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:
Mar. 14, 2023
Filed:
Aug. 03, 2018
Applicants:
Université DE Rennes 1, Rennes, FR;
Albert Le Floch, Rennes, FR;
Inventors:
Albert Le Floch, Rennes, FR;
Guy Ropars, Rennes, FR;
Assignees:
Other;
UNIVERSITÉ DE RENNES 1, Rennes, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/02 (2006.01); G02C 7/10 (2006.01); G02C 7/12 (2006.01);
U.S. Cl.
CPC ...
G02B 27/021 (2013.01); G02C 7/101 (2013.01); G02C 7/12 (2013.01);
Abstract
The invention relates to an optical device (FILT) for filtering light received, by polarisation or mechanically, from a medium presenting a graphic and/or textual content, characterized in that cycles of opening and closing a vision space, in a visible light spectrum, are realized periodically using the optical device (FILT) at a preset frequency Fd and in that the successive open periods each have a duration (T1) comprised in an interval of values ranging from 15 to 35% of the duration (T) of the realized cycles.