facet of the wavelength conversion device such that a wavelength-converted output beam is emitted from an output facet of the wavelength conversion device in the field of view of an optical detector. A physical property of the wavelength conversion device is varied within individual ones of a succession of consecutive speckle reduction intervals having durations less than the integration time of the optical detector. The physical property of the wavelength conversion device is varied by an amount that is sufficient to change in a phase-matched (PM) wavelength of the wavelength conversion device. The fundamental wavelength of the pump beam is thereafter adjusted based on the change in the PM wavelength to maintain an efficiency of the wavelength conversion in the wavelength conversion device.

Methods for controlling wavelength-converted light sources to reduce speckle

An athermal optical device and a method for producing the device, such as an athermal optical fiber reflective grating, are described. The athermal optical fiber reflective grating device comprises a negative expansion substrate, an optical fiber mounted on the substrate surface, and a grating defined in the optical fiber. The method for producing the athermal optical fiber reflective grating device comprises providing a negative expansion substrate, mounting an optical fiber with at least one reflective grating defined therein onto the substrate upper surface, and affixing the optical fiber to the substrate at at least two spaced apart locations.

Athermal optical devices employing negative expansion substrates

A fiber optic coupler comprising a plurality of single-mode optical fibers, each of which is tapered to form a small diameter section that extends in contiguous relationship with the small diameter sections of the other fibers to form a coupling region. Each of the fibers has a core surrounded by a cladding of refractive index lower than that of the core. At least one of the fibers has a refractive index pedestal of refractive index n between said core and cladding, wherein n >n >n , n and n being the refractive indices of the core and cladding, respectively.

Fiber optic coupler exhibiting low nonadiabatic loss

A dispersion compensating module, mode converter, coupler and dispersion compensated optical fiber therein. The dispersion compensating fiber has a plurality of core segments, the refractive index profile being selected to exhibit properties such that an LP mode at 1550 nm may be propagated a distance (generally 0.5-3.0 km), upon conversion to LP , to compensate for dispersion of a length of transmission waveguide preferably greater than 25 km propagating in an LP mode. In another embodiment, the dispersion compensating module has a mode converter having a reflective fiber grating for converting a first to a second mode interconnected to a dispersion compensated fiber propagating in the second mode. The mode converter has a coupler adapted to operatively couple light propagating in a first mode from a first fiber into a second, and a reflective fiber grating operatively coupled to the second fiber; the grating being capable of converting light from the first into the second mode. According to another embodiment, an optical fiber coupler is provided having a first fiber with a first propagation constant in a first mode, and a second fiber within the coupler having a second propagation constant, the second fiber including a necked-down portion which is formed prior to fusion of the fibers, the necked-down portion being formed such that the local propagation constant of the second fiber substantially matches the first propagation constant thereby enhancing first mode coupling.

Dispersion compensating module and mode converter, coupler and dispersion compensating optical waveguide therein

An athermal optical device and a method for producing the device, such as an athermal optical fiber reflective grating ( ), are described. The athermal optical fiber reflective grating device ( ) comprises a negative expansion substrate ( ), an optical fiber ( ) mounted on the substrate ( ) surface, and a grating ( ) defined in the optical fiber ( ). The method for producing the athermal optical fiber reflective grating ( ) device comprises providing a negative expansion substrate ( ), mounting an optical fiber ( ) with at least one reflective grating ( ) defined therein onto the substrate ( ) upper surface, and affixing the optical fiber ( ) to the substrate ( ) at at least two spaced-apart locations ( ).

Athermal optical device

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Corning, NY, United States of America

David L Weidman