Patents by Inventor Venkatramani Iyer

Venkatramani Iyer 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).

  • Patent number: 9081208
    Abstract: An electro-active optical cell is described including a layer of electro-active material, a front glass substrate member, and a back glass substrate member. The optical cell is capable of independently providing changeable optical power with the application of an electrical potential. The cell is also configured to be affixed to an external surface of a plastic substrate and to provide the changeable optical power, with at least one of the front substrate or the back substrate of the optical cell being an outermost optical layer. The layer of electro-active material may have a thickness less than 10 ?m, and the glass substrate members may each have a thickness approximately between 20 ?m and 500 ?m.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: July 14, 2015
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Ronald Blum, Amitava Gupta, William Kokonaski, Venkatramani Iyer
  • Patent number: 8827446
    Abstract: Embodiments described herein may provide an electro-active lens. The electro-active lens may comprise a first substrate, a second substrate, and an electro-active element disposed between the first substrate and the second substrate. The electro-active element may be configured to alter the optical power of at least a portion of the electro-active lens. The first substrate may comprise a different material than the second substrate.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: September 9, 2014
    Assignee: HPO Assets LLC
    Inventors: Venkatramani Iyer, Robert S. Hall, Randall Blevins, Ronald Blum, William Kokonaski
  • Publication number: 20130027655
    Abstract: An electro-active optical cell is described including a layer of electro-active material, a front glass substrate member, and a back glass substrate member. The optical cell is capable of independently providing changeable optical power with the application of an electrical potential. The cell is also configured to be affixed to an external surface of a plastic substrate and to provide the changeable optical power, with at least one of the front substrate or the back substrate of the optical cell being an outermost optical layer. The layer of electro-active material may have a thickness less than 10 ?m, and the glass substrate members may each have a thickness approximately between 20 ?m and 500 ?m.
    Type: Application
    Filed: June 4, 2012
    Publication date: January 31, 2013
    Applicant: PixelOptics, Inc.
    Inventors: Ronald Blum, Amitava Gupta, William Kokonaski, Venkatramani Iyer
  • Publication number: 20120229754
    Abstract: Embodiments described herein may provide an electro-active lens. The electro-active lens may comprise a first substrate, a second substrate, and an electro-active element disposed between the first substrate and the second substrate. The electro-active element may be configured to alter the optical power of at least a portion of the electro-active lens. The first substrate may comprise a different material than the second substrate.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 13, 2012
    Applicant: PixelOptics, Inc.
    Inventors: Venkatramani Iyer, Robert S. Hall, Randall Blevins, Ronald Blum, William Kokonaski
  • Publication number: 20120061863
    Abstract: An apparatus for molding at least one side of an ophthalmic diffractive lens. The apparatus includes a first mold, wherein the first mold includes at least a first portion made of plastic, and wherein the first portion includes a first pattern on a surface thereof, the first pattern configured to impart a diffractive optical pattern on a surface on the at lest one side of the ophthalmic diffractive lens molded using the first mold.
    Type: Application
    Filed: July 11, 2011
    Publication date: March 15, 2012
    Applicant: PIXELOPTICS, INC.
    Inventors: Bryan Cox, Youval Katzman, Yassin Turshani, Anita Trajkovska, Venkatramani Iyer, David Strickland
  • Publication number: 20080094566
    Abstract: A film suitable for use in an ophthalmic system is provided. The film may selectively inhibit blue light within the wavelength range of 400 nm to 460 nm to reduce phototoxic light to the eye while maintaining photopic vision, and may be color balanced to allow for the system into which the film is incorporated to be perceived as colorless to a viewer observing and/or using the system. The system may have a photopic and scotopic luminous transmission of 85% or more and a phototoxicity ratio of less than 80%. When used in an ophthalmic system or other system disposed between an observer's eye and a light source, the film may reduce the flux of blue light to the internal structures of the eye while reducing or minimizing dilation of the pupil.
    Type: Application
    Filed: August 23, 2007
    Publication date: April 24, 2008
    Inventors: Andrew Ishak, Joshua Haddock, William Kokonaski, Ronald Blum, Venkatramani Iyer, Mark Mattison-Shupnick
  • Publication number: 20080002150
    Abstract: An ophthalmic lens is presented in which the lens includes a progressive addition legion and a dynamic optic. The dynamic optic and the progressive addition region are in optical communication. The progressive addition region has an add power which is less than a user's neat viewing distance add power. The dynamic optic, when activated, provides the additional needed optical power for the wearer to see clearly at a near distance. This combination leads to the unexpected result that not only does the wearer have the ability to see clearly at intermediate and near distances, but the level of unwanted astigmatism, distortion, and vision compromise ale reduced significantly.
    Type: Application
    Filed: June 12, 2007
    Publication date: January 3, 2008
    Inventors: Ronald Blum, William Kokonaski, Venkatramani Iyer, Joshua Haddock
  • Publication number: 20070258039
    Abstract: A nose bridge for a fashion spectacle lens frame adapted for housing electro-active lenses is presented. The nose bridge may include a body which may further include electronic components. The nose bridge may further include a connecting element for connecting the electronic components with the electro-active lenses for altering optical properties of the electro-active lenses. The nose bridge may be adapted to fit a variety of frame sizes, shapes, and styles as well as lenses of a variety of sizes and shapes.
    Type: Application
    Filed: May 1, 2007
    Publication date: November 8, 2007
    Inventors: Dwight Duston, Ronald Blum, Joshua Haddock, William Kokonaski, Venkatramani Iyer
  • Publication number: 20070216861
    Abstract: Embodiments of the present invention relate to an ophthalmic system that performs effective blue blocking for an ophthalmic lens while at the same time providing a cosmetically attractive product, normal or acceptable color perception for a user, and a high level of transmitted light for good visual acuity.
    Type: Application
    Filed: March 20, 2006
    Publication date: September 20, 2007
    Inventors: Andrew Ishak, Joshua Haddock, William Kokonaski, Dwight Duston, Venkatramani Iyer, Ronald Blum
  • Publication number: 20070159562
    Abstract: An improved device and method for manufacturing electro-active spectacle lenses comprising electronic, electro-active optical, and bulk refractive optical elements is presented. In this method, electronic and electro-active optical elements are mounted to an optically transparent and mechanically flexible integration insert which is separate from any bulk refractive optical element(s). This method is advantageous for the manufacture of such spectacle lenses in that it allows for the mass production of many of the individual elements and enables the integration of the insert with the bulk refractive optical element(s) by multiple means. One such approach involves attaching the insert with a transparent adhesive to a rigid optical substrate and then encapsulating it by means of surface casting. Alternatively, the insert may be placed between the surfaces of a mold filled with an optical resin and encapsulated within the bulk refractive element as the resin is cured.
    Type: Application
    Filed: January 9, 2007
    Publication date: July 12, 2007
    Inventors: Joshua Haddock, William Kokonaski, Ronald Blum, Venkatramani Iyer, Dwight Duston
  • Publication number: 20070052920
    Abstract: The present invention generally relates to an electro-active optic incorporating a blend region between two regions each having different optical properties.
    Type: Application
    Filed: November 13, 2006
    Publication date: March 8, 2007
    Inventors: Wilber Stewart, Joseph McGinn, Joshua Haddock, William Kokonaski, Venkatramani Iyer, Ronald Blum
  • Patent number: 6267587
    Abstract: An apparatus and a method for curing coatings on ophthalmic lenses is disclosed. The apparatus includes an oven that is continuously supplied with lenses. A vertically oriented conveyor having multiple carrier bars for supporting the lenses is positioned within the oven. The conveyor moves the lenses through a series of positions within the oven where the lenses are subjected to heat. Ambient air is filtered and forced into the oven by an intake blower which keeps the air pressure within the oven above the ambient air pressure. Air is recirculated and filtered within the oven by recirculation blowers. Air is exhausted from the oven by an exhaust blower which effects air exchange with the ambient.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: July 31, 2001
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Joseph A. Bishop, Gary Marcau, Venkatramani Iyer, Brian McCrady