Patent application number | Description | Published |
20080203326 | Method of reducing radiation-induced damage in fused silica and articles having such reduction - A method of repairing radiation-induced damage and reducing accumulated laser-induced wavefront distortion and polarization-induced birefringence in a fused silica article, such as a lens in a DUV optical system, prisms, filters, photomasks, reflectors, etalon plates, and windows. The distortion is reduced by irradiating the fused silica article with an irradiation source, such as an infrared laser. The radiation causes localized heating which repairs at least a portion of the fused silica lens. A fused silica lens that has been treated by the method and a lithographic system are also described. | 08-28-2008 |
20090148627 | DEUTEROXYL-DOPED SILICA GLASS, OPTICAL MEMBER AND LITHOGRAPHIC SYSTEM COMPRISING SAME AND METHOD OF MAKING SAME - What is disclosed includes OD-doped synthetic silica glass capable of being used in optical elements for use in lithography below about 300 nm. OD-doped synthetic silica glass was found to have significantly lower polarization-induced birefringence value than non-OD-doped silica glass with comparable concentration of OH. Also disclosed are processes for making OD-doped synthetic silica glasses, optical member comprising such glasses, and lithographic systems comprising such optical member. The glass is particularly suitable for immersion lithographic systems due to the exceptionally low polarization-induced birefringence values at about 193 nm. | 06-11-2009 |
20110092354 | SYNTHETIC SILICA GLASS WITH UNIFORM FICTIVE TEMPERATURE - A method of making a silica glass having a uniform fictive temperature. The glass article is heated at a target fictive temperature, or heated or cooled at a rate that is less than the rate of change of the fictive temperature, for a time that is sufficient to allow the fictive temperature of the glass to come within 3° C. of the target fictive temperature. The silica glass is then cooled from the target fictive temperature to a temperature below the strain point of the glass at a cooling rate that is greater than the relaxation rate of the glass at the target fictive temperature. The silica glass has a fictive temperature that varies by less than 3° C. after the annealing step. A silica glass made by the method is also described. | 04-21-2011 |
20120021150 | OPTICAL WINDOW ASSEMBLY HAVING LOW BIREFRINGENCE - An optical window assembly having a geometry that minimizes net induced birefringence. The optical window assembly comprises a transparent window affixed to a frame at an interface. The window assembly has a geometry such that retardance and stress-induced birefringence in the window are reduced or equal to zero. An opto-electronic device that includes the optical window assembly is also described. | 01-26-2012 |
20130322214 | ULTRASOUND-BASED LOCALIZATION OF CLIENT DEVICES IN DISTRIBUTED COMMUNICATION SYSTEMS, AND RELATED DEVICES, SYSTEMS, AND METHODS - A plurality of spatially located ultrasound beacons are provided in known locations within a distributed communications system. Each of the ultrasound beacons is configured to emit ultrasound pulses that can be received by client devices in ultrasound communication range of the ultrasound beacons. The client devices are configured to analyze the received ultrasound pulses from the beacons to determine their time-difference of arrival and as a result, their location in the distributed communications systems. Use of ultrasound pulses can provide greater resolution in location determination of client devices since ultrasound waves experience strong attenuation in building walls, ceilings, and floors, thus avoiding detection of ultrasound waves from other ultrasound beacons not located in proximity to the client devices. | 12-05-2013 |
20140373571 | FUSED SILICA GLASS ARTICLE HAVING IMPROVED RESISTANCE TO LASER DAMAGE - A fused silica glass article having greater resistance to damage induced by exposure to laser radiation such as laser induced wavefront distortion at deep ultraviolet (DUV) wavelengths, and behaviors such as fluence dependent transmission, which are related to intrinsic defects in the glass. The improved resistance to laser damage may be achieved in some embodiments by loading the glass article with molecular hydrogen (H | 12-25-2014 |
Patent application number | Description | Published |
20080203118 | Pressure Reducing And Regulating Valve Comprising A Tapping Mechanism For A Pressure Cartridge That Can Be Attached Underneath A Receptacle Cover - The invention relates to a valve unit ( | 08-28-2008 |
20120193451 | DISPOSABLE CONTAINER FOR COLORED FLUID AND METHOD FOR PRODUCING SUCH A DISPOSAL CONTAINER - The invention relates to a disposable container for receiving and dispensing a coloured fluid by spraying, comprising a vessel which forms a storage volume for the coloured fluid and comprises a vessel base and a vessel wall, the vessel being closed by a cap, a pressure regulating unit which can be connected to a propellant reservoir being arranged on the cap, using which pressure regulating unit a propellant can be introduced into the storage volume in order to set therein a regulated overpressure relative to the environment, and a hose being arranged on the cap, via which hose a spray gun is connected to the storage volume. | 08-02-2012 |
20120205403 | DISPOSABLE CONTAINER WITH FITTING ATTACHMENT - The invention relates to a single use container for pressurised liquid, in particular beer, comprising a receptacle providing a storage volume for the liquid, a top attachment unit which is arranged on top of the receptacle, and a fitting which is arranged sealingly in a filling hole that is formed in the receptacle for the feeding and tapping of liquid. | 08-16-2012 |
20120228311 | DISPOSABLE CASK WITH DISPOSABLE TAP - The invention relates to a single use cask for pressurised liquid, particularly beverages, with a cask bottom, a cask side wall and a cask lid, wherein a stand is formed on the cask bottom, and the cask side wall has an opening in which a single use tap is arranged, wherein the single use cask, by virtue of its height within a range of between 100 mm and 200 mm, preferably of between 125 mm and 175 mm, and particularly preferably of 160 mm, can be positioned upright in a conventional domestic fridge. | 09-13-2012 |