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. 22, 2024
Filed:
May. 24, 2021
Lumus Ltd., Ness Ziona, IL;
Tsion Eisenfeld, Ashkelon, IL;
LUMUS LTD., Ness Ziona, IL;
Abstract
An optical system for directing image illumination injected at a coupling-in region towards a user for viewing includes a light-guide optical element (LOE) () with a pair of parallel major external surfaces (). A first region () of the LOE contains a first set of partially-reflecting surfaces () oriented to redirect image illumination propagating within the LOE towards a second region of the LOE (), which contains a second set of partially-reflecting surfaces () oriented to couple out the image illumination towards the user. The first set of partially-reflecting surfaces () extend across at least 95 percent of a thickness of the LOE, while the second set of partially-reflecting surfaces () are contained within a subsection of the thickness spanning less than 95 percent of the thickness, so that the second set of partially-reflecting surfaces () are excluded from one or both surface layers of the second region ().