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:
Sep. 25, 2012
Filed:
Aug. 08, 2008
Robert Andre Marcel Stehle, Bonneval, FR;
Michael Bray, Wissous, FR;
Laurent Sarry, Romagnat, FR;
Eric Zeghers, Le Pertuis, FR;
Robert Andre Marcel Stehle, Bonneval, FR;
Michael Bray, Wissous, FR;
Laurent Sarry, Romagnat, FR;
Eric Zeghers, Le Pertuis, FR;
Abstract
A projection device () includes: a projector () adapted for projecting a mother image along a projection axis (); and a convex mirror adapted for at least partially reflecting the mother image and projecting it onto a three-dimensional environment () such as the ground, a ceiling, one or more side walls and the content of a room. When combining the projector with a convex mirror, the mother image can for example be projected into a solid angle higher than 2π steradians (i.e. a half-sphere), or even substantially equal to or slightly lower than 4π steradians (i.e. a sphere). A method implemented by the device is also described. The field of the invention is particularly that of video projectors for virtual or mixed reality applications.