Patent application number | Description | Published |
20080213482 | Method of making a mask for sealing a glass package - A method of making a mask for frit sealing a glass envelope comprising depositing a paste onto a glass substrate, depositing a metallic layer overtop the substrate and paste, and removing the paste and a portion of the metallic layer. The paste may be, for example, a glass frit. | 09-04-2008 |
20080292845 | Glass article having a laser melted surface - A glass article having at least one edge of which at least a portion has been laser melted. The laser melted portion scatters light, thus enabling the glass article to be properly aligned. In some embodiments, the laser melted portion also provides a roughened edge having a coefficient of friction that facilitates handling of the glass article. The laser melted portion is formed by irradiating the peripheral surface with a laser beam to cause localized melting. | 11-27-2008 |
20090142984 | Methods and apparatus for packaging electronic components - Packages for elements, e.g., OLEDs, that are temperature sensitive are provided. The packages have a first glass substrate ( | 06-04-2009 |
20090295277 | Glass packages and methods of controlling laser beam characteristics for sealing them - A display device ( | 12-03-2009 |
20100050692 | Laser Patterning of Glass Bodies - A method for laser patterning of a glass body, the method comprising the steps of:
| 03-04-2010 |
20100107525 | Vacuum-Insulated Glass Windows With Glass-Bump Spacers - Vacuum-insulated glass (VIG) windows ( | 05-06-2010 |
20100118912 | QUALITY CONTROL OF THE FRIT FOR OLED SEALING - A method of finding defects in sealing material formed as a frame line on a glass plate includes irradiating the frame line of sealing material. A temperature of the irradiated sealing material is measured and a change of the temperature caused by a nonuniformity in sealing material is detected. Another aspect features a method of hermetically sealing a thin film device between glass plates. Sealing material is dispensed on a cover glass plate in the form of a frame line cell. The sealing material is pre-sintered onto the cover glass plate and cooled. A laser beam is moved around the frame line on the sealing material. A temperature of the sealing material contacted with the laser beam is measured. A change in the temperature (ΔT) caused by a nonuniformity in the sealing material is measured. Further aspects include a feedback process, infrared imaging and use of delta temperature data to increase sensitivity of temperature measurement data. | 05-13-2010 |
20100126898 | Hermetically Sealed Glass Package and Method of Manufacture - A method for manufacturing a hermetically sealed package is provided, the method comprising the steps of: using a laser to heat a frit, disposed in a pattern between two substrates, such that the heated frit forms a hermetic seal which connects the substrates and further comprising: directing the laser to enter the frit pattern, then to trace the frit pattern, then to retrace a portion of the frit pattern, and then to exit the frit pattern; and selecting an initial laser power which, when the laser enters the frit pattern, is insufficient to heat the frit to form a hermetic seal; then increasing the laser power over a first section of the frit pattern to a target laser power at least sufficient to heat the frit to form a hermetic seal; and then decreasing the laser power over a second section of the frit pattern until the laser power is insufficient to heat the frit to form a hermetic seal before the laser exits the frit pattern. | 05-27-2010 |
20100129666 | LASER ASSISTED FRIT SEALING OF HIGH CTE GLASSES AND THE RESULTING SEALED GLASS PACKAGE - A laser assisted frit sealing method is described herein that is used to manufacture a glass package having a first glass plate (with a relatively high CTE of about 80-90×10 | 05-27-2010 |
20100154476 | System and Method for Frit Sealing Glass Packages - A sealing device and method are described herein that can be used to manufacture a hermetically sealed glass package. In one embodiment, the hermetically sealed glass package is suitable to protect thin film devices which are sensitive to the ambient environment (e.g., oxygen, moisture). Some examples of such glass packages are organic emitting light diode (OLED) displays, sensors, and other optical devices. The present invention is demonstrated using an OLED display as an example. | 06-24-2010 |
20110001424 | SEAL FOR LIGHT EMITTING DISPLAY DEVICE, METHOD, AND APPARATUS - A glass package is disclosed comprising a first substrate and a second substrate, where the substrates are attached in at least two locations, at least one attachment comprising a frit, and at least one attachment comprising a polymeric adhesive and wherein the frit comprises a glass portion comprising: a base component comprising and at least one absorbing component. Also disclosed is a method of sealing a light emitting display device comprising providing a light emitting layer, a first substrate and a second substrate, where a frit is deposited between the substrates and a polymeric adhesive is deposited either between the substrates or around the edge of the device, and where the frit is sealed with a radiation source and the polymeric adhesive is cured. | 01-06-2011 |
20110037383 | METHODS AND APPARATUS FOR PACKAGING ELECTRONIC COMPONENTS - Packages for elements, e.g., OLEDs, that are temperature sensitive are provided. The packages have a first glass substrate ( | 02-17-2011 |
20110039072 | RAISED FEATURES ON TRANSPARENT SUBSTRATES AND RELATED METHODS - Raised features are formed on a transparent substrate having absorption of less than about 20% within a processing wavelength range. A portion of the substrate is irradiated with a light beam to increase the absorption of the irradiated portion of the substrate. Continued irradiation causes local heating and expansion of the substrate so as to form a raised feature on the substrate surface. | 02-17-2011 |
20110100058 | FORMATION OF GLASS BUMPS WITH INCREASED HEIGHT USING THERMAL ANNEALING - The disclosure teaches methods of forming at least one bump in a glass substrate having a surface and a body portion. The method includes performing a first irradiation of a portion of the glass substrate to form in the glass surface the at least one bump having bump height. The method also includes performing thermal annealing of at least a portion of the glass substrate that includes the first irradiated portion. The method then includes performing a second irradiation of the bump to increase the bump height. | 05-05-2011 |
20110135857 | METHOD FOR SEALING A LIQUID WITHIN A GLASS PACKAGE AND THE RESULTING GLASS PACKAGE - A method for sealing a liquid within a glass package and the resulting sealed glass package are described herein where the sealed glass package can be, for example, a dye solar cell, an electro-wetting display or an organic emitting light diode (OLED) display. | 06-09-2011 |
20110305035 | Optical Fiber Illumination Systems and Methods - An illumination system generating light having at least one wavelength within 200 nm a plurality of nano-sized structures (e.g., voids). The optical fiber coupled to the light source. The light diffusing optical fiber has a core and a cladding. The plurality of nano-sized structures is situated either within said core or at a core-cladding boundary. The optical fiber also includes an outer surface. The optical fiber is configured to scatter guided light via the nano-sized structures away from the core and through the outer surface, to form a light-source fiber portion having a length that emits substantially uniform radiation over its length, said fiber having a scattering-induced attenuation greater than 50 dB/km for the wavelength(s) within 200 nm to 2000 nm range. | 12-15-2011 |
20120275178 | LIGHT-COUPLING OPTICAL SYSTEMS AND METHODS EMPLOYING LIGHT-DIFFUSING OPTICAL FIBERT - Light-coupling systems and methods that employ light-diffusing optical fiber are disclosed. The systems include a light source and a light-diffusing optical fiber optically coupled thereto. The light-diffusing optical fiber has a core, a cladding and a length. At least a portion of the core comprises randomly arranged voids configured to provide substantially spatially continuous light emission from the core and out of the cladding along at least a portion of the length. A portion of the light-diffusing optical is embedded in an index-matching layer disposed adjacent a lower surface of a transparent sheet. Light emitted by the light-diffusing optical fiber is trapped within the transparent sheet and index-matching layer by total internal reflection and is scattered out of the upper surface of the transparent sheet by at least one scattering feature thereon. | 11-01-2012 |
20120275180 | Light Diffusing Fibers and Methods for Making the Same - Light diffusing optical fibers and methods for producing light diffusing optical fibers are disclosed. In one embodiment, a light diffusing optical fiber includes a core portion formed from silica glass and comprising a plurality of helical void randomly distributed in the core portion of the optical fiber and wrapped around the long axis of the optical fiber. A pitch of the helical voids may vary along the axial length of the light diffusing optical fiber in order to achieve the desired illumination along the length of the optical fiber. A cladding may surround the core portion. Light guided by the core portion is scattered by the helical voids radially outward, through the cladding, such that the light diffusing optical fiber emits light with a predetermined intensity over an axial length of the light diffusing optical fiber, the light diffusing optical fiber having a scattering induced attenuation loss greater than about 0.2 dB/m at a wavelength of 550 nm. | 11-01-2012 |
20120275745 | Systems and Methods for Coupling Light into a Transparent Sheet - Systems and methods for coupling light into a transparent sheet. The systems include a light source and a light-diffusing optical fiber optically coupled to the light source. The light-diffusing optical fiber has a core, a cladding and a length, with at least a portion of the core comprising randomly arranged voids configured to provide substantially continuous light emission from the core and out of the cladding along at least a portion of the length, and into the transparent sheet. | 11-01-2012 |
20130088888 | Optical Fiber Illumination Systems and Methods - An illumination system that includes at least one light-diffusing optical fiber is disclosed. The illumination system includes at least one low-scatter light-conducting optical fiber that optically couples the at least one light-diffusing optical fiber to at least one light source. The light-diffusing optical fiber includes a light-source fiber portion having a length over which scattered light is continuously emitted. The light-source fiber portion can be bent, including wound into a coil shape. The light-diffusing optical fiber includes a plurality of nano-sized structures configured to scatter guided light traveling within the light-diffusing optical fiber out of an outer surface of the fiber. | 04-11-2013 |
20130090402 | SYSTEMS AND METHODS FOR PERFORMING PHOTOREACTIONS USING LIGHT-DIFFUSING OPTICAL FIBER - Systems and methods for performing photoreactions in a photoreactive material using scattered actinic light from at least one light-diffusing optical fiber are disclosed. The systems and methods include disposing a light-diffusing optical fiber relative to the photoreactive material. The light-diffusing optical fiber has a glass core, a surrounding cladding, and nano-sized structures situated either within the glass core or at the core-cladding boundary. The nano-sized structures are configured to scatter guided actinic light that travels in the light-diffusing optical fiber from an actinic light source. The scattered actinic light is provided throughout the photoreactive material and causes a photoreaction throughout the photoreactive material. | 04-11-2013 |
20130125516 | HERMETICALLY SEALED GLASS PACKAGE AND METHOD OF MANUFACTURE - A method for manufacturing a hermetically sealed package is provided, using a laser to heat a frit, disposed in a pattern between two substrates, such that the heated frit forms a hermetic seal which connects the substrates. | 05-23-2013 |
20130156391 | UNIFORM WHITE COLOR LIGHT DIFFUSING FIBER - Light diffusing optical fibers for use in illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including both a scattering layer and a phosphor layer. | 06-20-2013 |
20130156392 | UNIFORM UV EFFICIENT LIGHT DIFFUSING FIBER - Light diffusing optical fibers for use in ultraviolet illumination applications and which have a uniform color gradient that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including a scattering layer. | 06-20-2013 |
20130221237 | LAMINATED GLASS SHEET DEPTH PROFILE DETERMINATION - Depth-sensitive fluorescent spectroscopy can be executed by directing UV radiation through a face of a laminated glass sheet to induce distinct fluorescence in respective target layers of the laminated glass sheet. The respective target layers define glass compositions and relative indices of refraction that permit formation of an externally-viewable fluorescent intensity profile across the target layers of the laminated glass sheet. In an alternative embodiment, non-UV laser radiation is directed from a non-UV laser radiation source through a face of the laminated glass sheet to define a series of multi-photon focal points in the laminated glass sheet and induce fluorescence in respective ones of the plurality of target layers of the laminated glass sheet at a UV excitation frequency that exceeds the frequency of the radiation source. | 08-29-2013 |
20130223922 | LOW Tg GLASS GASKET FOR HERMETIC SEALING APPLICATIONS - A glass-coated gasket comprises a gasket main body defining an inner hole and having a first contact surface and a second contact surface opposite the first contact surface, and a glass layer formed over at least a portion of one of the first contact surface and the second contact surface. The glass layer comprises a low melting temperature glass. A hermetic package comprises a substrate/glass-coated gasket/substrate structure that can be sealed using a thermo-compressive sealing step. | 08-29-2013 |
20130224492 | ION EXCHANGED GLASSES VIA NON-ERROR FUNCTION COMPRESSIVE STRESS PROFILES - Glasses with compressive stress profiles that allow higher surface compression and deeper depth of layer (DOL) than is allowable in glasses with stress profiles that follow the complementary error function at a given level of stored tension. In some instances, a buried layer or local maximum of increased compression, which can alter the direction of cracking systems, is present within the depth of layer. Theses compressive stress profiles are achieved by a three step process that includes a first ion exchange step to create compressive stress and depth of layer that follows the complimentary error function, a heat treatment at a temperature below the strain point of the glass to partially relax the stresses in the glass and diffuse larger alkali ions to a greater depth, and a re-ion-exchange at short times to re-establish high compressive stress at the surface. | 08-29-2013 |
20130272014 | MULTI-WAVELENGTH LIGHT SOURCE USING LIGHT DIFFUSING FIBERS - At least one flexible light diffusing waveguide is arranged to define a plurality of light diffusing waveguide segments arranged substantially parallel to one another, and is coupled to at least one light source to provide a flexible light panel suitable for general lighting purposes or for use as a backlight in a display, such as a video display. Multiple waveguides can be coupled to different color light sources to provide a multi-colored flexible backlight that is usable in combination with a flexible matrix-addressable panel to provide a flexible video display. | 10-17-2013 |
20130294106 | LIGHT-COUPLING OPTICAL SYSTEMS AND METHODS EMPLOYING LIGHT-DIFFUSING OPTICAL FIBER - Light-coupling systems and methods that employ light-diffusing optical fiber are disclosed. The systems include a light source and a light-diffusing optical fiber optically coupled thereto. The light-diffusing optical fiber has a core, a cladding and a length. At least a portion of the core comprises randomly arranged voids configured to provide substantially spatially continuous light emission from the core and out of the cladding along at least a portion of the length. A portion of the light-diffusing optical is embedded in an index-matching layer disposed adjacent a lower surface of a transparent sheet. Light emitted by the light-diffusing optical fiber is trapped within the transparent sheet and index-matching layer by total internal reflection and is scattered out of the upper surface of the transparent sheet by at least one scattering feature thereon. | 11-07-2013 |
20140063838 | FLAME RETARDANT LIGHT DIFFUSING FIBER - This disclosure is directed to lighting diffusing fibers (LDFs) having a flame retardant coating thereon. The LDFs comprise a glass RAL fiber core having a primary polymer coating of a clear, colorless polymeric material having an index of refraction less than that of the glass fiber core and a flame retardant coating applied over the primary coating. The flame retardant coating consist of approximately 35-85 wt. % UV curable polymer forming monomers and 15-65 wt. % of an inorganic, halogen free filler, along with at least one photoinitiator and an antioxidant. In an embodiment phosphor-containing polymer layer can be applied between the primary coating and the flame retardant coating. In another embodiment the phosphor can be added to the flame retardant coating. | 03-06-2014 |
20140092623 | MANIPULATION OF COLOR ILLUMINATION USING LIGHT DIFFUSING FIBER - An illuminated color display panel having at least one light diffusing waveguide, and a transparent panel having at least one luminophore provided in a predetermined pattern on at least one major planar surface of the transparent panel is provided. Light from at least one light source is coupled to the waveguide and light from the waveguide is coupled to the panel at or adjacent at least one edge of the panel. The resulting illuminated color display panel is useful for general lighting purposes and signage. | 04-03-2014 |
20140140090 | Manipulation of Color Illumination using Light Diffusing Fiber - An illuminated color displaying device having at least one light diffusing waveguide coupled to a plurality of different light sources emitting light at different wavelengths, to provide color modulation. | 05-22-2014 |
20140151742 | GLASS SEALING WITH TRANSPARENT MATERIALS HAVING TRANSIENT ABSORPTION PROPERTIES - Transparent glass-to-glass hermetic seals are formed by providing a low melting temperature sealing glass along a sealing interface between two glass substrates and irradiating the interface with laser radiation. Absorption by the sealing glass and induced transient absorption by the glass substrates along the sealing interface causes localized heating and melting of both the sealing glass layer and the substrate materials, which results in the formation of a glass-to-glass weld. Due to the transient absorption by the substrate material, the sealed region is transparent upon cooling. | 06-05-2014 |
20140198520 | LIGHT DIFFUSING OPTICAL FIBER BUNDLES, ILLUMINATION SYSTEMS INCLUDING LIGHT DIFFUSING OPTICAL FIBER BUNDLES, AND METHODS OF AFFIXING LIGHT DIFFUSING OPTICAL FIBER BUNDLES TO POLYMER OPTICAL FIBERS - Light diffusing optical fiber bundles, illumination systems including light diffusing optical fiber bundles, and methods of affixing light diffusing optical fiber bundles to polymer optical fibers are disclosed. A light diffusing optical fiber bundle includes an optically transmissive jacket and a plurality of light diffusing optical fibers disposed within the optically transmissive jacket. Each of the plurality of light diffusing optical fibers includes a glass core including a plurality of nano-sized voids. The plurality of light diffusing optical fibers extend along a length of the optically transmissive jacket such that the plurality of diffusing optical fibers are not interwoven. | 07-17-2014 |
20140202209 | VACUUM-INSULATED GLASS WINDOWS WITH GLASS-BUMP SPACERS - Vacuum-insulated glass (VIG) windows ( | 07-24-2014 |
20140218958 | UNIFORM ILLUMINATION LIGHT DIFFUSING FIBER - Light diffusing optical fibers for use in ultraviolet illumination applications and which have a uniform intensity that is angularly independent are disclosed herein along with methods for making such fibers. The light diffusing fibers are composed of a silica-based glass core that is coated with a number of layers including a scattering layer. According to some embodiments multiple light diffusing fibers are bundle together and are situated inside a jacket. The jacket may incorporate scattering sites, or may include a scattering layer situated thereon. | 08-07-2014 |
20140242306 | LOW Tg GLASS GASKET FOR HERMETIC SEALING APPLICATIONS - A glass-coated gasket comprises a gasket main body defining an inner hole and having a first contact surface and a second contact surface opposite the first contact surface, and a glass layer formed over at least a portion of one of the first contact surface and the second contact surface. The glass layer comprises a low melting temperature glass. A vacuum insulated glass window comprises a substrate/glass-coated gasket/substrate structure that can be sealed using a thermo-compressive sealing step. | 08-28-2014 |
20140268815 | LIGHT-DIFFUSING ELEMENTS - A light-diffusing element with high coupling efficiency to LED sources. The light-diffusing element may be a glass monolith that includes a plurality of internal voids. When light propagating through the monolith encounters the internal voids, it is scattered in a transverse direction and exits the lateral surface of the monolith to provide a broad-area illumination effect. The glass monolith has a diameter of at least 0.7 mm and features a numerical aperture of at least 0.6 to facilitate efficient coupling to LED sources. The internal voids have a cross-sectional dimension that ranges from about 100 nm to several microns and a length that ranges from about 1 μm to a few millimeters. The light-diffusing element can be configured as a rod or as a bent or arbitrarily-shaped fixture. | 09-18-2014 |
20140355295 | UNIFORM ILLUMINATION LIGHT DIFFUSING FIBER DEVICE - An illumination device comprising: (i) a light diffusing optical fiber having a numerical aperture of NA | 12-04-2014 |
20140363134 | OPTICAL FIBER CABLE ASSEMBLY COMPRISING OPTICAL TRACER FIBER - An optical fiber cable assembly is provided including a tracer light source and an optical tracer fiber physically coupled to or surrounded by the cable jacket and defining a tracer scattering profile comprising a relatively high scattering loss at a tracer wavelength or wavelength range λ | 12-11-2014 |
20150027168 | LASER WELDING TRANSPARENT GLASS SHEETS USING LOW MELTING GLASS OR THIN ABSORBING FILMS - A method of sealing a workpiece comprising forming an inorganic film over a surface of a first substrate, arranging a workpiece to be protected between the first substrate and a second substrate wherein the inorganic film is in contact with the second substrate; and sealing the workpiece between the first and second substrates as a function of the composition of impurities in the first or second substrates and as a function of the composition of the inorganic film by locally heating the inorganic film with a predetermined laser radiation wavelength. The inorganic film, the first substrate, or the second substrate can be transmissive at approximately 420 nm to approximately 750 nm. | 01-29-2015 |
20150043875 | OPTICAL FIBER CABLE ASSEMBLY COMPRISING OPTICAL TRACER FIBER - An optical fiber cable assembly includes an optical tracer fiber, an optical data transmission fiber, and a cable jacket. The optical tracer fiber defines a tracer scattering profile having a scattering loss of >15 dB/km at a tracer wavelength or wavelength range λ | 02-12-2015 |
20150055915 | LIGHT-COUPLING APPARATUS AND METHODS FOR LIGHT-DIFFUSING OPTICAL FIBERS - Light-coupling apparatus and methods for light-diffusing optical fibers are disclosed. The light-coupling apparatus includes a light-diffusing fiber bundle having an end section made up of tightly packed cores by removing the claddings. The spaces between the cores are filled with a material having a refractive index equal to or less than that of the cores. A light-emitting diode light source can be butt-coupled to the bundled-core end of the light-diffusing fiber bundle or can be coupled thereto via a reflective concentrator. A method of forming a flat and smooth end on a cleaved fiber that has a rough end is also disclosed. | 02-26-2015 |