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    LIGHT MODULATION DEVICE FOR A DISPLAY FOR REPRESENTING TWO- AND/OR THREE-DIMENSIONAL IMAGE CONTENT
    1.
    发明申请
    LIGHT MODULATION DEVICE FOR A DISPLAY FOR REPRESENTING TWO- AND/OR THREE-DIMENSIONAL IMAGE CONTENT 有权

    公开(公告)号：US20220229335A1

    公开(公告)日：2022-07-21

    申请号：US17711207

    申请日：2022-04-01

    Applicant: SEEREAL TECHNOLOGIES S.A.

    Inventor： Bo KROLL ,  Norbert LEISTER ,  Gerald FUTTERER ,  Robert MISSBACH ,  Stephan REICHELT

    IPC: G02F1/1343 ,  G02F1/1347 ,  G02F1/29 ,  G03H1/02 ,  G03H1/22 ,  G02B30/20 ,  G02B30/00

    Abstract: The invention relates to a light modulation device for a display for representing two- and/or three-dimensional image content or image sequences. The light modulation device comprises a light modulator and a controller. The phase and/or the amplitude of a light wave field, which is substantially collimated, can be varied by means of the light modulator depending on the location of the light modulator. The light modulator can be actuated by means of the control device. According to the invention, in the direction of propagation of the light wave field, at least one diffracting unit is arranged downstream of the light modulator. The diffracting unit has a variable diffracting structure. By means of the diffracting structure, the light wave field varied by the light modulator can be diffracted in a variable and predeterminable manner. Further, the present invention relates to a display and a method for producing a light modulation device.

    LIGHT MODULATOR DEVICE FOR A DISPLAY FOR REPRESENTING TWO- AND/OR THREE-DIMENSIONAL IMAGE CONTENT
    2.
    发明申请
    LIGHT MODULATOR DEVICE FOR A DISPLAY FOR REPRESENTING TWO- AND/OR THREE-DIMENSIONAL IMAGE CONTENT 审中-公开

    公开(公告)号：US20200379272A1

    公开(公告)日：2020-12-03

    申请号：US16901432

    申请日：2020-06-15

    Applicant: SEEREAL TECHNOLOGIES S.A.

    Inventor： Bo KROLL ,  Norbert LEISTER ,  Gerald FUTTERER ,  Robert MISSBACH ,  Stephan REICHELT

    IPC: G02B30/00 ,  G03H1/22 ,  G02F1/1343 ,  G02F1/29 ,  G02F1/1347 ,  G03H1/02

    Abstract: The invention relates to a light modulation device for a display for representing two- and/or three-dimensional image content or image sequences. The light modulation device comprises a light modulator and a controller. The phase and/or the amplitude of a light wave field, which is substantially collimated, can be varied by means of the light modulator depending on the location of the light modulator. The light modulator can be actuated by means of the control device. According to the invention, in the direction of propagation of the light wave field, at least one diffracting unit is arranged downstream of the light modulator. The diffracting unit has a variable diffracting structure. By means of the diffracting structure, the light wave field varied by the light modulator can be diffracted in a variable and predeterminable manner. Further, the present invention relates to a display and a method for producing a light modulation device.

    DEVICE FOR COMBINING LIGHT BEAMS WHICH INTERACT WITH ADJACENTLY ARRANGED PIXELS OF A LIGHT MODULATOR
    3.
    发明申请
    DEVICE FOR COMBINING LIGHT BEAMS WHICH INTERACT WITH ADJACENTLY ARRANGED PIXELS OF A LIGHT MODULATOR 审中-公开

    公开(公告)号：US20200033672A1

    公开(公告)日：2020-01-30

    申请号：US16337585

    申请日：2017-09-29

    Applicant: SEEREAL TECHNOLOGIES S.A.

    Inventor： Norbert LEISTER ,  Stephan REICHELT

    IPC: G02F1/1335 ,  G02F1/13363 ,  G03H1/22

    Abstract: The present invention relates to a device for combining light beams which interact with adjacently arranged pixels of a light modulator. The present invention furthermore relates to a device for beam combination and to a spatial light modulation device for complex-valued modulation. The invention relates to a device for beam combination, and to an optical arrangement of polarization-sensitive component parts which allows complex-valued modulation of a light field by means of a phase-modulating light modulator and a beam combiner, which is insensitive to changes in the incidence direction of the illumination wave. This document furthermore also relates to various arrangements of reflectively operating light modulators.

    LIGHT MODULATOR DEVICE USED FOR A DISPLAY FOR THE PRESENTATION OF TWO- AND/OR THREE-DIMENSIONAL IMAGE CONTENTS
    5.
    发明申请
    LIGHT MODULATOR DEVICE USED FOR A DISPLAY FOR THE PRESENTATION OF TWO- AND/OR THREE-DIMENSIONAL IMAGE CONTENTS 有权

    公开(公告)号：US20210278694A1

    公开(公告)日：2021-09-09

    申请号：US17315949

    申请日：2021-05-10

    Applicant: SEEREAL TECHNOLOGIES S.A.

    Inventor： Bo KROLL ,  Norbert LEISTER ,  Gerald FUTTERER ,  Robert MISSBACH ,  Stephan REICHELT

    IPC: G02B30/00 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/29 ,  G03H1/02 ,  G03H1/22

    Abstract: The invention relates to a light modulation device for a display for representing two- and/or three-dimensional image content or image sequences. The light modulation device comprises a light modulator and a controller. The phase and/or the amplitude of a light wave field, which is substantially collimated, can be varied by means of the light modulator depending on the location of the light modulator. The light modulator can be actuated by means of the control device. According to the invention, in the direction of propagation of the light wave field, at least one diffracting unit is arranged downstream of the light modulator. The diffracting unit has a variable diffracting structure. By means of the diffracting structure, the light wave field varied by the light modulator can be diffracted in a variable and predeterminable manner. Further, the present invention relates to a display and a method for producing a light modulation device.

    DEVICE FOR COMBINING LIGHT BEAMS WHICH INTERACT WITH ADJACENTLY ARRANGED PIXELS OF A LIGHT MODULATOR
    6.
    发明申请
    DEVICE FOR COMBINING LIGHT BEAMS WHICH INTERACT WITH ADJACENTLY ARRANGED PIXELS OF A LIGHT MODULATOR 有权

    公开(公告)号：US20210109404A1

    公开(公告)日：2021-04-15

    申请号：US17129059

    申请日：2020-12-21

    Applicant: SEEREAL TECHNOLOGIES S.A.

    Inventor： Norbert LEISTER ,  Stephan REICHELT

    IPC: G02F1/1335 ,  G02F1/13363 ,  G03H1/22

    Abstract: A device for combining light beams which interact with adjacently arranged pixels of a light modulator, having a beam splitting component, a beam combining component, and a beam superposition component. The beam splitting component is configured such that incident light beams are split into a first subbeam and a second subbeam so that the first subbeam propagates toward a first pixel of the light modulator and the second subbeam propagates toward a second pixel of the light modulator. The beam combining component is configured and arranged so that the first subbeam and the second subbeam are combined after interaction with pixels of the light modulator. The beam splitting component and the beam combining component are configured and arranged in such a way that a sum of optical path lengths of the first subbeam and the second subbeam is respectively constant for different angles of incidence.

    HOLOGRAPHIC DIRECT VIEW DISPLAY HAVING AN APODIZATION DEVICE
    8.
    发明申请
    HOLOGRAPHIC DIRECT VIEW DISPLAY HAVING AN APODIZATION DEVICE 有权
    具有APODIZED设备的全息直观视图显示

    公开(公告)号：US20140198361A1

    公开(公告)日：2014-07-17

    申请号：US14212706

    申请日：2014-03-14

    Applicant: SEEREAL TECHNOLOGIES S.A.

    Inventor： Norbert LEISTER ,  Stephan REICHELT

    IPC: G03H1/08

    CPC classification number: G03H1/0808 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2001/0816 ,  G03H2001/2242 ,  G03H2001/2271 ,  G03H2222/18 ,  G03H2222/35 ,  G03H2223/12 ,  G03H2225/55

    Abstract: The invention relates to apodization in a holographic direct view display. Known apodization functions are utilized/modified for an apodization mask such that the functions reduce the intensities of selected higher magnitudes of diffractions. The holographic direct view display comprises a controllable light modulator having modulator cells and modulating impinging coherent light into a phase and/or amplitude, and an array of apodization masks. The apodization masks have the same apodization function for a predetermined group of modulator cells, by means of which function a complex amplitude transparency can be set for the modulator cells. This transparency corresponds to an individually predefined course of intensity in a far field of the light modulator, wherein the predefined course of intensity includes a reducing of the light intensity of higher magnitudes of diffractions, and/or of the interfering light emitted by the light modulator.

    Abstract translation: 本发明涉及全息直视图显示中的变迹。 对于变迹掩模使用/修改已知的变迹函数，使得函数降低所选择的更高的衍射幅度的强度。 全息直视图显示器包括具有调制器单元并将入射相干光调制成相位和/或幅度的可控光调制器以及变迹掩模阵列。 变迹掩模对于预定的一组调制器单元具有相同的变迹功能，通过该调制器单元，功能可以为调制器单元设置复振幅透明度。 该透明度对应于光调制器的远场中的单独预定的强度过程，其中预定的强度过程包括降低较高的衍射幅度和/或由光调制器发射的干涉光的光强度 。

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