Patents by Inventor Didier Lepere

Didier Lepere 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).

  • Light diffraction optical method, with corresponding optical system and device
    Patent number: 7233444
    Abstract: An optical system comprises a Bragg reflector configured to diffract incident light having a wavelength between about 0.1 nm and about 0.7 nm. The optical system also comprises a diffraction grating comprising parallel lines engraved on a surface of the Bragg reflector. Specifically, the diffraction grating is configured to diffract incident light having a wavelength between about 0.6 nm and about 150 nm.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: June 19, 2007
    Assignee: Jobin Yvon S.A.S.
    Inventors: Didier Lepere, Erick Jourdain
  • Light diffraction optical method, with corresponding optical system and device
    Publication number: 20050190449
    Abstract: An optical system comprises a Bragg reflector configured to diffract incident light having a wavelength between about 0.1 nm and about 0.7 nm. The optical system also comprises a diffraction grating comprising parallel lines engraved on a surface of the Bragg reflector. Specifically, the diffraction grating is configured to diffract incident light having a wavelength between about 0.6 nm and about 150 nm.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 1, 2005
    Inventors: Didier Lepere, Erick Jourdain
  • Optical method for light diffraction, corresponding optical system and device
    Publication number: 20040027647
    Abstract: The invention concerns a light diffraction optical method covering a wide wavelengths range, a optical system and a optical measuring device corresponding.
    Type: Application
    Filed: September 11, 2003
    Publication date: February 12, 2004
    Inventors: Didier Lepere, Erick Jourdain
  • Wavelength-selective multiplexer-demultiplexer
    Patent number: 4622662
    Abstract: A multiplexer-demultiplexer for different wavelengths carried by optical fibers (10) the ends of which are disposed in the immediate vicinity of the focus of a concave mirror (18) associated with a plane diffraction grating (15) is disclosed.The multiplexer-demultiplexer consists of four elements that are adhesively attached to one another, namely, a fiber-carrying element (1); a grating-carrying element (15); an intermediary element (3) of the same index as the element (2); and a mirror element (4) having an index of refraction different from that of element (3) and selected to compensate for longitudinal spherical aberration of the mirror (18) for at least one of the wavelengths being utilized.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: November 11, 1986
    Assignee: Instruments S.A.
    Inventors: Jean-Pierre Laude, Jean Flamand, Gerard Pitois, Didier Lepere
  • Monochromator having a toroidal holographic diffraction grating and utilizable in the ultraviolet band
    Patent number: 4063818
    Abstract: A monochromator having a fixed inlet slot, a holographic grating carried on a concave turnable support, and a fixed outlet slot, the support surface of the holographic grating being a concave portion of a toroidal surface, taken at the outer periphery of the toroid, and symmetrically disposed with respect to the equatorial plane of the toroid, the equatorial plane also containing the point sources for recording the holographic grating.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: December 20, 1977
    Assignee: Instruments S.A.
    Inventor: Didier Lepere