Patents by Inventor Phillip D. Wasserman

Phillip D. Wasserman 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).

  • Autofocusing system for microscope having contrast detection means
    Patent number: 4945220
    Abstract: An autofocusing system for a microscope is disclosed. An autofocus target is placed between a colliminating lens and a relay lens of the microscope. The autofocus target contains a pattern of dark areas which are projected onto a specimen and reflected into a CCD camera array. The focus of the microscope is adjusted such that the variation in intensity of light through the pattern is maximized.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: July 31, 1990
    Assignee: Prometrix Corporation
    Inventors: Chester L. Mallory, Phillip D. Wasserman, Hung V. Pham, Barry G. Broome