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：US20190227492A1

公开(公告)日：2019-07-25

申请号：US16317328

申请日：2017-07-12

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo KROLL ,  Norbert LEISTER

IPC: G03H1/26 ,  G02B27/00 ,  G02B5/30 ,  G02B5/18 ,  G03H1/02 ,  G09G3/00 ,  G09G3/02

Abstract: The invention relates to a display device, in particular a head-mounted display or a head-up display, for representing a two-dimensional and/or three-dimensional scene. The display device comprises a spatial light modulator device having pixels, and a beam offset device. The spatial light modulator device is illuminatable with light. The beam offset device is configured to be controllable in such a way that the light modulated by the pixels of the spatial light modulator device is laterally displaceable by less than one pixel extent.

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。

公开(公告)号：US20160004219A1

公开(公告)日：2016-01-07

申请号：US14755781

申请日：2015-06-30

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Norbert LEISTER ,  Gerald FUETTERER ,  Bo KROLL ,  Hagen STOLLE

IPC: G03H1/22 ,  G03H1/08 ,  G02B26/08 ,  G02B5/32 ,  G03H1/32 ,  H04N9/31

CPC classification number: G03H1/2294 ,  G02B5/32 ,  G02B26/0833 ,  G03B21/008 ,  G03H1/0005 ,  G03H1/08 ,  G03H1/2286 ,  G03H1/32 ,  H04N9/3126 ,  H04N9/3161 ,  H04N9/3164 ,  H04N9/3197

Abstract: A projection device is provided for displaying at least one of a two-dimensional and three-dimensional scene or of content. The projection device comprises an illumination device, at least two spatial light modulator devices and an optical system. The illumination device comprises at least one light source for generating a holographic illumination. One of said spatial light modulator devices is designed as spatial light modulator device modulating at least the phase of the light for the holographical generation of illumination patterns. This spatial light modulator device as first spatial light modulator device is followed by a second spatial light modulator device. The optical system is disposed to illuminate the second spatial light modulator device with a predefinable light distribution generated by the first spatial light modulator device.

Abstract translation: 提供了一种用于显示二维和三维场景或内容中的至少一个的投影设备。 投影装置包括照明装置，至少两个空间光调制装置和光学系统。 照明装置包括用于产生全息照明的至少一个光源。 所述空间光调制器件中的一个被设计为空间光调制器装置，至少调制用于全息照射图案的光的相位。 该空间光调制装置作为第一空间光调制装置，其后面是第二空间光调制装置。 光学系统设置成用第一空间光调制器装置产生的可预定的光分布来照亮第二空间光调制器装置。

公开(公告)号：US20200166754A1

公开(公告)日：2020-05-28

申请号：US16630648

申请日：2018-07-12

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Norbert LEISTER ,  Bo KROLL ,  Gerald FUTTERER

IPC: G02B27/01 ,  G02B5/18 ,  G02B27/00 ,  F21V8/00

Abstract: A display device for representing two-dimensional and/or three-dimensional objects or scenes, having at least one spatial light modulation device having pixels for modulating light, at least one optical system, and at least one light guiding device. Light beams originating from the individual pixels of the spatial light modulation device are incident on the at least one light guiding device at different angles on average in relation to the surface of the at least one light guiding device and can be coupled therein, whereby a coupling angular spectrum is definable. The light beams propagating in the at least one light guiding device can be coupled out of the at least one light guiding device at different angles on average in relation to an observer region, whereby a decoupling angular spectrum is definable. The decoupling angular spectrum is enlarged in comparison to the coupling angular spectrum.

公开(公告)号：US20180364643A1

公开(公告)日：2018-12-20

申请号：US15563016

申请日：2016-03-29

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo KROLL ,  Norbert LEISTER

IPC: G03H1/26

Abstract: The invention relates to methods for computing holograms for holographic reconstruction of two-dimensional and/or three-dimensional scenes in a display apparatus, wherein a scene for reconstruction is broken down into object points and the object points are encoded as sub-holograms into at least one spatial light modulation device of the display apparatus. A reconstructed scene is viewed from a region of visibility. At least one virtual plane of the at least one spatial light modulation device is stipulated on the basis of a real plane of the spatial light modulation device. A computation of sub-holograms is performed in the at least one virtual plane of the at least one spatial light modulation device.

公开(公告)号：US20170357098A1

公开(公告)日：2017-12-14

申请号：US15687585

申请日：2017-08-28

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo KROLL ,  Gerald FUTTERER ,  Norbert LEISTER ,  Stephan REICHELT ,  Ralf HAUSSLER

IPC: G02B27/22 ,  G02B27/00 ,  G03H1/02 ,  H04N13/04 ,  G03H1/22 ,  G02F1/29 ,  G02B26/08 ,  G02B5/32 ,  G03H1/26 ,  G02F1/13

CPC classification number: G02B27/22 ,  G02B5/32 ,  G02B26/08 ,  G02B27/0093 ,  G02B27/2214 ,  G02B27/225 ,  G02F1/1313 ,  G02F1/292 ,  G03H1/02 ,  G03H1/22 ,  G03H1/2205 ,  G03H1/2294 ,  G03H1/2645 ,  G03H1/265 ,  G03H2001/0212 ,  G03H2001/221 ,  G03H2001/2223 ,  G03H2001/2236 ,  G03H2001/2242 ,  G03H2001/2292 ,  G03H2001/2655 ,  G03H2001/266 ,  G03H2222/34 ,  G03H2222/36 ,  G03H2225/33 ,  G03H2226/05 ,  H04N13/305 ,  H04N13/31 ,  H04N13/32 ,  H04N13/322 ,  H04N13/366

Abstract: For comfortable viewing of a 3-D scene at various viewing angles, a display having a large tracking range for a variable viewer distance is required. A controllable light-influencing element deflects light in coarse steps in a viewer range. Within said steps, the light is deflected by a further controllable light-influencing element continuously or with fine gradation. The light modulation device is suitable in holographic or autostereoscopic displays for guiding the visibility ranges of the image information to be displayed so as to follow the eyes of the viewers.

公开(公告)号：US20150022745A1

公开(公告)日：2015-01-22

申请号：US14488353

申请日：2014-09-17

Applicant: SEEREAL TECHNOLOGIES S.A.

Inventor： Bo KROLL ,  Norbert LEISTER

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/1337 ,  G02B27/22

CPC classification number: G02F1/134363 ,  G02B27/22 ,  G02F1/133528 ,  G02F1/1337 ,  G02F1/1393 ,  G02F1/292 ,  G02F2001/133541

Abstract: A phase modulator for the modulation of the phase of circular polarised light which interacts with the phase modulator. The phase modulator has a first and a second substrate, an electrode arrangement and a liquid crystal layer with liquid crystal molecules. The first substrate is disposed adjacent to the second substrate. The liquid crystal layer is disposed between the two substrates. The first substrate has a first surface, and the second substrate has a second surface. The liquid crystal molecules situated next to the first surface are oriented substantially parallel to the first surface. The liquid crystal molecules situated next to the second surface are oriented substantially perpendicular to the second surface. An in-plane component of the liquid crystal molecule orientation can be set within an angular range of about 180°, e.g. between −90° and +90° related to a specifiable central orientation.

Abstract translation: 用于调制与相位调制器相互作用的圆偏振光相位的相位调制器。 相位调制器具有第一和第二基板，电极布置和具有液晶分子的液晶层。 第一衬底被布置成与第二衬底相邻。 液晶层设置在两个基板之间。 第一基板具有第一表面，第二基板具有第二表面。 位于第一表面附近的液晶分子被取向为基本上平行于第一表面。 位于第二表面附近的液晶分子取向为基本上垂直于第二表面。 液晶分子取向的面内分量可以设定在约180°的角度范围内，例如， 在-90°和+ 90°之间，与可指定的中心方向有关。