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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2602. Отображено 100.
01-03-2012 дата публикации

Digital hologram image display device

Номер: US20120050459A1
Автор: Guensik Lee, Minsung YOON
Принадлежит: LG Display Co Ltd

The present disclosure relates to a digital hologram display device in which the 0th diffraction component is removed for optimizing the reproduction and replay of three-dimensional hologram video data. The present disclosure suggests a digital hologram image display device including a pattern generator generating holography interference patterns; a spatial light modulator receiving the holography interference patterns from the pattern generator and representing the holography interference patterns; a light source positioning at one side of the spatial light modulator and illuminating a reference beam to the spatial light modulator; an optical device controlling the reference beam to be collimated onto the entire surface of the spatial light modulator; and a diffusion sheet disposed between the light source and the spatial light modulator.

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Номер записи: 1
12-04-2012 дата публикации

Apparatus and method for holography 3-dimensional display

Номер: US20120086994A1
Автор: Hong-seok Lee, Hoon Song, Jung-mok Bae, Kyu-hwan Choi, Seung-hoon Han, Yoon-sun Choi
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus includes a recording light source configured to emit recording beams, an electrically addressable spatial light modulator (EASLM) configured to time sequentially modulate the recording beams emitted from the recording light source according to hologram information corresponding to a 3-dimensional image spatially divided into a plurality of portions, an optically addressable spatial light modulator (OASLM) configured to include a plurality of regions corresponding to the plurality of the divided portions of the 3-dimensional image and images on a region corresponding to the portions using the modulated recording beams to form a hologram, a scanning optical unit configured to reproduce the hologram formed by the recording beams serially modulated by the EASLM on a reduced scale and transmit the hologram to the regions of the OASLM corresponding to the portions, and a reproducing light source configured to produce a surface light and emit the surface light to the OASLM.

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Номер записи: 2
03-05-2012 дата публикации

Holographic Apparatus and Method

Номер: US20120105580A1
Автор: Adrian James Cable, Edward Buckley
Принадлежит: Cambridge University Technical Services Ltd CUTS

The invention relates to a method of and apparatus for displaying a holographically generated video image having plural video frames. For each period there is provided a respective sequential plurality of holograms. The holograms of the plural video frames are displayed for viewing the replay field thereof, and the noise variance of each frame is perceived as attenuated by averaging across said plurality of holograms.

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Номер записи: 3
17-05-2012 дата публикации

Device and method of marking a set of products

Номер: US20120120465A1
Автор: Alain-Marcel Rey, Christophe Martinez
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

The invention relates to a method of marking a batch of products, consisting in forming a synthetic hologram of an image ( 20 ) on each product, said hologram being furthermore encoded using a phase key, the image comprising a first portion ( 22 ) common to the various products of the batch and a second portion ( 24 ) that differs from one product to another.

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Номер записи: 4
12-07-2012 дата публикации

Optical reader module and optical reader

Номер: US20120176655A1
Автор: Akira Shirakura
Принадлежит: Sony Corp, Sony DADC Corp

An optical reader module includes a first illumination light source that emits reproducing illumination light to an image-capture target containing a hologram in which information reproduced in a predetermined angle area when illuminated from a predetermined angle is recorded, thereby reproducing the information recorded in the hologram; an image-capturing device that captures an image of the information reproduced from the hologram; and a first light-projecting unit that projects first-optical-guide-forming light on the image-capture target. A first optical guide projected on the image-capture target takes a predetermined shape when the emission angle of the reproducing illumination light to the hologram is equal to the predetermined angle. An observer of the image-capture target recognizes misalignment between the emission angle of the reproducing illumination light to the hologram and the predetermined angle, based on distortion of the first optical guide projected on the image-capture target from the predetermined shape.

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Номер записи: 5
15-11-2012 дата публикации

Holographic sensor

Номер: US20120288785A1
Автор: Hosam Sherif, Izabela Naydenova, Raghavendra Jallapuram, Suzanne Martin, Vincent Toal
Принадлежит: Dublin Institute of Technology

A sensor device comprising a holographic element comprises a grating or hologram recorded in a holographic recording medium wherein at least one physical and/or chemical and/or optical characteristic of the holographic element or the image produced by it varies as a result of variation in relative humidity or moisture content in the air surrounding the element. Also provided is an acrylamide-based photopolymer and an acrylamide-based reflection hologram.

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Номер записи: 6
21-02-2013 дата публикации

Three Dimensional Display Compute System

Номер: US20130044105A1
Автор: Jan D. Garmany, Martin A. Hunt, Michael B. Doerr, Michael B. Solka
Принадлежит: Individual

System and method for video holographic display. Information is received regarding a 2D hogel array with multiple hogel apertures, specifying number, size, and/or spacing of the hogel apertures. Information regarding a 3D scene is received, including a scaling factor mapping the 3D scene to a 3D display volume. Due to gradual variation of radiation patterns from hogel to hogel, a full set of color radiation intensity patterns for the entire hogel array may be generated by interpolating the color radiation intensity patterns from a sparse subset of the hogels without having to compute all of the patterns. The full set of color radiation intensity patterns may then be used to holographically display the 3D scene.

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Номер записи: 7
25-04-2013 дата публикации

Display device

Номер: US20130100511A1
Автор: Kakuya Yamamoto, Keiji Sugiyama, Kenichi Kasazumi
Принадлежит: Panasonic Corp

A display device ( 1 ) includes a light source ( 101 ) which outputs laser light, an illumination optical system ( 102 ) which emits the laser light as illumination light, a spatial modulation element ( 103 ) which diffracts the illumination light by displaying a diffraction pattern, and a wearing section ( 111 ) for wearing on a user's head. A positional relationship between the spatial modulation element ( 103 ) and an expected eye position ( 191 a ), which is expected to be a position of an eye ( 190 ) of the user, is fixed in a state where the wearing section ( 111 ) is worn on the user's head. The spatial modulation element ( 103 ) displays, as the diffraction pattern, a diffraction pattern by which a fictive image is displayed to the user due to diffracted light, which has been diffracted by the diffraction pattern, reaching the expected eye position ( 191 a ).

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Номер записи: 8
25-04-2013 дата публикации

3-dimensional holographic image displaying apparatus

Номер: US20130100513A1
Автор: Dong-Kyung Nam, Hoon Song, Jung-mok Bae, Kyu-hwan Choi, Seung-hoon Han
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A 3-dimensional (3D) holographic image displaying apparatus is provided. The apparatus includes a hologram reproducer configured to generate surface plasmons in response to incident light and reproduce a 3D image by diffracting the generated surface plasmons by a hologram, and a surface light source unit including a light source and a light guide plate, the light guide plate being configured to allow incident light from the light source to enter into the light guide plate, internally reflect the allowed light, and output the internally reflected light through a light-output surface, the surface light source unit being configured to implement colors by adjusting an angle of the light incident to the hologram reproducer so that the outputted light through the light-output surface is incident to the hologram reproducer at a surface plasmon-forming angle for each wavelength to generate the surface plasmons corresponding to a plurality of color beams.

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Номер записи: 9
13-06-2013 дата публикации

Holographic display

Номер: US20130148179A1
Автор: Ilya Blayvas, Ron Fridental
Принадлежит: Broadcom Corp

Disclosed are various embodiments of a holographic display device that may reproduce dynamic color holograms and holographic video. A holographic display device includes a processor, a memory, a display screen, and one or more monochromatic light sources. The memory stores a holographic interference pattern that encodes a three-dimensional scene. The display screen is configured by the processor to render the holographic interference pattern. The monochromatic light sources are configured to illuminate the display screen so as to reconstruct a wavefront reflected by the three-dimensional scene.

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Номер записи: 10
01-08-2013 дата публикации

Image processing apparatus and method

Номер: US20130195348A1
Автор: Dong Kyung Nam, Ho Cheon Wey, Seok Lee
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An image processing apparatus is provided. The image processing apparatus may include a determining unit configured to determine at least one pixel having a pixel value difference between a first image and a second image lower than a critical value, among a plurality of input frame images to compute a hologram pattern, and a computing unit configured to compute a hologram pattern of the first image and to compute a hologram pattern of the second image using a computation result for the at least one pixel of the first image.

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Номер записи: 11
15-08-2013 дата публикации

Method for processing interaction between user and hologram using volumetric data type object wave field

Номер: US20130208010A1
Автор: Seung Taik Oh, Wook Ho SON
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Disclosed is a method for processing interaction between a user and hologram using a volumetric data type object wave field. A method for processing interaction between a user and hologram for user's action using a volumetric data type object wave field includes: capturing user action on the holographic image of the object and solving collision between user and object; computing the updated position and rotation of the object by time integration of rigid body equation in collision; calculating the relative position and rotation of the hologram plane with respect to local object coordinates; transforming the hologram in the pre-computed volumetric object wave field grid according to the relative position and rotation of the hologram plane in local object coordinates and reading the object wave fields at all the pixels of the transformed hologram plane in order to generate a new hologram for the transformed object caused by user action.

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Номер записи: 12
26-09-2013 дата публикации

Analytic method for computing video holograms in real time

Номер: US20130250049A1
Автор: Alexander Schwerdtner
Принадлежит: SeeReal Technologies SA

An analytical method for computing a video hologram for a holographic reproduction device having at least one light modulation means is disclosed, wherein a scene split into object points is encoded as a whole hologram and can be seen as a reconstruction from a visibility region, located within a periodicity interval of the reconstruction. The visibility region, together with each object point of the scene to be reconstructed, defines a subhologram and the whole hologram is generated from a superposition of subholograms, wherein the complex hologram values of a subhologram are determined from the wave front of the respective object point to be reconstructed in a modulator region of the light modulation means, by calculating and evaluating the transmission or modulation functions of an imaging element formed in the modulator region. The object point to be reconstructed is located in the focal point of the imaging element.

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Номер записи: 13
05-12-2013 дата публикации

Method for concealing a synthetic hologram in a binary image

Номер: US20130322680A1
Автор: Christophe Martinez
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

The invention relates to a synthetic hologram ( 64 A) comprising first elementary cells wherein first openings are respectively defined, said hologram being integrated into a first portion of a binary motif ( 60 ), said binary motif comprising at least one second portion wherein second elementary cells comprising second openings ( 66 ) are defined, said second openings having an average size equal to the average size of the first openings, with a 5% margin, and a random phase shift.

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Номер записи: 14
02-01-2014 дата публикации

Input device with three-dimensional image display

Номер: US20140002366A1
Автор: Finn Pedersen, Jesper GLÜCKSTAD
Принадлежит: Danmarks Tekniskie Universitet

The present invention relates to an input device ( 2 ), such as a keyboard, comprising a plurality of activation parts ( 4 ) for depression, at least one registration part ( 6 ) for individual registration of depression of activation parts, and at least one image displaying part ( 8 ), where depression of the activation parts ( 4 ) provides tactile feedback to a user. The at least one image displaying part ( 8 ) is configured for displaying a label of an activation part ( 4 ) as a three-dimensional label.

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Номер записи: 15
09-01-2014 дата публикации

Method for single-write holographic imaging

Номер: US20140009806A1
Автор: John Hazen, Larry Hoague
Принадлежит: Hazen Paper Co

A method for single-write holographic imaging involves determining a layout of a plurality of holographic images on a substrate, the plurality of holographic images including at least a first holographic image having a first parameter set and a second holographic image having a second parameter set, inputting the parameter sets into a database and controlling an imaging apparatus to image the first and second holographic images on the substrate in a single session to create an integrated holographic pattern.

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Номер записи: 16
27-03-2014 дата публикации

Method and Device for 3-D Display Based on Random Constructive Interference

Номер: US20140085427A1
Автор: Zhiyang Li
Принадлежит: Individual

The present invention relates to a method and an apparatus for 3-D display based on random constructive interference. It produces a number of discrete secondary light sources by using an amplitude-phase-modulator-array, which helps to create 3-D images by means of constructive interference. Next it employs a random-secondary-light-source-generator-array to shift the position of each secondary light source to a random place, eliminating multiple images due to high order diffraction. It could be constructed with low resolution liquid crystal screens to realize large size real-time color 3-D display, which could widely be applied to 3-D computer or TV screens, 3-D human-machine interaction, machine vision, and so on.

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Номер записи: 17
04-01-2018 дата публикации

Method and system for monitoring a building structure

Номер: US20180003499A1
Автор: Eugenio PUGLIESE, Giorgio LACANNA, Massimiliano LOCATELLI, Pasquale POGGI
Принадлежит: Consiglio Nazionale delle Richerche CNR, UNIVERSITA DEGLI STUDI DI FIRENZE

A system for monitoring a building structure is described. The system comprises a laser source which emits an infrared radiation and an interferometric arrangement which divides the radiation into an object beam and a reference beam. The object beam irradiates the building structure and is scattered by it, while the reference beam interferes with the scattered object beam so as to create a hologram of the building. The system also comprises a sensor which detects a sequence of holograms and a processing unit which reconstructs the evolution in time of deformations or displacements of the building by numerically processing the sequence of holograms. The system—being based on digital holography—offers various advantages compared to known monitoring techniques, for example techniques which make use of seismometers (possibility of remote monitoring, substantial space-time continuity of the monitoring, capacity for detecting a wider range of deformations and displacements).

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Номер записи: 18
04-01-2018 дата публикации

Near-to-eye display device with spatial light modulator and pupil tracker

Номер: US20180003981A1
Автор: Hakan Urey
Принадлежит: Cy Vision Inc

A near-to-eye display device includes a spatial light modulator, a rotatable reflective optical element and a pupil-tracking device. The pupil-tracking device tracks the eye pupil position of the user. Based on the data provided by the pupil-tracking device, the reflective optical element is rotated such that the light modulated by the spatial light modulator is directed towards the user's eye pupil.

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Номер записи: 19
04-01-2018 дата публикации

Method and Master for Producing a Volume Hologram

Номер: US20180004156A1
Автор: Achim Hansen, Andreas Schilling, Norbert Lutz, Wayne Robert Tompkin
Принадлежит: Leonhard Kurz Stiftung and Co KG, OVD KINEGRAM AG

A method for producing a volume hologram with at least one first area in a first color and at least one second area in a second color includes, providing a volume hologram layer made of a photopolymer; arranging a master with a surface structure on the volume hologram layer; exposing the master using coherent light, wherein light which is incident on at least one first partial area of the surface of the master is diffracted or reflected in the direction of the at least one first area of the volume hologram layer and light which is incident on at least one second partial area of the surface of the master is diffracted or reflected in the direction of the at least one second area of the volume hologram, and wherein the light diffracted or reflected by the first and second partial areas differs in at least one optical property.

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Номер записи: 20
03-01-2019 дата публикации

Dynamic Holography Printing Device

Номер: US20190004476A1
Автор: Brian Mullins, Jamieson Christmas
Принадлежит: Dualitas Ltd

A printing device ( 106 ) includes a laser source ( 110 ) and a LCOS-SLM (Liquid Crystal on Silicon Spatial Light (Modulator, 112 ). The printing device generates a laser control signal and a LCOS-SLM control signal. The laser source generates a plurality of incident laser beams based on the laser control signal. The LCOS-SLM receives the plurality of incident laser beams, modulates the plurality of incident laser beams based on the LCOS-SLM control signal, and generates a plurality of holographic wavefronts ( 214, 216 ). Each holographic wavefront forms at least one focal point. The printing device cures a surface layer of a target material ( 206 ) at interference points of focal points of the plurality of holographic wavefronts. The cured surface layer of the target material forms a two-dimensional printed content.

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Номер записи: 21
08-01-2015 дата публикации

Lighting Device for Headlights with a Phase Modulator

Номер: US20150009695A1
Автор: Dackson Masiyano, Jamieson Christmas, Mikael Collin
Принадлежит: Two Trees Photonics Ltd

There is provided a lighting device arranged to produce a controllable light beam for illuminating a scene. The device comprises an addressable spatial light modulator arranged to provide a selectable phase delay distribution to a beam of incident light. The device further comprises Fourier optics arranged to receive phase-modulated light from the spatial light modulator and form a light distribution. The device further comprises projection optics arranged to project the light distribution to form a pattern of illumination as said controllable light beam.

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Номер записи: 22
12-01-2017 дата публикации

METHODS AND SYSTEMS FOR GENERATING A THREE-DIMENSIONAL HOLOGRAPHIC MASK

Номер: US20170010585A1
Автор: Menon Rajesh, WANG Peng
Принадлежит:

A system for surface patterning using a three dimensional holographic mask includes a light source configured to emit a light beam toward the holographic mask. The holographic mask can be formed as a topographical pattern on a transparent mask substrate. A semiconductor substrate can be positioned on an opposite site of the holographic mask as the light source and can be spaced apart from the holographic mask. The system can also include a base for supporting the semiconductor substrate. 1. An iterative pixelated perturbation method of generating a three dimensional holographic mask based on a predetermined three dimensional pattern , comprising:providing a starting pattern for the holographic mask;computing images at multiple planes parallel to the holographic mask using a processor;computing an image metric representing a combination of diffraction efficiency of the holographic mask and fidelity of a resulting image compared with the predetermined pattern for the images at the multiple planes using the processor;perturbing an optic height of a first pixel in the starting pattern to create an intermediate pattern;computing the resulting intermediate images and computing an intermediate metric for the intermediate pattern; anddetermining whether the intermediate metric for the intermediate pattern is an improvement over the metric for the starting pattern, wherein the holographic mask is formed as a topographical pattern of the predetermined three dimensional pattern on a transparent mask substrate and includes multiple discrete levels at defined elevations.2. The method of claim 1 , wherein the image metric includes at least one of diffraction efficiency claim 1 , image fidelity claim 1 , exposure latitude claim 1 , line-edge roughness claim 1 , manufacturability claim 1 , normalized inverse image slope claim 1 , robustness claim 1 , and throughput.3. The method of claim 2 , wherein the image metric includes diffraction efficiency and image fidelity.4. The method ...

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Номер записи: 23
14-01-2021 дата публикации

Quantum simulator and quantum simulation method

Номер: US20210011430A1
Автор: Haruyoshi Toyoda, Hiroto Sakai, Kenji Ohmori, Nobuyuki Takei, Taro Ando, Tomoko HYODO, Yoshiyuki Ohtake, Yuu Takiguchi
Принадлежит: Hamamatsu Photonics KK, Inter University Research Institute Corp National Institute of Natural Sciences

A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modulator based on a two-dimensional pseudo random number pattern.

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Номер записи: 24
14-01-2021 дата публикации

METHODS AND APPARATUS FOR ANGULAR AND SPATIAL MODULATION OF LIGHT

Номер: US20210011431A1
Автор: Chen Guanghao, Hellman Brandon, TAKASHIMA Yuzuru
Принадлежит: Arizona Board of Regents on Behalf of the University of Arizona

A light projection system comprising a light modulator that comprises a plurality of pixels each capable of selectively directing a corresponding modulatable amount of light, and a processor coupled to the light modulator to control the amount of light output from each of the plurality of pixels. The processor is configured to control the light modulator to form a computer generated hologram (CGH) wavefront from the light modulator corresponding to an image to be produced in the far field. The processor is also configured to control the light modulator to selectively direct the CGH wavefront. The light modulator may comprise an angular light modulator (ALM) comprising the plurality of pixels, each of the plurality of pixels having an OFF state and an ON state, the ALM arranged to direct the amounts of light in the direction as the pixels transition between the ON state and the OFF state. 1. A light projection system , comprising:a light modulator comprising a plurality of pixels each capable of selectively directing a corresponding modulatable amount of light; anda processor coupled to the light modulator to control the amount of light that is output from each of the plurality of pixels, the processor configured to control the light modulator to form a computer generated hologram (CGH) wavefront from the light modulator which corresponds to an image to be produced in a far field, and to control the light modulator to selectively direct the CGH wavefront in a direction.2. The system of claim 1 , further comprising a light source comprising a laser or an LED adapted to project a beam of light onto the light modulator to form the modulatable amounts of light.3. The system of claim 1 , wherein the light modulator comprises an angular light modulator (ALM) comprising the plurality of pixels claim 1 , each of the plurality of pixels having an OFF state and an ON state claim 1 , the ALM arranged to direct the amounts of light in the direction as the pixels transition ...

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Номер записи: 25
10-01-2019 дата публикации

HOLOGRAPHIC DISPLAY PANEL, HOLOGRAPHIC DISPLAY DEVICE AND DISPLAY METHOD THEREFOR

Номер: US20190011881A1
Автор: CHEN Xiaochuan, Dong Xue, Gu Xin, Guan Feng, Tan Jifeng, Wang Meili, Wang Wei
Принадлежит:

A holographic display panel comprises a plurality of display units, each display unit comprises at least two adjacent pixels, each pixel comprises: a plurality of sub-pixels; and a plurality of phase plates. Diffractive angles of light coming out of the phase plates corresponding to the sub-pixels in a same pixel are the same, a diffractive angle of first light coming out of the phase plates corresponding to a first pixel in one of the display units is different from a diffractive angle of second light coming out of the phase plates corresponding to a second pixel that is different from the first pixel but in the same display unit, and a reverse extension line of the first light and a reverse extension line of the second light intersect at an image plane position. 1. A holographic display panel , comprising a plurality of display units , each of the plurality of display units comprising:at least two adjacent pixels each comprising a plurality of sub-pixels; anda plurality of phase plates, each sub-pixel of the plurality of sub-pixels corresponding to one of the plurality of phase plates in a light exit direction of the sub-pixel, the plurality of phase plates being configured to control diffractive angles of light coming out of the plurality of phase plates,wherein diffractive angles of light coming out of the phase plates corresponding to the sub-pixels in one same pixel are the same, and a diffractive angle of first light coming out of the phase plates corresponding to a first pixel in one of the plurality of display units is different from a diffractive angle of second light coming out of the phase plates corresponding to a second pixel that is different from the first pixel and is in the same display unit as the first pixel, and a reverse extension line of the first light and a reverse extension line of the second light intersect at an image plane position.2. The holographic display panel according to claim 1 , wherein the plurality of display units are divided ...

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Номер записи: 26
10-01-2019 дата публикации

Holographic Display Device And Method For Controlling The Same

Номер: US20190011884A1
Автор: Yuxin Zhang
Принадлежит: BOE Technology Group Co Ltd

A holographic display device and a method for controlling the same are disclosed. The holographic display device includes a light source, a spatial light modulator, an adjustable light directing device and a direction controller. The modulator is arranged at a light exit side of the light source and modulates a reading light and to emit an output light; the controller for setting an optical path of the output light depending on an observation position and outputting a control signal to the light directing device depending on the optical path is connected to the light directing device, the optical path being matched with the observation position; the light directing device is arranged on an light exit side of the modulator and adjusts a direction of the output light of the modulator in response to the control signal to direct the output light to the observation position along the optical path.

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Номер записи: 27
18-01-2018 дата публикации

Multi-beam resin curing system and method for whole-volume additive manufacturing

Номер: US20180015672A1
Автор: Allison E. Browar, Brett Kelly, Christopher M. Spadaccini, Johannes HENRIKSSON, Maxim Shusteff, Nicholas Fang, Robert Matthew Panas
Принадлежит: Lawrence Livermore National Security LLC

A multi-beam volumetric resin curing system and method for whole-volume additive manufacturing of an object includes a bath containing a photosensitive resin, a light source for producing a light beam, and a spatial light modulator which produces a phase- or intensity-modulated light beam by impressing a phase profile or intensity profile of an image onto a light beam received from the light source. The system and method also include projection optics which then produces multiple sub-image beams from the modulated light beam which are projected to intersect each other in the photosensitive resin to cure select volumetric regions of the resin in a whole-volume three-dimensional pattern representing the object.

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Номер записи: 28
19-01-2017 дата публикации

OPTICAL SYSTEM COMPRISING A SPATIAL LIGHT MODULATOR

Номер: US20170017076A1
Автор: Emiliani Valentina, Guillon Marc, Papagiakoumou Eirini
Принадлежит:

The invention concerns an optical system () comprising: 2301718. The optical system according to claim 1 , wherein for a same power of the unmodulated “zero order” part in the replay volume claim 1 , the perturbing aberrant optical element () decreases by a factor ten or more claim 1 , a maximum intensity of the unmodulated “zero order” part of the modulated light beam () in the replay volume ().3301217. The optical system according to one of to claim 1 , wherein the perturbing aberrant optical element () is configured for spatially modulating a phase of the incident light beam () and/or the modulated light beam ().430. The optical system according to claim 3 , wherein the aberrations introduced by the perturbing aberrant optical element () have spatial frequencies that are less than or equal to 1/(2a) claim 3 , where a is a period of the array of controllable elements.513. The optical system according to one of to claim 3 , wherein the spatial light modulator () is a spatial phase modulator.6301217. The optical system according to one of to claim 3 , wherein the perturbing aberrant optical element () comprises a lens having a cylindrical surface claim 3 , for spreading the incident light beam () and/or the modulated light beam () according to a spreading direction.7301217. The optical system according to one of to claim 3 , wherein the perturbing aberrant optical element () comprises a first lens having a first cylindrical surface and a second lens having a second cylindrical surface claim 3 , for spreading the incident light beam () and/or the modulated light beam () according to a first spreading direction and to a second spreading direction defining an angle relative to the first spreading direction.8. The optical system according to one of to claim 3 , wherein:{'b': 18', '18, 'the modulated part carries the image to be projected into the replay volume () for exciting a light sensitive substance located in the replay volume (), and'}{'b': '17', 'the light ...

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Номер записи: 29
24-01-2019 дата публикации

Holographic System for Controlling Plasma

Номер: US20190025757A1
Автор: Brian Mullins
Принадлежит: Dualitas Ltd

A device ( 200,300 ) forms steerable plasma ( 222, 310 ) using a laser source ( 110 ) and a LCOS-SLM, Liquid Crystal on Silicon Spatial Light Modulator ( 112 ). The device generates a laser control signal and a LCOS-SLM (Liquid Crystal on Silicon Spatial Light Modulator) control signal. The laser source generates a plurality of incident laser beams based on the laser control signal. The LCOS-SLM receives the plurality of incident laser beams, modulates the plurality of incident laser beams based on the LCOS-SLM control signal to form a plurality of holographic wavefronts. Each holographic wavefront forms at least one corresponding focal point. The LCOS-SLM forms plasma at interference points of the focal points of the plurality of holographic wavefronts.

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Номер записи: 30
28-01-2021 дата публикации

Holographic display apparatus and method for providing expanded viewing window

Номер: US20210026298A1
Автор: Chilsung Choi, Hongseok Lee, Hoon Song, Hwi Kim, Jungkwuen AN, Yunhee Kim
Принадлежит: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SAMSUNG ELECTRONICS CO LTD

A holographic display apparatus capable of providing an expanded viewing window and a display method are provided. The holographic display apparatus includes an image processor configured to provide computer generated hologram (CGH) data to a spatial light modulator, wherein the image processor is further configured to generate a hologram data array comprising information of the holographic image to be reproduced at the first resolution or a resolution less than the first resolution, perform an off-axis phase computation on the hologram data array at the second resolution, and then, generate the CHG data at the first resolution.

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Номер записи: 31
02-02-2017 дата публикации

HOLOGRAPHIC IMAGE DISPLAY

Номер: US20170031317A1
Автор: Oh Hyun Oh
Принадлежит: EMPIRE TECHNOLOGY DEVELOPMENT LLC

Briefly stated, technologies are generally described for displaying a holographic image on a mobile device with a reference beam provided from a light source station. Example devices/systems described herein may use one or more of a mobile device and/or one or more light source stations. In various examples, the mobile device may include a holographic image display unit configured to receive a reference beam and display the holographic image responsive to the reference beam. The light source station may be configured to track a location of the holographic image display unit and provide a reference beam towards the holographic image display unit. The light source station may be further configured to exchange a control signal with the mobile device such that the holographic image display unit is operable to display the holographic image based on the control signal. 1. A system configured to display a holographic image , the system comprising:a mobile device including a holographic image display unit; anda light source station configured to track a location of the holographic image display unit and provide a reference beam towards the holographic image display unit, wherein the light source station is further configured to exchange a control signal with the mobile device such that the holographic image display unit is operable to display the holographic image based on the control signal.2. The system of claim 1 , wherein the holographic image display unit includes an SLM (spatial light modulator).3. The system of claim 1 , wherein the mobile device is configured to receive the control signal from the light source station over a communication channel.4. The system of claim 3 , wherein the mobile device is further configured to establish the communication channel including at least one of Bluetooth claim 3 , Zigbee claim 3 , RFID claim 3 , Wi-Fi claim 3 , or cellular network.5. The system of claim 3 , wherein the mobile device is further configured to establish the ...

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Номер записи: 32
02-02-2017 дата публикации

Apparatus and Method for Performing In-Line Lens-Free Digital Holography of an Object

Номер: US20170031318A1
Автор: Jayapala Murali, LAMBRECHTS Andy, STAHL Richard, VANMEERBEECK Geert
Принадлежит: IMEC VZW

The present disclosure relates to apparatuses and methods for performing in-line lens-free digital holography of objects. At least one embodiment relates to an apparatus for performing in-line lens-free digital holography of an object. The apparatus includes a point light source adapted for emitting coherent light. The apparatus also includes an image sensing device adapted and arranged for recording interference patterns resulting from interference from light waves directly originating from the point light source and object light waves. The object light waves originate from light waves from the point light source that are scattered or reflected by the object. The image sensing device comprises a plurality of pixels. The point light source comprises a broad wavelength spectrum light source and a pinhole structure. The image sensing device comprises a respective narrow band wavelength filter positioned above each pixel that filters within a broad wavelength spectrum of the point light source. 1. An apparatus for performing in-line lens-free digital holography of an object , comprising:a point light source adapted for emitting coherent light; andan image sensing device adapted and arranged for recording interference patterns resulting from interference from light waves directly originating from the point light source and object light waves,wherein the object light waves originate from light waves from the point light source that are scattered or reflected by the object, wherein the point light source comprises a broad wavelength spectrum light source and a pinhole structure, the broad wavelength spectrum light source being arranged to emit light towards the pinhole structure,', 'wherein the image sensing device comprises, for each of the disjoint subsets of pixels, a respective narrow band wavelength filter positioned above each pixel in the disjoint subset of pixels,, 'wherein the image sensing device comprises a plurality of pixels apportioned between disjoint ...

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Номер записи: 33
31-01-2019 дата публикации

DIRECTIONAL BACKLIGHT UNIT, THREE-DIMENSIONAL (3D) IMAGE DISPLAY APPARATUS, AND 3D IMAGE DISPLAYING METHOD

Номер: US20190033609A1
Автор: BAE Jihyun, CHUNG Jaeseung, HONG Seogwoo, KIM Dongouk, Kim Hyunjoon, LEE Sunghoon, PARK Joonyong, SHIM Dongsik, SHIN Bongsu
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A directional backlight unit, a three-dimensional (3D) image display apparatus, and a 3D image displaying method are provided. The directional backlight unit includes a light guide plate having an emission surface on which a plurality of grating elements including first and second groups of grating elements are provided. The plurality of grating elements are arranged such that light beams emitted from the first and second groups of grating elements commonly propagate through a plurality of pixel points and respectively form first and second groups of view points of which corresponding regions do not overlap with each other. 1. A directional backlight device comprising:a light guide plate;a light source configured to provide light to the light guide plate; anda plurality of grating elements provided on an emission surface of the light guide plate and configured to externally emit the light from the emission surface such that the light propagates through a plurality of pixel points spaced apart from the emission surface,wherein at least two of the plurality of grating elements match with each pixel point from among the plurality of pixel points, two adjacent grating elements match with different pixel points from among the plurality of pixel points, and light beams emitted from the at least two grating elements propagate through one pixel point matched with the at least two grating elements and then are simultaneously directed toward different view points.2. The directional backlight device of claim 1 , wherein an overall number of grating elements is an integer multiple of a number of pixel points included in the plurality of pixel points.3. The directional backlight unit of claim 1 , wherein the plurality of grating elements are arranged such that light beams emitted from the plurality of grating elements propagate through the plurality of pixel points and form a plurality of groups of view points and that regions within which different groups of view points are ...

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Номер записи: 34
31-01-2019 дата публикации

Special holographic security systems and similar holographic Defense systems

Номер: US20190033781A1
Автор: Johnson Anthony Dewayne
Принадлежит:

A special holographic security system utilizing and centered on holographic images of homeowners or security guards to provide safety for a person's home, businesses and properties by incorporating the hologram image with the sensors, lights, cameras and other security hardware. The hologram image can be incorporated with sound, pre-recorded messages, and real time surveillance, and smart phone applications to interact with potential break-ins and security breaches. Also taught are significant ways and methods that use of holographic systems can improve homeland security as well as defense tactics to increase security and save lives. This holographic security concept can be implemented in various creative ways to preserve security in the United States and abroad. 1. A Special holographic security systems comprised of:a.) at least one computer Systems;b.) a satellite Link;c.) a wireless Access Point;d.) at least one motion Sensor;e.) a powered hologram stationary and/or movable support disk;f.) a Hologram projector;g.) a pre-programed holographic image for a selected use; andh.) at least one monitoring devicewherein a sensor breach communicates with a satellite link which in turn concurrently activates the hologram security image and system, produces a hologram image in real time, alerts the local police, and contacts the home and/or business owner to detect and deter criminal activity.2. The special holographic security systems according to wherein the satellite link is comprised of at least one satellite claim 1 , at least one receiving dish; and a wired and/or wireless linkage to the monitoring computer system.382838586878889. The special holographic security systems according to wherein the powered hologram stationary and/or movable support disk is selected from a group consisting of a track/train track lead system (); a Pre-Programmed (Roomba) claim 1 , drive by wire/programmed tracking or moving system (); a stationary disk (); an oblong stationary platform (); ...

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Номер записи: 35
30-01-2020 дата публикации

THREE-DIMENSIONAL IMAGE DISPLAY APPARATUS AND IMAGE PROCESSING METHOD

Номер: US20200033615A1
Автор: KIM Yuntae, Lee Changkun, Lee Hongseok, SUNG Geeyoung
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A three-dimensional (3D) image display apparatus includes a processor configured to determine, from image data of a 3D image to be displayed, a representative depth value based on a current frame of the 3D image and a previous frame of the 3D image, and an imaging optical system configured to generate the 3D image in a predetermined space by modulating light based on the representative depth value. 1. A three-dimensional (3D) image display apparatus comprising:a processor configured to determine, from image data of a 3D image to be displayed, a representative depth value based on a current frame of the 3D image and a previous frame of the 3D image; andan imaging optical system configured to generate the 3D image in a predetermined space by modulating light based on the representative depth value.2. The 3D image display apparatus of claim 1 , wherein the processor is further configured to:set a reference depth map based on a first depth map of the current frame a second depth map of the previous frame,generate a depth histogram of the reference depth map; anddetermine a depth value having high frequency in the depth histogram of the reference depth map as the representative depth value.3. The 3D image display apparatus of claim 2 , wherein the processor is further configured to set the reference depth map by determining whether motion information exists for each pixel from the first depth map of the current frame and the second depth map of the previous frame.4. The 3D image display apparatus of claim 2 , wherein the processor is further configured to:calculate a differential image value representing a difference in the depth value for each location between the first depth map of the current frame and the second depth map of the previous frame image,based on the differential image value satisfying a predetermined condition, set the first depth map of the current frame as the reference depth map, andbased on the differential image value not satisfying the ...

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Номер записи: 36
08-02-2018 дата публикации

SYSTEMS AND METHODS FOR SUB-APERTURE BASED ABERRATION MEASUREMENT AND CORRECTION IN INTERFEROMETRIC IMAGING

Номер: US20180035883A1
Автор: KUMAR ABHISHEK, LEITGEB Rainer, TUMLINSON Alexandre R.
Принадлежит:

Systems and methods for sub-aperture correlation based wavefront measurement in a thick sample and correction as a post processing technique for interferometric imaging to achieve near diffraction limited resolution are described. Theory, simulation and experimental results are presented for the case of full field interference microscopy. The inventive technique can be applied to any coherent interferometric imaging technique and does not require knowledge of any system parameters. In one embodiment of the present application, a fast and simple way to correct for defocus aberration is described. A variety of applications for the method are presented. 124-. (canceled)25. A method for characterizing a wavefront in collected interferometric data on a sample , wherein the interferometric data is generated using a broad bandwidth light source and wherein the data contains information about a structure within the sample , said method comprising:dividing the interferometric data into lateral subsections at a plane where the wavefront should be characterized;generating images of the structure or a portion of the structure for at least two of the subsections;determining a correspondence between the at least two images;characterizing the wavefront using the correspondence; andstoring, displaying, or using as input to a subsequent process the resulting wavefront characterization.26. The method as recited in claim 25 , wherein the structure is isolated from other structures during the image generating step based on the axial position of the structure.27. The method as recited in claim 25 , wherein the generated images of the structure are limited in the axial dimension using the coherence property of the light source.28. The method as recited in claim 25 , further comprising transforming the data to a plane in the sample containing the structure or a portion of the structure.29. The method as recited in claim 25 , wherein the interferometric data is holoscopic imaging data.30. ...

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Номер записи: 37
04-02-2021 дата публикации

Diffractive optic for holographic projection

Номер: US20210033769A1
Автор: Rajesh Menon
Принадлежит: University of Utah Research Foundation UURF

Technology is described for methods and systems for a diffractive optic device ( 525 ) for holographic projection. The diffractive optic device can include a lens ( 535 ) configured to convey a hologram. The lens ( 535 ) further comprises a patterned material ( 510 ) formed with an array of cells having a non-planar arrangement of cell heights extending from a surface of the patterned material. The lens further optionally comprises a filling material ( 530 ) to fill gaps on both surfaces of the patterned material.

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Номер записи: 38
04-02-2021 дата публикации

METHOD FOR PHOTOCOPYING A SEQUENCE OF CUT SURFACES INSIDE A LIGHT-SCATTERING OBJECT WITH IMPROVED SCANNING

Номер: US20210034863A1
Автор: HILLMANN Dierck, HUTTMANN Gereon, KOCH Peter, SPAHR Hendrik, SUDKAMP Helge
Принадлежит:

The invention relates to a free-beam interferometric method for illuminating a sequence of sectional areas in the interior of the light-scattering object. The method makes it possible for the user to select a larger image field and/or a higher image resolution than previously possible with the occurrence of self-interference of the specimen light from a scattering specimen. 2. The method according to claim 1 , wherein the phase gradient along the predetermined axis in the camera plane is established on half the Nyquist frequency.3. The method according to any one of the preceding claims claim 1 , wherein a surrounding interval of the indexing is predetermined for each indexed camera image of at least a partial number of the detected camera images and a weighted stack mean value of all the camera images of the surrounding interval is calculated and the calculated stack mean value of the indexed camera image is deducted to calculate the structurally improved camera image.4. The method according to claim 3 , further comprising calculation of the images of the sectional areas in the interior of the object by two-dimensional Fourier filtering of the structurally improved camera images.5. The method according to claim 1 , wherein the light-scattering object is the retina of a living eye.6. The method according to claim 5 , further comprising biometric verification of the identity of a user. The invention relates to a method for illuminating sectional areas in the interior of a light-scattering object, wherein light of a short-coherent light source is split into a specimen light beam and a reference light beam and fed to a specimen arm and a reference arm variable in its length and thereafter superimposed on a two-dimensional light detector.Interferometric methods of the generic type are known, amongst other things, for optical coherence tomography (OCT). In particular, it is possible by means of free-beam interferometers to detect simultaneously the whole of the light ...

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Номер записи: 39
09-02-2017 дата публикации

METHOD AND DEVICE FOR ENCODING THREE-DIMENSIONAL SCENES WHICH INCLUDE TRANSPARENT OBJECTS IN A HOLOGRAPHIC SYSTEM

Номер: US20170038728A1
Автор: Pfeifer Nils, Zschau Enrico
Принадлежит:

Method for computing the code for the reconstruction of three-dimensional scenes which include objects which partly absorb light or sound. The method can be implemented in a computing unit. In order to reconstruct a three-dimensional scene as realistic as possible, the diffraction patterns are computed separately at their point of origin considering the instances of absorption in the scene. The method can be used for the representation of three-dimensional scenes in a holographic display or volumetric display. Further, it can be carried out to achieve a reconstruction of sound fields in an array of sound sources. 1. A method for computing holographic encoding values for an optical light modulator of a holographic system for the reconstruction of three-dimensional scenes , which include objects with transparent properties , for at least one observer eye , comprising:dividing the three-dimensional scene into individual object points and determining the coordinates of these object points,determining a virtual observer position which corresponds with the position of a selected observer eye where the three-dimensional scene is apparently perceived,determining all object points to be encoded which are not fully covered by other opaque object points seen from the virtual observer position as visible real or virtual object points,sorting of all visible object points to be encoded which are seen at the same angle from the virtual observer position by their distance to the virtual observer position,determining the actual brightness of each visible object point, with considering the location and intensity of all real and virtual light sources of the scene at the position of those object points at the angle at which they are seen from the virtual observer position, where the physical properties of the objects including the real and virtual light sources are taken into account,determining for each visible object point to be encoded an apparent brightness value with which the ...

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Номер записи: 40
15-02-2018 дата публикации

Lighting Device for Headlights with a Phase Modulator

Номер: US20180046138A1
Автор: Dackson Masiyano, Jamieson Christmas, Mikael Collin
Принадлежит: Dualitas Ltd

There is provided a lighting device arranged to produce a controllable light beam for illuminating a scene. The device comprises an addressable spatial light modulator arranged to provide a selectable phase delay distribution to a beam of incident light. The device further comprises Fourier optics arranged to receive phase-modulated light from the spatial light modulator and form a light distribution. The device further comprises projection optics arranged to project the light distribution to form a pattern of illumination as said controllable light beam.

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Номер записи: 41
03-03-2022 дата публикации

HOLOGRAPHIC DISPLAY APPARATUS AND OPERATING METHOD THEREOF

Номер: US20220066391A1
Автор: Lee Hongseok, SUNG Geeyoung, YANG Daeho
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A holographic display apparatus and a holographic display method are provided. The holographic display apparatus determines a representative depth from 3D image data; calculates a computer generated hologram (CGH) corresponding to the representative depth on the 3D image data; obtains the modulated CGH by modulating a phase of the CGH to increase an eye box; modulates a light according to the modulated CGH and generates a hologram image; and forms the generated hologram image at the representative depth.

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Номер записи: 42
13-02-2020 дата публикации

Holographic Lidar System and Method

Номер: US20200049828A1
Автор: Christmas Jamieson, Collin Mikael, Masiyano Dackson
Принадлежит:

There is provided a lighting device arranged to produce a controllable light beam for illuminating a scene. The device comprises an addressable spatial light modulator arranged to provide a selectable phase delay distribution to a beam of incident light. The device further comprises Fourier optics arranged to receive phase-modulated light from the spatial light modulator and form a light distribution. The device further comprises projection optics arranged to project the light distribution to form a pattern of illumination as said controllable light beam. 128-. (canceled)29. A method for performing a light detection and ranging (“LIDAR”) measurement on a scene , comprising:providing a beam of incident light;illuminating an addressable spatial light modulator with the beam of incident light;providing, using the spatial light modulator, a selectable phase delay distribution to the beam of incident light with the addressable spatial modulator to provide an exit beam, the phase delay distribution comprising a representation of a pattern of illumination in the hologram domain, andperforming holographic transformation of the pattern of illumination in the hologram domain, such that the phase-modulated light of the exit beam forms an image in the spatial domain; andprojecting the image in the spatial domain to form a pattern of illumination in space, the pattern of illumination in space illuminating the scene.30. The method of claim 29 , further comprising detecting illumination reflected from the scene claim 29 , wherein the detection of illumination reflected from the scene comprises capturing an image of the scene illuminated with the pattern of illumination in space.31. The method of claim 30 , further comprising comparing the captured image with the projected pattern of illumination.32. The method of claim 30 , further comprising detecting an abnormality in the scene based on the detected illumination.33. The method of claim 32 , wherein detecting the abnormality ...

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Номер записи: 43
02-03-2017 дата публикации

APPARATUS FOR HOLOGRAPHIC DISPLAY

Номер: US20170060088A1
Автор: Choi Jin Soo, CHOO Hyon Gon, KIM Hyun Eui, Kim Jin Woong, KIM Tae One
Принадлежит: Electronics and Telecommunications Research Institute

Provided is a holographic display apparatus including a motor configured to synchronize with a hologram transmitted based on user's point of view and to rotate; a spatial light modulator configured to load hologram data generated based on the user's point of view in a fixed position state and to perform a light modulation; a mirror configured to provide the hologram which is light-modulated by the spatial light modulator according to the user's point of view during the rotation by rotation operation of the motor; and a hologram correction unit configured to compensate a rotation error between the fixed spatial light modulator and the rotating mirror and to provide a corrected hologram data to the spatial light modulator. 1. A holographic display apparatus comprising:a motor configured to synchronize with a hologram transmitted based on user's point of view and to rotate;a spatial light modulator configured to load hologram data generated based on the user's point of view in a fixed position state and to perform a light modulation;a mirror configured to provide the hologram which is light-modulated by the spatial light modulator according to the user's point of view during the rotation by rotation operation of the motor; anda hologram correction unit configured to compensate a rotation error between the fixed spatial light modulator and the rotating mirror and to provide a corrected hologram data to the spatial light modulator.2. The holographic display apparatus of claim 1 , wherein the spatial light modulator is separate from the motor or a rotation shaft of the motor.3. The holographic display apparatus of claim 1 , wherein one side of the mirror is fixed to a rotation shaft of the motor.4. The holographic display apparatus of claim 1 , wherein the mirror is fixed to a rotation shaft of the motor by a fixing means.5. The holographic display apparatus of claim 1 , wherein claim 1 , when correcting a three-dimensional object in a form of computer graphic (CG) claim ...

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Номер записи: 44
02-03-2017 дата публикации

Fast generation of digital holograms

Номер: US20170060089A1
Автор: Peter Wai Ming Tsang
Принадлежит: City University of Hong Kong CityU

Fast processing of information represented in digital holograms is provided to facilitate generating a hologram for displaying three-dimensional (3-D) holographic images representative of a 3-D object scene on a display device. A holographic generator component (HGC) can receive or generate visual images, comprising depth and parallax information, of a 3-D object scene. A hologram processor component can apply a first non-uniform transform to a visual image to generate a first signal, and can apply a second transform to the first signal to generate a second signal that corresponds to a hologram that represents the 3-D object scene. The hologram can be illuminated with a light beam to facilitate generating a holographic image(s) that can be a reconstructed image that reconstructs the 3-D object scene. A display component can display the holographic image(s) for viewing by an observer.

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Номер записи: 45
08-03-2018 дата публикации

HOLOGRAM STAGE SETTING

Номер: US20180065059A1
Автор: LEE Kwanjoon
Принадлежит:

Disclosed is a hologram stage setting which is configured to apply a net screen of a grid network structure coated by a ceramic ball lens on the front part of a stage and directly project images, thereby enabling performance without specific limits on general multi-purpose stages instead of special stages, solving high cost problems caused by using a conventional foil screen, implementing high-resolution images, enhancing durability, and performing easy maintenance and repair. The hologram stage setting includes: a rear screen which is installed on the rear part of a stage to display a rear background image; a lower screen which is installed on the lower part of the stage to display a lower background image; a front screen which is installed on the front part of the stage to display a front hologram image; and a front hologram image projector which generates and projects the front hologram image. 1. A hologram stage setting , comprising:a rear screen which is installed at the rear part of the stage to display a rear background image;a lower screen which is installed at the lower part of the stage to display a lower background image;a front screen which is installed at the front part of the stage to display a front hologram image; anda front hologram image projector which generates and projects the front hologram image.2. The hologram stage setting of claim 1 , wherein the front hologram image projector is disposed at the upper front side of the front screen to directly project the front hologram image to the front screen.3. The hologram stage setting of claim 2 , wherein the front screen includes a net screen of a grid network structure coated by a ceramic ball lens and a support member which is installed along the edge of the net screen to keep the shape of the net screen.4. The hologram stage setting of claim 3 , wherein the net screen has a tensile strength of 150 kg/mmor more and an elongation of 4% or less.5. The hologram stage setting of claim 4 , wherein the ...

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Номер записи: 46
17-03-2022 дата публикации

Image processing apparatus, evaluation system, image processing program, and image processing method

Номер: US20220083004A1
Автор: Ryusuke Osaki, Sho Onozawa, Sohichiro Nakamura
Принадлежит: Fujifilm Corp

An image processing apparatus includes an acquisition unit that acquires a hologram obtained by imaging a plurality of granules contained within an imaging visual field, a generation unit that generates, from the hologram, phase difference images at positions different from each other in an optical axis direction in a case in which the hologram is captured, a specifying unit that specifies a plurality of image ranges in a direction of a plane intersecting the optical axis direction, which correspond to the plurality of granules, in an averaged image obtained by averaging at least some of the phase difference images, and an extraction unit that extracts the phase difference image at a center position of a corresponding granule in the optical axis direction for each of the plurality of image ranges.

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Номер записи: 47
28-02-2019 дата публикации

OPTICAL MODULATION METHOD, OPTICAL MODULATION DEVICE AND HOLOGRAPHIC DISPLAY APPARATUS

Номер: US20190064737A1
Автор: SHI Bingchuan
Принадлежит:

The present disclosure provides an optical modulation device, an optical modulation method and a holographic display apparatus. The optical modulation device is configured to perform optical modulation of a light beam and comprising: an amplitude modulator, configured to perform amplitude modulation of the light beam based on amplitude information in complex amplitude information of each pixel of a digital hologram; an optical scanning assembly, configured to scan the light beam within a predetermined range; a phase modulator, configured to perform phase modulation of the light beam based on phase information in the complex amplitude information. 1. An optical modulation device , configured to perform optical modulation of a light beam and comprising:an amplitude modulator, configured to perform amplitude modulation of the light beam based on amplitude information in complex amplitude information of each pixel of a digital hologram;an optical scanning assembly, configured to scan the light beam within a predetermined range;a phase modulator, configured to perform phase modulation of the light beam based on phase information in the complex amplitude information.2. The optical modulation device according to claim 1 , wherein one of the amplitude modulator and the phase modulator further includes:a light source, configured to generate the light beam.3. The optical modulation device according to claim 1 , wherein the optical scanning assembly is configured to scan the light beam corresponding to each pixel according to a position of respective pixel in the digital hologram.4. The optical modulation device according to claim 3 , wherein the optical scanning assembly includes:a micromirror, configured to rotate a corresponding deflection angle according to a position of each pixel in the digital hologram, and to reflect the light beam;a lens assembly, configured to output the light beam from the micromirror along a direction parallel to an optical axis of the lens ...

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Номер записи: 48
29-05-2014 дата публикации

Apparatus and method for generating hologram pattern

Номер: US20140146373A1
Автор: Dong Kyung Nam, Ho Cheon Wey, Seok Lee
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Provided is an apparatus and method for generating a hologram pattern with a reduced amount of computation. The apparatus may include a reference depth layer setting unit configured or having a capacity to set a reference depth layer using data associated with a three-dimensional (3D) object, a first hologram pattern generating unit configured to generate a first hologram pattern corresponding to the 3D object in the reference depth layer, and a second hologram pattern generating unit configured to generate a second hologram pattern in a hologram plane using the first hologram pattern.

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Номер записи: 49
17-03-2016 дата публикации

Holographic image display system

Номер: US20160077489A1
Автор: Aviad Kaufman, Carmel Rotschild
Принадлежит: Real View Imaging Ltd

Disclosed are methods and systems for displaying images, and for implementing volumetric user interfaces. One exemplary embodiment provides a system comprising: a light source; an image producing unit, which produces an image upon interaction with light approaching the image producing unit from the light source; an eyepiece; and a mirror, directing light from the image to a surface of the eyepiece, wherein the surface has a shape of a solid of revolution formed by revolving a planar curve at least 180° around an axis of revolution.

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Номер записи: 50
12-06-2014 дата публикации

Mobile terminal and controlling method thereof

Номер: US20140160145A1
Автор: Jonghwan KIM
Принадлежит: LG ELECTRONICS INC

A mobile terminal and controlling method thereof are disclosed, by which a holography user interface is provided. The present invention includes a controller, a holography storing medium configured to record an interference pattern generated by interference of light, and a holography output module configured to output a holography image attributed to diffraction between the light applied to the holography storing medium and the interference pattern in accordance with at least one preset holography type among a plurality of holography types under the control of the controller, wherein a plurality of the holography types comprise a default type, a holography background type and a holography pattern type, wherein if the default type is set, the controller controls the generated holography image to be outputted intactly, wherein if the holography background type is set, the controller controls the holography image to be outputted in a manner of being included in a 1st region within a preset holography background, and wherein if the holography pattern type is set, the controller controls the holography image to be outputted in accordance with the preset at least one holography pattern.

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Номер записи: 51
23-03-2017 дата публикации

LIGHTING DEVICE FOR HEADLIGHTS WITH A PHASE MODULATOR

Номер: US20170080848A1
Автор: Christmas Jamieson, Collin Mikael
Принадлежит:

There is provided a lighting device arranged to produce a controllable light beam for illuminating a scene. The device comprises an addressable spatial light modulator arranged to provide a selectable phase delay distribution to a beam of incident light. The device further comprises fourier optics arranged to receive phase-modulated light from the spatial light modulator and form a light distribution. The device further comprises projection optics arranged to project the light distribution to form a pattern of illumination as said controllable light beam. 1. A lighting device arranged to produce a controllable light beam for illuminating a scene , the device comprising:an addressable spatial light modulator arranged to provide a selectable phase delay distribution to a beam of incident light;Fourier optics arranged to receive phase-modulated light from the spatial light modulator and form a light distribution; andprojection optics arranged to project the light distribution to form a pattern of illumination as said controllable light beam,wherein the device is arranged to detect a location of a feature of the scene and modify the set of phase delay distributions on the spatial light modulator to provide additional illumination of the feature of the scene.2. The lighting device of claim 1 , wherein the device is arranged to redirect light from one part of the pattern of illumination to another part of the pattern of illumination in order to provide the additional illumination of the feature.3. The lighting device of claim 1 , wherein the device is arranged to redirect light to other parts of the pattern of illumination in order to provide the additional illumination of the feature without loss of light from the system.4. The lighting device of claim 1 , wherein the device is arranged to redirect a programmable amount of light to the feature in order to provide the additional illumination of the feature.5. The lighting device of claim 1 , wherein the feature includes ...

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Номер записи: 52
25-03-2021 дата публикации

DYNAMIC FRESNEL PROJECTOR

Номер: US20210088968A1
Автор: Grata Jeremy A., Jia Zhiheng
Принадлежит: Magic Leap, Inc.

A system for generating multi-depth image sequence comprising a modulation array. The modulation array comprising a plurality of light modulators which may shift light incident upon the modulators by a number of degrees. The plurality of light modulators may shift light in concert according to a modulation shift pattern. The modulation shift pattern can be configured to focus incident light to a voxel or to form a 3-D image. One or more modulation shift patterns can be changed or cycled through to raster one or more image objects in one or more image depth planes. 1. A system for generating multi-depth image sequences , comprising:one or more light sources;one or more modulation array comprising a plurality of light modulators, the one or more light sources configured to project light on the plurality of light modulators; and determine a three-dimensional location of the voxel within of an image depth plane of a multi-depth image based at least partially on a head rotation of a user and an eye rotation in the opposite direction of the head rotation, and', 'direct the one or more light sources to project light onto the plurality of light modulators to form a Fresnel pattern so that the plurality of light modulators focuses light corresponding to the identified Fresnel pattern onto the voxel at the determined three-dimensional location to form a portion of the multi-depth image., 'a processor configured to synchronously direct the one or more light sources and the plurality of light modulators to generate sequences of multi-depth images by rastering a plurality of voxels at different image depth planes, wherein to generate each voxel of each multi-depth image, the processor is configured to'}2. The system of claim 1 , wherein the plurality of light modulators are configured to shift a phase of the light by a number of degrees.3. The system of claim 1 , wherein the plurality of light modulators are configured to shift a phase of the light according to a modulation ...

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Номер записи: 53
29-03-2018 дата публикации

PROTECTION OF PRIVATE CONTENT AND OBJECTS

Номер: US20180088527A1
Автор: Bostick James E., Ganci, JR. John M., Keen Martin G., Rakshit Sarbajit K.
Принадлежит:

A method, system and computer program product for shielding objects from view are disclosed. In an embodiment, the method comprises detecting a specified presence around a given object; determining if the detected presence has authorization to view the given object; and when the detected presence does not have the authorization to view the given object, building a three dimensional holographic shielding image between the given object and the detected presence to shield the given object from the detected presence. In an embodiment, building the shielding image includes determining a position for the shielding image, and building the shielding image at the determined position. In an embodiment, a mobile communications device is used to build the holographic shielding image, and multiple cameras are installed in the mobile communications device to recognize placement of people in an area surrounding the given object. 1. A method of shielding objects from view , comprising:detecting a specified presence around a given object;determining if the detected presence has authorization to view the given object; andwhen the detected presence does not have the authorization to view the given object, building a three dimensional holographic shielding image between the given object and the detected presence to shield the given object from the detected presence.2. The method according to claim 1 , wherein the building a three dimensional holographic shielding image includes:determining a position for the holographic shielding image; andbuilding the holographic shielding image at said determined position.3. The method according to claim 2 , wherein the determining a position for the holographic shielding image includes:determining a position of the three dimensional holographic object;determining a position of the detected presence; andusing the determined position of the three dimensional holographic object and the detected presence in a process for determining the position of the ...

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Номер записи: 54
29-03-2018 дата публикации

METHOD OF COMPUTING A HOLOGRAM

Номер: US20180088528A1
Автор: Haussler Ralf, Leister Norbert, SCHWERDTNER Armin
Принадлежит:

A method of computing a hologram by determining the wavefronts at the approximate observer eye position that would be generated by a real version of an object to be reconstructed. In normal computer generated holograms, one determines the wavefronts needed to reconstruct an object; this is not done directly in the present invention. Instead, one determines the wavefronts at an observer window that would be generated by a real object located at the same position of the reconstructed object. One can then back-transforms these wavefronts to the hologram to determine how the hologram needs to be encoded to generate these wavefronts. A suitably encoded hologram can then generate a reconstruction of the three-dimensional scene that can be observed by placing one's eyes at the plane of the observer window and looking through the observer window. 1. A method of generating a holographic reconstruction of an object using a display device and a computer , the display device including a light source , an optical system and a spatial light modulator , the optical system illuminates the spatial light modulator , the optical system images the light source into an observer plane , and the holographic reconstruction of the object being visible by the observer if the observer's eyes are placed at the observer plane; the method comprising the step of:simultaneously computing hologram data for both eyes of the observer; andusing the computer to encode a hologram on the spatial light modulator.2. The method of wherein the wavefronts are reconstructed by the hologram or wherein the wavefronts are calculated for one or more observers windows.3. The method of wherein the hologram is computed by determining the wavefronts at the observer eye position that would be generated by the object to be reconstructed or wherein the hologram data is computed by a multi-channel processor.4. The method of wherein the determined wavefronts at the observer eye position are back-transformed to the spatial ...

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Номер записи: 55
28-03-2019 дата публикации

OPTICAL FILM AND DISPLAY BODY

Номер: US20190094802A1
Автор: Kagotani Akihito
Принадлежит: TOPPAN PRINTING CO., LTD.

According to one embodiment, there is provided an optical film with a recording surface, the recording surface including: a computation element section in which a phase component of light from each reconstruction point of a reconstructed image is computed, the computation element section corresponding to each reconstruction point one by one; a phase angle recording area in which a phase angle computed based on the phase component is recorded; and a phase angle non-recording area in which the phase angle is not recorded, the phase angle computed based on the phase component being recorded in an overlapping area where the computation element section and the phase angle recording area overlap each other. 1. An optical film with a recording surface ,the recording surface comprising:a computation element section in which a phase component of light from each reconstruction point of a reconstructed image is computed, the computation element section corresponding to each reconstruction point one by one;a phase angle recording area in which a phase angle computed based on the phase component is recorded; anda phase angle non-recording area in which the phase angle is not recorded,the phase angle computed based on the phase component being recorded in an overlapping area where the computation element section and the phase angle recording area overlap each other.2. The optical film according to claim 1 , wherein the phase component of light from each reconstruction point is computed for each unit block claim 1 , and the phase angle computed based on the phase component is recorded in the phase angle recording area for each unit block.3. The optical film according to claim 2 , wherein the computation element section is defined by a viewing angle θ shown in an equation of θ<(A/m) claim 2 ,where in a case of (λ/2d)≤1, A=a sin(λ/2d), λ is a wavelength of the light, d is an arrangement interval of the unit blocks in a viewing angle direction, and m is a real number of 3 or more.5. ...

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Номер записи: 56
13-04-2017 дата публикации

AIRCRAFT CABIN ASSEMBLY

Номер: US20170101183A1
Автор: Lutzer Wilhelm
Принадлежит:

An aircraft cabin assembly is depicted and described having a cabin wall, which surrounds a cabin interior space and has a wall surface facing the cabin interior space, and having a light source, which is provided in order to emit light onto the wall surface. The problem of providing an aircraft cabin assembly which, irrespective of the light outside of the aircraft cabin assembly, as effectively as possible gives a passenger in the cabin interior space the impression that the cabin interior space is larger than it actually is, is solved in that the wall surface has a holographic image of an object and in that the light source is designed to emit the kind of light onto the wall surface that allows the holographic image to be seen as a three-dimensional image of the object which is the subject of the holographic image. 1. An aircraft cabin assembly comprising:a cabin wall, which surrounds a cabin interior space and has a wall surface facing the cabin interior space; anda light source provided to emit light onto the wall surface;the wall surface having a holographic image of an object; andthe light source being configured to emit light onto the wall surface that allows the holographic image to be seen as a three-dimensional image of the object which is a subject of the holographic image.2. The aircraft cabin assembly according to claim 1 , wherein the object corresponds to the wall surface before application of the holographic image.3. The aircraft cabin assembly according to claim 2 , wherein the holographic image depicts the wall surface in a plane which claim 2 , viewed from a direction of the cabin interior space claim 2 , lies behind a plane of the actual wall surface in which the holographic image is disposed.4. The aircraft cabin assembly according to claim 1 , wherein the object corresponds to a landscape with a horizon or to a sea with a horizon.5. The aircraft cabin assembly according to claim 1 , wherein the object corresponds to a forest.6. The aircraft ...

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Номер записи: 57
12-04-2018 дата публикации

OPTICALLY TRAPPED ATOM TRANSFER TWEEZER THROUGH HOLOGRAM AND METHOD USING THE SAME

Номер: US20180101134A1
Автор: AHN Jaewook, KIM HYOSUB, LEE Woojun
Принадлежит: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

An optically trapped atom transfer tweezer may be provided that includes: an optical modulator which modulates incident light and generates a first hologram; a first lens which images the first hologram on an intermediate image plane and generates a first holographic image having any potential shape; a second lens which re-images the first holographic image on an entrance pupil of a third lens; the third lens which re-images a second hologram generated by the re-imaging of the second lens on a plane where an optically trapped atom array exists; a photographing device which captures optically trapped cold atoms from a second holographic image generated on the plane where an optically trapped atom array exists; and a controller which controls the optical modulator to adjust the second holographic image on the basis of the optically trapped atom image captured by the photographing device. As a result of this, the optically trapped atom array can be easily transferred to any position. 1. An optically trapped atom transfer tweezer comprising:an optical modulator which modulates incident light and generates a first hologram;a first lens which images the first hologram on an intermediate image plane and generates a first holographic image having any potential shape;a second lens which re-images the first holographic image on an entrance pupil of a third lens;the third lens which re-images a second hologram generated by the re-imaging of the second lens on a plane where an optically trapped atom array exists;a photographing device which captures optically trapped cold atoms from a second holographic image generated on the plane where an optically trapped atom array exists; anda controller which controls the optical modulator to adjust the second holographic image on the basis of the optically trapped atom image captured by the photographing device.2. The optically trapped atom transfer tweezer of claim 1 , wherein the photographing device is an electron multiplying charge- ...

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Номер записи: 58
14-04-2016 дата публикации

APPARATUS AND METHOD FOR DIGITAL HOLOGRAPHIC TABLE TOP DISPLAY

Номер: US20160105658A1
Автор: CHOO Hyon Gon, Kim Jin Woong, Lee Soo Hyun, Moon Kyung Ae
Принадлежит:

Disclosed is an apparatus and method for digital holographic table top display. The digital holographic table top display apparatus includes: a camera array configured to capture a plurality of channel images in an omni-directional range from a table by using a plurality of cameras; a controller configured to detect an observer from the plurality of channel images and to track a position of pupils of the observer in at least one channel image from which the observer is detected; and a display configured to reproduce a digital holographic image in a three-dimensional (3D) space according to the tracked position of the pupils. 1. A digital holographic table top display apparatus , comprising:a camera array configured to capture a plurality of channel images in an omni-directional range from a table by using a plurality of cameras;a controller configured to detect an observer from the plurality of channel images and to track a position of pupils of the observer in at least one channel image from which the observer is detected; anda display configured to reproduce a digital holographic image in a three-dimensional (3D) space according to the tracked position of the pupils.2. The apparatus of claim 1 , wherein the camera array of the plurality of cameras is arranged in a circle toward a center of the table to acquire images around 360 degrees.3. The apparatus of claim 1 , wherein the controller comprises:a multi-grid image generator configured to combine the channel images captured by the plurality of cameras to generate one multi-grid image;an observer detector configured to detect at least one observer from the multi-grid image;a channel determiner configured to select a channel associated with a channel image from which the observer is detected;a pupil tracker configured to track the position of the pupils in the channel image associated with information on the selected channel; anda coordinate calculator configured to calculate 3D coordinates of the position of the ...

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Номер записи: 59
02-06-2022 дата публикации

Method and apparatus for generating computer-generated hologram

Номер: US20220171334A1
Автор: Daeho YANG, Hongseok Lee, Jong-Young HONG, Myungjae JEON
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Provided is a method of generating a computer-generated hologram (CGH), the method including obtaining complex data including amplitude data of object data and phase data of the object data corresponding to a spatial light modulator (SLM) plane by propagating the object data from an image plane to the SLM plane, encoding the complex data into encoded amplitude data, and generating a CGH based on the object data including the encoded amplitude data.

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Номер записи: 60
19-04-2018 дата публикации

Multifunctional optical element and method using multiple light scattering

Номер: US20180107157A1
Автор: Jongchan Park, YongKeun PARK
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

Disclosed herein are a multifunctional optical element and method using multiple light scattering. An optical control method using multiple light scattering may include the steps of splitting coherent light into a signal beam and a reference beam, controlling the wavefront of the signal beam, forming an interference pattern by making the signal beam having the controlled wavefront and the reference beam incident on photorefractive materials, recording the interference pattern on the photorefractive materials, reconstructing the signal beam having the controlled wavefront by the interference pattern by radiating the reference beam to the photorefractive materials on which the interference pattern has been recorded again, and controlling the properties of light passing through complex media based on multiple light scattering generated by the complex media as the reconstructed signal beam is incident on the complex media.

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Номер записи: 61
19-04-2018 дата публикации

Method for phase retrieval to reduce a sampling requirement when imaging a dynamic process

Номер: US20180107160A1
Автор: Andrew P. Ulvestad, Ashish Tripathi, Paul H. Fuoss, Stefan M. Wild, Stephan O. Hruszkewycz
Принадлежит: UChicago Argonne LLC

A method for retrieving phase information in a coherent diffraction imaging process includes acquiring a plurality of 3D data sets, each 3D data set corresponding to one of a plurality of time states, and reconstructing a 3D image of the object at a given time state using the 3D data set from all of the time states. Each 3D data set is acquired by: illuminating an object positioned in a first position with a coherent beam; measuring a first 2D diffraction pattern using an area detector; rotating the object around a tilt axis thereof to a second position that is different from the first position; re-illuminating the object positioned in the second position with the coherent beam; re-measuring a second 2D diffraction pattern using the area detector; and repeating the rotating, re-illuminating and re-measuring steps such that each 3D data set includes a predetermined number of diffraction patterns.

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Номер записи: 62
20-04-2017 дата публикации

Systems and Methods for Performing Self-Interference Incoherent Digital Holography

Номер: US20170108829A1
Автор: Kim Myung K.
Принадлежит: UNIVERSITY OF SOUTH FLORIDA

In one embodiment, a self-interference incoherent digital holography system including a light sensor and a diffractive filter configured to receive light from an object to be holographically imaged and generate holographic interference patterns on the light sensor. A self-interference incoherent digital holography system comprising: a light sensor; and a diffractive filter configured to receive light from an object to be holographically imaged and generate holographic interference patterns on the sensor. 1. A self-interference incoherent digital holography system comprising:a light sensor; anda diffractive filter configured to receive light from an object to be holographically imaged and generate holographic interference patterns on the sensor.2. The system of claim 1 , wherein the light sensor is a charge-coupled device.3. The system of claim 1 , wherein the diffractive filter comprises two superposed Fresnel mask patterns.4. The system of claim 3 , wherein the Fresnel mask patterns have different focal lengths.5. The system of claim 4 , wherein the Fresnel mask patterns are angularly offset relative to each other.6. The system of claim 1 , wherein the system is implemented in a microscope.7. The system of claim 1 , wherein the system is implemented in a telescope.8. The system of claim 1 , wherein the system is implemented in a holographic camera.9. A method for creating a holographic image of an object claim 1 , the method comprising:receiving incoherent light from the object with a diffractive filter comprising superposed Fresnel mask patterns; andgenerating holographic interference pattern on a light sensor using the diffractive filter.10. The method of claim 9 , wherein receiving incoherent light comprises receiving x-ray light.11. The method of claim 9 , wherein receiving incoherent light comprises receiving ambient light.12. The method of claim 9 , wherein the superposed Fresnel mask patterns have different focal lengths.13. The method of claim 9 , wherein ...

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Номер записи: 63
02-04-2020 дата публикации

Method and apparatus for processing hologram image data

Номер: US20200103825A1
Автор: Hojung Kim, Hongseok Lee, Kichul Kim, Yongkyu Kim
Принадлежит: Industry Cooperation Foundation of University of Seoul, SAMSUNG ELECTRONICS CO LTD

A method and apparatus for processing hologram image data capable of optimizing image quality of a hologram image are provided. The image processing method includes receiving input image data, reading a header included at a predetermined location in the input image data, and generating hologram data configured to display a hologram image by performing a Fourier calculation and pixel encoding on the input image data based on at least one parameter recorded in the header, wherein the at least one parameter recorded in the header includes at least one of depth information, scale information, and gamma information.

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Номер записи: 64
26-04-2018 дата публикации

Positional tracking system with holographic encoded positions

Номер: US20180113418A1
Автор: Jeffrey R. Stafford
Принадлежит: Sony Interactive Entertainment Inc

An emitter laser illuminates multiple reflectors each of which produces a unique robust code, with the laser being sequentially moved between illuminating successive reflectors. The reflectors send light to a holographic film, and the laser poses can be associated with the respective codes. Subsequently, an illuminator such as another laser can illuminate the film, and a sensor positioned near the film records what code is produced, so that the code can be correlated to a laser pose with respect to the film and sensor.

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Номер записи: 65
09-06-2022 дата публикации

APPARATUS FOR ANALYZING DEPTH OF HOLOGRAPHIC IMAGE AND ANALYZING METHOD THEREOF

Номер: US20220179359A1
Автор: CHO Seong-Mok, CHOI Ji Hun, Hwang Chi-Sun, JOO Chul Woong, KANG Seung Youl, KIM Gi Heon, KIM Hee-ok, KIM Joo Yeon, KIM Yong Hae, LEE HA KYUN, Lee Won Jae, MOON Jaehyun, NA Jeho, PI Jae-Eun, YANG Jong-Heon
Принадлежит:

Disclosed is an apparatus of analyzing a depth of a holographic image according to the present disclosure, which includes an acquisition unit that acquires a hologram, a restoration unit that restores a three-dimensional holographic image by irradiating the hologram with a light source, an image sensing unit that senses a depth information image of the restored holographic image, and an analysis display unit that analyzes a depth quality of the holographic image, based on the sensed depth information image, and the image sensing unit uses a lensless type of photosensor. 1. An apparatus of analyzing a depth of a holographic image comprising:an acquisition unit configured to acquire a hologram;a restoration unit configured to restore a three-dimensional holographic image by irradiating the hologram with a light source;an image sensing unit configured to sense a depth information image of the restored holographic image; andan analysis display unit configured to analyze a depth quality of the holographic image, based on the sensed depth information image, andwherein the image sensing unit uses a lensless type of photosensor.2. The apparatus of claim 1 , wherein the image sensing unit includes:a photosensor panel configured to measure the holographic image restored by the restoration unit; andan electric rail configured to move the photosensor panel in a depth direction of the holographic image.3. The apparatus of claim 2 , wherein the depth direction of the holographic image corresponds to a direction of a spatial light modulator of the restoration unit from the photosensor panel.4. The apparatus of claim 1 , wherein the image sensing unit includes:a plurality of transparent plane photosensors configured to measure the holographic image restored by the restoration unit; andat least one electric rail configured to move the plurality of transparent plane photosensors in a depth direction of the holographic image.5. The apparatus of claim 4 , wherein the plurality of ...

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Номер записи: 66
09-06-2022 дата публикации

METHOD AND HOLOGRAPHIC APPARATUS FOR THE THREE-DIMENSIONAL REPRESENTATION OF SCENES

Номер: US20220179360A1
Автор: Lazarev Grigory, Leister Norbert
Принадлежит:

An apparatus and method for the three-dimensional representation of scenes comprising an illumination device and a spatial light modulation device for modulating incident light. A hologram is encoded into the spatial light modulation device and the hologram is composed of individual sub-holograms, in which an object point of an object of the scene to be reconstructed by the hologram is encoded in each case. The spatial light modulation device is illuminated with substantially coherent light by the illumination device in at least one illumination section. An amplitude distribution and a phase distribution for representing the scene and amplitude values and phase values derived therefrom are determined for encoding the spatial light modulation device. The amplitude of the light incident on the spatial light modulation device in the respective illumination section is set based on at least one parameter at least determined from the amplitude values in this illumination section. 1. A method for the three-dimensional representation of scenes comprising an illumination device and at least one spatial light modulation device for modulating incident light , where a hologram is encoded into the at least one spatial light modulation device and the hologram is composed of individual sub-holograms , in which an object point of an object of a scene to be reconstructed by the hologram is encoded in each case , where the at least one spatial light modulation device is illuminated with substantially coherent light by the illumination device in at least one illumination section , where an amplitude distribution and a phase distribution for representing the scene and amplitude values and phase values derived therefrom are determined for encoding the at least one spatial light modulation device , and where the amplitude of the light incident on the at least one spatial light modulation device in the respective illumination section is set on the basis of at least one parameter at least ...

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Номер записи: 67
27-04-2017 дата публикации

Holographic display

Номер: US20170115487A1
Автор: Adrian Travis
Принадлежит: Microsoft Technology Licensing LLC

A display device includes an optical sensor configured to image a user eye, an image source configured to provide image light, a holographic film including a plurality of holograms, and a controller. Each hologram is recorded with a same reference beam but recorded differently so as to differently diffract image light received from the light source. The controller is configured to determine, via the optical sensor, a position of the user eye, and adjust, based on the determined position of the user eye, a state of the holographic film such that a particular hologram of the plurality of holograms diffracts image light to the position of the user eye.

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Номер записи: 68
18-04-2019 дата публикации

IMAGE DATA PROCESSING METHOD AND APPARATUS

Номер: US20190113886A1
Автор: JI Hyunwook, Kim Hojung, KIM Kichul, KIM Yongkyu, Lee Hongseok, PARK Hyunsik
Принадлежит:

With regard to image data processing, a method of obtaining a focus term by using periodicity of the focus term is provided. The focus term may be used in a plurality of operation processes for processing image data. 1. An image data processing apparatus comprising:a receiver configured to receive image data comprising depth information and color information of an image; perform at least one one-dimensional (1D) Fast Fourier Transform (FFT) on the image data, based on a first distance,', 'perform scaling, using a first constant, on image data obtained by performing the at least one 1D FFT, and', 'perform an operation using a focus term used for focusing the image on image data obtained by the scaling using the first constant, and, 'a processor configured toa display configured to display the image under control of the processor.2. The apparatus of claim 1 , wherein the processor is further configured to:perform scaling using a second constant on image data obtained by performing the operation using the focus term, wherein the second constant is determined based on the first constant, andcontrol the display to display the object by using image data obtained by performing the scaling using the second constant.3. The apparatus of claim 2 , wherein the processor is further configured to:perform at least one 1D FFT, on image data obtained by the scaling using the second constant, based on a second distance,perform scaling using a third constant, on image data obtained by performing the at least one 1D FFT based on the second distance, andcontrol the display to display the object by using image data obtained by the scaling using the third constant.4. The apparatus of claim 1 , wherein the at least one 1D FFT based on the first distance comprises a 1D FFT in a horizontal direction and a 1D FFT a vertical direction.5. The apparatus of claim 1 , wherein:the at least one 1D FFT based on the first distance is a 1D FFT in a first direction, and the processor is further ...

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Номер записи: 69
18-04-2019 дата публикации

SYSTEM, APPARATUS AND METHOD FOR EXTRACTING IMAGE CROSS-SECTIONS OF AN OBJECT FROM RECEIVED ELECTROMAGNETIC RADIATION

Номер: US20190113888A1
Автор: ROSEN Joseph
Принадлежит:

An apparatus and method to produce a hologram of a cross-section of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as light, from the object. The electromagnetic radiation assembly is further configured to diffract the received electromagnetic radiation and transmit a diffracted electromagnetic radiation. An image capture assembly is configured to capture an image of the diffracted electromagnetic radiation and produce the hologram of the cross-section of the object from the captured image. The hologram of the cross-section includes information regarding a single cross-section of the object. 1an electromagnetic radiation assembly different from the object, said electromagnetic radiation assembly configured to receive the emitted electromagnetic radiation from the object, diffract the received electromagnetic radiation, and transmit a diffracted electromagnetic radiation;an image capture assembly configured to capture at least one image of the diffracted electromagnetic radiation, and produce holograms of plural cross-sections of the object from the at least one captured image, each of the holograms including information regarding a single cross section of the object, anda varying device configured to vary a distance between the object and at least one component of the electromagnetic radiation assembly, whereinthe electromagnetic radiation assembly is between the object and the image capture assembly.. An apparatus configured to produce holograms of plural cross sections of an object that emits an emitted electromagnetic radiation, said apparatus comprising: This application is a continuation of U.S. application Ser. No. 15/475,657 filed Mar. 31, 2017, which is a continuation Ser. No. 14/331,720, filed Jul. 15, 2014 (now U.S. Pat. No. 9,645,548 issued May 9, 2017), which is a continuation of U.S. application Ser. No. 14/083,044, filed Nov. 18, 2013 (now abandoned), which is a continuation of ...

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Номер записи: 70
13-05-2021 дата публикации

METHOD OF GENERATING MESH-BASED HOLOGRAM

Номер: US20210141339A1
Автор: CHEON Sang Hoon, HONG Keehoon, OH Kwan-Jung, PARK Joong-Ki, YEOM HANJU
Принадлежит: Electronics and Telecommunications Research Institute

Provided is a hologram generation method including receiving a distribution of a polygon and generating an angular spectrum based on the distribution of the polygon, determining whether a rotation angle of the polygon is included in a first section determined based on a maximum diffraction angle of a spatial light modulator, and recording the angular spectrum if it is determined that the rotation angle is included in the first section. 1. A hologram generation method comprising:receiving a distribution of a polygon and generating an angular spectrum based on the distribution of the polygon;determining whether a rotation angle of the polygon is included in a first section determined based on a maximum diffraction angle of a spatial light modulator; andrecording the angular spectrum if it is determined that the rotation angle is included in the first section.2. The method of claim 1 , wherein the first section is a section between a value obtained by adding half of the maximum diffraction angle at −90 degrees and a value obtained by subtracting half of the maximum diffraction angle at 90 degrees claim 1 ,wherein the maximum diffraction angle is a positive value.3. The method of claim 1 , wherein the determining of whether the rotation angle of the polygon is included in the first section comprises removing at least a part of the angular spectrum if it is determined that the rotation angle is not included in the first section.4. The method of claim 1 , wherein the determining of whether the rotation angle of the polygon is included in the first section comprises recording a component traveling in the output direction of the spatial light modulator in the angular spectrum if it is determined that the rotation angle is not included in the first section.5. The method of claim 1 , wherein the determining of whether the rotation angle of the polygon is included in the first section comprises:determining whether the rotation angle is included in a second section different ...

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Номер записи: 71
03-05-2018 дата публикации

INTERACTION BETWEEN MULTIPLE HOLOGRAMS

Номер: US20180120766A1
Автор: Kline Eric V., Rakshit Sarbajit K.
Принадлежит: INTERNATIONAL BUSINESS MACHINES CORPORATION

An apparatus for hologram interaction is disclosed. A method and system also perform the functions of the apparatus. The apparatus includes an identification module that identifies a first hologram being projected within a space. The first hologram is projected by a first system. The apparatus includes a projection module that projects a second hologram within the space. The second hologram projected by a second system. The apparatus includes a detection module that detects movement and position of the first hologram and an interaction module that controls position and movement of the second hologram to dynamically interact with the first hologram. The first hologram dynamically interacting with the second hologram includes reactions of the second hologram in response to the detected movement and the position of the first hologram. 1. An apparatus comprising:an identification module that identifies a first hologram being projected within a space, the first hologram projected by a first system;a projection module that projects a second hologram within the space, the second hologram projected by a second system;a detection module that detects movement and position of the first hologram; andan interaction module that controls position and movement of the second hologram to dynamically interact with the first hologram, wherein the first hologram dynamically interacting with the second hologram comprises reactions of the second hologram in response to the detected movement and the position of the first hologram,wherein said modules comprise one or more of hardware circuits, a programmable hardware device and executable code, the executable code stored on one or more computer readable storage media.2. The apparatus of claim 1 , wherein the identification module identifies the first hologram using a camera in communication with the second system and the detection module detects the movement and position of the first hologram using the camera.3. The apparatus of claim 1 , ...

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Номер записи: 72
25-04-2019 дата публикации

METHOD FOR PRODUCING HOLOGRAMS

Номер: US20190121291A1
Автор: Futterer Gerald, Haussler Ralf, Leister Norbert
Принадлежит:

The invention relates to a method for generating holograms for encoding in a spatial light modulation device for a holographic display for representing a two- and/or three-dimensional scene. The two- and/or three-dimensional scene is decomposed into object points and encoded in a hologram, which is subdivided into subholograms, in the spatial light modulation device. The object points of the scene are encoded into encoding regions on the spatial light modulation device. A size and/or shape of the encoding region is selected in relation to a size and/or shape of a subhologram, assigned to the encoding region, in such a way that crosstalk of higher diffraction orders in a virtual visibility region is reduced. 1. A method for generating holograms for encoding in a spatial light modulation device for a holographic display for representing a two- and/or three-dimensional scene , comprising:decomposing the scene into object points and encoding in a hologram, which is subdivided into subholograms, in the spatial light modulation device,encoding object points into encoding regions on the spatial light modulation device, andselecting a size and/or shape of the encoding region in relation to a size and/or shape of a subhologram, assigned to the encoding region, in such a way that crosstalk of higher diffraction orders in a virtual visibility region is reduced.2. The method as claimed in claim 1 , wherein the value of the amplitude in the encoding region for the object point is reduced continuously toward the edge region of the encoding region.3. The method as claimed in claim 1 , wherein in the case of a field of view SF≥30 degrees claim 1 , a virtual visibility region claim 1 , which is formed parallel to the spatial light modulation device claim 1 , is calculated for a central region of the spatial light modulation device claim 1 , a virtual visibility region claim 1 , which is formed at an angle to the spatial light modulation device claim 1 , corresponding to an angle at ...

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Номер записи: 73
16-04-2020 дата публикации

HOLOGRAM LOCATION

Номер: US20200117137A1
Автор: Gasking Lincoln
Принадлежит:

A machine is configured to perform hologram location within a scene to be generated. The machine accesses target motion data that describes movement of a target device. Based on the target motion data, the machine determines a target motion vector that indicates a target speed of the target device and indicates a target direction in which the target device is moving. The machine determines a hologram motion vector for a hologram to be generated for display by a user device. The hologram motion vector indicates a relative speed of the hologram and indicates a relative direction of movement for the hologram. The machine then causes the user device to generate a scene in which the hologram moves at a speed determined based on the target speed and on the relative speed, as well as moves in a direction determined based on the target direction and on the relative direction. 1. A method comprising:detecting, by one or more processors, movement of a target device relative to a planet surface;determining, by the one or more processors, a target speed at which the target device is moving and a target direction in which the target device is moving;determining, by the one or more processors, a relative speed of a hologram to be displayed relative to the target device and a relative direction of the hologram to be displayed relative to the target device; andcausing, by the one or more processors, a display device to display the hologram in motion relative to the planet surface at a hologram speed determined based on the target speed and on the relative speed and in a hologram direction determined based on the target direction and on the relative direction.2. The method of claim 1 , further comprising:accessing display motion data that describes movement of the display device relative to the planetary surface; and wherein:the determining of the target speed at which the target device is moving is based on the accessed display motion data and determines a relative target speed of ...

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Номер записи: 74
16-04-2020 дата публикации

HOLOGRAPHIC IMAGE DISPLAY SYSTEM

Номер: US20200117140A1
Автор: KAUFMAN Aviad, ROTSCHILD Carmel
Принадлежит: Real View Imaging Ltd.

A volumetric display system including a volumetric display for displaying a scene viewable as a three-dimensional floating-in-the-air scene in a display space, enabling a user to reach a first object into the display space, a location determination unit locating real objects in the display space, providing a location of the first object when the first object is inserted into the display space, and a computer for receiving the location of the first object, detecting when the location of the first object is at a location where an object is displayed in the three-dimensional scene, thereby determining that the first object is viewable as touching the displayed object following a detection of the first object viewable as touching the displayed object, producing a new three-dimensional scene displaying the displayed object as if manipulated by the first object. Related apparatus and methods are also described. 1. A method of providing a user interface for a volumetric display , comprising:displaying a scene viewable as a three-dimensional floating-in-the-air scene in a display space;detecting a location of a first object inserted into the display space;detecting when the location of the first object is at a location where an object is displayed in the three-dimensional scene, thereby determining that the first object is viewable as touching the displayed object; andfollowing a detection of the first object viewable as touching the displayed object, producing a new three-dimensional scene displaying the displayed object as if manipulated by the first object.2. The method of wherein the first object is a user's hand.3. The method of and further comprising:measuring a location of the user's fingers in the display space; anddetermining that the user's hand is viewable as grabbing the displayed object based on measuring a gap between the user's fingers.4. The method of and further comprising providing a plurality of visual depth cues to a viewer of the three-dimensional ...

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Номер записи: 75
31-07-2014 дата публикации

Apparatus and method for generating digital hologram

Номер: US20140211286A1
Автор: Eun Young Chang, Je Ho Nam, Min Sik Park
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Disclosed are an apparatus and a method for generating a digital hologram for reproducing a 3D stereoscopic image, and more particularly, an apparatus and a method for generating a digital hologram, which generate the digital hologram by receiving a depth information pre-processing process of generating first depth map information constituted by a first depth level and second depth map information constituted a second depth level by receiving color image information from an imaging unit.

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Номер записи: 76
23-04-2020 дата публикации

SYSTEM FOR PROVIDING AN IMMERSIVE EXPERIENCE USING MULTI-PLATFORM SMART TECHNOLOGY, CONTENT STREAMING, AND SPECIAL EFFECTS SYSTEMS

Номер: US20200125031A1
Автор: Weston Denise Chapman
Принадлежит: INFINITE KINGDOMS LLC

The immersive, interactive system according to the present disclosure employs interconnected hardware, firmware, software, and mixed technology comprising projection systems, smart entertainment technologies, tracking systems, sound, light, visual displays, and other physical and/or special effect displays to create an entertainment experience that brings people together to enjoy a common story, theme, music, or game. In one embodiment, the system takes the form of a magical campfire that interacts with members of the audience to present an interactive and customized visual and audio display and story. The system may connect and interact with other technological platforms and smart devices to supplement the processing and experience, and may be updated to maintain relevant and timely content, and add additional features. The system may exist in a large scale environment, such as a theatre, theme park, or museum, or may be condensed to a smaller-scale version for home use. 1. A system comprising:An interactive environment comprising one or more sensors, microphones, computer system, processors, and/or transceivers,A simulated campfire unit comprising one or more simulated log structures, projection systems, lights, speakers, and/or communication interfaces,Wherein the simulated campfire unit projects visual and/or holographic displays and/or audio to execute performance of a pre-programmed story or game,Wherein the sensors and/or microphones of the interactive environment are capable of detecting the presence of an individual or object,Wherein once an individual or object is detected by the sensors, a processor may determine an appropriate response to be produced.2. The system of claim 1 , wherein the appropriate response includes the augmentation or modification of the pre-programmed story or game according to the pre-determined preferences of the individual.3. The system of claim 1 , wherein the associated object consists of a simulated log structure claim 1 , ...

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Номер записи: 77
18-05-2017 дата публикации

DISPLAY DEVICE AND DRIVING METHOD THEREOF

Номер: US20170139375A1
Автор: CHUNG Wooseong, JHUNG Seungoh, KIM Chongsok, LEE Minho, PARK Jaehan
Принадлежит: LG ELECTRONICS INC.

A display device is disclosed. The display device comprises: a flat display means; a hologram generation means; and a controller for acquiring a holographic image with respect to at least a portion of a planar image outputted through the flat display means, and outputting the acquired holographic image through the hologram generation means. 1. A display device comprising:a flat display means;a hologram generation means; anda controller configured to acquire a holographic image with respect to at least a portion of a planar image output through the flat display means and to output the obtained holographic image through the hologram generation means.2. The display device according to claim 1 , wherein the controller is configured to acquire depth information from the at least a portion of the planar image and to obtain the holographic image with respect to the at least a portion of the planar image on the basis of the acquired depth information.3. The display device according to claim 2 , wherein the controller is configured to select a specific image object included in the planar image and to acquire a holographic image of the selected image object on the basis of depth information of the selected image object.4. The display device according to claim 3 , wherein the controller is configured to select the specific image object from among image objects included in the planar image on the basis of depth information of the image objects included in the planar image.5. The display device according to claim 3 , wherein the controller is configured to select the specific image object from among image objects included in the planar image on the basis of a gesture of a user claim 3 , a gaze of the user claim 3 , operation of a remote controller by the user claim 3 , or touch of the user through the flat display means including a touchscreen function.6. The display device according to claim 3 , wherein the controller is configured to select the specific image object from among ...

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Номер записи: 78
09-05-2019 дата публикации

METHOD OF COMPUTING A HOLOGRAM FOR RECONSTRUCTING AN OBJECT USING A DISPLAY DEVICE

Номер: US20190137933A1
Автор: SCHWERDTNER Armin
Принадлежит:

A method of computing a hologram for reconstructing an object using a display device. The display device enables a holographic reconstruction of the object. The display device includes a light source and an optical system to illuminate a hologram-bearing medium being encodable with the hologram. The method includes the steps of: (a) computing the hologram by determining the wavefronts at an approximate observer eye position that would be generated by a real version of the object to be reconstructed; and (b) encoding the computed hologram in the hologram-bearing medium. 1. A display device for reconstructing a three dimensional scene , the display device comprising:an optical system;at least one light source; anda hologram-bearing medium;the at least one light source and the optical system are adapted to illuminate the hologram-bearing medium being encodable with a hologram, (a) encoded with information for that single point in the reconstructed three dimensional scene;', '(b) the only region in the hologram encoded with information for that single point; and', '(c) restricted in size to form a portion of the entire hologram, the size being such that multiple reconstructions of that point caused by higher diffraction orders are not visible at the defined viewing position., 'the hologram comprises a region with information needed to reconstruct a single point of the three dimensional scene, the single point being visible from a defined viewing position, the region being2. A method for reconstructing a three dimensional scene using a display device , the display device comprising:an optical system;at least one light source; anda hologram-bearing medium;the at least one light source and the optical system are adapted to illuminate the hologram-bearing medium being encodable with a hologram, (a) encoded with information for that single point in the reconstructed three dimensional scene;', '(b) the only region in the hologram encoded with information for that single point ...

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Номер записи: 79
26-05-2016 дата публикации

Three dimensional user interface

Номер: US20160147308A1
Автор: Aviad Kaufman, Carmel Rotschild, Shaul Alexander GELMAN
Принадлежит: Real View Imaging Ltd

A method of providing a three dimensional (3D) user interface including receiving a user input at least partly from within an input space of the 3D user interface, the input space being associated with a display space of a 3D scene, evaluating the user input relative to the 3D scene, altering the 3D scene based on the user input. A system for providing a three dimensional (3D) user interface including a unit for displaying a 3D scene in a 3D display space, a unit for tracking 3D coordinates of an input object in a 3D input space, a computer for receiving the coordinates of the input object in the 3D input space, and translating the coordinates of the input object in the 3D input space to a user input, and altering the display of the 3D scene based on the user input. Related apparatus and methods are also described.

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Номер записи: 80
24-05-2018 дата публикации

HOLOGRAM GENERATING METHOD AND HOLOGRAM GENERATING APPARATUS

Номер: US20180143588A1
Автор: Kim Hak Gu, LEE Jin-sung, MIN Jong-sul, RO YongMan
Принадлежит:

A hologram generating apparatus is provided. The apparatus includes a hologram signal generating unit configured to, based on light projected on at least some points corresponding to an object, generate a hologram signal corresponding to the at least some points on at least one two-dimensional plane, a processor configured to calculate a sparsity corresponding to the two-dimensional plane based on the hologram signal, and to calculate a fringe pattern based on at least some of the hologram signal, and a pattern writing unit configured to record the fringe pattern on a computer-generated holography (CGH) plane, wherein the processor is further configured to repeatedly calculate a fringe pattern until a number of dominant signals of the calculated fringe pattern coincides with a predetermined threshold value determined based on the sparsity. 1. A method of generating a digital hologram of an object using a point cloud method , the method comprising:projecting light to a plurality of points corresponding to the object;generating a hologram signal corresponding to the plurality of points, the hologram signal being generated on at least one two-dimensional plane, the generating being based on the projected light;calculating a sparsity corresponding to one of the at least one two-dimensional plane based on the hologram signal;calculating a fringe pattern based on at least a portion of the hologram signal; andrecording the fringe pattern on a computer-generated holography (CGH) plane,wherein the calculating the fringe pattern comprises repeatedly calculating the fringe pattern until a number of dominant signals of the calculated fringe pattern is greater than or equal to a predetermined threshold value determined based on the sparsity.2. The method as claimed in claim 1 , wherein the generating the hologram signal comprises:dividing the object into a plurality of depth layers; andgenerating the hologram signal corresponding to a plurality of points, multiple sets of the ...

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Номер записи: 81
24-05-2018 дата публикации

A METHOD FOR DIGITALLY GENERATING A HOLOGRAM, RELATED DEVICE AND COMPUTER PROGRAM

Номер: US20180143589A1
Автор: Cozot Remi, GILLES Antonin, Gioia Patrick, Morin Luce
Принадлежит:

A method for digitally generating a hologram plane from a three-dimensional scene, cut into a plurality of planes parallel to the hologram plane. The method includes for a current plane: counting a number of points of the non-zero amplitude scene; choosing a first or second technique for propagating a light wave emitted by the current plane as a function of a number of points of non-zero amplitude included in the current plane and with a preset threshold value, the first, point-based technique calculating the propagation of a sum of light waves emitted by point sources constituted by the points of the scene portion of a non-zero amplitude of the current plane on a following plane, and the second, field-based technique, globally calculating a light wave emitted by the scene portion situated in the current plane on a given plane; and processing the current plane according to the chosen propagation technique. 1. A method comprising:digitally generating a hologram in a hologram plane from a three-dimensional scene comprising the following steps performed by a digital processing device:a step of cutting said scene into a plurality of planes parallel to the hologram plane; counting a number of points of non-zero amplitude of the scene in the current plane;', 'choosing a first or a second technique for propagating a light wave emitted by the current plane as a function of a number of points of non-zero amplitude of the scene portion comprised in the current plane and with a preset threshold value, the first technique, called a point-based technique calculates propagation of a sum of light waves emitted by point sources constituted by the points of the scene portion of a non-zero amplitude of the current plane on a following plane, the second technique, called a field-based technique, calculates globally propagation of a light field emitted by the scene portion comprised in the current plane on a following plane, the first technique being chosen if the number of points is ...

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Номер записи: 82
02-06-2016 дата публикации

DISTANCE ADAPTIVE HOLOGRAPHIC DISPLAYING METHOD AND DEVICE BASED ON EYEBALL TRACKING

Номер: US20160154458A1
Автор: Gao Wei, Liu Meihong, XU WANLIANG
Принадлежит:

A distance adaptive holographic displaying method and device based on eyeball tracking are disclosed. The method includes: detecting a human face of a user and acquiring positions of eyes of the user, wherein the positions of the eyes of the user comprise a distance between the eyes and a displaying screen; adjusting the size of an object in a holographic scene along a z-axis direction in the holographic three-dimensional display according to the distance, and displaying the object in the displaying screen; adjusting an emergent direction of the light emitted by the displaying screen to the direction of the left eye and the right eye of the eyes so that the different individual holographic three-dimensional images of the left eye and the right eye are imaged into the left eye and the right eye respectively; and tracking the change of the positions of the eyes, and repeating the aforesaid steps to dynamically adjust viewpoints and the displayed content. The present disclosure can adapt to different groups of people at different distances and conform to the visual principle of human beings, thereby improving user experiences. 1. A distance adaptive holographic displaying method based on eyeball tracking , comprising the following steps of:detecting a human face of a user and acquiring positions of eyes of the user, wherein the positions of the eyes of the user comprise a distance between the eyes and a displaying screen;adjusting the size of an object in a holographic scene along a z-axis direction in the holographic three-dimensional display according to the distance, adjusting viewpoints of different individual holographic three-dimensional images that need to be projected into a left eye and a right eye of the eyes according to the size of the object in the holographic scene along the z-axis direction, and displaying the viewpoints in the displaying screen;adjusting an emergent direction of the light emitted by the displaying screen to the direction of the left eye ...

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Номер записи: 83
07-05-2020 дата публикации

HOLOGRAPHIC IMAGE REPLICATION

Номер: US20200142354A1
Автор: Dhawan Vinay, Gupta Deepak, Saraya Siddharth
Принадлежит:

A method and system for improving holographic image simulation and replication is provided. The method includes receiving data identifying a primary location and at least one secondary location associated with a holographic replication event. First video data describing first objects at the primary location is received and a first holographic simulation presentation comprising virtual representations of the first objects is generated. Second video data describing second objects at the at least one secondary location is received and a second holographic simulation presentation comprising virtual representations of the second objects is generated. The second holographic simulation presentation is projected such that said virtual representations of the second objects interact with the first objects at the primary location. The first holographic simulation presentation is projected such that said virtual representations of the first objects interact with the second objects at the at least one secondary location. 1. A holographic image simulation and replication improvement method comprising:receiving, by a processor of a holographic image generation device, data identifying a primary location and at least one secondary location associated with a holographic replication event;continuously receiving in real time, by said processor via a plurality of sensors at said primary location, first video data describing first objects at said primary location;continuously generating in real time, by said processor based on said first video data, a first holographic simulation presentation comprising virtual representations of said first objects with respect to said primary location;continuously receiving in real time, by said processor via a plurality of sensors at said at least one secondary location, second video data describing second objects at said at least one secondary location;continuously generating in real time, by said processor based on said second video data, a second ...

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Номер записи: 84
07-05-2020 дата публикации

METHOD FOR DIGITALLY GENERATING A HOLOGRAM, DEVICE, TERMINAL DEVICE, ASSOCIATED SYSTEM AND COMPUTER PROGRAM

Номер: US20200142356A1
Автор: GILLES Antonin, Gioia Patrick
Принадлежит:

Disclosed is a method for digitally generating a hologram in a screen plane of a hologram display device, including: obtaining intensity and depth maps of the scene corresponding to user viewpoint; projecting the points of the intensity map on planes parallel to the screen plane in a reference frame of the screen, one plane associated with one depth value of between minimum and maximum values of the depth map, a point of the intensity map projected on the plane of the planes associated with the depth value of the point in the depth map; compensating for distortion by modifying the planes of the scene, a point of one plane, called image point of an object point by conjugation of the convergent lens, being replaced by the object point; from the modified planes, propagating a complex sampled light wave to the screen plane and summation of the propagated light waves. 1. A method for digitally generating a hologram from a three-dimensional scene in a plane , called screen plane , of a screen of a hologram display device , said screen being illuminated by a plane coherent light wave , a convergent lens being arranged between the screen and said user , such that the hologram is formed in the plane of the screen , said method comprising:obtaining an intensity map and a depth map of the scene corresponding to the viewpoint of the user;projecting according to an inverted perspective projection model of a virtual camera co-located with the user, the points of the intensity map on a plurality of planes parallel to the screen plane in a reference frame of the screen, one said plane being associated with one depth value of between a minimum value and a maximum value of the depth map, a point of the intensity map being projected on the plane of the plurality of planes associated with the depth value of said point in the depth map;compensating for a distortion induced by the convergent lens on the hologram by modifying the plurality of planes of the scene, a point of one said plane ...

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Номер записи: 85
01-06-2017 дата публикации

LENS-FREE TOMOGRAPHIC IMAGING DEVICES AND METHODS

Номер: US20170153106A1
Автор: Bishara Waheb, Isikman Serhan O., Ozcan Aydogan
Принадлежит: The Regents of the University of California

A system for three dimensional imaging of an object contained within a sample includes an image sensor, a sample holder configured to hold the sample, the sample holder disposed adjacent to the image sensor, and an illumination source comprising partially coherent light. The illumination source is configured to illuminate the sample through at least one of an aperture, fiber-optic cable, or optical waveguide interposed between the illumination source and the sample holder, wherein the illumination source is configured to illuminate the sample through a plurality of different angles. 135-. (canceled)36. A lens-free system for three dimensional imaging of an object contained within a sample comprising:a stationary image sensor;{'sub': '2', 'a sample holder configured to hold the sample, the sample holder disposed adjacent to the image sensor at a distance of z;'}{'sub': 1', '2', '2', '1, 'an illumination source comprising partially coherent light or coherent light and located a distance zfrom the sample holder and wherein the sample is disposed adjacent to the image sensor at a distance z, wherein z< Подробнее

Номер записи: 86
17-06-2021 дата публикации

Device and method for iterative phase recovery based on pixel super-resolved on-chip holography

Номер: US20210181673A1
Автор: Alborz Feizi, Alon Grinbaum, Aydogan Ozcan, Wei Luo, Yibo Zhang
Принадлежит: UNIVERSITY OF CALIFORNIA

A method for lens-free imaging of a sample or objects within the sample uses multi-height iterative phase retrieval and rotational field transformations to perform wide FOV imaging of pathology samples with clinically comparable image quality to a benchtop lens-based microscope. The solution of the transport-of-intensity (TIE) equation is used as an initial guess in the phase recovery process to speed the image recovery process. The holographically reconstructed image can be digitally focused at any depth within the object FOV (after image capture) without the need for any focus adjustment, and is also digitally corrected for artifacts arising from uncontrolled tilting and height variations between the sample and sensor planes. In an alternative embodiment, a synthetic aperture approach is used with multi-angle iterative phase retrieval to perform wide FOV imaging of pathology samples and increase the effective numerical aperture of the image.

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Номер записи: 87
17-06-2021 дата публикации

SYSTEM AND METHOD FOR NEAR-EYE LIGHT FIELD RENDERING FOR WIDE FIELD OF VIEW INTERACTIVE THREE-DIMENSIONAL COMPUTER GRAPHICS

Номер: US20210181674A1
Автор: Huang Fu-Chung, Lopes Ward, Shi Liang
Принадлежит:

A method for rendering a light field comprises projecting rays from a viewpoint positioned at a first side of a spatial light modulator (SLM) to a clipping plane positioned at an opposing side of the SLM to form an elemental view frustum within a three-dimensional scene and rendering objects within the elemental view frustum to generate components of a first elemental image for the first elemental region. The SLM may include a tiled array of non-overlapping elemental regions and a top edge and a bottom edge of a first elemental region of the non-overlapping elemental regions are intersected by the rays to form the elemental view frustum. Furthermore, the light field may include the first elemental image and additional elemental images corresponding to the array of elemental regions and each one of the additional elemental images is rendered using an additional elemental view frustum. 1. A method for rendering a light field that comprises a plurality of elemental images arranged in a grid , the method comprising: projecting rays from a viewpoint positioned at a lateral offset from a first side of a spatial light modulator (SLM) to form an elemental view frustum within a three-dimensional scene; and', 'rendering objects within the elemental view frustum to generate components of the elemental image,', {'sub': h', 'h, 'wherein each elemental image of the plurality of elemental images corresponds to a holographic element (hogel) associated with one or more picture elements (pixels) of the SLM, and wherein the SLM is divided into a plurality of hogels having size wand the lateral offset is calculated based on the size w.'}], 'generating, by a processor, for each elemental image of the plurality of elemental images, components of the light field corresponding to that elemental image by2. The method of claim 1 , wherein the rendering comprises claim 1 , for each pixel of the hogel corresponding to the elemental image:projecting second rays from the pixel to a clipping ...

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Номер записи: 88
09-06-2016 дата публикации

A system and method for displaying and capturing holographic true 3d images

Номер: US20160161914A1
Автор: Levent Onural
Принадлежит: Individual

The present invention relates to a system and method for displaying and capturing holographic true 3D images. The system comprises elements which may form both a wide viewing angle holographic true 3D display and a holographic true 3D video camera. The system mainly comprises a light source, a spatial light modulator or an electro-optical capturing device in different embodiments of the invention, a curved mirror, a computer and a beam splitter and opaque mask in some embodiments of the invention.

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Номер записи: 89
14-05-2020 дата публикации

HOLOGRAPHIC DISPLAY APPARATUS

Номер: US20200150588A1
Автор: Lee Hongseok, NA Byunghoon, Seo Wontaek
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided is a holographic display apparatus. A holographic image display apparatus includes: a light source configured to emit light, the light source including a plurality of vertical-cavity surface-emitting lasers (VCSELs) that are spaced apart from one another; a spatial light modulator configured to, based on a hologram data signal, modulate the light emitted by the light source; and a focusing optical system configured to focus an image formed by the spatial light modulator using a Maxwellian view method. 1. A holographic image display apparatus comprising:a light source configured to emit light, the light source comprising a plurality of vertical-cavity surface-emitting lasers (VCSELs) that are spaced apart from one another;a spatial light modulator configured to, based on a hologram data signal, modulate the light emitted by the light source; anda focusing optical system configured to focus an image formed by the spatial light modulator using a Maxwellian view method.2. The holographic display apparatus of claim 1 , wherein the light source is configured to output power of 20 mW or more.3. The holographic display apparatus of claim 1 , wherein at least one VCSEL of the plurality of VCSELs is configured to output power in a range of 5 μW to 5 mW.4. The holographic display apparatus of claim 1 , wherein the light source has a cross-section in a shape of a circle with a diameter of 500 μm or less.5. The holographic display apparatus of claim 1 , wherein at least one VCSEL of the plurality of VCSELs has a cross-section in a shape of a circle with a diameter of 5 μm or more and 50 μm or less.6. The holographic display apparatus of claim 1 , wherein at least some VCSELs of the plurality of VCSELs are arranged in at least one of a polygon shape claim 1 , an ellipse shape claim 1 , a circle shape claim 1 , and a shape of concentric circles.7. The holographic display apparatus of claim 1 , wherein each VCSEL of the plurality of VCSELs is configured to emit light ...

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Номер записи: 90
24-06-2021 дата публикации

LENSFREE METHOD FOR IMAGING BIOLOGICAL SAMPLES IN THREE DIMENSIONS

Номер: US20210191316A1
Автор: Braeken Dries, Lagae Liesbet, LUO Zhenxiang, STAHL Richard, YURT Abdulkadir
Принадлежит:

A method for three-dimensional imaging of a sample () comprises: receiving () interference patterns () acquired using light-detecting elements (), wherein each interference pattern () is formed by scattered light from the sample () and non-scattered light from a light source (), wherein the interference patterns () are acquired using different angles between the sample () and the light source (); performing digital holographic reconstruction applying an iterative algorithm to change a three-dimensional scattering potential of the sample () to improve a difference between the received interference patterns () and predicted interference patterns based on the three-dimensional scattering potential; wherein the iterative algorithm reduces a sum of a data fidelity term and a non-differentiable regularization term and wherein the iterative algorithm includes a forward-backward splitting method alternating between forward gradient descent () on the data fidelity term and backward gradient descent () on the regularization term. 1. A method for three-dimensional imaging of a sample , said method comprising:receiving a plurality of interference patterns acquired using light-detecting elements for detecting incident light, wherein each interference pattern is formed by scattered light from the sample and non-scattered light from a light source, wherein the interference patterns are acquired using different angles between the sample and the light source;performing digital holographic reconstruction on the received interference patterns, wherein the digital holographic reconstruction applies an iterative algorithm to change a three-dimensional scattering potential of the sample to improve a difference between the received interference patterns and predicted interference patterns based on the three-dimensional scattering potential;wherein the iterative algorithm reduces a sum of a data fidelity term and a non-differentiable regularization term and wherein the iterative algorithm ...

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Номер записи: 91
24-06-2021 дата публикации

DISPLAY, TRANSFER FOIL, ADHESIVE LABEL, AND LABELED ARTICLE

Номер: US20210191317A1
Автор: KOTEGAWA Tomoko, MASUNAGA Yuko, MIKAMI Mayo
Принадлежит: TOPPAN PRINTING CO., LTD.

A display including a relief structure forming layer having a major surface with a relief type diffractive structure that displays a three-dimensional object as a diffraction image; and a reflective layer at least partially covering a region of the major surface where the diffractive structure is provided. A portion of the diffractive structure in a first region includes first and second linear parts forming a first lattice, and first parts arranged in respective gaps of the first lattice. The first and second linear parts each having a solid line shape form a first pattern. A portion of the diffractive structure in a second region includes third and fourth linear parts alternately arranged in the width direction thereof. The third linear parts each having a dashed line shape and the fourth linear parts each having a dashed or dotted line shape form a second pattern. 1. A display , comprising:a relief structure forming layer having a major surface which is provided with a relief type diffractive structure that displays an image of a three-dimensional object as a diffraction image; anda reflective layer at least partially covering a region of the major surface where the diffractive structure is provided, whereinthe region includes a first region and a second region;a portion of the diffractive structure in the first region includes a plurality of first linear parts arrayed in a width direction thereof, a plurality of second linear parts arrayed in a width direction thereof and intersecting the plurality of first linear parts to form a first lattice together with the plurality of first linear parts, and a plurality of first parts arranged in a plurality of respective gaps in the first lattice, the plurality of first and second linear parts each having a solid line shape and forming a first pattern; anda portion of the diffractive structure in the second region includes a plurality of third linear parts and a plurality of fourth linear parts alternately arranged in a ...

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Номер записи: 92
30-05-2019 дата публикации

APPARATUS AND METHOD FOR GENERATING HOLOGRAM BASED ON HUMAN VISUAL SYSTEM MODELING

Номер: US20190163133A1
Автор: KIM Tae One
Принадлежит: Electronics and Telecommunications Research Institute

In the present invention, by providing an apparatus for generating a hologram based on human visual system modeling, including a lens configured to focus light emitted from a three-dimensional (3D) object, a sensor configured to detect the light, an object information obtaining unit configured to obtain object information of the 3D object based on information of the lens and a confusion circle size threshold value corresponding to information of the sensor, and a hologram image generating unit configured to generate a hologram image for the 3D object based on the object information, it is possible to provide a method of generating a hologram based on a human visual system capable of generating image information of a three-dimensional object faster and capable of generating a higher-quality hologram image. 1. An apparatus for generating a hologram based on human visual system modeling , comprising:a lens configured to focus light emitted from a three-dimensional (3D) object;a sensor configured to detect the light;an object information obtaining unit configured to obtain object information of the 3D object based on information of the lens and a confusion circle size threshold value corresponding to information of the sensor; anda hologram image generating unit configured to generate a hologram image for the 3D object based on the object information.2. The apparatus of claim 1 , wherein the object information obtaining unit determines positions of a plurality of planes passing through the three-dimensional object based on the confusion circle size threshold value claim 1 , and obtains the object information of each of the plurality of planes.3. The apparatus of claim 2 , wherein the object information obtaining unit determines a position of a first plane based on the position of the 3D object claim 2 , determines a first focal length of a lens corresponding to the position of the first plane claim 2 , and determines a position of at least one second plane that is ...

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Номер записи: 93
25-06-2015 дата публикации

Digital holography three-dimensional imaging apparatus and digital holography three-dimensional imaging method

Номер: US20150176966A1
Автор: Akira Eguchi
Принадлежит: Canon Inc

The imaging apparatus includes an optical system dividing light into object and reference beams and causing the object beam and the reference beam to interfere with each other to form interference fringes on an image sensor. A processor performs multiple imaging processes for the interference fringes with different incident angles of the object beam to an object, a first process to acquire a transmitted wavefront for each incident angle and a second process to calculate a three-dimensional refractive index distribution from the transmitted wavefronts. The apparatus includes a modulator changing a phase distribution of light in any one of an optical path from a light source to a dividing element, a reference beam path and an optical path from a combining element to the image sensor and causes the modulator to change the phase distribution in at least one of the multiple imaging processes.

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Номер записи: 94
01-07-2021 дата публикации

A DUAL-IMAGE PROJECTION APPARATUS, A HEAD-UP DISPLAY APPARATUS, AND A VEHICLE VISION AUXILIARY SYSTEM

Номер: US20210199963A1
Автор: LI Dianmeng
Принадлежит: BOE Technology Group Co., Ltd.

The present application discloses a dual-image projection apparatus. The apparatus includes a light source and a spatial light modulator including a first modulation module and a second nodulation module. Additionally, the apparatus includes a Fourier lens and the spatial light modulator is positioned at a front focal plane of the Fourier lens. The first modulation module modulates light from the light source through the Fourier lens to reproduce a first 2D holographic image and the second modulation module modulates the light through the Fourier lens to reproduce a plurality of second 2D holographic images. The apparatus further includes a first light-diffusing film to display the first 2D holographic image to produce a first virtual image and a plurality of second light-diffusing films to respectively display the plurality of second 2D holographic images sequentially in a rate to produce a 3D virtual image. 1. A dual-image projection apparatus comprising:a spatial light modulator including a first modulation module and a second nodulation module respectively receiving light beams from a light source;a Fourier lens disposed downstream of the light beams such that the spatial light modulator is positioned at a front focal plane of the Fourier lens;a first light-diffusing film;a plurality of second light-diffusing films;wherein the first modulation module is configured to load a first phase kinoform to modulate the light beams to have a first output light beam passing through the Fourier lens to reproduce a first 2D holographic image at a first back focal plane based on the first phase kinoform, the second modulation module is configured to load a plurality of second phase kinoforms one-by-one with a switch rate to modulate the light beams to have a second output light beam passing through the Fourier lens to respectively reproduce a plurality of second 2D holographic images with the switch rate respectively at a plurality of second back focal planes based on the ...

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Номер записи: 95
01-07-2021 дата публикации

Method and apparatus for generating hologram with wide viewing angle

Номер: US20210200152A1
Автор: Seunghyup Shin
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A method and apparatus for generating a hologram with a wide viewing angle is disclosed. The method includes generating a elemental complex hologram by applying oblique projection to three-dimensional (3D) information of an object based on a viewing direction, and generating a final hologram by superposing a plurality of elemental complex holograms generated based on different viewing directions.

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Номер записи: 96
21-06-2018 дата публикации

BACKLIGHT UNIT AND HOLOGRAPHIC DISPLAY DEVICE INCLUDING THE SAME

Номер: US20180173057A1
Автор: An Jungkwuen, Choi Chilsung, KIM Sunil, Lee Hongseok, SONG Hoon, SUNG Geeyoung
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided is a backlight unit having high optical efficiency and a holographic display device including the backlight unit. The backlight unit includes a light source unit configured to provide a light beam, a first beam expander configured to mix the light beam provided from the light source unit, expand the light beam in a first direction, and output the mixed and expanded light beam as white light, and a second beam expander configured to expand the white light output from the first beam expander in a second direction perpendicular to the first direction and output the expanded white light as surface light. 1. A backlight unit comprising:a light source configured to provide a light beam; mix the light beam provided from the light source,', 'expand the light beam in a first direction, and', 'output the mixed and expanded light beam as white light; and, 'a first beam expander configured to expand the white light emitted from the first beam expander in a second direction perpendicular to the first direction, and', 'output the expanded white light as surface light., 'a second beam expander configured to2. The backlight unit of claim 1 , wherein the first beam expander comprises a grating element comprising a plurality of grooves arranged along a third direction inclined with respect to the first direction claim 1 , each of the plurality of grooves having a wedge shape.3. The backlight unit of claim 2 , wherein each of the plurality of grooves has a prism shape having a height in the second direction.4. The backlight unit of claim 2 , wherein at least one of an interval between a first groove and a second groove claim 2 , among the plurality of grooves claim 2 , and an angle of the wedge shape of the first groove or the second groove claim 2 , is set such that light diffracted in an adjacent groove toward a fourth direction perpendicular to both the first direction and the second direction interfere constructively.5. The backlight unit of claim 2 , further comprising a ...

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Номер записи: 97
21-06-2018 дата публикации

Optical sectioning using a phase pinhole

Номер: US20180173160A1
Автор: Barak Katz, Joseph Rosen, Roy Kelner
Принадлежит: BG Negev Technologies and Applications Ltd

The present invention relates to an arrangement for the generation of images of optical sections of a three-dimensional (3D) volume in space such as an object, scene, or target, comprising: an illumination unit, an optical arrangement for the imaging of the object onto at least one spatially resolving detector, a scanning mechanism for scanning the entire object and a signal processing unit for the implementation of a method for digital reconstruction of a three-dimensional representation of the object from images of said object as obtained by said detector (which may be in a form of a hologram), wherein the optical arrangement includes a diffractive optical element (herein a phase pinhole), realized using a Spatial Light Modulator (SLM) configured to mimic an actual physical pinhole, while allowing the formation of a three-dimensional representation for a specific point of interest in said object, such that for each scanning position a single hologram or an image is recorded.

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Номер записи: 98
22-06-2017 дата публикации

METHOD AND APPARATUS FOR GENERATING BINARY HOLOGRAM

Номер: US20170176930A1
Автор: CHANG Eun Young
Принадлежит:

Provided is a method and apparatus for generating a binary hologram. More particularly, provided is a method and apparatus that may decrease or, alternatively, minimize quality degradation of a binary hologram by employing a silhouette mask of a target object to reduce or, alternatively, minimize background noise occurring around the target object to be reproduced when generating the binary hologram. 1. A method of generating a binary hologram , the method comprising:receiving data information used to construct a target object in a three-dimensional (3D) shape to be reproduced as a hologram;generating a silhouette mask of the target object based on the data information;generating a hologram having a complex value or a real number value in association with the target object based on the data information; andbinarizing the hologram having the complex value or the real number value based on the silhouette mask of the target object.2. The method of claim 1 , wherein the data information includes depth information and color information of the target object between which a one-to-one correspondence mapping is established claim 1 , andthe depth information is quantized to 256 levels (8 bits).3. The method of claim 1 , wherein the hologram is visualized as an image having a resolution of M×N that satisfies a spatial resolution of a spatial light modulator (SLM) and represented based on 256 levels (8 bits).4. The method of claim 1 , wherein the binarizing comprises:performing a first quantization process of allocating 0 or 1 to each of pixels that constitute a plane of the hologram;applying the silhouette mask to the hologram quantized to 0 or 1; andperforming a second quantization process based on a distance between the silhouette mask applied to the quantized hologram and each pixel of the plane.5. The method of claim 4 , wherein the performing of the first quantization process comprises allocating 0 or 1 to each pixel of the plane based on a threshold thereof.6. The ...

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Номер записи: 99
06-06-2019 дата публикации

ON-AXIS AND OFF-AXIS DIGITAL HOLOGRAM GENERATING DEVICE AND METHOD

Номер: US20190171162A1
Автор: KIM Byung Mok, Lee Sang Jin, Park Seong Jin, SUNG Mal Eum
Принадлежит: NAEILHAE, CO. LTD.

Provided are on-axis and off-axis digital hologram generating device and method. 1. An on-axis and off-axis digital hologram generating device , the device comprising:an object phase generator configured to access a phase file of an object stored in a storage device and generate object phase information from the phase file of the object;a digital object light generator configured to generate digital object light information based on a light property of object light input by a user and the object phase information generated by the object phase generator;a digital reference light generator configured to generate digital reference light information based on a light property of reference light input by the user; anda digital hologram generator configured to generate a digital hologram based on hologram property information input by the user, the digital object light information generated by the digital object light generator, and the digital reference light information generated by the digital reference light generator.2. The device of claim 1 , wherein the object phase generator comprises:an object phase file position generator configured to select the phase file of the object stored in the storage device;an object phase file converter configured to receive the phase file of the object selected by the object phase file position selector and converting the received phase file of the object into phase information data; andan object phase information generator configured to receive the phase information data, obtained by the converting performed by the object phase file converter, and generate object phase information.3. The device of claim 1 , wherein the digital object light generator comprises:an object phase information converter configured to convert the object phase information obtained from the object phase generator into object phase information data that may generate the digital object light; anda digital object light and information generator configured to ...

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Номер записи: 100