Patents by Inventor Jacqueline Begel

Jacqueline Begel 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).

  • Dielectric layer polarizer
    Patent number: 4966438
    Abstract: The invention relates in particular to polarizing light whose angle of incidence may vary substantially, e.g. over .+-.10.degree.. A polarizing stack (22) constituted by dielectric layers (30, 31, 32, 33, 34, . . . ) is formed on an oblique face (4). It is in the form of a repetitive sucession of symmetrical sequences (30, 31, 40) each constituted by two half-thickness low refractive index layers (30, 40) on either side of a high refracture index layer (31). The invention is particularly applicable to polarizing the light emitted by a semiconductor laser.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: October 30, 1990
    Assignee: Societe Anonyme dite: Alcatel Cit
    Inventors: Jacques Mouchart, Jacqueline Begel, Eugene Duda