Patents by Inventor Graham Carlow

Graham Carlow 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: 10473837
    Abstract: An optical interference coating with reduced back reflectance for 3D glasses based on colour separation has a substantial transmittance at one or more passbands over the visible spectral range in order to view the desired left (right) eye image and a substantial reflectance and absorption at one or more different blocking bands over the visible spectral range in order to block the undesired right (left) eye image while simultaneously reducing the back reflectance of visible light towards the viewer's eye. The thicknesses and materials are chosen such that the left eye reduced back reflectance 3D coated lens transmits the desired left eye image and blocks the right eye image while the right eye reduced back reflectance 3D coated lens transmits the desired right eye image and blocks the left eye image so that a 3D image can be viewed whilst substantially reducing distracting back reflections from the coated lenses.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: November 12, 2019
    Assignee: IRIDIAN SPECTRAL TECHNOLOGIES, LTD.
    Inventors: Brian Thomas Sullivan, Graham Carlow, Michelle Derouin, Peter Hook
  • Publication number: 20170068028
    Abstract: An optical interference coating with reduced back reflectance for 3D glasses based on colour separation has a substantial transmittance at one or more passbands over the visible spectral range in order to view the desired left (right) eye image and a substantial reflectance and absorption at one or more different blocking bands over the visible spectral range in order to block the undesired right (left) eye image while simultaneously reducing the back reflectance of visible light, whatever the source, towards the viewer's eye. The thickness of the absorbing layer material or materials are chosen such that the luminance back reflectance of the coatings is substantially reduced while minimizing the transmittance loss of the filter's desired passbands. The optical interference coating is typically deposited on the concave side of the lens for 3D glasses.
    Type: Application
    Filed: September 8, 2016
    Publication date: March 9, 2017
    Inventors: Brian Thomas Sullivan, Graham Carlow, Michelle Derouin, Peter Hook
  • Patent number: 9574741
    Abstract: A laser reflecting has a low transmittance at one or more laser wavelengths while substantially transmitting all other wavelengths in the spectral range of interest, is coated on one or both sides of an absorbing or non-absorbing substrate. A laser reflecting filter on both sides of an absorbing substrate can result in an enhancement of the absorption of laser light by multiple reflections of the laser light in the absorbing substrate. The high transmittance of the laser-reflecting filter at non-laser wavelengths results in a relatively high overall transmittance through the coated substrate. In the specific case of laser reflecting coatings on a lens to protect an eye, this allows a high luminous transmittance and good color discrimination.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 21, 2017
    Assignee: Iridian Spectral Technologies, Ltd.
    Inventors: Brian Thomas Sullivan, Graham Carlow, Norman Ronald Osborne, Adam Badeen, Jason Palidwar
  • Publication number: 20150092053
    Abstract: A laser reflecting has a low transmittance at one or more laser wavelengths while substantially transmitting all other wavelengths in the spectral range of interest, is coated on one or both sides of an absorbing or non-absorbing substrate. A laser reflecting filter on both sides of an absorbing substrate can result in an enhancement of the absorption of laser light by multiple reflections of the laser light in the absorbing substrate. The high transmittance of the laser-reflecting filter at non-laser wavelengths results in a relatively high overall transmittance through the coated substrate. In the specific case of laser reflecting coatings on a lens to protect an eye, this allows a high luminous transmittance and good colour discrimination.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: Brian Thomas Sullivan, Graham Carlow, Norman Ronald Osborne, Adam Badeen, Jason Palidwar
  • Publication number: 20030017346
    Abstract: The strength and durability of an adhesive joint between two glass components or a glass component and another element can be improved by preventing or retarding migration of ions present in glass to the glass-adhesive interface. This can be effected by coating the glass surface at the joint with a submicron layer of silicon dioxide (SiO2), aluminum oxide (Al2O3), a multi-layer coating containing silicon dioxide or another ion-migration retarding material.
    Type: Application
    Filed: July 17, 2002
    Publication date: January 23, 2003
    Inventors: William Thomas Moore, Mirza Cevro, Lucie Robitaille, Jing Li, James Arthur O'Neill, Janet Turner, Graham Carlow, Robert Bruce