Abstract: Methods, systems and apparatuses may provide for technology that renders a plurality of virtual monitors to a head mounted display (HMD), detects a change in gaze direction with respect to the HMD, and conducts a modification of one or more of a refresh rate or a texture capture rate associated with at least one of the plurality of virtual monitors based on the change in gaze direction.

Abstract: Provided herein are measurement systems including a micrometer assembly for receiving a length of tubing, the micrometer assembly including a plurality of non-contact optical micrometers disposed around the length of tubing for measuring an outer diameter (OD) at a first plurality of positions along a circumference of the length of tubing. The measurement system may further include a displacement gauge assembly for receiving the length of tubing from the optical micrometer assembly, the displacement gauge assembly including a plurality of non-contact gauges disposed around the length of tubing for measuring a wall thickness at a second plurality of positions along the circumference of the length of tubing. A controller receives the OD measurements and thickness measurements, and determines an inner diameter and a concentricity of the length of glass tubing based on an index of refraction of the length of glass tubing, the OD measurements, and the thickness measurements.

Abstract: Locally cerammed optically transparent glass-ceramic articles for consumer products. The locally cerammed glass-ceramic articles may have one or more primary glass-ceramic regions including primary crystal phases of a glass-ceramic material and one or more secondary glass-ceramic regions including secondary crystal phases of the glass-ceramic material. The primary glass-ceramic region(s) may be optically transparent and the secondary glass-ceramic region(s) may be non-optically transparent. The primary glass-ceramic region(s) may have a fracture toughness less than the fracture toughness of the secondary glass-ceramic region(s).

Abstract: A forming tool for use during a process of converting a glass tube into a glass container, includes a base portion comprising a fluid cavity for containing a fluid and an insertion portion extending from the base portion. The insertion portion includes an external surface sized to fit into an opening of the glass tube. In embodiments, the insertion portion comprises a fluid opening extending from an interior surface thereof to the external surface, the fluid opening configured to deliver the fluid from the fluid cavity between the insertion portion and the glass tube. In embodiments, the forming tool comprises a thermally conductive insert extending through the base portion and the insertion portion, the thermally conductive insert extending through the fluid cavity such that the fluid in the fluid cavity regulates a temperature of the thermally conductive insert.

Abstract: Thin, multi-focal plane, augmented reality eyewear are disclosed. An example lens structure includes a two-layer waveguide including a first waveguide and a second waveguide. The two-layer waveguide produces a virtual object based on light from an image source. The two-layer waveguide causes the virtual object to appear at a first virtual object focal plane. The first waveguide propagates more of the light in a first wavelength range than in a second wavelength range. The second waveguide propagates more of the light in the second wavelength range than in the first wavelength range. The first wavelength range is associated with longer wavelengths than the second wavelength range. The lens structure further includes an optical lens to cause the virtual object to appear at a second virtual object focal plane associated with a shorter apparent distance from a user than the first virtual object focal plane.

Abstract: Methods for producing glass articles from laminated glass tubing include introducing the glass tubing to a converter. The glass tubing includes a core layer under tensile stress, an outer clad layer under, and an inner clad layer. The methods include forming a feature the glass article at a working end of the laminated glass tubing and separating a glass article from the working end of the laminated glass tubing, which may expose the core layer under tensile stress at the working end of the glass tubing. The method further comprises remediating the exposed portion of the core layer by completely enclosing the core layer in a clad layer. Systems for re-cladding the exposed portion of the core layer as well as glass articles made using the systems and methods are also disclosed.

Abstract: A glass article manufacturing system 20 includes a crucible 44. The crucible 44 includes a barrel 52 and a nozzle 60. The barrel receives a feedstock. A translational stage 92 is positioned below the nozzle of the crucible. The translational stage is movable. A heater 72 is in thermal communication with the nozzle such that thermal energy provided by the heater is transferred to the feedstock. A feeder assembly 32 is positioned proximate the barrel of the crucible such that the feeder assembly feeds the feedstock into the barrel. The translational stage may provide negative pressure to retain a build plate to the translational stage. A preformed component may be positioned on the translational stage.

Abstract: A glass manufacturing apparatus includes a delivery apparatus defining a travel path extending in a first travel direction. The delivery apparatus conveys a stream of molten glass along the travel path. The glass manufacturing apparatus includes a first forming roll and a second forming roll spaced to define a gap that provides a glass ribbon with a width and a thickness. One or more of the first forming roll or the second forming roll include a textured feature that imparts a corresponding textured feature to the glass ribbon. The glass manufacturing apparatus includes a mold defining a mold cavity. The mold is positioned to receive a portion of the glass ribbon to impart a shape to the portion. The glass manufacturing apparatus includes a conveyor that moves the mold in a second travel direction angled relative to the first travel direction. Methods of manufacturing a glass ribbon are provided.

Abstract: Methods for producing glass articles from laminated glass tubing include introducing the glass tubing to a converter. The glass tubing includes a core layer under tensile stress, an outer clad layer under, and an inner clad layer. The methods include forming a feature the glass article at a working end of the laminated glass tubing and separating a glass article from the working end of the laminated glass tubing, which may expose the core layer under tensile stress at the working end of the glass tubing. The method further comprises remediating the exposed portion of the core layer by completely enclosing the core layer in a clad layer. Systems for re-cladding the exposed portion of the core layer as well as glass articles made using the systems and methods are also disclosed.

Abstract: Provided herein are measurement systems including a micrometer assembly for receiving a length of tubing, the micrometer assembly including a plurality of non-contact optical micrometers disposed around the length of tubing for measuring an outer diameter (OD) at a first plurality of positions along a circumference of the length of tubing. The measurement system may further include a displacement gauge assembly for receiving the length of tubing from the optical micrometer assembly, the displacement gauge assembly including a plurality of non-contact gauges disposed around the length of tubing for measuring a wall thickness at a second plurality of positions along the circumference of the length of tubing. A controller receives the OD measurements and thickness measurements, and determines an inner diameter and a concentricity of the length of glass tubing based on an index of refraction of the length of glass tubing, the OD measurements, and the thickness measurements.

Abstract: Methods for producing glass articles from laminated glass tubing include introducing the glass tubing to a converter. The glass tubing includes a core layer under tensile stress, an outer clad layer under, and an inner clad layer. The methods include forming a feature the glass article at a working end of the laminated glass tubing and separating a glass article from the working end of the laminated glass tubing, which may expose the core layer under tensile stress at the working end of the glass tubing. The method further comprises remediating the exposed portion of the core layer by completely enclosing the core layer in a clad layer. Systems for re-cladding the exposed portion of the core layer as well as glass articles made using the systems and methods are also disclosed.

Abstract: Provided herein are measurement systems including a micrometer assembly for receiving a length of tubing, the micrometer assembly including a plurality of non-contact optical micrometers disposed around the length of tubing for measuring an outer diameter (OD) at a first plurality of positions along a circumference of the length of tubing. The measurement system may further include a displacement gauge assembly for receiving the length of tubing from the optical micrometer assembly, the displacement gauge assembly including a plurality of non-contact gauges disposed around the length of tubing for measuring a wall thickness at a second plurality of positions along the circumference of the length of tubing. A controller receives the OD measurements and thickness measurements, and determines an inner diameter and a concentricity of the length of glass tubing based on an index of refraction of the length of glass tubing, the OD measurements, and the thickness measurements.

Abstract: Thin, multi-focal plane, augmented reality eyewear are disclosed. An example lens structure includes a two-layer waveguide including a first waveguide and a second waveguide. The two-layer waveguide produces a virtual object based on light from an image source. The two-layer waveguide causes the virtual object to appear at a first virtual object focal plane. The first waveguide propagates more of the light in a first wavelength range than in a second wavelength range. The second waveguide propagates more of the light in the second wavelength range than in the first wavelength range. The first wavelength range is associated with longer wavelengths than the second wavelength range. The lens structure further includes an optical lens to cause the virtual object to appear at a second virtual object focal plane associated with a shorter apparent distance from a user than the first virtual object focal plane.

Abstract: Methods, systems and apparatuses may provide for technology that renders a plurality of virtual monitors to a head mounted display (HMD), detects a change in gaze direction with respect to the HMD, and conducts a modification of one or more of a refresh rate or a texture capture rate associated with at least one of the plurality of virtual monitors based on the change in gaze direction.

Abstract: The present disclosure is directed to systems and methods for providing an augmented reality system having one or more optical structures capable of resolving virtual objects on one or more virtual object focal planes while providing a sufficient level of transmittivity and optical correction to simultaneously resolve real-world, physical, objects. The lens structures include a plurality of waveguide layers including waveguide layers demonstrating red-green sensitivity and waveguide layers demonstrating blue-green sensitivity. One or more plano-concave lenses may be used to draw virtual objects from a relatively distant first virtual object focal plane to a relatively closer second virtual object focal plane. One or more plano-convex lenses may be used to cause physical objects to appear at a distance from the augmented reality eyewear system approximately equal to the second virtual object focal plane.

Abstract: Locally cerammed optically transparent glass-ceramic articles for consumer products. The locally cerammed glass-ceramic articles may have one or more primary glass-ceramic regions including primary crystal phases of a glass-ceramic material and one or more secondary glass-ceramic regions including secondary crystal phases of the glass-ceramic material. The primary glass-ceramic region(s) may be optically transparent and the secondary glass-ceramic region(s) may be non-optically transparent. The primary glass-ceramic region(s) may have a fracture toughness less than the fracture toughness of the secondary glass-ceramic region(s).

Abstract: Glass-ceramic containers and methods of making glass ceramic containers with high transparency and fracture toughness suitable for use as, for example a beverage or food container, such as for example, a baby bottle or personal hydration bottle. The glass ceramic containers may have an average wall thickness in the range of 1 mm to 2.5 mm and a fracture toughness of 1 MPa*m{circumflex over (?)}½ or more.

Abstract: A laminated or single layer glass cylinder and its method of making are disclosed. The laminated cylinder glass is a precursor component to enable making subsequent drawn tubing having high optical quality. The laminated cylinder glass may comprise a first layer of glass as a clad glass and a second layer of glass as a core glass. The second layer of glass may be bound to the first layer of glass. The second layer may have a higher CTE from about 5×10?7/° C. to about 100×10?7/° C. than the first layer of glass. The first layer and second layer of glass may have different softening points within about 200° C. of each other. In some embodiments, the first layer and second layer of glass may have different softening points from about 50° C. to about 200° C. of each other.

Abstract: A laminated or single layer glass cylinder and its method of making are disclosed. The laminated cylinder glass is a precursor component to enable making subsequent drawn tubing having high optical quality. The laminated cylinder glass may comprise a first layer of glass as a clad glass and a second layer of glass as a core glass. The second layer of glass may be bound to the first layer of glass. The second layer may have a higher CTE from about 5×10?7/° C. to about 100×10?7/° C. than the first layer of glass. The first layer and second layer of glass may have different softening points within about 200° C. of each other. In some embodiments, the first layer and second layer of glass may have different softening points from about 50° C. to about 200° C. of each other.

Abstract: The present disclosure is directed to systems and methods for providing an augmented reality system having one or more optical structures capable of resolving virtual objects on one or more virtual object focal planes while providing a sufficient level of transmittivity and optical correction to simultaneously resolve real-world, physical, objects. The lens structures include a plurality of waveguide layers including waveguide layers demonstrating red-green sensitivity and waveguide layers demonstrating blue-green sensitivity. One or more plano-concave lenses may be used to draw virtual objects from a relatively distant first virtual object focal plane to a relatively closer second virtual object focal plane. One or more plano-convex lenses may be used to cause physical objects to appear at a distance from the augmented reality eyewear system approximately equal to the second virtual object focal plane.