Patents by Inventor David Carden

David Carden 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).

  • Method and apparatus for measuring a property of an eye of a subject
    Patent number: 9526413
    Abstract: According to a first aspect of the present invention, there is provided a method of measuring a property of an eye of a subject using an apparatus which is: arranged to provide a bleaching light, a background light ostensibly invisible to rods (e.g. substantially red, and/or having or being a wavelength greater than 580 nm) and a target light ostensibly visible to rods (e.g. substantially green, and/or having or being a wavelength less than 580 nm and greater than 400 nm, e.g.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: December 27, 2016
    Assignee: Enodis Corporation
    Inventors: Ian Murray, David Carden
  • METHOD AND APPARATUS FOR MEASURING A PROPERTY OF AN EYE OF A SUBJECT
    Publication number: 20130286352
    Abstract: According to a first aspect of the present invention, there is provided a method of measuring a property of an eye of a subject using an apparatus which is: arranged to provide a bleaching light, a background light ostensibly invisible to rods (e.g. substantially red, and/or having or being a wavelength greater than 580 nm) and a target light ostensibly visible to rods (e.g. substantially green, and/or having or being a wavelength less than 580 nm and greater than 400 nm, e.g.
    Type: Application
    Filed: August 17, 2011
    Publication date: October 31, 2013
    Applicant: THE UNIVERSITY OF MANCHESTER
    Inventors: Ian Murray, David Carden
  • Ocular measurement apparatus and method
    Patent number: 7390090
    Abstract: According to an aspect of the present invention, there is provided a measurement apparatus for measuring a property of an eye of a subject, having a target arranged to be viewed by the subject, the target including a first light and a second light arranged to undergo a modulation in anti-phase, the modulation decreasing from an initial modulation frequency at which an initial flicker of the first light and second light is not perceivable by the subject; and an indication device allowing the subject to indicate when a flicker is perceived, the modulation frequency at which the subject indicates that the flicker is perceived being defined as a threshold modulation frequency.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: June 24, 2008
    Inventors: Ian Murray, David Carden
  • Ocular measurement apparatus and method
    Publication number: 20060227290
    Abstract: According to an aspect of the present invention, there is provided a measurement apparatus for measuring a property of an eye of a subject, having a target arranged to be viewed by the subject, the target including a first light and a second light arranged to undergo a modulation in anti-phase, the modulation decreasing from an initial modulation frequency at which an initial flicker of the first light and second light is not perceivable by the subject; and an indication device allowing the subject to indicate when a flicker is perceived, the modulation frequency at which the subject indicates that the flicker is perceived being defined as a threshold modulation frequency.
    Type: Application
    Filed: April 12, 2006
    Publication date: October 12, 2006
    Inventors: Ian Murray, David Carden