Patents by Inventor Jacques Galaup

Jacques Galaup 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).

  • Fixed optical attenuator for light rays guided by optical fibres
    Patent number: 4257671
    Abstract: The present invention relates to the optical fibre technology and more particularly to fixed optical attenuators for insertion in an optical fibre transmission path. The optical attenuator includes an attenuator element 1, two lenses 2, 3 which are aligned with each other and separated by the attenuator element 1 and two optical fibre connections disposed on either side of the assembly formed by the lenses 2, 3 and the attenuator element 1. It may be used as a level adaptor between a source of light rays and a device which is connected to it by an optical fibre or in test, calibration or measuring instruments for optical fibre systems.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: March 24, 1981
    Assignee: Compagnie Industrielle des Telecommunications Cit-Alcatel
    Inventors: Alain Barbaudy, Jacques Galaup