Patents by Inventor Howard L. Freedman

Howard L. Freedman 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: 4989968
    Abstract: The present invention relates to a camera system for detecting photorefractive errors in a patient's eyes and for detection of ocular misalignment, media opacities and other abnormalities of the eyes and the lids. The invention includes a strobe mounted adjacent to a lens shield to create a slit aperture and which flash is rotated 90 degrees for vertical and horizontal or oblique photographs of different meridians. The camera has either a plurality of a mirrors forming a foldable light path or a telescopic or telephoto lens and a shorter light path to provide magnification of the image for one to one imaging.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: February 5, 1991
    Inventor: Howard L. Freedman