Abstract:
Described herein are deadfront assemblies that are configured to exhibit variable transmission and reflection performance attributes. The deadfront assemblies described herein comprise a first ink layer, an intermediate layer, and a second ink layer. The intermediate layer is disposed between the first and second ink layers and is configured to reflect light that is transmitted through the first ink layer back through the first ink layer so that one or more colors of the ink in the first ink layer is visible in the reflected light. The second ink layer is configured to counteract deviations in optical transmission caused by the first ink layer so that light transmitted through the deadfront assembly is not perceptively altered in color. Overlapping regions of the first and second ink layers comprise inverse appearance attributes so that light output from a light source and transmitted through the deadfront assembly has a desired appearance.
Abstract:
Disclosed herein are light guide plates (100, 100′, 100″) comprising a transparent substrate (110) having an edge surface in (150), a light emitting first major surface (160), and an opposing second major surface (170); and a polymeric film (120) disposed on at least one of the first (160) and second (170) major surfaces of the transparent substrate, wherein the polymeric film (120) comprises a plurality of microstructures (130) and/or a plurality of light extraction features. At least one light source (140) may be coupled to the edge surface (150) of the transparent substrate (110). Display and lighting devices comprising such light guide plates are further disclosed, as well as methods for manufacturing such light guide plates.
Abstract:
Optical stacks including a grating structure that generates diffraction in two in-plane dimensions. The optical stacks may include two gratings, which may be one-directional or two-directional. The optical stacks are suitable for reducing sparkle in displays.
Abstract:
A backlight unit comprising a first optical component having a first major face and a second major face, a second optical component laminated having a third major face and a fourth major face, wherein the first and third major faces oppose each other, and a discontinuous bonding material deposited between the first and third major faces, the bonding material laminating the first and second optical components.
Abstract:
An optical fiber comprising: (i) a core comprising silica and having a maximum relative refractive index delta Δ1MAX; and LP01 effective area >100 μm2 at 1550 nm; (ii) an inner cladding surrounding the core and having a minimum relative refractive index delta Δ2MIN and ΔcoreMAX>Δ2MIN; (iii) an outer cladding surrounding the inner cladding and comprising a first outer cladding portion with a maximum refractive index Δ3A such that Δ3A>Δ2MIN; and another outer cladding portion surrounding the first outer cladding portion with a maximum refractive index delta Δ3B wherein with a maximum refractive index delta Δ3B wherein Δ3B>Δ3A, said another portion being the outermost portion of the outer cladding; and (iv) a coating layer surrounding the outer cladding, and in contact with said another outer cladding portion, the coating layer having a relative refractive index delta ΔC wherein ΔC>Δ3B.
Abstract:
Embodiments are directed to systems for laser cutting at least one glass article comprising a pulsed laser assembly and a glass support assembly configured to support the glass article during laser cutting within the pulsed laser assembly, wherein the pulsed laser assembly comprise at least one non-diffracting beam (NDB) forming optical element configured to convert an input beam into a quasi-NDB beam; and at least one beam transforming element configured to convert the quasi-NDB beam into multiple quasi-NDB sub-beams spaced apart a distance of about 1 μm to about 500 μm; wherein the pulsed laser assembly is oriented to deliver one or more pulses of multiple quasi-NDB sub-beams onto a surface of the glass article, wherein each pulse of multiple quasi-NDB sub-beams is operable to cut a plurality of perforations in the glass article.
Abstract:
A distortion-reducing anti-glare (DRAG) structure is disclosed, wherein the DRAG structure includes first and second transparent mediums. The first transparent medium has a first refractive index and a first light-scattering anti-glare (AG) surface. The first AG surface by itself reduces glare but introduces an amount of distortion to the transmitted light. A second transparent medium having a second refractive index greater than the first refractive index is selectively added to the first transparent medium to reduce the amount of distortion in the transmitted light.
Abstract:
A light-transmitting structure comprising a substrate having a plurality of regions where at least two of the plurality of regions have different refractive indices, an optical path length of light transmitted from a first light source through the plurality of regions is substantially constant, and where light transmitted from a second light source into the substrate is scattered by at least one of the plurality of regions.
Abstract:
Described herein are deadfront assemblies that are configured to exhibit variable transmission and reflection performance attributes. The deadfront assemblies described herein comprise a first ink layer, an intermediate layer, and a second ink layer. The intermediate layer is disposed between the first and second ink layers and is configured to reflect light that is transmitted through the first ink layer back through the first ink layer so that one or more colors of the ink in the first ink layer is visible in the reflected light. The second ink layer is configured to counteract deviations in optical transmission caused by the first ink layer so that light transmitted through the deadfront assembly is not perceptively altered in color. Overlapping regions of the first and second ink layers comprise inverse appearance attributes so that light output from a light source and transmitted through the deadfront assembly has a desired appearance.
Abstract:
Described herein are deadfront assemblies that are configured to exhibit variable transmission and reflection performance attributes. The deadfront assemblies described herein comprise a first ink layer, an intermediate layer, and a second ink layer. The intermediate layer is disposed between the first and second ink layers and is configured to reflect light that is transmitted through the first ink layer back through the first ink layer so that one or more colors of the ink in the first ink layer is visible in the reflected light. The second ink layer is configured to counteract deviations in optical transmission caused by the first ink layer so that light transmitted through the deadfront assembly is not perceptively altered in color. Overlapping regions of the first and second ink layers comprise inverse appearance attributes so that light output from a light source and transmitted through the deadfront assembly has a desired appearance.