Patents by Inventor Roger Clarke

Roger Clarke 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).

  • Publication number: 20140132916
    Abstract: Aspects of the present invention provide multifocal lenses having one or more multifocal inserts comprising one or more diffractive regions. A diffractive region of a multifocal insert of the present invention can provide a constant optical power or can provide a progression of optical power, or any combination thereof. A multifocal insert of the present invention can be fabricated from any type of material and can be inserted into any type of bulk lens material. A diffractive region of a multifocal insert of the present invention can be positioned to be in optical communication with one or more optical regions of a host lens to provide a combined desired optical power in one or more vision zones. Index matching layers of the preset invention can be used to reduce reflection losses at interfaces of the host lens and multifocal insert.
    Type: Application
    Filed: January 16, 2014
    Publication date: May 15, 2014
    Applicant: PixelOptics, Inc. (Estate of)
    Inventors: Venkatramani S. Iyer, William Kokonaski, Joshua N. Haddock, Roger Clarke, Ronald D. Blum
  • Patent number: 8662665
    Abstract: Aspects of the present invention provide multifocal lenses having one or more multifocal inserts comprising one or more diffractive regions. A diffractive region of a multifocal insert of the present invention can provide a constant optical power or can provide a progression of optical power, or any combination thereof. A multifocal insert of the present invention can be fabricated from any type of material and can be inserted into any type of bulk lens material. A diffractive region of a multifocal insert of the present invention can be positioned to be in optical communication with one or more optical regions of a host lens to provide a combined desired optical power in one or more vision zones. Index matching layers of the present invention can be used to reduce reflection losses at interfaces of the host lens and multifocal insert.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: March 4, 2014
    Assignee: PixelOptics, Inc.
    Inventors: Venkatramani S. Iyer, William Kokonaski, Joshua N. Haddock, Roger Clarke, Ronald D. Blum
  • Publication number: 20140043672
    Abstract: A fail-safe electro-active lens is presented in which the lens includes a substrate having a diffractive relief surface and an electro-active material in optical communication with the substrate. The electro-active material can include a nematic liquid crystal host. The refractive index of the substrate is equal to the average refractive index of the liquid crystal at a wavelength in the blue light spectrum.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 13, 2014
    Applicant: PixelOptics, Inc.
    Inventors: Roger Clarke, Joshua N. Haddock
  • Publication number: 20140009700
    Abstract: Aspects of the present invention provide an electro-active lens and method for manufacturing the same that encapsulates liquid crystal using solid transparent optical material using an improved liquid crystal seal feature. The seal feature greatly reduces the visibility of the liquid crystal seal feature in an assembled electro-active lens. The seal feature is also structurally robust such that the electro-active lens can be processed to fit a spectacle frame without disturbing containment of the liquid crystal and without disrupting electrical connectivity to the lens used to alter the refractive index of the liquid crystal, thereby ensuring fabrication of a commercially viable electro-active lens.
    Type: Application
    Filed: August 5, 2013
    Publication date: January 9, 2014
    Applicant: PixelOptics, Inc.
    Inventors: Joshua N. Haddock, William Kokonaski, Roger Clarke, Philip Rawlins, Peter Crossley, James John
  • Publication number: 20130312748
    Abstract: An inhaler comprising a housing defining a chamber to receive a strip having a plurality of blisters each containing a dose of medicament for inhalation by a user is disclosed. It comprises an actuating lever and a blister strip drive member rotatably mounted in the chamber to sequentially move each blister into a blister opening position. The blister strip drive member and the actuating lever comprise a drive gear and a drive gear element, respectively, that cooperate to effect rotation of the blister strip drive member in response to rotation of the actuating lever. The drive gear and drive gear element are disposed on the outside of the housing remote from the chamber.
    Type: Application
    Filed: November 25, 2011
    Publication date: November 28, 2013
    Applicant: VECTURA DELIVERY DEVICES LIMITED
    Inventors: Andreas Meliniotis, Stephen Eason, Roger Clarke, Liam McGuinness
  • Patent number: 8522776
    Abstract: An inhalation device comprising a base having a slot for insertion of a single blister containing a dose of medicament to be inhaled into the base is disclosed. The inhaler has a mouthpiece pivotally mounted to the base which carries a blister piercing element operable to pierce a blister received in said slot when the mouthpiece is pivoted relative to the base. When a user inhales on the mouthpiece, the dose is entrained in an airflow and flows out of the blister through the mouthpiece and into the user's airway.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: September 3, 2013
    Assignee: Vectura Delivery Devices Limited
    Inventors: Matthew Paul Wright, Mike Sheldon, Matthew Sarkar, Ivan Milivojevic, Roger Clarke, Emma Lesley Williamson
  • Patent number: 8523354
    Abstract: Aspects of the present invention provide an electro-active lens and method for manufacturing the same that encapsulates liquid crystal using solid transparent optical material using an improved liquid crystal seal feature. The seal feature greatly reduces the visibility of the liquid crystal seal feature in an assembled electro-active lens. The seal feature is also structurally robust such that the electro-active lens can be processed to fit a spectacle frame without disturbing containment of the liquid crystal and without disrupting electrical connectivity to the lens used to alter the refractive index of the liquid crystal, thereby ensuring fabrication of a commercially viable electro-active lens.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: September 3, 2013
    Assignee: PixelOptics Inc.
    Inventors: Joshua N. Haddock, William Kokonaski, Roger Clarke, Philip Rawlins, Peter Crossley, James John
  • Publication number: 20130201543
    Abstract: A light modulation device comprising an optical element and at least one addressable mask disposed adjacent to the optical element. The optical element comprises at least two sub-elements, each of the at least two sub-elements having at least one optical characteristic wherein at least one optical characteristic of one sub-element is discrete from at least one optical characteristic of another sub-element. The mask comprises at least two regions corresponding to the at least two sub-elements, each of the at least two regions being individually addressable to enable its corresponding sub-element to be light transmitting.
    Type: Application
    Filed: April 8, 2011
    Publication date: August 8, 2013
    Applicant: THE TECHNOLOGY PARTNERSHIP PLC
    Inventor: Roger Clarke
  • Patent number: 8464771
    Abstract: A multi-layer laminate media is provided on which information may be applied in machine or human readable form on a visible front surface by the output of one or more lasers, or other high intensity light source. In a preferred embodiment, the media has three layers including preferably transparent substrate, a thermochromic layer and a light absorbent layer located intermediate the media substrate and the thermochromic layer. The light absorbent layer is adapted to absorb light from the light source and convert the absorbed light into heat. The heat is immediately conducted into selected portions of the thermochromic layer which is in thermal contact with the light absorbent layer, causing portions of the thermochromic layer to change visual appearance such as color to create the desired mark. The media optimally includes obscuration materials to reduce the visibility of the light absorbent layer to the naked eye.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: June 18, 2013
    Assignee: Sinclair Systems International LLC
    Inventors: M. Scott Howarth, Colin P. Woodward, Neil Griffin, Sam Hyde, Roger Clarke, Richard Calusdian, Wilson B. Murray, Richard Hirst, Richard Evans, Enrique B. Schilling, Gareth Melton, Timothy Moore, David Southwood
  • Publication number: 20130107366
    Abstract: An optical device comprising an optical grating structure embedded between media of substantially the same optical refractive index, the structure having an optical coating at the interface between the two media, wherein the structure comprises grating facets inclined relative to the interface plane such that, in use, anomalous optical effects due to coating are substantially reduced.
    Type: Application
    Filed: April 8, 2011
    Publication date: May 2, 2013
    Applicant: THE TECHNOLOGY PARTNERSHIP PLC
    Inventor: Roger Clarke
  • Publication number: 20130003014
    Abstract: Aspects of the present invention provide multifocal lenses having one or more multifocal inserts comprising one or more diffractive regions. A diffractive region of a multifocal insert of the present invention can provide a constant optical power or can provide a progression of optical power, or any combination thereof. A multifocal insert of the present invention can be fabricated from any type of material and can be inserted into any type of bulk lens material. A diffractive region of a multifocal insert of the present invention can be positioned to be in optical communication with one or more optical regions of a host lens to provide a combined desired optical power in one or more vision zones. Index matching layers of the present invention can be used to reduce reflection losses at interfaces of the host lens and multifocal insert.
    Type: Application
    Filed: June 4, 2012
    Publication date: January 3, 2013
    Applicant: PixelOptics, Inc.
    Inventors: Venkatramani S. Iyer, William Kokonaski, Joshua N. Haddock, Roger Clarke, Ronald D. Blum
  • Patent number: 8319937
    Abstract: An alignment layer may align molecules of a liquid crystalline material to a surface of a substrate having a diffractive optical power region using a nonlinear alignment. The alignment layer may align the molecules of the liquid crystalline material in one of a tangential alignment, a piecewise tangential alignment, a perpendicular alignment, a piecewise perpendicular alignment, a continuous intra-zone alignment, or a piecewise continuous intra-zone alignment. The nonlinear alignment may result in optimal or near optimal alignment of the liquid crystalline material thereby resulting in improved optics and fewer vision compromises.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: November 27, 2012
    Assignee: PixelOptics, Inc.
    Inventors: Roger Clarke, Joshua N. Haddock, William Kokonaski
  • Patent number: 8317321
    Abstract: A lens system is presented having a diffractive optical power region. The diffractive optical power region has a plurality of concentric surface relief diffractive structures. A greater portion of light incident on a diffractive structure near the center point contributes to the optical power than light incident on a diffractive structure peripherally spaced therefrom.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: November 27, 2012
    Assignee: PixelOptics, Inc.
    Inventors: Joshua N. Haddock, William Kokonaski, Roger Clarke, Mark Mattison-Shupnick, Ronald D. Blum
  • Patent number: 8197063
    Abstract: Aspects of the present invention provide multifocal lenses having one or more multifocal inserts comprising one or more diffractive regions. A diffractive region of a multifocal insert of the present invention can provide a constant optical power or can provide a progression of optical power, or any combination thereof. A multifocal insert of the present invention can be fabricated from any type of material and can be inserted into any type of bulk lens material. A diffractive region of a multifocal insert of the present invention can be positioned to be in optical communication with one or more optical regions of a host lens to provide a combined desired optical power in one or more vision zones. Index matching layers of the present invention can be used to reduce reflection losses at interfaces of the host lens and multifocal insert.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: June 12, 2012
    Assignee: PixelOptics, Inc.
    Inventors: Venkatramani S. Iyer, William Kokonaski, Joshua N. Haddock, Roger Clarke, Ronald D. Blum
  • Publication number: 20110176103
    Abstract: Aspects of the present invention provide multifocal lenses having one or more multifocal inserts comprising one or more diffractive regions. A diffractive region of a multifocal insert of the present invention can provide a constant optical power or can provide a progression of optical power, or any combination thereof. A multifocal insert of the present invention can be fabricated from any type of material and can be inserted into any type of bulk lens material. A diffractive region of a multifocal insert of the present invention can be positioned to be in optical communication with one or more optical regions of a host lens to provide a combined desired optical power in one or more vision zones. Index matching layers of the present invention can be used to reduce reflection losses at interfaces of the host lens and multifocal insert.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 21, 2011
    Applicant: PixelOptics, Inc.
    Inventors: Venkatramani S. Iyer, William Kokonaski, Joshua N. Haddock, Roger Clarke, Ronald D. Blum
  • Publication number: 20110146912
    Abstract: A multi-layer laminate media is provided on which information may be applied in machine or human readable form on a visible front surface by the output of one or more lasers, or other high intensity light source. In a preferred embodiment, the media has three layers including preferably transparent substrate, a thermochromic layer and a light absorbent layer located intermediate the media substrate and the thermochromic layer. The light absorbent layer is adapted to absorb light from the light source and convert the absorbed light into heat. The heat is immediately conducted into selected portions of the thermochromic layer which is in thermal contact with the light absorbent layer, causing portions of the thermochromic layer to change visual appearance such as color to create the desired mark. The media optimally includes obscuration materials to reduce the visibility of the light absorbent layer to the naked eye.
    Type: Application
    Filed: November 12, 2010
    Publication date: June 23, 2011
    Inventors: M. Scott Howarth, Colin P. Woodward, Neil Griffin, Sam Hyde, Roger Clarke, Richard Calusdian, Wilson B. Murray, Richard Hirst, Richard Evans, Enrique B. Schilling, Gareth Melton, Timothy Moore, David Southwood
  • Patent number: 7883207
    Abstract: Aspects of the present invention provide multifocal lenses having one or more multifocal inserts comprising one or more diffractive regions. A diffractive region of a multifocal insert of the present invention can provide a constant optical power or can provide a progression of optical power, or any combination thereof. A multifocal insert of the present invention can be fabricated from any type of material and can be inserted into any type of bulk lens material. A diffractive region of a multifocal insert of the present invention can be positioned to be in optical communication with one or more optical regions of a host lens to provide a combined desired optical power in one or more vision zones. Index matching layers of the present invention can be used to reduce reflection losses at interfaces of the host lens and multifocal insert.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: February 8, 2011
    Assignee: PixelOptics, Inc.
    Inventors: Venkatramani S. Iyer, William Kokonaski, Joshua N. Haddock, Roger Clarke, Ronald D. Blum
  • Patent number: 7837823
    Abstract: A multi-layer laminate media is provided on which information may be applied in machine or human readable form on a visible front surface by the output of one or more lasers, or other high intensity light source. In a preferred embodiment, the media has three layers including a substrate, a thermochromic layer and a light absorbent layer such as carbon black located intermediate the media substrate and the thermochromic layer. The light absorbent layer is adapted to absorb light from the light source and convert the absorbed light into heat. The heat is immediately conducted into selected portions of the thermochromic layer which is in thermal contact with the light absorbent layer, causing portions of the thermochromic layer to change visual appearance such as color to create the desired mark. The invention includes a method and apparatus for using the media in conjunction with labeling produce items.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: November 23, 2010
    Assignee: Sinclair Systems International, LLC
    Inventors: Neil Griffin, Sam Hyde, Aylwyn Scally, Roger Clarke, M. Scott Howarth, Richard Calusdian, Wilson B. Murray, Richard Hirst, Richard Evans
  • Publication number: 20100192949
    Abstract: An inhalation device comprising a base having a slot for insertion of a single blister containing a dose of medicament to be inhaled into the base is disclosed. The inhaler has a mouthpiece pivotally mounted to the base which carries a blister piercing element operable to pierce a blister received in said slot when the mouthpiece is pivoted relative to the base. When a user inhales on the mouthpiece, the dose is entrained in an airflow and flows out of the blister through the mouthpiece and into the user's airway.
    Type: Application
    Filed: June 12, 2009
    Publication date: August 5, 2010
    Applicant: Vectura Delivery Devices Limited
    Inventors: Matthew Paul Wright, Mike Sheldon, Matthew Sarkar, Ivan Milivojevic, Roger Clarke, Emma Lesley Williamson
  • Patent number: 7728949
    Abstract: Embodiments of the present invention relate to a cholesteric liquid crystalline material which may be usable in an electro-active element for providing fail safe operation, polarization insensitivity, low electrical power consumption requirements, and a small number of electrical connections. The cholesteric liquid crystalline material may be usable in an electro-active element for providing a diffractive efficiency or focusing efficiency above 90% in an activated state of the electro-active element and a diffractive efficiency or focusing efficiency below 10% in a deactivated state of the electro-active element.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: June 1, 2010
    Assignee: PixelOptics, Inc.
    Inventors: Roger Clarke, Allan Carmichael, Joshua N. Haddock, William Kokonaski