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 Holographic high power illumination distribution system patent thumbnailnew patent Holographic high power illumination distribution system
An illumination distribution system for distributing high power illumination to a set of projectors. The system includes a display element, such as a spatial light modulator (slm), receiving light from a laser.
Disney Enterprises, Inc.


 Laminated body having hologram patent thumbnailnew patent Laminated body having hologram
A card 1 includes: a card substrate 10; a transparent hologram layer 20 on a part of the substrate 10; and a surface layer 30 comprising a print layer 40 on the substrate 10 and the layer 20, is formed by a transparent material, and is printed with a color similar to the upper surface of the substrate 10. When a card surface 1a is viewed from the normal line, the layer 40 has the same color shading compared to the upper surface of the substrate 10, at the edge portion 22 of the layer 20.
Dai Nippon Printing Co., Ltd.


 Hologram recording and reproducing apparatus patent thumbnailHologram recording and reproducing apparatus
A disk conveyance mechanism for a hologram recording and reproducing apparatus includes a first conveyance mechanism for conveying a disk medium 2 to a position where a spindle motor 4 is situated with the disk medium 2 loaded onto a tray 6, a second conveyance mechanism in which the spindle motor 4 is held and moved in the rotational axis direction of the spindle motor 4 to take out the disk medium 2 from the tray 6 and load the disk medium 2 onto spindle motor 4, a third conveyance mechanism for conveying the disk medium 2 to the position where recording and reproducing are performed by the pickup 1 with the disk medium 2 loaded onto the spindle motor 4. The first and third conveyance mechanisms convey the disk medium 2 in a direction substantially parallel to the surface of the medium..
Hitachi-lg Data Storage, Inc.


 Illumination device, projection apparatus and projection-type image display apparatus patent thumbnailIllumination device, projection apparatus and projection-type image display apparatus
An optical device including a hologram recording medium that can reproduce an image of a reference member and an irradiation unit that emits a coherent light beam to the optical device. The irradiation unit includes a light source for emitting a coherent light beam and a scanning device capable of adjusting a reflection angle of the coherent light beam emitted from the light source and that makes a reflected coherent light beam scan the hologram recording medium.
Dai Nippon Printing Co., Ltd.


 Projector provided with hologram screen patent thumbnailProjector provided with hologram screen
The purpose of the present invention is to project a hologram screen to one of a variety of projectors by adjusting the hologram screen to an image size of the one of the variety of projectors so as to approximately correspond to each other so that the hologram screen is formed in front of the one of the variety of projectors, and a hologram projector is separately turned on or off for general use.. .

 Projection type image display apparatus patent thumbnailProjection type image display apparatus
A laser beam (l50) generated by a laser light source (50) is reflected by a light beam scanning device (60) and irradiated onto a hologram recording medium (45). On the hologram recording medium (45), an image (35) of a scatter plate is recorded as a hologram by using reference light that converges on a scanning origin (b).
Dai Nippon Printing Co., Ltd.


 User-based context sensitive hologram reaction patent thumbnailUser-based context sensitive hologram reaction
A system and method are disclosed for displaying virtual content. When a user is settled in a given geographic area, a full version of the content may be displayed at user-defined or processor-defined location.

 Method and  forming a visible image in space patent thumbnailMethod and forming a visible image in space
A device that creates visible light in space comprises of a light source and optics system that result in irradiated visible spectrum light rays with a low intensity such that the light is not visible by the normal observer. Multiple rays of visible-spectrum low-intensity non-visible light intersect.

 Holographic microscope and data processing  high-resolution hologram image patent thumbnailHolographic microscope and data processing high-resolution hologram image
The present invention can realize both a transmission type and a reflection type, and provides a holographic microscope which can exceed the resolution of the conventional optical microscope, a hologram data acquisition method for a high-resolution image, and a high-resolution hologram image reconstruction method. In-line spherical wave reference light (l) is recorded in a hologram (ilr) using spherical wave reference light (r), and an object light (oj) and an illumination light (qj) are recorded in a hologram (ijoqr) using a spherical wave reference light (r) by illuminating the object with an illumination light (qj, j=1, .
cj


 Hologram recording and reproducing apparatus patent thumbnailHologram recording and reproducing apparatus
A disk conveyance unit 3 conveys the disk medium 2 to a position where recording and reproducing are performed by the pickup 1 with the spindle motor 4 held. The disk conveyance unit 3 includes first movement mechanisms 22 and 24 for moving a first conveyance frame 30 with respect to fixed frames 10 and 20 and second movement mechanisms 34 and 36 for moving a second conveyance frame 40 holding a spindle motor 4 with respect to the first conveyance frame 30.
Hitachi-lg Data Storage, Inc.


Microscope, method and computer program for obtaining quantitative phase images by means of digital holographic microscopy


A microscope, method and computer program for obtaining quantitative phase images by digital holographic microscopy. The microscope includes: a coherent light source (1) and a beam splitter (3) for generating an object beam (lo) for illuminating a sample, and a reference beam (lr); an optical system with a main optical path making up a telecentric afocal system, and a reference optical path; and recording means (12) recording a hologram of said sample in the image plane of the optical system.
Universidad Nacional De Colombia


Incoherent fluorescence digital holographic microscopy using transmission liquid crystal lens


A new optical arrangement that creates high efficiency, high quality fresnel incoherent correlation holography (finch) holograms using transmission liquid crystal grin (tlcgrin) diffractive lenses has been invented. This is in contrast to the universal practice in the field of using a reflective spatial light modulator (slm) to separate sample and reference beams.

Method for measuring three-dimensional profile of specular object by fringe projection


A method using fringe projection to describe the three-dimensional profile of a specular object is presented and has steps of: providing a diffraction grating formed by exposing and developing a hologram and having at least two sets of interference fringes; guiding a conjugate of the reference light generated from a conjugate light source to pass through the diffraction grating, in order to generate a real image with a long depth of field, a wide convergent angle, and a sinusoidal distribution light intensity; projecting this real image onto an inspected specular object; using an image capture device to capture the intensity distribution of the real image on the inspected specular object so as to obtain an image signal; and using an image processor to analyze the image signal so as to identify the profile of the inspected specular object.. .
National Sun Yat-sen University


Hologram reproducing apparatus and hologram reproducing method


The purpose of the present invention is to provide a hologram reproducing apparatus and a hologram reproducing method, which are suitable for reproducing hologram. The purpose can be achieved by means of a hologram reproducing apparatus, which reproduces information signals by irradiating an optical information recording medium with reference light, and a hologram reproducing method for the hologram reproducing apparatus.
Hitachi Consumer Electronics Co., Ltd.


Hologram module, display device having the same and wearing device having the same


A hologram module includes a phosphor layer and a rainbow hologram sheet. The phosphor layer has a phosphor array structure.
Wistron Corp.


System and generating occlusion-culled hologram at high speed using omnidirectional angular spectrum


A system and method for generating an occlusion-culled hologram at a high speed using an omnidirectional angular spectrum in which it is possible to uniformly maintain a hologram generation speed regardless of the sampling number of an object and increase the three-dimensional (3d) effect of a hologram image. The system includes a omnidirectional angular spectrum generation module configured to receive geometric information of an object and generate an occlusion-culled omnidirectional angular spectrum based on the received geometric information, and a hologram generation module configured to generate a hologram based on the omnidirectional angular spectrum provided from the omnidirectional angular spectrum generation module and the positional information and the directional information of a hologram provided from the outside..
Electronics And Telecommunications Research Institute


Illuminator for multi-focus confocal imaging and optimized filling of a spatial light modulator for microscopy


One exemplary aspect relates to an optical system for illuminating a multi-focus confocal imager. This new illuminator has benefits such as improved throughput and field flatness.
Intelligent Imaging Innovations, Inc.


Nonlinear optical dye, photorefractive material composition, photorefractive substrate and hologram recording medium


In the above general formula (1), each of x1, x2, x3 and x4 independently represents a hydrogen atom, an alkyl group having a carbon number of 1 to 6, a halogen atom, a hydroxyl group, a nitro group, a cyano group, or a methylsulfonyl group. In the present invention, it is preferred that each of x1, x2, x3 and x4 independently represents a hydrogen atom, an alkyl group having a carbon number of 1 to 6, or a halogen atom.

Method for manufacturing a tool plate for treating a printing substrate, tool plate and embossing die


A method for manufacturing a tool plate for treating a printing substrate includes pressing a master die having a surface structure and a tool plate blank coated with a cured layer against one another in a pressing nip, trapping a curable layer therebetween. As a consequence, the curable layer is applied to the cured layer of the blank and receives a negative of the surface structure in a molding process.
Heidelberger Druckmaschinen Ag


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Table-top type hologram projection apparatus using aspheric mirror


Provided is a hologram projection apparatus using an aspheric mirror, the apparatus including a spatial light modulator (slm), a first mirror, a motor, and a second mirror, wherein the first mirror is configured to reflect modulated light output by the slm, the motor is configured to rotate the first mirror, the second mirror is configured to reflect the modulated light reflected from the rotated first mirror, and the modulated light reflected from the second mirror, based on a degree of rotation of the first mirror, forms a consecutive viewing window in a horizontal direction.. .
Electronics And Telecommunications Research Institute


Hologram projection apparatus using risley prism


A hologram projection apparatus using risley prism is provided, the apparatus including a spatial light modulator (slm) configured to output light incident from a light source through modulation into a hologram image, a light deflector configured to deflect the light output by the slm according to a location of a pupil of a user, and a fixed-focus lens configured to project the hologram image on a focal plane using the deflected light.. .
Electronics And Telecommunications Research Institute


Method and correcting distortion of 3d hologram


Provided is a method and an apparatus for correcting a distortion of a three-dimensional (3d) hologram, in which the method is performed by the apparatus and includes generating a sliced two-dimensional (2d) section of a hologram by slicing the hologram while performing translation in an optical axis direction, obtaining a sharp sliced image of the hologram from a sequence of images of generated sliced 2d sections using a focusing function of a camera, and analyzing a distortion of the obtained sliced image, and using such a method and apparatus may enable correction of a distortion of a 3d hologram independently from a display structure.. .
Electronics And Telecommunications Research Institute


Sensor unit


A sensor unit (100) provided with a substrate (101), a plurality of light-receiving units (102) that are provided on the substrate (101) and detect light, and a diffraction grating layer (103) that is provided on the substrate (101) and the light-receiving units (102) and has at least two diffraction means for diffracting light of corresponding wavelengths and condensing the light onto the light-receiving units, wherein at least two of the diffraction means are composed from holograms formed on a first diffraction grating layer and at least a portion of the plurality of holograms formed on the first diffraction grating layer overlap at least partially with another adjacent hologram.. .
Nec Corporation


Holographic display device


Provided is a holographic display device. The holographic display device includes a light source unit configured to emit a light, and a spatial light modulator (slm) configured to modulate at least one of a phase and amplitude of the light emitted from the light source unit to output a hologram image, and including a plurality of pixel groups that are arranged in a first direction, wherein each of the plurality of pixel groups includes: first pixels arranged in a matrix x1×y1 and providing an image having a first wavelength, and second pixels adjacent to the first pixels in the first direction, arranged in a matrix x2×y2, and providing an image having a second wavelength that is different from the first wavelength..
Electronics And Telecommunications Research Institute


Three-dimensional thermal or photovoltaic solar panel with incorporated holography


The present invention relates to a solar panel with three-dimensional (3d) unitary structures or cavities that is made entirely of plastic materials and applicable to both a thermal solar panel and a photovoltaic solar module. The difference between both cases is that in the first case, the structure incorporates pipes (6) for a heat-carrying fluid, whereas in the second case it is provided with photovoltaic solar cells (8).
Instituto HologrÁfico Terrasun, S.l.


Hologram generation method and apparatus


Provided is a hologram generation method including receiving three-dimensional (3d) data information, determining a first projection position onto which the 3d data information is projected on a hologram plane corresponding to a first spatial light modulator (slm), and a second projection position onto which the 3d data information is projected on a hologram plane corresponding to a second slm, generating a first fresnel zone plate (fzp) pattern corresponding to the first projection position, and determining the first fzp pattern to be an fzp pattern corresponding to the second projection position.. .
Electronics And Telecommunications Research Institute


Method of producing collar stays from identification cards


The present invention comprises a method of using a punch for cutting one or more collar stays directly from an identification card. The punch includes a holding portion positioned on one side of the identification card and a die or blade portion aligned with the held identification card.
Pick Punch Llc


Hologram display controlling the same


Provided is a hologram display apparatus according to an exemplary embodiment of the present invention. The hologram display apparatus includes: a detector configured to detect a position of a viewer; and a spatial light modulation panel that modulates a light to display a hologram.

Data format for hologram, and holographic video system


A holographic image processing method and a holographic image display method are provided. The holographic image processing method performed by a holographic image processing apparatus may include acquiring a holographic image, encoding the holographic image by quantizing the holographic image to improve at least one of a temporal correlation, a spatial correlation, and a channel correlation of the acquired holographic image, and generating the encoded holographic image..

Projection device and projection-type video display device


An illumination device includes an optical element including a hologram recording medium capable of diffusing a coherent light beam, the hologram recording medium comprising a plurality of regions, each region diffusing a coherent light beam to an illuminated region corresponding to that region, and an irradiation device configured to irradiate the optical element with the coherent light beam so as to allow the coherent light beam to scan the hologram recording medium. The coherent light beam incident to a position existing in each region of the hologram recording medium is diffused to an entire region of the illuminated region corresponding to the region in order to illuminate the entire region of the illuminated region..

Scalable and tileable holographic displays


A holographic display system for generating a super hologram with full parallax in different fields of view in the horizontal and vertical directions. The display system includes assemblies or subsystems each adapted to combine holographic displays and coarse integral displays to produce or display a coarse integral hologram.
Disney Enterprises, Inc.


Integrated medical record system using hologram technology


In one aspect of the invention, a computer-implemented method may include maintaining in a computer system, a plurality of relationships among users in an aggregated data network. A user may receive a plurality of data points, where at least one of the data points, was requested via a relationship inquiry, made using a health insurance portability and accountability act (hipaa) compliant security clearance user interface.

Optical device for reproducing three-dimensional lighting images


An optical device includes a hologram recording member on which a hologram image is recorded, a light source for reproducing the hologram image, a first reflecting surface for projecting the hologram image ahead of the hologram recording member by reflecting a light from the light source into a rear side of the hologram recording member at a predetermined angle, and a second reflecting surface for generating a backlight by reflecting the light from the light source into the rear side of the hologram recording member.. .
Sl Corporation


Method of fabricating large area birefringent grating films


A method of fabricating large area birefringent grating films requires directing a uv beam through a large-scale lc polymer film alignment template on which a predetermined periodic alignment pattern has been imprinted and onto a photo-alignment layer such that the pattern is transferred thereon. The alignment template is fabricated by directing a collimated linearly polarized uv beam through a birefringent prism to produce two uv beams, which are directed onto a photo-alignment layer through a uniform quarter-wave plate to create a uv hologram which imprints the desired pattern onto the photo-alignment layer.
Teledyne Scienlific & Imaging. Llc


Flexible photovoltaic module


A flexible and/or bendable photovoltaic (pv) module including a plurality of pv cell based units, the immediately-adjacent of which are chained together by a flexible joint. A segment of flexible electrically-conductive member runs through the flexible joint to establish electrical communication between the pv cell based units.
Prism Solar Technologies Incorporated


System, extracting three-dimensional information of an object from received electromagnetic radiation


An apparatus and method to produce a hologram 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.
Celloptic, Inc.


Full-color incoherent digital holography


In one embodiment, a color holographic image is created by generating a separate complex hologram for each of multiple different colors of an object field illuminated with incoherent light, combining the separate complex holograms to obtain a color complex hologram, and generating a reconstructed color holographic image of the object field.. .
University Of South Florida


Comparing extracted card data using continuous scanning


Comparing extracted card data from a continuous scan comprises receiving, by one or more computing devices, a digital scan of a card; obtaining a plurality of images of the card from the digital scan of the physical card; performing an optical character recognition algorithm on each of the plurality of images; comparing results of the application of the optical character recognition algorithm for each of the plurality of images; determining if a configured threshold of the results for each of the plurality of images match each other; and verifying the results when the results for each of the plurality of images match each other. Threshold confidence level for the extracted card data can be employed to determine the accuracy of the extraction.
Google Inc.


Device and calculating holographic data


An apparatus and a method for optimized calculation of 2d sub-holograms for object points of a three-dimensional scene and a pipeline for real-time calculation of holograms are provided. The invention shortens the calculation time of a hologram for representing a three-dimensional scene and/or to reduce the calculation complexity of such a hologram.
Seereal Technologies S.a.


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Hologram reproducing device and hologram reproducing method


A hologram reproducing device which reproduces information from a recording medium having information recorded by interfering a signal beam and a reference beam, provided with a first light-angle change unit which changes an irradiation angle of the reference beam; a second light-angle change unit which changes the irradiation angle of the reference beam; a photodetector which detects a reproduction beam; a first light-angle drive-signal output unit which outputs a drive signal of the first light-angle change unit; a first light-angle control unit which controls the first light-angle change unit on the basis of the output of the photodetector; a second light-angle drive-signal output unit which outputs a drive signal of the second light-angle change unit; a second light-angle control unit which controls the second light-angle change unit; and a light-angle interpolation processing unit which controls a control target value of the second light-angle control unit.. .
Hitachi-lg Data Storage, Inc.


Optical information recording/reproducing apparatus


A hologram apparatus and hologram optical system includes: a light source which emits a light beam; a splitter which splits the light beam emitted from the light source into a first light beam and a second light beam; a first lens for exposing an optical information recording medium to convergent light of the first light beam; an optical path angle varying device which causes the second light beam to become incident at substantially the same position as the first light beam in the optical information recording medium and changes an angle of incidence of the second light beam incident on the optical information recording medium; and an optical path shifting element which shifts a position of a light beam incident on the optical information recording medium, according to an angle to the optical information recording medium of the light beam incident on the optical information recording medium.. .
Hitachi-lg Data Storage, Inc.


Optical information recording/reproduction device and adjustment method


The optical information recording/reproduction device for recording information by irradiating an optical information recording medium with signal light and reference light to form a hologram, and reproducing the information by irradiating the hologram with the reference light, wherein the optical information recording/reproduction device is provided with a branching element for branching laser light from a laser light source into signal light and reference light, a spatial light modulation unit for adding two-dimensional information to the signal light, an objective lens for irradiating an optical information recording medium with the signal light, a photodetector for detecting diffracted light from the optical information recording medium when irradiated with the reference light, and an optical axis adjustment unit disposed between the laser light source and the branching element, the optical axis adjustment unit adjusting the optical axis of the laser light.. .

Holographic encryption of multi-dimensional images


Cryptographic techniques for encrypting images, and decrypting and reconstructing images, are provided to facilitate preventing unauthorized access to images. A holographic cryptographic component (hcc) can generate a global image comprising a scaled version of a source image and random content, generate a phase hologram representing the global image, and encrypt the phase hologram to generate an encrypted hologram based on a random phase mask, which can be the private encryption key.

Neural control holography


Neural control of holograms is provided to facilitate improving the viewing pleasure of a viewer. A holographic processor component can generate holograms representing a multi-dimensional object scene.

Optical information apparatus and information processing apparatus


An rf hologram is divided in a direction perpendicular to a tangent line of an information track of an information recording surface of an optical disc, and includes a central region including an optical axis of laser light as well as a first end portion region and a second end portion region which sandwich the central region, the central region is formed by a binary diffraction grating and generates ±1 order diffracted light, the first end portion region is formed by a blazed diffraction grating and generates first +1 order diffracted light, the second end portion region is formed by a blazed diffraction grating and generates second +1 order diffracted light, and an rf light receiving element receives both the ±1 order diffracted light, the first +1 order diffracted light, and the second +1 order diffracted light.. .

Holographic display apparatus and holographic display method


A holographic display apparatus includes a spatial light modulator configured to generate hologram patterns to modulate light; an illuminator configured to emit the light to the spatial light modulator; and a controller configured to control operations of the spatial light modulator and the illuminator, the spatial light modulator being configured to generate, from among the hologram patterns, a first hologram pattern and a second hologram pattern according to the control operations of the controller, the first hologram pattern and the second hologram pattern being configured to form a first hologram image and a second hologram image having different viewpoints, and the controller being configured to set a first phase modulation value of the first hologram pattern and a second phase modulation value of the second hologram pattern to be different from each other such that hologram images having different viewpoints are formed.. .

Security elements and their manufacture


The present invention relates to complex security elements based on liquid crystal coatings which are subsequently coated with specific metallic nano-shaped metal particles, a method for their manufacture, in particular on a glass, paper or on a plastic substrate and a security product obtainable using the security element. The security element may contain additionally an embossed surface relief microstructure, especially an optically variable image (an optically variable device, ovd), such as a hologram.

Optical information recording/reproducing apparatus, optical information recording/reproducing method and data archiving system


In a hologram recording/reproducing apparatus where a wavelength-variable laser diode having the external resonator structure is used as its light-source, stable recording/reproducing quality is ensured with respect to a change in the recording/reproducing wavelength against the expansion or contraction of a hologram medium caused by the hologram recording and the temperature change. When the output wavelength from the wavelength-variable laser diode is changed to a predetermined target wavelength, the temperature of the laser light-emission part of the wavelength-variable laser diode is controlled by a temperature control element so that the wavelength band, within which the light-emission power of the laser light-emission spectrum is higher than a predetermined light-emission power, includes the above-described predetermined target wavelength..
Hitachi-lg Data Storage, Inc.


Interferometric apparatus with computer-generated hologram for measuring non-spherical surfaces


Method and system of interferometrically measuring, in reflection, a non-spherical surface with two diffracted beams (of different diffraction orders) formed by a diffractive element positioned transversely to the axis of a common-path interferometer. The first diffracted beam substantially maintains the wavefront of a beam incident onto the diffractive element, while the second diffracted beam has a wavefront profile corresponding to the profile of the measured surface.
Dmetrix, Inc.


Method of laser illumination with reduced speckling


Proposed is a method of laser illumination with reduced speckling for in optical microscopy, machine vision systems with laser illumination, fine optical metrology, etc. The method comprises forming a net of planar ridge waveguides into an arbitrary configuration and providing them with a plurality of holograms having holographic elements formed into a predetermined organization defined by the shape of a given light spot or light field which is to be formed by light beams emitted from the holograms on the surface of the object or in a space at a distance from the planar ridge waveguide.

Compact projection light engine for a diffractive waveguide display


The technology provides a waveguide display having a compact projection light engine and a diffractive waveguide. The diffractive waveguide includes input diffraction gratings with rolled k-vectors.

Position measuring device


A position measuring device of the invention includes a light emitter configured to emit a laser light, a hologram configured to generate a reconstructed image of an inclined surface relative to an optical axis, a light receiver disposed on a reconstructed image forming surface of the hologram, and a measurement unit configured to measure a position of an object based on a position of light received by the light receiver. In the position measuring device of the invention, the light emitter may emit a linear laser light and the light receiver may include an image sensor having a two-dimensional array of pixels..
Mitutoyo Corporation


Security element comprising a volume hologram


The present invention relates to a security element (20) to be built into an item, particularly a document (10), said security element comprising a holographic layer, enabling a volume hologram to be generated, and a non-holographic variable opacity structure generated by the presence of: a) one or more cutout(s) and/or at least partially translucent areas and moreover at least partially opaque area(s); and/or b) oriented platelet pigments. The variable opacity structure is at least partially placed over the hologram within a region of the security element observable in transmitted light..
Arjowiggins Security


Hologram recording and reproducing device, and angular multiplexing recording and reproducing method


A hologram recording and reproducing device and an angular multiplexing recording and reproducing method capable of detecting an angular error signal for which, in a two-beam angle multiplexing method, high-speed reproducing can be achieved with a superior recovered signal. A branch element branches a light beam, emitted from a light source, into a signal light and a reference light.
Hitachi Consumer Electronics Co., Ltd.


Photopolymer formulations for producing holographic media having highly crosslinked matrix polymers


The invention relates to a photopolymer formulation comprising a polyol component, a polyisocyanate component, a writing monomer, and a photoinitiator, containing a coinitiator and a dye having the formula f an, where f stands for a cationic dye and an″ stands for an anion, wherein the dye having the formula f an comprises a water absorption of =5%. The invention further relates to a holographic medium, in particular in the form of a film, containing a photopolymer formulation according to the invention, to the use of such a medium for recording holograms, and to a special dye that can be used in the photopolymer formulation according to the invention..
Bayer Intellectual Property Gmbh


Live teleporting system and apparatus


A telepresence system includes a projector for generating an image, a projection screen for reviewing the image generated by the projector and generating a reflected image and a foil for reviewing the reflected image generated by the projection screen. The foil generates and directs partially reflected image toward an audience, the partially reflected image being perceived by the audience as a virtual image or hologram located on a viewing stage.
Musion Ip Ltd.


Optical information recording and reconstructing device


During reconstruction, the hologram cannot be reconstructed at high speed. In the present invention, the distance between the optical system base point, which is associated with a recording medium address during recording, and the recording medium is measured, and said distance is recorded in a memory.
Hitachi Consumer Electronics Co., Ltd.


Apparatus for reducing data volumes


Apparatus for reducing data volumes, which apparatus comprises: (1) a source systems data profiler and extractor subsystem comprising: a. A fuzzy logic controller comprising fuzzyfier, inference, and output handling, b.
Penteract28 Limited


Hologram recording and playback device and hologram playback method


A hologram recording and playback device is provided with: a medium rotation unit which rotates a hologram recording medium around a predetermined rotational axis; a movement unit which is capable of moving the position of the medium rotation unit within a plane that is perpendicular to the rotational axis; an orthogonal incident angle modification unit which is capable of modifying an orthogonal incident angle; a medium rotation control unit which controls the medium rotation unit so as to rotate the hologram recording medium; an eccentricity compensation unit which performs positioning control of the movement unit; an orthogonal incident angle control unit which controls the orthogonal incident angle modification unit; and an orthogonal incident angle calculation unit which calculates the orthogonal incident angle.. .
Hitachi Consumer Electronics Co., Ltd.


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Method and generating hologram


A method of generating a hologram includes receiving three-dimensional (3d) image data, dividing 3d image data into data groups which are independent from one another, by a first processor; calculating, from at least one of the data groups, hologram values to be displayed at respective positions on a hologram plane, by the first processor; calculating, from at least another one of the data groups, hologram values to be displayed at the respective positions on the hologram plane by a second processor, and summing the calculated hologram values for each of the respective positions on the hologram plane, by the first processor or the second processor, or by the first processor and the second processor in parallel.. .
Samsung Electronics Co., Ltd.


System and applying orthogonal limitations to light beams using microelectromechanical systems


A system for generating a light beam having a plurality of orthogonal function modes includes a light source for generating a plane wave light beam. A microelectromechanical (mem) system including an array of micro-mirrors for generating the light beam having the plurality of orthogonal function modes applied thereto responsive to the plane wave light beam and control signals for controlling the array of micro-mirrors.
Nxgen Partners Ip, Llc


Video display device and head-mounted display


A video display device is provided with: a display element which modulates light from an illumination optical system, and displays video; and an ocular optical system for guiding video light from the display element into a pupil of an observer. The ocular optical system is provided with: an ocular prism which guides the video light therein; and a holographic optical element (hoe).
Konica Minolta, Inc.


Light extracting diffusive hologram for display illumination


This disclosure provides systems, methods and apparatus for illumination, such as for illuminating displays, including reflective displays. An illumination device may include a light-extracting, diffusive holographic medium.
Qualcomm Mems Technologies, Inc.


Apparatus and measuring quality of holographic image


An apparatus and a method for measuring quality of a holographic image are disclosed. The apparatus for measuring the quality of the holographic image may include an obtaining unit to obtain a hologram, a reconstruction unit to reconstruct a three-dimensional (3d) holographic image by irradiating the hologram with a light source, a measuring unit to measure depth of the reconstructed holographic image, and an analysis unit to analyze depth representation quality of the holographic image base on the measured depth of the holographic image..
Electronics And Telecommunications Research Institute


Lamp for vehicle


A lamp for a vehicle may include a hologram reproducing apparatus reproducing a written image to an outside when light is input, a light source provided to one end side of the hologram reproducing apparatus, and a reflecting apparatus provided to another end side of the hologram reproducing apparatus and reflecting light of the light source to the hologram reproducing apparatus at a same incident angle as an incident angle when an image is written on the hologram reproducing apparatus.. .
Sl Corporation


Holography reproducing apparatus and holography reproducing method


A holography reproducing apparatus and a holography reproducing method are provided. The holography reproducing apparatus includes: a backlight configured to emit light, and a spatial light modulator configured to modulate light input from the backlight and transmit the modulated light to generate a transmissive hologram image, wherein at least one of a wave front of light emitted from the backlight and the spatial light modulator has a curved surface..
Samsung Electronics Co., Ltd.


Hologram generation apparatus and method


Provided is a hologram generation apparatus based on a hologram imaging system, which includes an object space, where an object is situated, and a retina space or region, where an image is formed within an eyeball of an observer. The hologram generation apparatus comprises: a modeling unit for generating first graphic data by transforming a 3d image of a 3d object to a set of polygonal facets; a data transformation unit for generating second graphic data by transforming the first graphic data from the modeling unit to normal/reference coordinates in the retina region; a hologram generation unit for generating a first computer generated hologram (cgh1), which is light wave analysis data for the second graphic data; and a hologram transformation unit for transforming the first computer generated hologram (cgh1) in the retina region to a second computer generated hologram (cgh2) in the object space..
Korea University Research And Business Foundation


Concentrating photovoltaic skylight based on holograms and/or methods of making the same


Improved building-integrated photovoltaic (bipv) systems according to certain example embodiments may include concentrated photovoltaic skylights or other windows in which holographic optical elements (hoes) are provided. The hoes are formed on or in a substantially planar glass substrate, e.g., at light coupling locations, and they help form a holographic projection of light in a desired wavelength range on a photovoltaic module.
Guardian Industries Corp.


Three-dimensional mixed-reality viewport


An application running on a computing platform that employs three-dimensional (3d) modeling is extended using a virtual viewport into which 3d holograms are rendered by a mixed-reality head mounted display (hmd) device. The hmd device user can position the viewport to be rendered next to a real world 2d monitor and use it as a natural extension of the 3d modeling application.

Fluorescence receiving apparatus and fluorescence receiving method


A fluorescence receiving apparatus comprises an excitation light source, a spatial light modulator of a phase modulation type for phase-modulating excitation light to obtain phase-modulated light, a focusing optical system configured to focus the phase-modulated light to a specimen, a specimen stage for supporting the specimen, a fluorescence receiver for receiving fluorescence generated by focus of the phase-modulated light to the specimen, a control unit for displaying a first cgh on the spatial light modulator, and a correction unit for correcting the first cgh. The correction unit comprises a receiver-specific sensitivity information storage preliminarily acquiring and storing sensitivity information per reception position specific to the fluorescence receiver, and a second hologram generator for correcting the first cgh, based on intensities of the fluorescence and the sensitivity information, to generate a second cgh.
Hamamatsu Photonics K.k.


Imaging diagnostic imaging


An imaging system and method for using an optical device with an electronic device for diagnostic imaging is provided. The imaging system may include a controller configured to capture a series of holograms by powering a light source of the optical device to illuminate an object, wherein light from the light source is collimated onto the object through an aperture of the optical device.
Samsung Electronics Co., Ltd.


Apparatus and displaying holographic 3d image


An apparatus and a method for displaying holographic 3d image are provided. The method includes generating, by a controller, a hologram signal to generate multiple identical hologram images which are shifted with respect to one another by a predetermined distance and overlapped on one another, and modulating, by a spatially light modulator (slm), light incident on the slm based on the hologram signal..
Samsung Electronics Co., Ltd.


Polarization conversion systems with geometric phase holograms


A polarization conversion system includes a geometric phase element and a retarder element. The geometric phase element has optical anisotropy with local optical axis orientations that vary non-linearly in at least one dimension along a surface thereof.
Imagineoptix Corporation


Tunable nonlinear beam shaping by a non-collinear interaction


A method and system for beam shaping employing a non-collinear quasi phase-matched interaction in a crystal whose nonlinear coefficient was encoded by a computer generated hologram is provided herein. The same axis is used for both satisfying the phase-matching requirements and encoding the holographic information.
Ramot At Tel-aviv University Ltd.


Chip for transdermal emission or augmentation of energy


A hologram chip may be programmed to emit and/or augment energy tuned to interact with bodily functions through transdermal contact. The chip may be programmed by using a pair of tesla pancake coils, each coupled to a spherical electrode and driven to create an energetic field between the electrodes.

Optical information reproduction device and optical information recording and reproducing device


A position control method at high speed and high accuracy for recorded hologram is obtained. An optical information recording and reproducing device records an interference fringe obtained by interfering reference beam and signal beam as a hologram on an optical information recording medium and reproduces information using the reference beam from the hologram recorded on the optical information recording medium.

Method for illumination of a hologram in holographic lithography and a multi-component illuminator for carrying out the method


A method and a multi-component illuminator for illumination of a hologram in holographic lithography in which a coherent beam is split into a plurality of individual laser light beams by means of a beam splitter which is provided with a plurality of individual sub-illuminators. Each sub-illuminator has an individual aperture, receives a respective individual coherent light beam, and form a an illumination field on the surface of the hologram during hologram illumination.

Volume hologram for optic illumination


An optical system includes an illumination source, a volume hologram, and an image-forming optic. The illumination source is configured to emit coherent light, and the volume hologram is configured to receive and diffract the coherent light.
Microsoft Corporation


Software integrated electronic messaging cards


A method and a device are disclosed including software components that are executed on a computing device to enable multimedia communications. A message card constituting an integrated messaging unit is used to transmit and receive multimedia data between two or more computing devices.

An optical waveguide comprising a core region with integrated hologram


An optical waveguide comprising an axial direction and a cross-section perpendicular to said axial direction is shown. The optical waveguide comprises a core region.
Aarhus University


Optical information recording and reproducing device, optical information recording and reproducing method, and reproducing device


In recording and reproducing devices that use angular-multiplexing holography, accessing a recorded hologram of interest had taken time because after positioning at the vicinity of the hologram, it had been necessary to carry out fine adjustment of the position while checking the signal quality of the hologram. The optical information recording and reproducing device according to the present invention uses angular-multiplexing to record interference patterns formed from a signal beam and a reference beam onto an optical information recording medium as page data and reproduces information from the optical information recording medium, said optical information recording and reproducing unit being provided with: a light-source unit that outputs light; an optical splitting unit that splits the light into a reference beam and a signal beam; an angle controlling unit that controls the angle for the direction of angle multiplexing at which the reference beam enters the optical information recording medium; an optical detecting unit that detects a reproduced image that is reproduced by using the reference light; and a position control unit that controls the position relationship between the reference beam and the optical information recording medium.

Digital display platform for promotional/advertisement/gaming inclusive of static and motion graphic images with use


A motion poster or moster is the creation or recreation of a static movie poster, flyer or banner with the objective of bringing them to life through digital movement and animation. Mosters can be played on a video player, monitor, television, computer, phone, cellphone, led, pad/tablet, gas pump display, sticker, label, over-sized screen or projected and can be watched lenticularly, (auto)stereoscopically, or in 2 d, 3 d, 4 k, 8 k, hd, blu-ray, imax, curved or by hologram.

Transflective holographic film for head worn display


A display panel assembly comprises a transflective holographic screen, i.e., a transparent screen that reflects light from a projection system, comprising at least a volume hologram, a first protective element and a second protective element, each arranged in contact with the volume hologram such that the volume hologram is sandwiched between the first protective element and the second protective element. The display panel assembly further comprises a projection system focusing an image on the volume hologram comprising at least projection optics, mounting means arranged to fixedly mount the projection system relatively to the transflective holographic screen.
Ecole Polytechnique Federale De Lausanne (epfl)


Method for design and manufacturing of optics for holographic sight


A method for design and fabrication of holographic optical elements for a compact holographic sight is proposed. The method includes use of ray-trace software to design holographic elements having optical power using an intermediate hologram with parameters obtained through minimization of the merit function defining image quality..
Luminit Llc


Projection device and holographic reconstruction of scenes


A holographic reconstruction of scenes includes a light modulator, an imaging system with at least two imaging means and an illumination device with sufficient coherent light for illumination of hologram coded in the light modulator. The at least two imaging means are arranged such that a first imaging means is provided for the magnified imaging of the light modulator on a second imaging means.
Seereal Technologies Gmbh


Optical device, and virtual image display


A virtual image display device with an optical waveguide to guide, by internal total reflection, parallel pencil groups meeting a condition of internal total reflection, a first reflection volume hologram grating to diffract and reflect the parallel pencil groups incident upon the optical waveguide from outside and traveling in different directions as they are so as to meet the condition of internal total reflection inside the optical waveguide and a second reflection volume hologram grating to project the parallel pencil groups guided by internal total reflection inside the optical waveguide as they are from the optical waveguide by diffraction and reflection thereof so as to depart from the condition of internal total reflection inside the optical waveguide.. .
Sony Corporation


Security element having volume hologram and printed feature


The invention relates to a method for producing a security element having a holographic layer in which a hologram is arranged, characterized by at least the following steps: a) providing the holographic layer; b) exposing the holographic layer at least in sections via a master hologram to produce a hologram copy in the holographic layer; e) printing the holographic layer at least in sections with an ink, forming a printed feature, wherein the ink comprises the melt of a dye or a colorless component or a solvent and a dye dissolved therein or a colorless component dissolved therein; d) fixing the exposed holographic layer to produce the hologram in the holographic layer, wherein the printed feature and the hologram are arranged in the holographic layer such that the printed feature and the hologram overlap at least in sections. The invention further relates to a security feature which is produced or can be produced by said method..
Bayer Materialscience Ag


Device for generating patterned light interference


A patterned light interference generating device 1 is provided with a laser light source 10; a wavefront controller 20 for receiving laser light, presenting a hologram pattern to control the wavefront of the laser light, and outputting wavefront-controlled light; an imaging optical system 40 for imaging the wavefront-controlled light at a target position 2; a filter 50 arranged at a portion of concentration by the imaging optical system 40; and a control unit 30 for controlling the hologram pattern; the filter 50 has a plurality of slits in one-to-one correspondence to a plurality of bright spots of a desired order; each of the plurality of slits has an elongated shape extending radially from a center of the plurality of bright spots of the desired order; one end on the center side of each of the plurality of slits is separated from the center.. .
Hamamatsu Photonics K.k.


Optical information recording and reproducing apparatus and optical information recording and reproducing method


To provide an optical information recording and reproducing apparatus capable of correct positioning, in an optical information recording and reproducing apparatus which branches a light beam into reference light and signal light to cause interference and records an obtained interference fringe as a hologram on an optical information recording medium and reproduces the hologram recorded by applying the reference light onto the optical information recording medium, the apparatus has an image pickup element which detects reproduction light passing through an aperture 101 in reproduction light obtained by applying the reference light onto the optical information recording medium and generates a reproduction signal, photo detectors 104a, 104b, 104c, and 104d that are different from the image pickup element and detect reproduction light applied on a location on the periphery of the aperture 101, and a computing unit which computes a position error signal based on outputs from the photo detectors.. .
Hitachi Consumer Electronics Co., Ltd.


Resolution enhancement techniques based on holographic imaging technology


Systems and techniques for performing resolution enhancement on target patterns based on holographic imaging technique (hit) are described. During operation, an electronic design automation (eda) tool can compute an in-line hologram of the target patterns based on parameters associated with a photolithography process that is used in a semiconductor manufacturing process, wherein the semiconductor manufacturing process is to be used for printing the target patterns on a semiconductor wafer.
Synopsys, Inc.


Methods for improving performance of holographic glasses


The improvement of the performance of holographic glasses with recorded holograms as measured by a figure of merit of the holographic glasses is disclosed. The improvement in the figure of merit of the holographic glasses is obtained at least in part with the addition of arsenic in the formation of the holographic glasses.
Pd-ld, Inc.


Direct write lithography for the fabrication of geometric phase holograms


A direct-write lithography apparatus includes a polarization selector stage configured to vary a polarization orientation angle of light from a light source, a focusing element configured to focus the light from the light source into a spot at a focal plane thereof, and a scanning stage configured to scan the spot in at least two dimensions along a surface of a polarization-sensitive recording medium that is arranged proximate to the focal plane such that neighboring scans substantially overlap. The polarization selector stage and the scanning stage are configured to be operated independently of one another.
North Carolina State University


Sensory holograms


A sensory hologram system includes a holographic system generating a holographic image, a sensory imparting system augmenting the holographic image, a detector configured to detect a location of a target, and a processor synchronizing the holographic system and the sensory imparting system based on the location of the target.. .
International Business Machines Corporation


Analytic computing video holograms in real time


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 sub-hologram and the whole hologram is generated from a superposition of sub-holograms, wherein the complex hologram values of a sub-hologram 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.
Seereal Technologies S.a.


Container sealing member including aligned narrow anti-counterfeiting strips


A sealing member or closure for a container is provided having an aligned narrow anti-counterfeiting strip, such as a hologram or the like. The sealing member is provided in the form of a one-piece or a two-piece sealing member, has an optional tab for ease in removal from a container, and includes a narrow and aligned anti-counterfeiting strip to aid in signaling authenticity..
Selig Sealing Products, Inc.


Optical pickup and optical recording and reproducing device


An optical pickup includes a light source 1; a diffraction element 2 for generating a write main beam and a read sub-beam via diffraction; an objective lens 5; a wavelength plate 9; a polarization hologram element 7 having a plurality of diffraction regions with different diffraction characteristics, designed so that each diffraction region separates a light beam reflected from the optical storage medium and transmitted through the wavelength plate into a 0th order light beam and ±1st order light beams; an actuator 11; and a photodetector 10 configured to detect a light beam reflected from the optical storage medium 6 and diffracted by the polarization hologram element 7. The photodetector 10 generates an rf signal from a detection result concerning a 0th order light beam derived from the main beam, generates a focus error signal and a tracking error signal from a detection result concerning one of ±1st order light beams derived from the main beam, and generates a signal indicating that data has been recorded normally from a detection result concerning a 0th order light beam derived from the sub-beam..
Panasonic Intellectual Property Management Co., Ltd.


Device for recognizing image and device for reading image


The disclosure provides a device for recognizing an image and a device for reading an image. The device for recognizing the image includes a circuit board (50) on which a plurality of light sources (20) are arranged, the multiple light sources (20) which are configured to supply multiple lights in different directions to the image to be recognized, and an imaging component configured to uniformly image the lights diffused by the image to be recognized so as to recognize the image to be recognized.
Weihai Hualing Opto-electronics Co., Ltd.


Scanner device and device for measuring three-dimensional shape of object


A laser beam (l50) is reflected by a light beam scanning device (60) and irradiated onto a hologram recording medium (45). On the hologram recording medium (45), an image (35) of a linear scatter body is recorded as a hologram by using reference light that converges on a scanning origin (b).
Dai Nippon Printing Co., Ltd.




Hologram topics:
  • Holographic
  • Modulation
  • Visibility
  • Holographic Data Storage
  • Control Unit
  • Phase Modulation
  • Spatial Modulation
  • Contrast Ratio
  • Imaging System
  • Processing Device
  • Recording Device
  • Calibration
  • Data Storage
  • Reproduction
  • Light Guide


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