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. 08, 2026
Filed:
Apr. 08, 2024
Lumus Ltd., Ness Ziona, IL;
Yochay Danziger, Kfar Vradim, IL;
LUMUS LTD., Ness Ziona, IL;
Abstract
An optical aperture multiplier includes a first optical waveguide () having a rectangular cross-section and including partially reflecting surfaces () at an oblique angle to a direction of elongation of the waveguide. A second optical waveguide (), also including partially reflecting surfaces () at an oblique angle, is optically coupled with the first optical waveguide (). An image coupled into the first optical waveguide with an initial direction of propagation at an oblique coupling angle advances by four-fold internal reflection along the first optical waveguide, with a proportion of intensity of the image reflected at the partially reflecting surfaces so as to be coupled into the second optical waveguide, and then propagates through two-fold reflection within the second optical waveguide, with a proportion of intensity of the image reflected at the partially reflecting surfaces so as to be directed outwards from one of the parallel faces as a visible image.