专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2022074373A1 ILLUMINATION POWER CONTROL FOR A COMPUTER-GENERATED HOLOGRAM DISPLAY 审中-公开
公开(公告)号：WO2022074373A1
公开(公告)日：2022-04-14
申请号：PCT/GB2021/052566
申请日：2021-10-05
申请人： VIVIDQ LIMITED
发明人： DURRANT, Thomas James , SENANAYAKE, Sapumal Jaliya , GOLD, Julian , SPIESS, Alden Oliver , MILNE, Darran Francis , FIELDHOUSE, Christian Timothy , PRITCHARD, Indi , PECHHACKER, Roman Wolfgang , TASTEMUR, Omer Arda , KACZOROWSKI, Andrzej
IPC分类号： G03H1/02 , G03H1/08 , G03H1/22
摘要： A method for adjusting the apparent brightness of a computer-generated hologram display is disclosed. The method comprises: receiving source data representative of a scene to be displayed as a hologram; determining hologram data to display a computer-generated hologram representing the scene; determining a scene energy based on the source data; associating the scene energy with the hologram data; controlling a holographic display according to the hologram data and simultaneously controlling an output power of an illumination source of the holographic display according to the scene energy. A method for generating a computer-generated hologram data is also disclosed. The method comprises: receiving source data representative of a scene to be displayed as a hologram; determining hologram data to display a computer-generated hologram representing the scene; determining a scene energy based on the source data; and associating the scene energy with the hologram data. The scene energy may be for controlling an output power of an illumination source when displaying the computer-generated hologram data.

2. 发明申请

WO2023089181A1 DISPLAY SYSTEM 审中-公开
公开(公告)号：WO2023089181A1
公开(公告)日：2023-05-25
申请号：PCT/EP2022/082646
申请日：2022-11-21
申请人： VIVIDQ LIMITED
发明人： KACZOROWSKI, Andrzej , NEWMAN, Alfred James , SULLIVAN, Darius Martin
IPC分类号： G02B27/01
摘要： A display system comprising an image generating unit, an image replicating combined and an optical system. The image generating unit is configured to generate an image with depth information. The image replicating combiner comprises an input surface and an output surface, and is configured to generate a plurality of replications of an image incident on the input surface at output surface. The optical system is positioned in an optical path between the image generating unit and the input surface of image replicating combiner, and is arranged to transform a set of rays from the image generating unit into a plurality of sets of rays with respective different focal points, such that the plurality of sets of rays, when incident on the input surface, combine on extraction at the output surface to give each replication substantially the same focal point at a viewing position.

3. 发明申请

WO2020148521A1 HOLOGRAPHIC DISPLAY SYSTEM AND METHOD 审中-公开
公开(公告)号：WO2020148521A1
公开(公告)日：2020-07-23
申请号：PCT/GB2020/050061
申请日：2020-01-13
申请人： VIVIDQ LIMITED
发明人： KACZOROWSKI, Andrzej
IPC分类号： G03H1/08 , G03H1/22 , G03H1/32 , G03H1/26
摘要： There is provided a system and technique for generating holograms using standard image processing hardware with reduce computational complexity. In one aspect, there is provided a holographic image display system comprising a processor receiving image data at an input and producing output hologram data based on the image data, wherein the image data comprises three-dimensional image data that is separable into a plurality of two-dimensional image layers at different image planes, and wherein the processor is configured to: a) perform a space-frequency transform, such as a Fourier transform on each image layer to provide a transformed image layer, b) apply a focus factor to each transformed image layer, c) apply a pseudo-random phase factor to each transformed image layer, and d) sum the transformed image layers to form a holographic sub-frame, e) repeat steps (c) and (d) for a plurality of iterations, applying a different pseudo-random phase factor to the transformed image layers in each iteration to form a plurality of holographic sub-frames, the output hologram data comprising the plurality of holographic sub-frames; and f) drive a spatial light modulator with the holographic sub-frames in rapid temporal succession to generate a holographic image. By applying a pseudo-random phase factor to each image layer after it has been transformed, a large number of holographic sub-frames can be generated without the need to perform a Fourier transform for each sub-frame.

4. 发明申请

WO2023002221A1 HOLOGRAPHIC DISPLAYS AND METHODS 审中-公开
公开(公告)号：WO2023002221A1
公开(公告)日：2023-01-26
申请号：PCT/GB2022/051936
申请日：2022-07-22
申请人： VIVIDQ LIMITED
发明人： KACZOROWSKI, Andrzej , NEWMAN, Alfred James , FIELDHOUSE, Christian , PRITCHARD, Indi , HARRIS, Amy , SULLIVAN, Darius Martin
IPC分类号： G03H1/08
摘要： A method of generating a computer-generated hologram from a three-dimensional image comprising a plurality of two-dimensional image layers is provided. The method comprises generating hologram data for each layer of the image, and updating the hologram data of at least one layer of the image based on the hologram data of the other layers of the image.

5. 发明申请

WO2022008884A1 HOLOGRAPHIC DISPLAY SYSTEM AND METHOD 审中-公开
公开(公告)号：WO2022008884A1
公开(公告)日：2022-01-13
申请号：PCT/GB2021/051696
申请日：2021-07-05
申请人： VIVIDQ LIMITED
发明人： NEWMAN, Alfred James , DURRANT, Thomas James , KACZOROWSKI, Andrzej , MILNE, Darran Francis
IPC分类号： G03H1/02 , G03H1/22 , G02B3/00 , G02B3/06 , G02B3/10
摘要： A holographic display comprises: an illumination source which is at least partially coherent; a plurality of display elements positioned to receive light from the illumination source and spaced apart from each other, each display element comprising a group of at least two sub-elements; and a modulation system associated with each display element and configured to modulate at least a phase of each of the plurality of sub-elements.

6. 发明申请

WO2021151816A1 OPTICAL ASSEMBLY AND METHOD FOR REDUCING ZERO-ORDER LIGHT IN A HOLOGRAPHIC DISPLAY 审中-公开
公开(公告)号：WO2021151816A1
公开(公告)日：2021-08-05
申请号：PCT/EP2021/051566
申请日：2021-01-25
申请人： VIVIDQ LIMITED
发明人： NEWMAN, Alfred James , KACZOROWSKI, Andrzej
IPC分类号： G02B5/00 , G02B27/01
摘要： An optical assembly 1 is provided for use in holographic display of a replay image. The optical assembly may be of particular use is an augmented reality headset. The optical assembly includes a light-modulation element 12 arranged to be illuminated off-axis by a light beam. The light-modulation element 12 modulates the incident light to generate a replay image and generates a zero-order light beam. A focusing system 19 is arranged after the light-modulation element. A light remover 120 is positioned after the focussing system and is configured to remove the zero-order light beam from the light focussed by the focussing system 19. The focussing system 19 is configured to focus zero-order light from the light-modulation element 12 in a first plane different from a second plane which is the plane of focus of parallel light of the replay image. The light remover removes the zero-order light in the first plane.

7. 发明公开

EP4176320A1 HOLOGRAPHIC DISPLAY SYSTEM AND METHOD 审中-公开
公开(公告)号：EP4176320A1
公开(公告)日：2023-05-10
申请号：EP21752098.0
申请日：2021-07-05
申请人： VividQ Limited
发明人： NEWMAN, Alfred James , DURRANT, Thomas James , KACZOROWSKI, Andrzej , MILNE, Darran Francis
IPC分类号： G03H1/02 , G03H1/22 , G02B3/00 , G02B3/06 , G02B3/10

8. 发明公开

EP4099099A1 HOLOGRAPHIC DISPLAY SYSTEM AND METHOD 审中-实审
公开(公告)号：EP4099099A1
公开(公告)日：2022-12-07
申请号：EP22182003.8
申请日：2020-01-13
申请人： VividQ Limited
发明人： KACZOROWSKI, Andrzej
IPC分类号： G03H1/08 , G03H1/22 , G03H1/32 , G03H1/26
摘要： There is provided a system and technique for generating holograms using standard image processing hardware with reduced computational complexity. In one aspect, there is provided a holographic image display system comprising a processor receiving image data at an input and producing output hologram data based on the image data, wherein the image data comprises three-dimensional image data that is separable into a plurality of two-dimensional image layers at different image planes, and wherein the processor is configured to:
a) perform a space-frequency transform on each image layer to provide a transformed image layer,
b) apply a focus factor to each transformed image layer,
c) apply a pseudo-random phase factor to each transformed image layer, and
d) sum the transformed image layers to form a holographic sub-frame,
e) repeat steps (c) and (d) for a plurality of iterations, applying a different pseudo-random phase factor to the transformed image layers in each iteration to form a plurality of holographic sub-frames, the output hologram data comprising the plurality of holographic sub-frames; and
f) drive a spatial light modulator with the holographic sub-frames in rapid temporal succession to generate a holographic image.

9. 发明公开

EP4097515A1 OPTICAL ASSEMBLY AND METHOD FOR REDUCING ZERO-ORDER LIGHT IN A HOLOGRAPHIC DISPLAY 有权
公开(公告)号：EP4097515A1
公开(公告)日：2022-12-07
申请号：EP21701793.8
申请日：2021-01-25
申请人： Vividq Limited
发明人： NEWMAN, Alfred James , KACZOROWSKI, Andrzej
IPC分类号： G02B5/00 , G02B27/01

10. 发明公开

EP3894962A1 HOLOGRAPHIC DISPLAY SYSTEM AND METHOD 有权转让
公开(公告)号：EP3894962A1
公开(公告)日：2021-10-20
申请号：EP20701113.1
申请日：2020-01-13
申请人： Vividq Limited
发明人： KACZOROWSKI, Andrzej
IPC分类号： G03H1/08 , G03H1/22 , G03H1/32 , G03H1/26

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式