Patents by Inventor Jean A. Cacheux

Jean A. Cacheux 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).

  • Double heterojunction solar cells
    Patent number: 4191593
    Abstract: Photovoltaic cell comprising two heterojunctions between three component semiconductors Ga.sub.1-x AL.sub.x As with x varying from 0 to 0.9, GaAs, and Ge which have respective bandgaps of 0.66, 1.43 and 2.4 eV, lattice constants matching at 0.07% and expansion coefficients matching at 1.7%. The cell is mounted in a cell device comprising a parallelepipedal unit, a Fresnel lens, a tapering cavity within said unit, partially filled up with a lens shaped antireflecting transparent material and a radiator, said device forming a sunlight concentrator.
    Type: Grant
    Filed: September 26, 1978
    Date of Patent: March 4, 1980
    Assignee: Centre National d'Etudes Spatiales
    Inventor: Jean A. Cacheux