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:
May. 05, 2015
Filed:
Dec. 12, 2013
Commissariat a L'energie Atomique ET Aux Ene Alt, Paris, FR;
Umberto Rossini, Coublevie, FR;
Maxime Favier, Bures sur Yvette, FR;
Stephanie Le Calvez, Sassenage, FR;
Sophie Morales, Varces, FR;
Abstract
The invention relates to a polarization rotator with small polarization ellipticity. The rotator includes a first optical unit () and a second optical unit () on a common optical axis. The first optical unit () is formed by a rectilinear polarizer () and a first quarter-wave plate (), where the polarization direction of the polarizer is a bisector of the neutral axes of the quarter-wave plate. The second optical unit () is formed by a variable-delay plate () and a second quarter-wave plate (), where the neutral axes of the second quarter-wave plate are bisectors of the neutral variable-delay plate axes.