Patents Represented by Law Firm Kenney & Lange
  • Sharp edge for thick coatings
    Patent number: 4812653
    Abstract: A sharp edged aperture for use with radiation sensing apparatus to permit radiation to pass through a relatively thick layer of radiation absorbing material with a minimum of reflection off the edges of the opening by utilizing a thin layer of radiation blocking material overlaying the layer of radiation absorbing material.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: March 14, 1989
    Assignee: Honeywell Inc.
    Inventor: David M. Comey