Patents by Inventor Omar M. Buazza
Omar M. Buazza has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6494702Abstract: Apparatus for making a plastic lens. Apparatus includes a mold cavity and a cooling fluid distributor. The apparatus is adapted to produce a plastic lens from a liquid composition.Type: GrantFiled: May 12, 1995Date of Patent: December 17, 2002Assignee: Q2100, Inc.Inventors: Omar M. Buazza, N. Thornton Lipscomb, Stephen C. Luetke, John J. Robinson
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Patent number: 6464484Abstract: A lens forming apparatus for preparing a plastic eyeglass lens includes a first lens curing unit, a second lens curing unit and a conveyor system for moving mold assemblies between the two units. The apparatus may also include an anneal unit configured to apply heat to a substantially polymerized lens. The apparatus may be used to form an eyeglass lens from a lens forming composition that may include an aromatic containing polyether polyethylenic functional monomer, a photoinitiator, and a coinitiator. The lens forming composition may be cured by the application of activating light or activating light and heat.Type: GrantFiled: March 30, 2002Date of Patent: October 15, 2002Assignee: Q2100, Inc.Inventors: Galen R. Powers, John T. Foreman, Omar M. Buazza, Stephen C. Luetke, Matthew C. Lattis, Larry H. Joel, John T. Triplett, Loren C. Lossman
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Patent number: 6451226Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. The lens forming unit may include an LCD filter disposed between activating light sources and a mold assembly. The mold assembly preferably includes two mold members held together by a gasket. The gasket preferably includes four protrusions spaced at 90 degree intervals about the gasket. A lens forming composition may include a first photochromic compound, a second photochromic compound and a light effector. The light effector may alter the color of a lens when exposed to photochromic activating light, when compared to a lens formed from a lens forming composition which does not include a light effector.Type: GrantFiled: September 25, 1998Date of Patent: September 17, 2002Assignee: Q2100, Inc.Inventor: Omar M. Buazza
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Patent number: 6419873Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. A lens forming composition may include an aromatic containing polyether polyethylenic functional monomer, a photoinitiator, and a coinitiator. The lens forming composition may be cured by the application of activating light or activating light and heat.Type: GrantFiled: March 19, 1999Date of Patent: July 16, 2002Assignee: Q2100, Inc.Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers, Matthew C. Lattis, Larry H. Joel
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Patent number: 6416307Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. The lens forming unit may include an LCD filter disposed between activating light sources and a mold assembly. The mold assembly preferably includes two mold members held together by a gasket. The gasket preferably includes four protrusions spaced at 90 degree intervals about the gasket. A lens forming composition may include a first photochromic compound, a second photochromic compound and a light effector. The light effector may alter the color of a lens when exposed to photochromic activating light, when compared to a lens formed from a lens forming composition which does not include a light effector.Type: GrantFiled: September 25, 1998Date of Patent: July 9, 2002Assignee: Q2100, Inc.Inventors: Omar M. Buazza, Stephen C. Luetke, Matthew C. Lattis, Larry H. Joel, Galen R. Powers
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Patent number: 6367928Abstract: An eyeglass lens forming composition containing light absorbing compounds which may undergo light initiated polymerization is provided. Typically, lens forming compositions that absorb light do not permit enough activating radiation to penetrate into the depths of the lens cavity to adequately initiate polymerization of the lens forming composition. An embodiment of the invention provides a system and method for curing such a lens forming composition to form a lens that does not transmit ultraviolet light. Activating light is used having a wavelength greater than the wavelengths of light which the light absorbing compounds absorb. The power of the formed lenses may be controlled by varying the lens forming conditions. Additionally, the lens forming process may be controlled using a microprocessor based control system.Type: GrantFiled: September 16, 1999Date of Patent: April 9, 2002Assignee: Q2100, Inc.Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers
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Patent number: 6368523Abstract: An eyeglass lens forming composition containing light absorbing compounds which may undergo light initiated polymerization is provided. Typically, lens forming compositions that absorb light do not permit enough activating radiation to penetrate into the depths of the lens cavity to adequately initiate polymerization of the lens forming composition. An embodiment of the invention provides a system and method for curing such a lens forming composition to form a lens that does not transmit ultraviolet light. Activating light is used having a wavelength greater than the wavelengths of light which the light absorbing compounds absorb. The power of the formed lenses may be controlled by varying the lens forming conditions. Additionally, the lens forming process may be controlled using a microprocessor based control system.Type: GrantFiled: September 14, 1999Date of Patent: April 9, 2002Assignee: Q2100, Inc.Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers
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Publication number: 20020018824Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit A lens forming composition may include an aromatic containing polyether polyethylenic functional monomer, a photoinitiator, and a coinitiator.Type: ApplicationFiled: February 9, 2001Publication date: February 14, 2002Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers, Matthew C. Lattis, Larry H. Joel
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Publication number: 20020006452Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. A lens forming composition may include an aromatic containing polyether polyethylenic functional monomer, a photoinitiator, and a coinitiator. The lens forming composition may be cured by the application of activating light or activating light and heat.Type: ApplicationFiled: February 9, 2001Publication date: January 17, 2002Applicant: Optical Dynamics Corp.Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers, Matthew C. Lattis, Larry H. Joel
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Patent number: 6331058Abstract: A method for making a plastic lens and a plastic lens made thereby. The method comprises disposing a liquid poly(meth)acrylyl monomer, or a monomer mixture, an aromatic bis(allyl carbonate)-functional monomer and a photosensitive initiator into a mold cavity and directing ultraviolet light to act on the lens forming material in the cavity to produce a lens therefrom.Type: GrantFiled: March 10, 2000Date of Patent: December 18, 2001Assignee: Ophthalmic Research Group International, Inc.Inventors: N. Thornton Lipscomb, Omar M. Buazza
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Patent number: 6328445Abstract: Method and apparatus for making and coating a plastic lens. Oxygen barrier containing photoinitiator is used to cure incompletely cured lens portions. Radiation pulses are used to control lens curing rate. Lens is postcured while in a mold cavity using a conductive heat source.Type: GrantFiled: July 26, 1999Date of Patent: December 11, 2001Assignee: Q2100, Inc.Inventor: Omar M. Buazza
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Publication number: 20010048002Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The appaus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. A lens forming compositon may include an aromatic containing polyether polyethylenic functional monomer, a photoinitiator, and a coinitiator. The lens forming composition may be cured by the application of activating light or activating light and heat.Type: ApplicationFiled: February 9, 2001Publication date: December 6, 2001Applicant: Optical Dynamics Corp.Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers, Matthew C. Lattis, Larry H. Joel
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Publication number: 20010047217Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. A lens forming composition may include an aromatic containing polyether polyethylenic functional monomer, a photoinitiator, and a coinitiator.Type: ApplicationFiled: February 9, 2001Publication date: November 29, 2001Applicant: Optical Dynamics Corp.Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers, Matthew C. Lattis, Larry H. Joel
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Publication number: 20010038890Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. A lens forming composition may include an aromatic conning polyether polyethylenic functional monomer, a photoinitiator, and a coinitiator. The lens forming composition may be cured by the application of activating light or activating light and heat.Type: ApplicationFiled: February 9, 2001Publication date: November 8, 2001Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers, Matthew C. Lattis, Larry H. Joel
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Patent number: 6280171Abstract: Method and apparatus for making and coating a plastic lens. Oxygen barrier containing photoinitiator is used to cure incompletely cured lens portions. Radiation pulses are used to control lens curing rate. Lens is postcured while in a mold cavity using a conductive heat source.Type: GrantFiled: July 26, 1999Date of Patent: August 28, 2001Assignee: Q2100, Inc.Inventor: Omar M. Buazza
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Patent number: 6241505Abstract: System for making a plastic lens is provided. More particularly, a system for applying alternating periods of ultraviolet light to a lens forming composition is described. The lens forming composition is cured while controlling the rate of heat generation and/or dissipation via manipulation of the duration of the ultraviolet light or the cooling in the curing chamber. The ultraviolet light is preferably directed toward the lens forming composition which is disposed in a mold cavity formed by two mold members. The ultraviolet light may be directed in pulses or continuously.Type: GrantFiled: November 17, 1998Date of Patent: June 5, 2001Assignee: Q2100, Inc.Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers
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Patent number: 6206673Abstract: System for making a plastic lens. Mold members are spaced apart to define a mold cavity. Ultraviolet light is directed against at least one of the mold members to cure a composition and form a substantially clear eyeglass lens in less than one hour.Type: GrantFiled: May 30, 1995Date of Patent: March 27, 2001Assignee: Ophthalmic Research Group International, Inc.Inventors: N. Thornton Lipscomb, Omar M. Buazza
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Patent number: 6200124Abstract: Apparatus for making a plastic lens is described. More particularly, an apparatus for applying alternating periods of ultraviolet light to a lens forming composition is described. The lens forming composition is cured while the rate of heat generation and/or dissipation is controlled via manipulation of the duration of the ultraviolet light or the cooling in the curing chamber. The ultraviolet light is preferably directed toward the lens forming composition which is disposed in a mold cavity formed by two mold members. The ultraviolet light may be directed in pulses or continuously.Type: GrantFiled: November 12, 1998Date of Patent: March 13, 2001Assignee: Q1200Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers
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Patent number: 6201037Abstract: A method for making a plastic lens and a plastic lens made thereby. The method comprises disposing a liquid monomer or a monomer mixture and a photosensitive initiator into a mold cavity and directing ultraviolet light to act on the lens forming material in the cavity to produce a lens therefrom.Type: GrantFiled: October 26, 1989Date of Patent: March 13, 2001Assignee: Ophthalmic Research Group International, Inc.Inventors: N. Thornton Lipscomb, Omar M. Buazza
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Patent number: 6174465Abstract: Method for making a plastic lens is provided. More particularly, a method for applying alternating periods of ultraviolet light to a lens forming composition is described. The lens forming composition is cured while controlling the rate of heat generation and/or dissipation via manipulation of the duration of the ultraviolet light or the cooling in the curing chamber. The ultraviolet light is preferably directed toward the lens forming composition which is disposed in a mold cavity formed by two mold members. The ultraviolet light may be directed in pulses or continuously.Type: GrantFiled: November 11, 1998Date of Patent: January 16, 2001Assignee: Q2100, Inc.Inventors: Omar M. Buazza, Stephen C. Luetke, Galen R. Powers