Patents Examined by Bruce M. Arnold
  • Low cost wide field of view infrared sensor
    Patent number: 4322124
    Abstract: A wide field of view infrared sensor is disclosed. A field of view in excess of 180 degrees is achieved by the use of a single element, negative miniscus lens. There is provided a flat PbS detector element, and the lens has an anti-reflection coating of SiO.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: March 30, 1982
    Assignee: Honeywell Inc.
    Inventors: Howard R. Padgitt, Frank J. Ferrin