Abstract:
A glass molding system and a method of making glass articles using the glass molding system are disclosed. The glass molding system includes an indexing table, a plurality of enclosures arranged along the indexing table, and a plurality of stations defined on the indexing table such that each of the stations is selectively indexable with any one of the enclosures. At least one radiant heater is arranged in each of the enclosures. A radiation reflector surface and a radiation emitter body are arranged in each of the enclosures. The radiation emitter body is between the at least one radiant heater and the radiation reflector surface and has a first surface in opposing relation to the at least one radiant heater and a second surface in opposing relation to the radiation reflector surface.
Abstract:
An apparatus (10) for treating a substantially planar glass sheet (30) that is positioned in a substantially vertical plane. In one aspect, the glass sheet is for an LCD display. The glass treatment apparatus includes a washing section (200), a rinsing section (300), a drying section (400), and bottom rollers (510) to move the glass sheet therethrough along a conveyance path (100). The washing section includes drive rollers (530, 540) configured to support and drive the glass sheet without causing damage thereto. The rinsing section includes an arrangement of nozzles (310, 320) and liquid bearings (330, 340) for rinsing the glass sheet without causing excessive vibration. And the drying section includes an arrangement of air knives (410, 420) and fluid bearings (440, 450) for drying the glass sheet without causing excessive vibration.
Abstract:
Disclosed are systems for scoring non-flat materials including non-flat glass sheets (1000). In one embodiment, a laser scoring system is described. The laser scoring system includes a laser (102) and an optical head (106). The optical head is configured to receive output from the laser and focus the output into an elongated laser beam having a beam waist and an extended focal depth (116) of greater than +/- 5 mm relative to the center of the beam waist with a power density sufficient for scoring a material having at least a portion within the extended focal depth. In one aspect the system can include a beam expander (104). The beam expander receives the output from the laser, expands the output from the laser to an expanded laser beam, and transmits the expanded laser beam to the optical head.
Abstract:
A lensed fiber includes an optical fiber and a lens formed at a distal end of the optical fiber. The lens has a minimum diameter determined by 2.T.tan(theta), where theta = n.sin (NA) , T is thickness of the lens, n is index of refraction of the lens, and NA is numerical aperture of the optical fiber.
Abstract:
Methods for stripping partially oxidized nitride wear or release coatings from metal workpieces comprise disrupting surface oxidation layers present on the coatings following use, and causing electrical current to flow from the workpiece and release coating to a counter electrode while the workpiece, release coating and counter electrode are immersed in an aqueous alkaline electrolyte solution.
Abstract:
A sheet of brittle material, such as glass, flat or bowed, is separated along a score line by applying vibration energy through a probe into previously scored sheet material. The separation time is less than 1 second with smooth edge quality. The brittle material can be in the form of a moving ribbon of glass sheet, where a vibrational load is applied transverse to the score line to enhance crack propagation along the score line. A controller operates the probe at selected vibration frequencies, amplitudes, contact velocities, contact forces of impact, alignment with the score line, and the like, depending on material properties and structure, and depending on optimal process parameters.
Abstract:
A sheet of brittle material is separated along a score line by applying ultrasonic energy to previously scored sheet material. The brittle material can be in the form of a moving ribbon, wherein a load is applied transverse to the score line to enhance crack propagation along the score line.
Abstract:
A substrate (310) includes an opaque chrome coating (320) on a surface of the substrate (310) dry-etched to form an aperture (340), wherein chrome in the aperture is below detectable limit. A method of forming an opaque chrome coating (320) on a substrate (310) includes depositing an initial thickness of the opaque chrome coating on the substrate without ion-assist or with undetectable ion-assist and depositing the remainder of the opaque chrome coating with or without ion-assist. In one embodiment the invention is directed to an apertured optical element (300) having a substrate transmissive to light (310) and an opaque chrome coating (320) on the substrate defining an aperture (340). Three and four layer opaque coatings of various materials are disclosed, including three layer chrome/chrome oxide/chrome coatings.