公开(公告)号：US11573371B2

公开(公告)日：2023-02-07

申请号：US17312443

申请日：2020-11-10

Applicant: Lumus Ltd.

Inventor： Motke Gilo ,  Tsion Eisenfeld ,  Yochay Danziger

IPC: G02B6/10 ,  G02B6/00 ,  G02B6/27 ,  G02F1/01 ,  G02B1/115

Abstract: A lightguide optical element (LOE) configured for polarization scrambling is provided. The LOE includes a transparent substrate having a first refractive index, the substrate having a pair of parallel external surfaces configured to propagate light within the LOE through total internal reflection (TIR), and a plurality of mutually parallel partially reflective internal surfaces, those being non-parallel to the pair of parallel external surfaces and configured to couple out said light to a viewer. The LOE further includes a first coating on at least one external surface of the substrate, the first coating being of a coating material having a second refractive index higher than the first refractive index; The LOE further includes an antireflective (AR) coating on at least one external surface of the substrate over the first coating.

公开(公告)号：US11947130B2

公开(公告)日：2024-04-02

申请号：US17290764

申请日：2019-11-07

Applicant: Lumus Ltd.

Inventor： Eitan Ronen ,  Motke Gilo

IPC: G02B27/28 ,  G02B27/12 ,  G02B27/14

CPC classification number: G02B27/283 ,  G02B27/126 ,  G02B27/141 ,  G02B27/286

Abstract: A first dichroic beamsplitter is deployed in a first prism on a plane oblique to a light-wave entrance surface. A second dichroic beamsplitter is deployed in a second prism on a plane oblique to a light-wave entrance surface such that polarized light in a first polarization state relative to the first dichroic beamsplitter is in a second polarization state relative to the second dichroic beamsplitter. The first dichroic beamsplitter transmits polarized light of a first color in the first polarization state relative to the first dichroic beamsplitter, and reflects polarized light of a second color in the first polarization state relative to the first dichroic beamsplitter. The second dichroic beamsplitter transmits polarized light of the first and second colors in a second polarization state relative to the second dichroic beamsplitter, and reflects polarized light of a third color in the first polarization state relative to the second dichroic beamsplitter.

公开(公告)号：US12181687B2

公开(公告)日：2024-12-31

申请号：US18586678

申请日：2024-02-26

Applicant: Lumus Ltd.

Inventor： Eitan Ronen ,  Motke Gilo

IPC: G02B27/28 ,  G02B27/12 ,  G02B27/14

Abstract: A first dichroic beamsplitter is deployed in a first prism on a plane oblique to a light-wave entrance surface. A second dichroic beamsplitter is deployed in a second prism on a plane oblique to a light-wave entrance surface such that polarized light in a first polarization state relative to the first dichroic beamsplitter is in a second polarization state relative to the second dichroic beamsplitter. The first dichroic beamsplitter transmits polarized light of a first color in the first polarization state relative to the first dichroic beamsplitter, and reflects polarized light of a second color in the first polarization state relative to the first dichroic beamsplitter. The second dichroic beamsplitter transmits polarized light of the first and second colors in a second polarization state relative to the second dichroic beamsplitter, and reflects polarized light of a third color in the first polarization state relative to the second dichroic beamsplitter.