TREA

H. John Caulfield

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  • Nagog Woods, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hologram writing apparatus and method
    • Patent number 4,655,539
    • Issue date Apr 7, 1987
    • Aerodyne Products Corporation
    • H. John Caulfield
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Method for writing holograms
    • Patent number 4,510,575
    • Issue date Apr 9, 1985
    • Aerodyne Research, Inc.
    • Peter F. Mueller
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Hologram writer and method
    • Patent number 4,498,740
    • Issue date Feb 12, 1985
    • Aerodyne, Research, Inc.
    • H. John Caulfield
    • G02 - OPTICS
  • Information Patent Grant

    Spatial light modulator and process of modulation
    • Patent number 4,429,954
    • Issue date Feb 7, 1984
    • Aerodyne Research, Inc.
    • H. John Caulfield
    • G02 - OPTICS
  • Information Patent Grant

    Image enhancement
    • Patent number 4,416,538
    • Issue date Nov 22, 1983
    • Aerodyne Research, Inc.
    • Peter F. Mueller
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY