Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8143181 | Nonlinear optic glassy fiber, methods of making and applications of the same A process for producing an optical glass fiber from crystal-glass phase material. In one embodiment, the process includes the step of providing a molten crystal-glass phase material in a container, wherein the temperature of the molten crystal-glass phase material i... | 03/27/2012 |
| 7767604 | Ga—P—S glass compositions Ga—P—S glass compositions that may have application in infrared (IR) windows, waveguiding fibers, or as host glasses for luminescent dopants are described. ... | 08/03/2010 |
| 7670972 | Chalcogenide glass composition A chalcogenide glass composition composed of arsenic (As), selenium (Se), sulfur (S), and antimony (Sb) is presented. The composition includes arsenic in the range from 25% to 45% by weight relative to the total weight of the composition, selenium in the range from ... | 03/02/2010 |
| 7547652 | Vitreous compositions of the vitroceramic type, transparent to infrared The invention relates to vitreous compositions, in particular of the vitroceramic type, transparent to infrared, production and uses thereof. Said compositions comprise in mol. %: Ge 5-40, Ga | 06/16/2009 |
| 7418835 | Low loss chalcogenide glass and process for making same using arsenic monochalcogenide This invention pertains to a chalcogenide glass of low optical loss that can be on the order of 30 dB/km or lower, and to a process for preparing the chalcogenide glass. The process includes the steps of optionally preparing arsenic monochalcogenide precursor or the... | 09/02/2008 |
| 7371703 | Optical glass suffering little change in refractive index by radiation of light An optical glass wherein an amount of change in refractive index (Δn: difference in refractive index between a state before radiation and a state after radiation) caused by radiation of laser beam at wavelength of 351 nm having average output power of 0.43 W, pulse... | 05/13/2008 |
| 7362789 | Laser-diode-excited laser apparatus, fiber laser apparatus, and fiber laser amplifier in which laser medium doped with one of Ho, Sm, Eu, Dy, Er, and Tb is excited with GaN-based compound laser diode A solid-state laser crystal constituting a laser-diode-excited solid-state laser apparatus or an optical fiber constituting a fiber laser apparatus or fiber laser amplifier is doped with one of Ho3+, Sm3+, Eu3+, Dy3+, Er | 04/22/2008 |
| 7330634 | Chalcogenide glass for low viscosity extrusion and injection molding The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the sane; Z is Se, Te, or a mixture of Se+Te; and Y and Z are present in a... | 02/12/2008 |
| 7312168 | Glass beads and uses thereof In one aspect, the invention provides glass beads and optical devices comprising the glass beads. In other aspects, the invention provides methods of making said glass beads and rapid glass screening methods that use glass beads. Glass beads of the invention compris... | 12/25/2007 |
| 7242019 | Shunted phase change memory By using a resistive film as a shunt, the snapback exhibited when transitioning from the reset state or amorphous phase of a phase change material, may be reduced or avoided. The resistive film may be sufficiently resistive that it heats the phase change material an... | 07/10/2007 |
| 7233739 | Optical bit stream reader system An all optical fiber bit stream reader system for examining the data contents of an optical fiber involving the conversion of a temporal timing signal into a spatially located signal is provided. The invention generally comprises generating and detecting a signal in... | 06/19/2007 |
| 7199444 | Memory device, programmable resistance memory cell and memory array A method of metal doping a chalcogenide material includes forming a metal over a substrate. A chalcogenide material is formed on the metal. Irradiating is conducted through the chalcogenide material to the metal effective to break a chalcogenide bond of the chalcoge... | 04/03/2007 |
| 7190875 | Fiber waveguide formed from chalcogenide glass and polymer In general, in one aspect, the disclosure features a fiber waveguide having a waveguide axis, including a core extending along the waveguide axis and a confinement region extending along the waveguide axis surrounding the core. The confinement region includes a peri... | 03/13/2007 |
| 7171827 | System and method for automated casting of infrared glass optical components In accordance with the present invention, a system and method for the automated casting of infrared glass optical components is provided. The system includes a mold for casting infrared glass into lenses, a mold chamber operable to heat the mold to a temperature abo... | 02/06/2007 |
| 7159419 | System and method for vapor pressure controlled growth of infrared chalcogenide glasses A system and method for preparing chalcogenide glass are provided that allow for larger quantities of glass to be produced with lower production costs and less risks of environmental hazards. The system includes a reaction container operable to hold chalcogenide gla... | 01/09/2007 |
| 7159420 | System and method for forming infrared glass optical components A system and method for forming infrared glass optical components are provided. The system includes first and second mold halves having first and second respective faces. The first and second mold halves are configured to be removably coupled such that the first fac... | 01/09/2007 |
| 7157390 | Infrared chalcogenide glass An infrared-transmitting glass material consists essentially of 35.3% wt. arsenic and 64.3% wt. selenium and has an expansion coefficient of 27×10−6/° C. ... | 01/02/2007 |
| 7116888 | Chalcogenide glass for low viscosity extrusion and injection molding The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the same; Z is S, Se, Te, or a mixture of two or more of the same; and Y a... | 10/03/2006 |
| 7042915 | Fiber laser with cladding-to-core energy migration A method of transferring energy in an optical fiber (12) from the fiber's cladding element (16) of the fiber's core element (14) is disclosed. The core element (14) includes an active gain component and an energy migration component, and ... | 05/09/2006 |
| 7022555 | Methods of forming a semiconductor memory device A method of metal doping a chalcogenide material includes forming a metal over a substrate. A chalcogenide material is formed on the metal. Irradiating is conducted through the chalcogenide material to the metal effective to break a chalcogenide bond of the chalcoge... | 04/04/2006 |
| 7018604 | Compounds for novel proton conducting membranes and methods of making same The present invention provides new compounds for use in proton exchange membranes which are able to operate in a wide variety of temperature ranges, including in the intermediate temperature range of about 100° C. to 700° C., and new and improved methods of making... | 03/28/2006 |
| 7015494 | Assemblies displaying differential negative resistance The invention includes a device displaying differential negative resistance characterized by a current-versus-voltage profile having a peak-to-valley ratio of at least about 9. The invention also includes a semiconductor construction comprising a substrate, and a fi... | 03/21/2006 |
| 6984598 | Infrared chalcogenide glass An infrared-transmitting glass material consists essentially of 35.3% wt. arsenic and 64.3% wt. selenium and has an expansion coefficient of 27×10−6/° C. ... | 01/10/2006 |
| 6967249 | Photochromic 3H-naphtho[2,1-b]-pyran compounds and photochromic articles produced therewith Specific photochromic 3H-naphtho[2,1-b]-pyran compounds useful with various types of synthetic resin materials to form photochromic articles, especially ophthalmic lenses, and photochromic articles formed with such compounds. The compounds of the invention have espe... | 11/22/2005 |
| 6955940 | Method of forming chalcogenide comprising devices A method of forming a non-volatile resistance variable device includes forming a first conductive electrode material on a substrate. A metal doped chalcogenide comprising material is formed over the first conductive electrode material. Such comprises the metal and A... | 10/18/2005 |
| 6951805 | Method of forming integrated circuitry, method of forming memory circuitry, and method of forming random access memory circuitry A method of forming memory circuitry sequentially includes forming a plurality of metal interconnect lines over a semiconductive substrate. A plurality of memory cell storage devices comprising voltage or current controlled resistance setable semiconductive material... | 10/04/2005 |
| 6949402 | Method of forming a non-volatile resistance variable device A method of metal doping a chalcogenide material includes forming a metal over a substrate. A chalcogenide material is formed on the metal. Irradiating is conducted through the chalcogenide material to the metal effective to break a chalcogenide bond of the chalcoge... | 09/27/2005 |
| 6873593 | Three-Dimensional optical memory with fluorescent photosensitive vitreous material read and written to by laser A three-dimensional vertical memory with florescent photosensitive vitreous material is read and written to by a laser or respective lasers. The memory can be cerium and europium-doped fluorescent photosensitive glass, yttrium, europium and praseodymium-containing g... | 03/29/2005 |
| 6756333 | Devitrification-resistant chalcogenide glasses The invention resides in a molecular, inorganic glass and a method of making the glass, the glass being vitreous and resistant to devitrification, that is composed, in substantial part at least, of thermally-stable, zero-dimensional clusters or molecules, composed o... | 06/29/2004 |
| 6660672 | Alkali halide-doped sulfide glasses for optical amplifier and fabricating method thereof There is provided alkaloid halogen-doped sulfide glasses for an optical amplifier and a fabricating method thereof. An alkaloid halogen-doped sulfide glass is formed of silica doped with a Ge--Ga--S three-component system, Pr3+, and an alkaloid... | 12/09/2003 |
| 6649326 | Photolithographic method and UV transmitting fluoride crystals with minimized spatial dispersion The invention provides a UV below 200 nm lithography method. The invention includes providing a below 200 nm radiation source for producing | 11/18/2003 |
| 6645893 | Glass suitable for optical functional elements and process for producing same A glass includes (a) a matrix containing a compound of at least one nonmetallic element; and (b) a particle selectively formed in the matrix. This particle is made of the at least one nonmetallic element. A process for producing such glass includes (a) pr... | 11/11/2003 |
| 6634189 | Glass reaction via liquid encapsulation A method of making chalcogenide glass which utilizes liquid encapsulation to prevent the evaporation loss of low boiling point or high vapor pressure glass components while the glass melt is being processed.... | 10/21/2003 |
| 6503859 | Molecular, inorganic glasses The invention resides in a molecular, inorganic glass and a method of making the glass, the glass being vitreous and resistant to devitrification, that is composed, in substantial part at least, of thermally-stable, zero-dimensional clusters or molecules,... | 01/07/2003 |
| 6501590 | Display medium using emitting particles dispersed in a transparent host Two and three dimensional color image displays. The displays include a display medium having a substantially uniform dispersion of red, green and blue visible light emitting particles sized between approximately 0.5 to approximately 50 microns therethroug... | 12/31/2002 |
| 6499317 | Synthetic quartz glass and method for production thereof A synthetic quartz glass for optical use, to be used by irradiation with light within a range of from the ultraviolet region to the vacuum ultraviolet region, which contains fluorine, which has a ratio of the scattering peak intensity of 2250 cm-1 | 12/31/2002 |
| 6395657 | Fluoride crystalline optical lithography lens element blank The invention provides a high quality identifiable fluoride crystalline optical microlithography lens element blank for formation into an lens element of a microlithography system. The highly qualified fluoride crystalline characteristics of the fluoride ... | 05/28/2002 |
| 6352949 | Fluoro glass ceramic showing photostimulable properties A glass ceramic material for storing energy of X-rays and releasing said energy by photo-stimulation comprising a fluoride glass matrix containing micro-crystalline particles, said particles having an average particle size, d, so that d | 03/05/2002 |
| 6327074 | Display medium using emitting particles dispersed in a transparent host Two and three dimensional color image displays. The displays include a display medium having a substantially uniform dispersion of red, green and blue visible light emitting particles sized between approximately 0.5 to approximately 50 microns therethroug... | 12/04/2001 |
| 6277775 | GeAs sulphide glasses containing P A GeAs sulphide glass family of transparent glasses having transmission far into the infrared portion of the spectrum, containing a source of phosphorus ion as a co-dopant to effect dispersion of a rare earth metal ion dopant in the glass, an optical comp... | 08/21/2001 |
