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.

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.

公开(公告)号：US20180217554A1

公开(公告)日：2018-08-02

申请号：US15928891

申请日：2018-03-22

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo KROLL ,  Robert MISSBACH ,  Alexander SCHWERDTNER

IPC: G03H1/04 ,  G02B26/08

Abstract: Disclosed is a holographic display including a spatial light modulator (SLM) with pixels, the SLM pixels being on a substrate, the SLM including circuitry which is on the same substrate as the SLM pixels, the circuitry operable to perform calculations which provide an encoding of the SLM.

公开(公告)号：US20230315014A1

公开(公告)日：2023-10-05

申请号：US18020791

申请日：2021-08-06

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Enrico ZSCHAU ,  Johannes PLEIKIES ,  Robert MISSBACH

IPC: G03H1/22 ,  G03H1/08

CPC classification number: G03H1/2294 ,  G03H1/0891 ,  G03H2226/05 ,  G03H2226/02

Abstract: The invention relates to a preprocessing circuit for at least one hologram computation circuit that comprises an input interface device for receiving data of a scene to be displayed, a processing device for defined processing of the received data and for converting the data into a system-independent format with incorporation of specific parameters required for displaying the scene, and an output interface device for outputting and transmitting the converted data to at least one hologram computation circuit. An apparatus for computing a hologram for displaying a scene by means of a holographic display apparatus is also disclosed. The apparatus comprises at least one spatial light modulation device and a preprocessing circuit as described, and at least one hologram computation circuit for computing a hologram and for encoding the hologram for the at least one spatial light modulation device.

公开(公告)号：US20220247982A1

公开(公告)日：2022-08-04

申请号：US17595402

申请日：2020-05-14

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo KROLL ,  Norbert LEISTER ,  Jacob FUGAL ,  Robert MISSBACH

IPC: H04N9/31

Abstract: The invention relates to a display apparatus which comprises an illumination device for emitting light, a spatial light modulation device for modulating incident light, an optical system and a control device. The optical system is provided for generating at least one image of the spatial light modulation device as a segment, where the optical system further comprises a deflection device for directing the image of the spatial light modulation device to a defined position in the field of view of a user. The control device is coupled to the illumination device and the deflection device and embodied to switch the illumination device on the basis of a control of the deflection device.

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.

公开(公告)号：US20160291544A1

公开(公告)日：2016-10-06

申请号：US15148142

申请日：2016-05-06

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo KROLL ,  Robert MISSBACH ,  Alexander SCHWERDTNER

IPC: G03H1/04 ,  G03H1/00 ,  G03H1/32 ,  G03H1/26 ,  G03H1/08 ,  G06F3/01 ,  G03H1/02

CPC classification number: G03H1/0443 ,  G02B26/0875 ,  G03H1/0005 ,  G03H1/02 ,  G03H1/08 ,  G03H1/0808 ,  G03H1/2205 ,  G03H1/2294 ,  G03H1/268 ,  G03H1/32 ,  G03H2001/0088 ,  G03H2001/0216 ,  G03H2001/0224 ,  G03H2001/0833 ,  G03H2001/2242 ,  G03H2001/2271 ,  G03H2001/2625 ,  G03H2210/30 ,  G03H2210/36 ,  G03H2210/44 ,  G03H2222/20 ,  G03H2222/22 ,  G03H2222/24 ,  G03H2223/18 ,  G03H2223/19 ,  G03H2225/22 ,  G03H2225/55 ,  G03H2226/02 ,  G03H2226/04 ,  G03H2226/05 ,  G06F3/013 ,  G09G3/20 ,  G09G2300/026 ,  G09G2300/0408 ,  G09G2300/0809

Abstract: Disclosed is a holographic display including a spatial light modulator (SLM) with pixels, the SLM pixels being on a substrate, the SLM including circuitry which is on the same substrate as the SLM pixels, the circuitry operable to perform calculations which provide an encoding of the SLM.

Abstract translation: 公开了一种全息显示器，其包括具有像素的空间光调制器（SLM），所述SLM像素位于衬底上，所述SLM包括与所述SLM像素在同一衬底上的电路，所述电路可操作以执行提供编码的 SLM。