公开(公告)号：WO2023057689A1

公开(公告)日：2023-04-13

申请号：PCT/FI2022/050665

申请日：2022-10-06

申请人： DISPELIX OY

发明人： BLOMSTEDT, Kasimir

IPC分类号： F21V8/00 ,  G02B2027/0112 ,  G02B2027/0127 ,  G02B2027/014 ,  G02B6/0035 ,  G02B6/0068

摘要： According to an example aspect of the present invention, there is provided an optical waveguide arrangement comprising, at least one light source arranged to transmit light signals to at least one optical waveguide of the optical waveguide arrangement and the at least one optical waveguide, wherein the at least one optical waveguide is arranged to receive the light signals from the at least one light source and to convey the light signals, to generate a waveguide-based display, the at least one optical waveguide being further arranged to generate a first image at a first focal plane of the optical waveguide arrangement when at least some of the received light signals have a set of first spectral characteristics and to generate a second image at a second focal plane of the optical waveguide arrangement when at least some of the received light signals have a set of second spectral characteristics, wherein at least one spectral characteristic of the set of first spectral characteristics is different compared to the set of second spectral characteristics.

公开(公告)号：WO2021257227A1

公开(公告)日：2021-12-23

申请号：PCT/US2021/033023

申请日：2021-05-18

申请人： FACEBOOK TECHNOLOGIES, LLC

发明人： HALL, Michael ,  ZHU, Zhaoming ,  SU, Shuochen ,  RONCHINI XIMENES, Augusto

IPC分类号： G01S7/481 ,  G01S17/89 ,  G02B27/01 ,  G02F1/29 ,  G01S7/4861 ,  G01S7/484 ,  G01S7/4863 ,  G01S7/4865 ,  G01S17/894 ,  G01S17/86 ,  G01S7/4815 ,  G01S7/4817 ,  G01S7/487 ,  G02B2027/0127 ,  G02B2027/0138 ,  G02B2027/0178 ,  G02B27/017 ,  G02B27/0172

摘要： A direct time of flight depth system (340) includes an addressable illumination source (350), an active depth sensor (355), and a controller (360). The addressable illumination source (350) includes an array of emitters (e.g., vertical-cavity-surface-emitting lasers, VCSELs) and an optical assembly that is used to generate an array of dots emitted into a local area (345). Each emitter is independently addressable, allowing selective illumination of different portions of the local area (345). The addressable illumination source (350) is aligned with the active depth sensor (355) so each dot maps to a corresponding macropixel (e.g., 4 x 4 array of SPADs) on the active depth sensor (355). Data from the active depth sensor (355) is read out and used to determine depth information.

公开(公告)号：WO2023057543A1

公开(公告)日：2023-04-13

申请号：PCT/EP2022/077768

申请日：2022-10-06

申请人： VIVIDQ LIMITED

发明人： NEWMAN, Alfred James ,  SULLIVAN, Darius Martin

IPC分类号： G03H1/22 ,  G03H1/04 ,  G02B2027/0127 ,  G02B27/0081 ,  G02B27/0172 ,  G02B27/4272 ,  G03H1/0808 ,  G03H1/2205 ,  G03H1/2294 ,  G03H2001/2239 ,  G03H2001/2242 ,  G03H2001/2284 ,  G03H2223/16

摘要： A method of displaying a target light field using an image-replicating combiner is described. The method comprises determining a target light field to be displayed at a viewing location;determining a transfer function describing the propagation of light through the image-replicating combiner between the viewing location and an input location near to an input surface of the image-replicating combiner; determining an input light field by applying the determined transfer function to the target light field; and displaying the input light field at the input location. A display system to display a target light field is also described.

公开(公告)号：WO2023057226A1

公开(公告)日：2023-04-13

申请号：PCT/EP2022/076370

申请日：2022-09-22

申请人： AMS-OSRAM INTERNATIONAL GMBH

发明人： SORG, Jörg Erich

IPC分类号： G02B27/01 ,  G02C7/06 ,  G02B27/00 ,  G02B2027/0127 ,  G02B27/0093 ,  G02B27/0172

摘要： Es wird eine Komponente (20) für eine Datenbrille (21) angegeben, die Komponente (20) umfassend eine Strahlungsquelle (22), welche dazu ausgelegt ist im Betrieb elektromagnetische Strahlung zu emittieren, ein multifokales Element (23) mit mindestens einem ersten Bereich (24) und mindestens einem zweiten Bereich (25), und ein Abbildungssystem (26), welches dazu ausgelegt ist von der Strahlungsquelle (22) emittierte elektromagnetische Strahlung in einen Bereich außerhalb der Komponente (20) abzubilden, wobei der erste Bereich (24) eine unveränderbare erste Brechkraft aufweist und der zweite Bereich (25) eine von der ersten Brechkraft verschiedene unveränderbare zweite Brechkraft aufweist, das multifokale Element (23) im Abbildungssystem (26) angeordnet ist, und der erste Bereich (24) und der zweite Bereich (25) konzentrisch zueinander angeordnet sind. Außerdem wird eine Datenbrille (21) angegeben.

公开(公告)号：WO2021198190A1

公开(公告)日：2021-10-07

申请号：PCT/EP2021/058178

申请日：2021-03-29

申请人： ENVISICS LTD

发明人： CHRISTMAS, Jamieson ,  COLE, Alexander ,  KARNER, Máté ,  CHOWDHURY, Sahar

IPC分类号： G02B27/01 ,  B60K35/00 ,  G03H1/22 ,  G02B30/52 ,  G02B27/48 ,  G03H1/32 ,  B60K2370/1529 ,  G02B2027/0107 ,  G02B2027/0127 ,  G02B2027/0145 ,  G02B2027/0185 ,  G02B27/0101 ,  G02B27/0103 ,  G03H1/2294

摘要： A head-up display is described. A spatial light modulator is arranged to display a diffractive pattern of first picture content and/or second picture content. A screen assembly has first and second diffusers arranged in a stepped configuration so that the first diffuser is spatially offset from the second diffuser by a perpendicular distance. A light source is arranged to illuminate the diffractive pattern such that the first picture content is formed on the first diffuser and/or the second picture content is formed on the second diffuser. An optical system comprising at least one optical element having optical power is arranged so that the first and second diffusers have different object distances to the optical system.