Abstract: An optical construction includes a lens layer and optically opaque first and second mask layers. The lens layer has a first major surface including a plurality of microlenses arranged along orthogonal first and second directions. The first and second mask layers are spaced apart from the first major surface and define respective pluralities of through first and second openings therein arranged along the first and second directions. The first mask layer is disposed between the structured first major surface and the second mask layer. There is a one-to-one correspondence between the microlenses and the first and second openings. The optical construction includes an intermediate layer disposed between the structured first major surface and the first mask layer and including an undulating second major surface facing, and in substantial registration with, an undulating third major surface of first mask layer so as to define a substantially uniform spacing therebetween.

Abstract: Ultraviolet light shielding articles are provided. An ultraviolet light shielding article includes a flexible substrate having a major surface and a multilayer optical film disposed on the major surface of the substrate. The multilayer optical film is comprised of at least a plurality of alternating first and second inorganic optical layers collectively reflecting and absorbing at an incident light angle of at least one of 0°, 15°, 30°, 45°, 60°, or 75°, an average of at least 50, 60, 70, 80, 90, or 95 percent of incident ultraviolet light over at least a 30-nanometer wavelength reflection bandwidth in a wavelength range from 190 nanometers (nm) to 400 nm. Solar cell covers including an ultraviolet shielding articles are also provided.

Abstract: Articles are provided including a first fluoropolymer substrate having a tetrafluoroethylene (TFE) content of >10 to <55 mole %; a multilayer optical film disposed on the first substrate; and a second fluoropolymer substrate having a TFE content of >55 mole % disposed on the first fluoropolymer substrate opposite the multilayer optical film. The multilayer optical film is composed of alternating first and second layers of high refractive index material and low refractive index material. The multilayer optical film transmits incident light in a wavelength range from at least 400 nanometers to 700 nanometers. Often, the multilayer optical films reflects or absorbs certain wavelength bands within a wavelength range of 190 to 320 nanometers.

Abstract: Structured ultraviolet light shielding articles are provided. A structured ultraviolet light shielding article includes a microstructured film having a first major surface and an opposing second major surface, in which the first major surface includes microstructures projecting therefrom; and a multilayer optical film disposed on the microstructures. At least some of the microstructures each has a surface whose slope causes light that is normally incident to the first major surface of the microstructured film to intercept the first major surface or the surface of at least one other microstructure after reflection.

Abstract: Structured transfer articles and articles are provided. A transfer article includes a microstructured film including microstructures projecting therefrom. The transfer article further includes a metal or doped semiconductor release layer on the microstructures; a (co)polymer layer on the release layer opposite the microstructured film; and optionally a multilayer optical film on the (co) polymer layer opposite the release layer. The multilayer optical film is comprised of one or more alternating first and second inorganic optical layers collectively reflecting and absorbing light that is normally incident to the first major surface of the microstructured film, an average of at least 50 percent of incident ultraviolet light over at least a 30-nanometer wavelength reflection bandwidth in a wavelength range from 190 nanometers (nm) to 400 nm.

Abstract: An optical construction includes a lens layer and optically opaque first and second mask layers. The lens layer has a first major surface including a plurality of microlenses arranged along orthogonal first and second directions. The first and second mask layers are spaced apart from the first major surface and define respective pluralities of through first and second openings therein arranged along the first and second directions. The first mask layer is disposed between the structured first major surface and the second mask layer. There is a one-to-one correspondence between the microlenses and the first and second openings. The optical construction includes an intermediate layer disposed between the structured first major surface and the first mask layer and including an undulating second major surface facing, and in substantial registration with, an undulating third major surface of first mask layer so as to define a substantially uniform spacing therebetween.

Abstract: Intramedullary nails, systems, and methods. The intramedullary nail may include a generally elongate body extending from a first, distal end to a second, proximal end. The distal end may include one or more openings configured to receive one or more bone anchors that extend transversely through the distal end intramedullary nail, and thereby configured to secure the distal end of the nail. The proximal end may also include one or more openings configured to receive one or more bone anchors that extend transversely through the proximal end of the intramedullary nail, and thereby configured to secure the proximal end of the nail. In some embodiments, the proximal end may further include a cross-locking feature, which includes a second bone anchor that interlocks with a first bone anchor, for example, for enhanced bone purchase and bony fixation.

Abstract: Intramedullary nails, systems, and methods. The intramedullary nail may include a generally elongate body extending from a first, distal end to a second, proximal end. The distal end may include one or more openings configured to receive one or more bone anchors that extend transversely through the distal end intramedullary nail, and thereby configured to secure the distal end of the nail. The proximal end may also include one or more openings configured to receive one or more bone anchors that extend transversely through the proximal end of the intramedullary nail, and thereby configured to secure the proximal end of the nail.

Abstract: A packaged abrasive article comprises an abrasive article hermetically sealed within a bag. The abrasive article comprises abrasive particles at least partially retained in a phenolic binder. The bag comprises a multilayer barrier film that comprises: a first substrate layer; a first polymerized acrylic layer disposed on the first substrate layer; an aluminosilicate layer disposed on the first polymerized acrylic layer; and a second polymerized acrylic layer disposed on the aluminosilicate layer.

Abstract: Light shielding articles are provided. Light shielding articles include a first multilayer optical film comprised of alternating first and second polymeric optical layers collectively reflecting at an incident light angle of at least one of 0°, 15°, 30°, 45°, 60°, or 75°, an average of at least 70, 80, 90, or 95 percent of incident visible light over at least a wavelength range from 400 nanometers (nm) to 700 nm. The light shielding articles further include either a second multilayer optical film or a barrier coating disposed on the first multilayer optical film. The light shielding article transmits at an incident light angle of at least one of 0°, 15°, 30°, 45°, 60°, or 75°, an average of at least 70, 80, 90, or 95 percent of incident radio frequency waves in at least one wavelength range from 1 mm to 10 mm, 10 mm to 100 mm, or 100 mm to 1000 mm.

Abstract: Intramedullary nails, systems, and methods. The intramedullary nail may include a generally elongate body extending from a first, distal end to a second, proximal end. The distal end may include one or more openings configured to receive one or more bone anchors that extend transversely through the distal end intramedullary nail, and thereby configured to secure the distal end of the nail. The proximal end may also include one or more openings configured to receive one or more bone anchors that extend transversely through the proximal end of the intramedullary nail, and thereby configured to secure the proximal end of the nail.

Abstract: A retroreflective article comprises a binder layer and a plurality of retroreflective elements, each retroreflective element comprising a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements comprise a first locally laminated layer and a second locally laminated layer that may be reflective layers. A transfer article comprises a disposable carrier layer in which the retroreflective article is detachably disposed with at least some of the transparent microspheres in contact with the disposable carrier layer.

Abstract: A capnography mask includes a mask body having a cover portion configured to cover at least the nostrils of a patient's nose and forms a breathing cavity for inhalation of inflow gas and exhalation of expired gas. The mask also includes an inflow port fluidly connected to the breathing cavity for delivering the inflow gas to the breathing cavity, an outflow port fluidly connected to the breathing cavity for delivering the expired gas out of the breathing cavity, and a capnography port fluidly connected to the breathing cavity for delivering a sample of the expired gas to a capnography machine. The inflow, outflow and capnography ports may be unitarily formed by respective portions of the mask body to form a unitary mask structure. The ports may include respective tube segments that may cooperate with respective ribs to distribute load away from the alar fibrofatty tissue of the patient's nose, thereby improving comfort.

Abstract: Barrier films including a (co)polymeric substrate, at least one dyad on the substrate, each dyad made of a (co)polymer layer and an oxide layer overlaying the (co)polymer layer, and an outer (co)polymer layer overlaying the dyads. Optionally, at least one outer oxide layer overlays the outer (co)polymer layer. The barrier films transmit visible light and transmits, at an incident light angle of at least one of 0°, 30°, 45°, 60°, or 75°, at most 70 percent of incident ultraviolet light at a wavelength range from at least 100 nanometers to 400 nanometers or in a wavelength range from at least 100 nm to 350 nm. The barrier films exhibit atomic oxygen degradation of less than 1×10?20 mg/atom. The barrier films may be applied to decorative objects or electronic devices, (e.g., light receiving or emitting devices, in a satellite or aircraft. Methods of making the barrier films also are disclosed.

Abstract: At least some embodiments of the present disclosure an electrostatic sheet jamming device comprising a first sheet having a first conductive layer, a first dielectric layer disposed adjacent to the first conductive layer, and a second sheet comprising a second conductive layer and disposed proximate to the first dielectric layer. The first dielectric layer is disposed between the first conductive layer and the second conductive layer. The first sheet and the second sheet are non-extensible and flexible, wherein the first sheet and the second sheet are slidable relative to each other in a first state. The first sheet and the second sheet are jammed with each other in a second state when a voltage is applied between the first conductive layer and the second conductive layer. In some embodiments, the applied voltage is less than or equal to a break-down voltage of air at a distance between the first conductive layer and the second conductive layer.

Abstract: Intramedullary nails, systems, and methods. The intramedullary nail may include a generally elongate body extending from a first, distal end to a second, proximal end. The distal end may include one or more openings configured to receive one or more bone anchors that extend transversely through the distal end intramedullary nail, and thereby configured to secure the distal end of the nail. The proximal end may also include one or more openings configured to receive one or more bone anchors that extend transversely through the proximal end of the intramedullary nail, and thereby configured to secure the proximal end of the nail. In some embodiments, the proximal end may further include a cross-locking feature, which includes a second bone anchor that interlocks with a first bone anchor, for example, for enhanced bone purchase and bony fixation.

Abstract: Ultraviolet light shielding articles are provided. An ultraviolet light shielding article includes a flexible substrate having a major surface and a multilayer optical film disposed on the major surface of the substrate. The multilayer optical film is comprised of at least a plurality of alternating first and second inorganic optical layers collectively reflecting and absorbing at an incident light angle of at least one of 0°, 15°, 30°, 45°, 60°, or 75°, an average of at least 50, 60, 70, 80, 90, or 95 percent of incident ultraviolet light over at least a 30-nanometer wavelength reflection bandwidth in a wavelength range from 190 nanometers (nm) to 400 nm. Solar cell covers including an ultraviolet shielding articles are also provided.

Abstract: Intramedullary nails, systems, and methods. The intramedullary nail may include a generally elongate body extending from a first, distal end to a second, proximal end. The distal end may include one or more openings configured to receive one or more bone anchors that extend transversely through the distal end intramedullary nail, and thereby configured to secure the distal end of the nail. The proximal end may also include one or more openings configured to receive one or more bone anchors that extend transversely through the proximal end of the intramedullary nail, and thereby configured to secure the proximal end of the nail. In some embodiments, the proximal end may further include a cross-locking feature, which includes a second bone anchor that interlocks with a first bone anchor, for example, for enhanced bone purchase and bony fixation.

Abstract: A packaged abrasive article comprises an abrasive article hermetically sealed within a bag. The abrasive article comprises abrasive particles at least partially retained in a phenolic binder. The bag comprises a multilayer barrier film that comprises: a first substrate layer; a first polymerized acrylic layer disposed on the first substrate layer; an aluminosilicate layer disposed on the first polymerized acrylic layer; and a second polymerized acrylic layer disposed on the aluminosilicate layer.

Abstract: Methods of making metal patterns on flexible substrates are provided. A releasable solid layer is selectively formed on a patterned surface of the flexible substrate by applying a liquid solution thereon. The releasable solid layer is transferred from the patterned surface to a transfer layer where the metal patterns are formed.