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    Compact head-mounted display system having uniform image
    61.
    发明授权
    Compact head-mounted display system having uniform image 有权

    公开(公告)号：US11531201B2

    公开(公告)日：2022-12-20

    申请号：US17060268

    申请日：2020-10-01

    Applicant: Lumus Ltd.

    Inventor： Yaakov Amitai

    IPC: G02B27/01 ,  G02B27/14 ,  G02B27/28 ,  F21V8/00 ,  G02B27/00

    Abstract: There is disclosed an optical device, including a light-transmitting substrate having an input aperture, an output aperture, at least two major surfaces and edges, an optical element for coupling light waves into the substrate by total internal reflection, at least one partially reflecting surface located between the two major surfaces of the light-transmitting substrate for partially reflecting light waves out of the substrate, a first transparent plate, having at least two major surfaces, one of the major surfaces of the transparent plate being optically attached to a major surface of the light-transmitting substrate defining an interface plane, and a beam-splitting coating applied at the interface plane between the substrate and the transparent plate, wherein light waves coupled inside the light-transmitting substrate are partially reflected from the interface plane and partially pass therethrough.

    Substrate-guide optical device
    62.
    发明授权
    Substrate-guide optical device 有权

    公开(公告)号：US11099389B2

    公开(公告)日：2021-08-24

    申请号：US16429073

    申请日：2019-06-03

    Applicant: LUMUS LTD.

    Inventor： Yaakov Amitai

    IPC: G02B27/10 ,  G02B6/10 ,  G02B27/28 ,  G02B27/14 ,  G02B27/01 ,  F21V8/00 ,  G02B27/00 ,  B29D11/00 ,  G02C11/00 ,  G02B5/30 ,  G02B6/00

    Abstract: A method fabricates an optical device that includes at least one partially reflecting surface and a light-wave transmitting substrate is fabricated. A plurality of transparent plates is obtained. At least one surface of at least one of the transparent plates is coated with a partially reflecting coating to form the at least one partially reflecting surface. The plates are arranged in a stack and attached to each other. The plates at the opposing ends of the stack are thicker than the remaining plates in the stack. The stack is sliced to form the substrate such that the substrate has two major external surfaces. The substrate is grinded or polished, and at least one of the two major external surfaces is coated with a coating that compensates for non-uniformity of the substrate.

    Compact head-mounted display system
    63.
    发明授权
    Compact head-mounted display system 有权

    公开(公告)号：US10908426B2

    公开(公告)日：2021-02-02

    申请号：US16260161

    申请日：2019-01-29

    Applicant: LUMUS LTD.

    Inventor： Yaakov Amitai

    IPC: G02B27/01 ,  G02B5/04 ,  G02B5/30 ,  G02B27/00 ,  G02B27/28 ,  G02B27/30

    Abstract: There is provided an optical system, including a light-transmitting substrate (20) having at least two major surfaces (26) and edges, all optical prism (54) having at least a first (58), a second (56) and a third (60) surface, for coupling light waves having a given field-of-view into the substrate by total internal reflection, at least one partially reflecting surface located in the substrate, the partially reflecting surface being orientated non-parallelly with respect to the major surfaces of the substrate, for coupling light waves out of the substrate, at least one of the edges (50) of the substrate is slanted at an oblique angle with respect to the major surfaces, the second surface of the prism is located adjacent to the slanted edge of the substrate, and a part of the substrate located next to the slanted edge is substantially transparent, wherein the light waves enter the prism through the first surface of the prism, traverse the prism without any reflection and enter the substrate through the slanted edge.

    Polarizing optical system
    64.
    发明授权
    Polarizing optical system 有权

    公开(公告)号：US10261321B2

    公开(公告)日：2019-04-16

    申请号：US15289712

    申请日：2016-10-10

    Applicant: LUMUS LTD.

    Inventor： Yaakov Amitai

    IPC: G02B5/30 ,  G02B27/01 ,  G02B27/28 ,  G02B6/34 ,  F21V8/00

    Abstract: There is provided an optical system, including a light-transmitting substrate having at least two major surfaces parallel to each other edges, and an optical device for coupling light into the substrate by total internal reflection. The device includes a polarization sensitive reflecting surface.

    COMPACT HEAD-MOUNTED DISPLAY SYSTEM HAVING UNIFORM IMAGE
    66.
    发明申请
    COMPACT HEAD-MOUNTED DISPLAY SYSTEM HAVING UNIFORM IMAGE 审中-公开

    公开(公告)号：US20180039082A1

    公开(公告)日：2018-02-08

    申请号：US15549603

    申请日：2016-02-10

    Applicant: LUMUS LTD.

    Inventor： Yaakov Amitai

    IPC: G02B27/01 ,  G02B27/14 ,  F21V8/00

    CPC classification number: G02B27/0172 ,  G02B6/00 ,  G02B6/0016 ,  G02B6/0035 ,  G02B27/0081 ,  G02B27/0176 ,  G02B27/142 ,  G02B27/145 ,  G02B27/148 ,  G02B2027/012 ,  G02B2027/0125 ,  G02B2027/015 ,  G02B2027/0178

    Abstract: There is disclosed an optical device, including a light-transmitting substrate having an input aperture, an output aperture, at least two major surfaces and edges, an optical element for coupling light waves into the substrate by total internal reflection, at least one partially reflecting surface located between the two major surfaces of the light-transmitting substrate for partially reflect ing light waves out of the substrate, a first transparent plate, having at least two major surfaces, one of the major surfaces of the transparent plate being optically attached to a major surface of the light-transmitting substrate defining an interface plane, and a beam-splitting coating applied at the interface plane between the substrate and the transparent plate, wherein light waves coupled in side the light-transmitting substrate are partially reflected from the interface plane and partially pass therethrough.

    COMPACT HEAD-MOUNTED DISPLAY SYSTEM PROTECTED BY A HYPERFINE STRUCTURE
    67.
    发明申请
    COMPACT HEAD-MOUNTED DISPLAY SYSTEM PROTECTED BY A HYPERFINE STRUCTURE 审中-公开

    公开(公告)号：US20170336636A1

    公开(公告)日：2017-11-23

    申请号：US15525366

    申请日：2015-11-10

    Applicant: LUMUS LTD.

    Inventor： Yaakov Amitai ,  Yuval Ofir ,  Elad Mor

    IPC: G02B27/01 ,  G02B6/34

    CPC classification number: G02B27/0172 ,  G02B6/34 ,  G02B2027/0178

    Abstract: There is provided an optical system, including a light-transmitting substrate (20) having at least two external major surfaces and edges, an optical element for coupling light waves into the substrate (20) by internal reflection, at least one partially reflecting surface located in the substrate (20), for coupling light waves out of the substrate (20), at least one transparent air gap film (110) including a base (112) and a hyperfine structure (111) defining a relief formation, constructed on the base, wherein the air gap film is attached to one of the major surfaces of the substrate (20), with the relief formation facing the substrate (20) defining an interface plane (58), so that the light waves coupled inside the substrate (20) are substantially totally reflected from the interface plane (58).

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