公开(公告)号：US20240411132A1

公开(公告)日：2024-12-12

申请号：US18810604

申请日：2024-08-21

Applicant: Spectralics Ltd.

Inventor： Yuval KASHTER ,  Eran FALEK ,  Ran Abraham BAR-YOSEF

IPC: G02B27/01 ,  B60K35/23 ,  G02B27/00 ,  G02B27/28

Abstract: A layered structure for manipulating optical polarization for a head-up display application is provided herein. The layered structure includes: a Picture Generating Unit “PGU”, the structure adapted to receive polarized light oriented along a Transverse Magnetic “TM” polarization direction, from said PGU, said structure comprising: a first layer comprising a plano-convex lens, wherein the angle between the incidence angle and the optical axis of the plano-convex lens satisfies a Brewster angle; a first polarization manipulating layer adjoining said first layer and adapted to transform the polarization state of said polarized light; an optical partial reflective filter that is designed according to the polarization and reflectivity requirements; and a plano-concave lens, conjugated to the first plano-convex lens.

公开(公告)号：US20240329393A1

公开(公告)日：2024-10-03

申请号：US18738263

申请日：2024-06-10

Applicant: Spectralics Ltd.

Inventor： Yuval KASHTER ,  Eran FALEK ,  Ran Abraham BAR-YOSEF

IPC: G02B27/01 ,  G02B27/14

CPC classification number: G02B27/0101 ,  G02B27/142 ,  G02B2027/0194

Abstract: A multi-layered thin combiner (MLTC) is provided herein. The MLTC may include: a plurality of connectable layers each having a separate active area coated with a primary partially reflective filter, wherein each active area comprises a discrete fraction of an effective aperture; and wherein the active areas are configured to align, when said connectable layers are connected, to collectively define a complete effective aperture.

公开(公告)号：US20220260753A1

公开(公告)日：2022-08-18

申请号：US17483835

申请日：2021-09-24

Applicant: Spectralics Ltd.

Inventor： Eran Falek ,  Yuval Kashter ,  Ran Abraham BAR-YOSEF

IPC: G02B1/00 ,  G02B5/20 ,  G01M11/02

Abstract: A method of synthesizing an effective refractive index metamaterial, the method may include the steps of: a) analysing an effective index material by directing an electromagnetic plane-wave towards a surface of the metamaterial and calculating the polarization currents distribution field in the metamaterial, wherein the effective refractive index metamaterial is comprised of a plurality of layers of at least a first material having a first refractive index and at least a second material having a second refractive index; b) filtering and sampling the polarization currents distribution field according to the layers, wherein the layers comprise pre-determined parameters requirements, the parameters including at least one of: refractive indexes of the first material and the second material, effective refractive index of the layer and thickness of the layer; and c) determining a layer arrangement and thickness for the first and second materials comprising the plurality of layers.

公开(公告)号：US20220019123A1

公开(公告)日：2022-01-20

申请号：US17490609

申请日：2021-09-30

Applicant: Spectralics Ltd.

Inventor： Eran FALEK ,  Yuval KASHTER ,  Ran Abraham BAR-YOSEF

IPC: G02F1/35 ,  H01L49/02

Abstract: Described herein is a dynamic optical modulator including a plurality of pixels arranged in a grid, the pixels comprising a plurality of unit-cells, the unit-cell comprising a dielectric layer sandwiched between two at least partially conductive layers, wherein the optical characteristics of each of said unit-cells is controlled by the application of a voltage across each of the pixels of the plurality of pixels.