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:
Apr. 20, 2010
Filed:
Mar. 31, 2005
Applicant:
Renaud Moliton, Charenton-le-Pont, FR;
Inventor:
Renaud Moliton, Charenton-le-Pont, FR;
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a light pipe for use in particular in an electronic display arrangement, and designed to transmit light signals from one of its ends referred to as an entry surface to its other end referred to as an exit surface going towards the eye of a user for viewing a virtual image, the pipe including a diffractive component on one surface, referred to as its improved surface, said diffractive component being an element satisfying the equation of an aspherical body of revolution. According to the invention, said diffractive component is formed directly on said entry surface.