Patents by Inventor Arnaud Crastes

Arnaud Crastes 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).

  • Imaging system comprising a Fresnel lens
    Patent number: 9316541
    Abstract: The imaging system for imaging field rays comprises a detection surface, a device for focusing the field rays with said detection surface, and a diaphragm. Said device comprises a Fresnel lens comprising a first dioptre, the non-plane surface of which, called the active zone, makes it possible to focus the field rays towards said detection surface, and said diaphragm allows controlled distribution of the field rays over said active zone.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: April 19, 2016
    Assignees: OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES (ONERA), ULIS
    Inventors: Guillaume Druart, Florence De La Barriere, Arnaud Crastes
  • IMAGING SYSTEM COMPRISING A FRESNEL LENS
    Publication number: 20140111651
    Abstract: The imaging system for imaging field rays comprises a detection surface, a device for focusing the field rays with said detection surface, and a diaphragm. Said device comprises a Fresnel lens comprising a first dioptre, the non-plane surface of which, called the active zone, makes it possible to focus the field rays towards said detection surface, and said diaphragm allows controlled distribution of the field rays over said active zone.
    Type: Application
    Filed: April 16, 2012
    Publication date: April 24, 2014
    Applicants: ULIS, OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES (ONERA)
    Inventors: Guillaume Druart, Florence De La Barriere, Arnaud Crastes
  • Method and device for controlling the resistance of the sensitive member of a bolometric sensor
    Patent number: 8431901
    Abstract: The invention relates to a method for controlling the resistance of a bolometer in a bolometer matrix of a sensor, said sensor comprising a circuit for reading said matrix which is capable of addressing said bolometer. According to the invention, the method comprises a step (46) of adjusting the recurrence of addressing the bolometer using the read circuit.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: April 30, 2013
    Assignee: ULIS
    Inventor: Arnaud Crastes
  • METHOD AND DEVICE FOR CONTROLLING THE RESISTANCE OF THE SENSITIVE MEMBER OF A BOLOMETRIC SENSOR
    Publication number: 20110186737
    Abstract: The invention relates to a method for controlling the resistance of a bolometer in a bolometer matrix of a sensor, said sensor comprising a circuit for reading said matrix which is capable of addressing said bolometer. According to the invention, the method comprises a step (46) of adjusting the recurrence of addressing the bolometer using the read circuit.
    Type: Application
    Filed: September 18, 2009
    Publication date: August 4, 2011
    Applicant: ULIS
    Inventor: Arnaud Crastes