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:
Jul. 05, 2022
Filed:
Oct. 08, 2019
Lumus Ltd., Ness Ziona, IL;
Yochay Danziger, Kfar Vradim, IL;
Edgar Friedmann, Sdey-Avraham, IL;
LUMUS LTD., Ness Ziona, IL;
Abstract
A light-guide device includes a light guiding element () with a number of faces, including two parallel faces (), for guiding light by internal reflection. A transparent optical element () has an interface surface for attachment to a coupling surface () of the light guiding element, and is configured such that light propagating within the transparent optical element passes through the interface surface and the coupling surface () so as to propagate within the light guiding element (). A non-transparent coating () is applied to at least part of one or more faces of the light guiding element (), defining an edge () adjacent to, or overlapping, the coupling surface () of the light guiding element (). A quantity of transparent adhesive is deployed between the coupling surface and the interface surface so as to form an optically transmissive interface. An overspill regionof the adhesive extends to, and overlaps, the edge ().