Abstract: A cover article for a sensor is described herein that includes: a substrate; and an outer layered film disposed on the substrate. The outer layered film comprises alternating high and low refractive index (RI) layers. Each of the high RI layers comprises a nitride or an oxynitride. The outer layered film can have a physical thickness from about 500 nm to 12,000 nm. The article has at least two non-overlapping wavelength bands, each band having a bandwidth from 5 nm to 200 nm and a central wavelength within a spectrum from 400 nm to 1200 nm. Further, the article exhibits, for each of the at least two non-overlapping wavelength bands, (a) an average two-surface transmittance of >70% within incident angles from 0° to 20° and (b) an average two-surface transmittance of <50% within incident angles from 200 to 90°.

Abstract: Disclosed is a window for a sensing system comprising a substrate, a first layered film comprising alternating layers of higher and lower index materials, and a second layered film comprising alternating layers of higher and lower index materials. The window comprises a maximum hardness, measured at the first layered film and by the Berkovich Indenter Hardness Test, of at least 8 GPa. The first and second layered films are configured so that the window has favorable antireflective and transmission attributes in an infrared wavelength range of interest, while providing relatively low reflectance and transmittance in the visible spectrum to provide a dark appearance and low signal noise.

Abstract: A coated textured glass article is described herein that comprises: a glass body comprising a first surface; a plurality of polyhedral surface features extending from the first surface; and a coating disposed on the first surface of the body and the plurality of polyhedral surface features. Each of the plurality of polyhedral surface features comprises a base on the first surface and a plurality of facets extending from the base and converging toward one another. The coating comprises a multilayer interference stack.

Abstract: A window for a sensing system is provided that includes: a substrate comprising an outer and an inner primary surface; an outer layered film disposed on the outer primary surface; and an inner layered film disposed on the inner primary surface. Each of the outer and inner layered films comprises alternating high index and low index layers. The outer layered film comprises a scratch resistant layer having a thickness from about 0.5 ?m to about 10 ?m, and exhibits a hardness of at least 11 GPa, as measured with a Berkovich Indenter Hardness Test. The window exhibits an average transmittance of greater than 85% within ±25 nm of at least one wavelength within the infrared spectrum from 900 nm to 1600 nm and an average transmittance of less than 5% in the visible spectrum from 420 nm to 650 nm, each at an angle of incidence<15°.

Abstract: A window for a sensing system includes a first layered film and a second layered film. The first and second layered film each include alternating layers of lower and higher refractive index materials. The first layered film includes a scratch resistant layer such that the window exhibits a maximum nanoindentation hardness of greater than or equal to 10 GPa when indented on the first layered film. The materials and thicknesses of the layers of the first and second layered films are selected such that the window exhibits relatively high transmittance and low reflectance in two distinct wavelength ranges of interest.

Abstract: A cover glass article is described herein comprising at least one substrate with opposing outer and inner primary surfaces, and at least one of an outer optical film structure and an inner optical disposed on the outer and inner primary surfaces, respectively. The outer and inner film structures comprise alternating high and low refractive index layers, in which at least a portion of the high refractive index layers independently is an oxide, a nitride, and/or an oxynitride, and at least a portion of the low refractive index layers independently is an oxide, a nitride, an oxynitride, and/or a metal fluoride. The cover glass article exhibits high visible light transmittance and low infrared light transmittance, being useful in applications including lenses, sensors, sensor assemblies, light sources, smartwatches, a smartphones, smart glasses, vehicle camera systems, displays, and cameras.

Abstract: A cover article is described herein that includes: a substrate comprising an outer and an inner primary surface, the outer and inner primary surfaces opposite of one another; and an optical film structure comprising an outermost surface disposed on the outer or inner primary surface of the substrate. The optical film structure comprises a plurality of alternating high refractive index and low refractive index layers. Each of the high index layers has a refractive index greater than a refractive index of each of the low index layers. Further, the cover article exhibits a substantially constant hue in reflectance with a D65 illuminant, as given by: (a) an exhibited color with a variation in Hue Angle (h*) of less than 60 degrees over a viewing angle range from 0 to 60 degrees; or (b) an exhibited grey hue or silver hue, each with a Chroma (c*) of less than 10.

Abstract: Durable and scratch resistant articles including low-reflectance optical coating with gradient portion. In some embodiments, an article comprises: a substrate comprising a first major surface; and an optical coating disposed over the first major surface. The optical coating comprises: a second major surface; a thickness; and a first gradient portion. A refractive index of the optical coating varies along a thickness of the optical coating. The difference between the maximum refractive index of the first gradient portion and the minimum refractive index of the first gradient portion is 0.05 or greater. The absolute value of the slope of the refractive index of the first gradient portion is 0.1/nm or less everywhere along the thickness of the first gradient portion. The article exhibits a single side photopic average light reflectance of 3% or less, and a maximum hardness from 10 GPa to 30 GPa.

Abstract: A screen protector is described herein that is configured to be releasably attached to an optical coating on a glass-containing display of an electronic device. The protector comprises: a glass-containing substrate comprising an outer and inner primary surface; an antireflective (AR) coating on the outer primary surface; and an interlayer on the inner primary surface for releasable attachment to the optical coating on the display. The interlayer comprises an adhesive, a physical thickness from about 10 ?m to 500 ?m, and one or more refractive indices from ˜1.2 to 1.6. Further, an average photopic reflectance of the screen protector can be less than 2% for all incident angles from 0° to 30°. The interlayer can comprise optically clear adhesive (OCA), polymer-containing layer, and releasable adhesive layers. An anti-splinter (AS) film can be between the interlayer and the substrate. The interlayer and/or AS film may be a cyclo olefin, cellulose triacetate or polyurethane.

Abstract: 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 (Rtext) from 50 nm to 300 nm. The substrate exhibits a sparkle of less than 5%, as measured by PPD140, 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.

Abstract: According to one or more embodiments described herein, a coated article may comprise: a transparent substrate having a major surface, the major surface comprising a textured or rough surface inducing light scattering; and an optical coating disposed on the major surface of the transparent substrate and forming an air-side surface, the optical coating comprising one or more layers of material, the optical coating having a physical thickness of greater than 300 nm, wherein the coated article exhibits a maximum hardness of about 10 GPa or greater as measured on the air-side surface by a Berkovich Indenter Hardness Test along an indentation depth of about 50 nm or greater.

Abstract: A display article is described herein that includes: a substrate comprising a thickness and primary surface; a diffractive surface region defined by the primary surface; and an antireflective coating disposed on the diffractive surface region. The diffractive surface region comprises structural features that comprise different heights in a multimodal distribution. The substrate exhibits a sparkle of <4%, and a transmittance haze of <20%, each from an incident angle of 0°. The antireflection coating comprises a plurality of alternating high refractive index and low refractive index layers. Further, each of the low index layers comprises a refractive index of ?about 1.8, and each of the high index layers comprises a refractive index of >1.8. The article exhibits a first-surface average visible specular reflectance of less than 0.2% at an incident angle of 20°, and a maximum hardness of ?8 GPa in a Berkovich Indenter Hardness Test.

Abstract: An article that includes: an inorganic oxide substrate having opposing major surfaces; and an optical film structure disposed on a first major surface of the substrate, the optical film structure comprising one or more of a silicon-containing oxide, a silicon-containing nitride and a silicon-containing oxynitride and a physical thickness from about 50 nm to less than 500 nm. The article exhibits a hardness of 8 GPa or greater measured at an indentation depth of about 100 nm or a maximum hardness of 9 GPa or greater measured over an indentation depth range from about 100 nm to about 500 nm, the hardness and the maximum hardness measured by a Berkovich Indenter Hardness Test. Further, the article exhibits a single-side photopic average reflectance that is less than 1%.

Abstract: 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 (Rtext) from 50 nm to 300 nm. The substrate exhibits a sparkle of less than 5%, as measured by PPD140, 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.

Abstract: A transparent article is described herein that includes: a glass-ceramic substrate comprising first and second primary surfaces opposing one another and a crystallinity of at least 40% by weight; and an optical film structure disposed on the first primary surface. The optical film structure comprises a plurality of alternating high refractive index (RI) and low RI layers and a scratch-resistant layer. The article also exhibits an average photopic transmittance of greater than 80% and a maximum hardness of greater than 10 GPa, as measured by a Berkovich Hardness Test over an indentation depth range from about 100 nm to about 500 nm. The glass-ceramic substrate comprises an elastic modulus of greater than 85 GPa and a fracture toughness of greater than 0.8 MPa·?m. Further, the optical film structure exhibits a residual compressive stress of ?700 MPa and an elastic modulus of ?140 GPa.

Abstract: An article is described herein that includes an optical coating on both a first portion and a second portion of a first major surface of a substrate. The first portion and the second portion face in different directions. The optical coating forms an anti-reflective surface, has a total thickness of less than 1000 nm, and is thicker over the first portion than over the second portion. The optical coating exhibits a first surface reflected color characterized by International Commission on Illumination (“CIE”) L*a*b* color space values of: (i) a*, from ?6.0 to +4.5, and (ii) b*, from ?11.0 to +6.0 at all viewing angles within a range of from 0 degrees to 10 degrees relative to a normal of the first major surface at both (i) the first portion and (ii) the second portion where the total thickness of the optical coating is 75% to 90% of the maximum value of the total thickness.

Abstract: A coated article for use as a display screen for automotive displays includes a substrate that is a glass or a glass ceramic and has at least one surface, and an ETC coating bonded to the surface of the substrate by inkjet printing. A method for applying the ETC coating onto the substrate to produce the coated articles includes providing the substrate having the surface, where the substrate is a glass substrate or a glass ceramic substrate. The method further includes preparing an ETC coating composition that includes a polymer and a solvent. The viscosity of the ETC coating composition is from 2 cP to 30 cP. The method further includes inkjet printing the ETC coating composition onto the surface of the substrate and curing the ETC coating composition to produce the ETC coating. Inkjet printing increases the durability and uniformity of the ETC coating.

Abstract: An article that includes: an inorganic oxide substrate having opposing major surfaces; and an optical film structure disposed on a first major surface of the substrate, the optical film structure comprising one or more of a silicon-containing oxide, a silicon-containing nitride and a silicon-containing oxynitride and a physical thickness from about 50 nm to less than 500 nm. The article exhibits a hardness of 8 GPa or greater measured at an indentation depth of about 100 nm or a maximum hardness of 9 GPa or greater measured over an indentation depth range from about 100 nm to about 500 nm, the hardness and the maximum hardness measured by a Berkovich Indenter Hardness Test. Further, the article exhibits a single-side photopic average reflectance that is less than 1%.

Abstract: An article is described herein that includes: a translucent substrate having a major surface; and an anti-reflective coating disposed on the major surface and forming an anti-reflective surface. The article exhibits a single side average photopic light reflectance at the anti-reflective surface of less than 0.35%. Further, the article exhibits a single side color shift (?C) of less than 6 over an incident angle range from 0 degrees to 60 degrees incidence at the anti-reflective surface, wherein the anti-reflective coating comprises a physical thickness from about 50 nm to less than 500 nm. In addition, the anti-reflective coating comprises a plurality of layers that comprises at least one low refractive index layer and at least one high refractive index layer. Further, each high refractive index layer has a refractive index of greater than 2.0 and each low refractive index layer has a refractive index of less than 1.7.

Abstract: A cover glass article is described herein that includes: a substrate comprising an outer primary surface with an outer optical film structure disposed thereon and an inner primary surface with an inner optical film structure disposed thereon. The outer film structure comprises a first plurality of alternating high index and low index layers with an outermost low index layer. The inner film structure comprises a second plurality of alternating high index and low index layers with a low or high index layer disposed on the inner primary surface, and an innermost low or high index layer. Each high index layer of the first and the second plurality comprises a nitride or an oxynitride, and an oxide or a nitride, respectively. Further, the cover glass article exhibits an average photopic transmittance of greater than 95% and a maximum hardness of greater than 10 GPa.