Patents by Inventor Matthew David Spark

Matthew David Spark 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: 8118428
    Abstract: An ophthalmic camera (10) comprising a camera (12) having a lens (18) aligned with a second lens (16) and at least one illumination means (14). The illumination means (14) is capable of movement relative to the camera lens (18) so that the beam of light emitted by the illumination means (14) is able to be focused by the second lens (16) through the pupil onto the fundus. In another embodiment, the ophthalmic camera comprises a camera (52), an illumination means (54) and a beamsplitter (58). The camera (52) and the beamsplitter (58) from an alignment axis X and the illumination means (54) together with the beam splitter (58) form an illumination axis Y perpendicular to the alignment axis X.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: February 21, 2012
    Assignee: The Lions Eye Institute Ltd.
    Inventors: Kanagasingam Yogesan, Gabriel Suplewski, Matthew David Spark, Ian Jeffrey Constable
  • Patent number: 7499634
    Abstract: Provided is an ophthalmic camera comprising: a camera having a camera lens; at least one illumination means; and an ophthalmic lens. The centres of the ophthalmic lens and camera lens are aligned to form an alignment axis. The at least one illumination means is capable of linear movement along a radial axis of the camera lens and pivotal movement about the radial plane incorporating radial axis and alignment axis. In such a manner, the circle of light emitted by the at least one illumination means is constantly directed to the centre of the ophthalmic lens.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: March 3, 2009
    Assignee: The Lions Eye Institute Ltd.
    Inventors: Kanagasingam Yogesan, Gabriel Suplewski, Matthew David Spark, Ian Constable