Patents by Inventor Glenn P. Empey

Glenn P. Empey 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).

  • Singular fiber to bundle illumination with optical coupler
    Patent number: 5680492
    Abstract: A gradient index (GRIN) lens couples light from a single fiber optic into a fiber bundle or directly into the input port of an illumination device, such as a medical illumination device. The single fiber optic provides a high intensity beam of light having a high NA. An entry face of the GRIN lens is positioned adjacent to an exit aperture of the fiber within the near field of the fiber and thereby receives a beam having a substantially uniform cross-section, rather than a Gaussian cross-section as would occur with the GRIN lens positioned in the far field of the fiber. An exit face of the GRIN lens is positioned adjacent to the fiber bundle or input port of the illumination device. As such, the GRIN lens effectively images the exit aperture of the fiber of the input aperture of the fiber bundle as input port.
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: October 21, 1997
    Assignee: Cogent Light Technologies, Inc.
    Inventors: Mark D. Hopler, Glenn P. Empey, Zafirios Gourgouliatos