The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2016
Filed:
Dec. 04, 2013
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Antoine Dupret, Orsay, FR;
Sylvain Gigan, Paris, FR;
François Ramaz, Le Kremlin-Bicêtre, FR;
Gilles Tessier, Paris, FR;
Arnaud Verdant, Saint Nazaire les Eymes, FR;
Abstract
The invention concerns a system for measuring and controlling the wave-front of a coherent light beam (), comprising: a device for generating a reference light beam () that is coherent with said coherent light beam (); a partially reflective monolithic device () comprising an array of elementary cells, each elementary cell comprising at least one element () for measuring a portion of the incident wave interfering between the coherent light beam and the reference light beam and a phase modulation element () for modulating the phase of the reflected beam; and a control device () for controlling said phase modulation element making use of the information from the associated measuring element.