Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.
Type:
Grant
Filed:
September 18, 2003
Date of Patent:
March 7, 2006
Assignee:
Bausch & Lomb Incorporated
Inventors:
Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.
Type:
Grant
Filed:
September 18, 2003
Date of Patent:
March 7, 2006
Assignee:
Bausch & Lomb Incorporated
Inventors:
Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.
Type:
Grant
Filed:
October 23, 2003
Date of Patent:
February 28, 2006
Assignee:
Bausch & Lomb Incorporated
Inventors:
Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.
Type:
Grant
Filed:
October 23, 2003
Date of Patent:
January 31, 2006
Assignee:
Bausch & Lomb Incorporated
Inventors:
Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.
Abstract: A process for producing polysiloxane prepolymers of improved homogeneity for use in the production of relatively high refractive index polymeric compositions is described herein. Polymeric compositions so produced are useful in the production of ophthalmic devices such as for example intraocular lenses and corneal inlays.
Type:
Grant
Filed:
December 13, 2002
Date of Patent:
October 18, 2005
Assignee:
Bausch & Lomb Incorporated
Inventors:
Yu-Chin Lai, Edmond T. Quinn, Xiaojun Michael Liu, Edmund P. Maziarz, III
Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.
Abstract: Yellow dye moiety-containing prepolymers with blue light absorbing priorities and methods for producing the same for use in the production of relatively high refractive index polymeric compositions are described herein. Polymeric compositions so produced are useful in the production of ophthalmic devices such as for example intraocular lenses and corneal inlays.
Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.
Type:
Grant
Filed:
October 23, 2003
Date of Patent:
June 14, 2005
Assignee:
Bausch & Lomb Incorporated
Inventors:
Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.
Type:
Grant
Filed:
September 18, 2003
Date of Patent:
April 19, 2005
Assignee:
Bausch & Lomb Incorporated
Inventors:
Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.
Abstract: Hafnium oxide HfO2 scintillator compositions are doped with titanium oxide and at least an oxide of a metal selected from the group consisting of Be, Mg, and Li. The scintillator compositions can include sintering aid material such as scandium and/or tin and a rare earth metal and/or boron for improved transparency. The scintillators are characterized by high light output, reduced afterglow, short decay time, and high X-ray stopping power. The scintillators can be used as detector elements in X-ray CT systems.
Abstract: An environmentally-stable organic electroluminescent (“EL”) fiber comprises at least one layer of an organic EL material formed on a fiber, cable, or wire; associated electrodes for providing a voltage to activate the organic EL material; and a barrier layer formed around the EL and electrode materials for reducing the permeation of oxygen, water vapor, and other reactive materials into the underlying layers. The barrier layer comprises either (1) alternating sublayers of a polymeric material and an inorganic material, or (2) alternating sets of adjacent sublayers of polymeric materials and adjacent sublayers of inorganic materials. Color of light emitted from the fiber may be modified by one or more layers containing inorganic and/or organic phosphor materials.
Abstract: A method and apparatus for preventing the formation of leachable mercury in mercury arc vapor discharge lamps is provided which comprises providing in the lamp structure an effective amount of a silver compound, gold compound, or combination thereof.
Type:
Grant
Filed:
May 3, 2001
Date of Patent:
February 8, 2005
Assignee:
General Electric Company
Inventors:
Deborah Ann Haitko, Stanlee Teresa Buddle, David Key Dietrich, Donald Franklin Foust
Abstract: A light source comprises an organic light-emitting device, which emits radiation having a first spectrum, and a phosphor layer, which absorbs a portion of the light emitted by the organic light-emitting layer and which emits light having a second spectrum. The organic light-emitting device comprises an organic light-emitting layer disposed between a pair of electrodes, and at least a charge-blocking layer disposed between the organic light-emitting layer and one of the electrodes. The phosphor layer typically absorbs less than all of the light emitted by the organic light-emitting layer and typically covers the entire organic light-emitting device. The light emitted by the organic light-emitting layer is mixed with the light emitted by the phosphor layer to produce light having a third spectrum.
Type:
Grant
Filed:
April 29, 2003
Date of Patent:
January 25, 2005
Assignee:
General Electric Company
Inventors:
Anil Raj Duggal, Anant Achyut Setlur, Joseph John Shiang, Alok Mani Srivastava, Holly Ann Comanzo
Abstract: The present invention provides phosphor blends that are excitable by electromagnetic radiation having wavelengths in the near Uv-to-blue range (from about 315 nm to about 480 nm) to emit a visible light in a range of wavelengths from about 490 nm to about 770 nm. A phosphor blend of the present invention comprises a mixture of at least two phosphors. The first phosphor of the mixture comprises Sr2P2O7:Eu2+,Mn2+; wherein at least one element selected from the group consisting of Ba, Zn, Ca, and Mg partially substitutes strontium. The second phosphor is at least one selected from the group consisting of Sr4Al14O25:Eu2+; (Ba, Sr, Ca)MgAl10O17:Eu2+; (Ba, Sr, Ca)MgAl10O17:Eu2+,Mn2+; (Sr, Ba, Ca, Mg)5(PO4)3Cl:Eu2+; and 3.5 MgO.0.5MgF2.GeO2:Mn4+.
Type:
Grant
Filed:
January 31, 2003
Date of Patent:
January 18, 2005
Assignee:
General Electric Company
Inventors:
Anant Achyut Setlur, Alok Mani Srivastava, Holly Ann Comanzo
Abstract: A light emitting device is provided. The light emitting device contains an array of organic light emitting diodes (OLEDs) emitting a plurality of colors, and a layer of scattering media above the light emitting surface of the OLED array. The emission color of the OLEDs may be tuned by applying different power to different sets of OLEDs. The scattering media mixes the colors from each set of OLEDs, such that the device light output has a white color having a desired color temperature.
Abstract: A method for repairing an article made of a fiber-reinforced ceramic matrix composite comprises attaching sections of a fiber-reinforced tape to the damaged area and then infiltrating the sections with the ceramic matrix or ceramic matrix precursor material. The material around the damaged area may be removed first to form a depression that is then filled with sections of the fiber-reinforced tape and further infiltrated with the ceramic matrix or ceramic matrix precursor material. The repaired article shows stress-strain curve similar to a defect-free article.
Type:
Grant
Filed:
April 19, 2002
Date of Patent:
November 23, 2004
Assignee:
General Electric Company
Inventors:
Anteneh Kebbede, Milivoj Konstantin Brun, Krishan Lal Luthra, Henry Charles McGuigan
Abstract: Acicular bodies of a metal compound are produced by slowly precipitating an organic salt of the metal from a solution of an ester of a dicarboxylic acid having 1-5 carbon atoms and firing the precipitate in an oxidizing atmosphere. These acicular bodies have a cross-sectional dimension less than about 20 &mgr;m and are useful for providing reinforcement of a larger ceramic body. Acicular bodies of rare-earth metal oxides also are useful in reinforcing x-ray scintillator bodies without diminishing their luminescent capacity.
Type:
Grant
Filed:
March 30, 2001
Date of Patent:
November 2, 2004
Assignee:
General Electric Company
Inventors:
James Scott Vartuli, Venkat Subramaniam Venkataramani
Abstract: A coated ferromagnetic particle comprises a ferromagnetic core and a coating. The coating comprises a residue resulting from a thermal treatment of a coating material comprising a polymer selected from the group consisting of polyorganosiloxanes, polyorganosilanes, and mixtures thereof. A composite magnetic article comprises a compacted and annealed article of a desired shape. The composite magnetic article comprises a plurality of coated ferromagnetic articles. Each coated ferromagnetic particle comprises a ferromagnetic core and a coating. The coating comprises a residue resulting from a thermal treatment of a coating material comprising a polymer selected from the group consisting of polyorganosiloxanes, polyorganosilanes, and mixtures thereof.