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公开(公告)号：US20170082975A1
公开(公告)日：2017-03-23
申请号：US15274108
申请日：2016-09-23
Inventor： Alain GLIERE , Salim BOUTAMI , Alexei TCHELNOKOV , Ivan VOZNYUK , Cedric ALLIER
CPC classification number: G03H1/041 , G01N15/1463 , G01N21/41 , G01N21/554 , G01N21/774 , G01N2015/1006 , G01N2021/7776 , G03H1/0005 , G03H1/0443 , G03H1/0465 , G03H2001/005 , G03H2001/0212 , G03H2001/0441 , G03H2001/0447 , G03H2001/0452 , G03H2001/2223 , G03H2222/20 , G03H2223/13 , G03H2223/23 , G03H2223/24 , G03H2223/50
Abstract: The invention describes a device allowing the observation of a sample, comprising particles, for example biological particles, by lensless imaging. The sample is disposed against a substrate, the substrate being interposed between a light source and an image sensor. The substrate comprises at least one thin film, extending across a thin film plane, structured so as to form a diffraction grating, designed to confine a part of a light wave emitted by the light source, in a plane parallel to said thin film plane. The device does not comprise magnification optics between the substrate and the image sensor.
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公开(公告)号：US20240045378A1
公开(公告)日：2024-02-08
申请号：US18351218
申请日：2023-07-12
Applicant: Envisics Ltd
Inventor： Timothy Smeeton , Alexander Cole , Rakesh Maharjan
CPC classification number: G03H1/2645 , G02B27/0103 , G03H2223/16 , G03H2223/50
Abstract: A projection assembly is described. The projection assembly comprises a first holographic projection channel configured to output a first holographic light field. The projection assembly further comprises a second holographic projection channel configured to output a second holographic light field. The first holographic projection channel and the second holographic projection channel are arranged such that the first holographic light field is adjoined with the second holographic light field in order to form a continuous field of view.
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3.发明申请公开(公告)号：US20170146953A1
公开(公告)日：2017-05-25
申请号：US15113949
申请日：2016-01-14
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Naifu Wu , Bei Niu , Tao Wang , Wei Wei , Kun Wu , Chia Chiang Lin , Chunmiao Zhou
IPC: G03H1/22
CPC classification number: G03H1/2294 , G03H2001/0224 , G03H2001/0858 , G03H2001/2297 , G03H2223/19 , G03H2223/50 , G03H2225/24 , G03H2227/03
Abstract: A spatial light modulator and a method for displaying a computer generated hologram are disclosed. The spatial light modulator includes a plurality of MEMS units arranged in an array, each of the MEMS units corresponds to a pixel of a computer generated hologram and includes a sensing device, a light shielding portion and a driving device. The sensing device is configured for receiving position information that is obtained through Roman encoding a pixel corresponding to an MEMS unit including the sensing device and the position information is transmitted to the driving device by the sensing device. The driving device is configured for controlling the light shielding portion to move to a position corresponding to the position information in response to the received position information of the light shielding portion when the present frame is displayed.
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公开(公告)号：US20170082976A1
公开(公告)日：2017-03-23
申请号：US15365116
申请日：2016-11-30
Applicant: SEEREAL TECHNOLOGIES GMBH
Inventor： Armin SCHWERDTNER
CPC classification number: G03H1/2205 , G02B5/1876 , G02B27/0093 , G02B27/0172 , G02B2027/0174 , G03H1/2202 , G03H1/2249 , G03H1/2294 , G03H2001/2207 , G03H2001/221 , G03H2001/2236 , G03H2001/2239 , G03H2001/2242 , G03H2001/226 , G03H2001/2271 , G03H2210/30 , G03H2222/54 , G03H2223/18 , G03H2223/19 , G03H2223/24 , G03H2223/50 , G03H2225/52 , G03H2225/61 , G03H2226/05
Abstract: A holographic reconstruction of scenes includes a light modulator, an imaging system with at least two imaging means and an illumination device with sufficient coherent light for illumination of hologram coded in the light modulator. The at least two imaging means are arranged such that a first imaging means is provided for the magnified imaging of the light modulator on a second imaging means. The second imaging means is provided for imaging of a plane of a spatial frequency spectrum of the light modulator in a viewing plane at least one viewing window. The viewing window corresponds to a diffraction order of the spatial frequency spectrum.
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5.发明公开公开(公告)号：US20240152094A1
公开(公告)日：2024-05-09
申请号：US18353777
申请日：2023-07-17
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Alastair John Grant , Milan Momcilo Popovich , Ratson Morad , Sean Michael Williams
CPC classification number: G03H1/0408 , G02B6/4204 , G03H1/0248 , G03H1/0465 , G03H2001/0434 , G03H2001/0439 , G03H1/30 , G03H2222/34 , G03H2223/16 , G03H2223/24 , G03H2223/50
Abstract: Holographic volume gratings in waveguide cells can be recorded using many different methods and systems in accordance with various embodiments of the invention. One embodiment includes a holographic recording system including at least one laser source configured to emit recording beams and a movable platform configured to move between a first position and a second position, wherein when the movable platform is in the first position, the at least one laser source is configured to emit a first set of one or more recording beams toward a first set of one or more stations and when the movable platform is in the second position, the at least one laser source is configured to emit a second set of one or more recording beams toward a second set of one or more stations.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11703799B2
公开(公告)日：2023-07-18
申请号：US16935048
申请日：2020-07-21
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Alastair John Grant , Milan Momcilo Popovich , Ratson Morad , Sean Michael Williams
CPC classification number: G03H1/0408 , G02B6/4204 , G03H1/0248 , G03H1/0465 , G03H1/30 , G03H2001/0434 , G03H2001/0439 , G03H2222/34 , G03H2223/16 , G03H2223/24 , G03H2223/50
Abstract: Holographic volume gratings in waveguide cells can be recorded using many different methods and systems in accordance with various embodiments of the invention. One embodiment includes a holographic recording system including at least one laser source configured to emit recording beams and a movable platform configured to move between a first position and a second position, wherein when the movable platform is in the first position, the at least one laser source is configured to emit a first set of one or more recording beams toward a first set of one or more stations and when the movable platform is in the second position, the at least one laser source is configured to emit a second set of one or more recording beams toward a second set of one or more stations.
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公开(公告)号：US20170248825A1
公开(公告)日：2017-08-31
申请号：US15257581
申请日：2016-09-06
Applicant: Microsoft Technology Licensing, LLC
Inventor： Andreas Georgiou , Joel S. Kollin
IPC: G02F1/1343 , G02F1/13363 , G02F1/1333 , G02F1/1335
CPC classification number: G02F1/134309 , B82Y30/00 , G02B5/0816 , G02F1/133345 , G02F1/133504 , G02F1/133509 , G02F1/133553 , G02F1/13363 , G02F1/13439 , G02F1/292 , G02F2001/13356 , G02F2001/133638 , G02F2201/121 , G02F2201/123 , G02F2201/305 , G02F2202/36 , G02F2202/42 , G02F2203/12 , G02F2413/01 , G03H1/02 , G03H1/2202 , G03H2001/0224 , G03H2223/20 , G03H2223/24 , G03H2223/50 , G03H2223/53 , G03H2225/32 , G03H2225/52 , G03H2225/55 , H01L51/0048 , H01L51/102
Abstract: Examples are disclosed relating to reducing orders of diffraction patterns in phase modulating devices. An example phase modulating device includes a phase modulating layer having first and second opposing sides, a common electrode adjacent the first side of the phase modulating layer, a plurality of pixel electrodes adjacent the second side of the phase modulating layer, and blurring material disposed between the phase modulating layer and the pixel electrodes. In the example phase modulating device, the blurring material is configured to smooth phase transitions in the phase modulating layer between localized areas associated with the pixel electrodes, the pixel electrodes have a pixel pitch by which the pixel electrodes are distributed along the phase modulating layer, and the pixel electrodes are separated from one another by an inter-pixel gap, where the ratio of the inter-pixel gap to the pixel pitch is between 0.50 and 1.0.
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公开(公告)号：US20240160150A1
公开(公告)日：2024-05-16
申请号：US18326906
申请日：2023-05-31
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Alastair John Grant , Milan Momcilo Momcilo , Ratson Morad
CPC classification number: G03H1/041 , G03H1/0248 , G03H1/0465 , G03H2223/23 , G03H2223/25 , G03H2223/50 , G03H2225/22 , G03H2227/03 , G03H2227/05
Abstract: Systems and methods for recording holographic gratings in accordance with various embodiments of the invention are illustrated. One embodiment includes a holographic recording system including a first movable platform configured to support a first plurality of waveguide cells for exposure, at least one master grating, and at least one laser source configured to provide a set of recording beams by directing light towards the at least one master grating, wherein the first movable platform is translatable in predefined steps along at least one of two orthogonal directions, and wherein at each the predefined step at least one waveguide cell is positioned to be illuminated by at least one recording beam within the set of recording beams.
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公开(公告)号：US11953856B2
公开(公告)日：2024-04-09
申请号：US17165548
申请日：2021-02-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hoon Song , Dukho Lee , Jong-Young Hong , Hongseok Lee , Chilsung Choi
CPC classification number: G03H1/2294 , G03H1/2205 , G06T7/50 , G03H2223/23 , G03H2223/50 , G06F3/013
Abstract: Provided is a holographic display apparatus including: a spatial light modulator that modulates a wavefront of a reference beam to form a hologram image; an optical element arranged to change a position of a viewing window of the hologram image off-axis by a first angle; and an image processor that generates hologram data according to the position of the viewing window of the hologram image and a hologram image to be reproduced, and provides the hologram data to the spatial light modulator. The hologram image formed by the spatial light modulator is viewable from a side of the spatial light modulator.
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公开(公告)号：US20190204784A1
公开(公告)日：2019-07-04
申请号：US16224542
申请日：2018-12-18
Inventor： Keehoon HONG , Kwan-Jung OH , Hyon-Gon CHOO , Yongjun LIM
IPC: G03H1/26
CPC classification number: G03H1/2645 , G03H2223/15 , G03H2223/50 , G03H2225/12
Abstract: In the present invention, by providing an apparatus for displaying a hologram including: a beam source configured to output a plurality of beams, a spatial light modulator configured to include a plurality of SLM (spatial light modulator) regions, display a hologram, and diffract the plurality of beams; a plurality of front lenses each corresponding to the plurality of SLM regions, and configured to refract the plurality of beams diffracted from each of the plurality of SLM regions; a plurality of filters each corresponding to the plurality of SLM regions, and configured to filter a part of the plurality of refracted beams; and a plurality of back lenses each corresponding to the plurality of SLM regions, and configured to display an interference image corresponding to the hologram using the filtered part beam, the beam path of the hologram displaying apparatus can be drastically reduced, and an entire size of the hologram displaying apparatus can be reduced, so that it is possible to down-size the digital hologram display system.
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