This page is updated frequently with new Holographic-related patent applications.
|| List of recent Holographic-related patents
|Led night light has projection or image feature|
An led night light for night time or dark area use, such as a plug-in wall outlet night light or direct current (dc) operated night light, includes projection or image features to project or present an image, message, data, logo, or time on a ceiling, walls, floor, or other desired surface, or an optics element surface. The optics means may include an magnify optics-lens, tube or tube assembly, slide, convex lens, concave lens, openings, cut-outs, film, grating, or holographic element to create an image at a desired location.
|3d holographic virtual object display controlling method based on human-eye tracking|
A 3d holographic virtual object display controlling method and apparatus based on human-eye tracking are provided. The display controlling method comprises the following steps of: activating tracking of human eyes of a user; tracking motions of eyeballs of the user; controlling a 3d holographic virtual object presented in a display interface to rotate in response to the motions of the eyeballs of the user; and ending up the tracking of the human eyes of the user.
Shenzhen Estar Technology Group Co., Ltd.
|Interactive displaying method, control achieving displaying of a holographic image|
An interactive displaying method, a control method and an apparatus for achieving displaying of a holographic image are provided. The interactive displaying method comprises: scanning a 3d space by controlling signal transmitters arranged in a matrix to transmit signals; determining a target object in the 3d space; and determining a first position of the target object and displaying a viewable image corresponding to the target object at a second position of a display region.
Shenzhen Estar Technology Group Co., Ltd.
|Displaying method, apparatus and system for providing holographic images to a plurality of viewers simultaneously|
A displaying method, a displaying apparatus and a displaying system for providing holographic images to a plurality of viewers simultaneously are provided. The displaying method comprises: tracking motions of m viewers and eye positions thereof, adjusting rotation angles of programmable mirrors allocated to each of the viewers according to the motions of the eye positions of the viewer, it is predefined that each pixel position of the projection screen corresponds to n adjacent ones of the programmable mirrors; modulating a corresponding left-eye 3d image and a corresponding right-eye 3d image according to the tracked motions of the eye positions of each of the viewers and the rotation angles of the programmable mirrors allocated to the viewer, and projecting the left-eye 3d image and the right-eye 3d image onto the projection screen to control optical projections incident to the left eyes and the right eyes of different viewers..
Shenzhen Estar Technology Group Co., Ltd.
|Thin film type controlled viewing window back light unit and thin flat type controlled viewing window display using the same|
The present disclosure relates to a thin film type controlled viewing window back light unit and a thin flat type controlled viewing window display using the same. The present disclosure suggests a thin film type back light unit which can include: a base film having a width and a length, and including a high refractive film and a low refractive film stacked on the high refractive film; an incident pattern disposed at one side of a bottom surface of the base film; a reflective pattern disposed at an opposite side apart from the one side with the length of the bottom surface of the base film, and covering the width of the opposite side; a light radiating pattern disposed on an upper surface of the base film; a holographic film for controlling a viewing-window disposed on the light radiating pattern; and a light source being apart from the incident pattern, and providing an incident light to the incident pattern..
Lg Display Co., Ltd.
|Mobile device wireless charging system|
A wireless charging system for charging a mobile device uses a supercapacitor to provide wireless charging of the device. A holographic image of the supercapacitor may store electrical charge which may be released for storage into the battery of the device..
|Touch sensitive holographic display system and using the display system|
A touch sensitive holographic display system includes a transparent screen having a rear side and a front side. A projector is configured for creating a holographic image at the front of the screen by projecting an image towards the rear side of the screen.
Continental Automotive Systems Inc.
|Apparatus and displaying holographic three-dimensional image|
Provided are an apparatus and a method for displaying a holographic three-dimensional (3d) image. The apparatus includes an image segmenter configured to segment an original image into a plurality of segments, and a calculator configured to calculate diffraction fringe pattern information for displaying each of the plurality of segments as a 3d holographic image.
Samsung Electronics Co., Ltd.
|Holographic image display system|
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..
Real View Imaging Ltd.
|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.
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..
Top coupled photonic chip alignment package
The present invention provides an improved coupling and improved alignment of top-coupled photonic chips. The present invention includes a method to package and align top-coupling photonic chips using a holographic grating coupler and v-groove placement comprising the steps of: preparing the photonic chip with grating couplers, preparing the fibers by polishing the ends, preparing the cap chip by defining v-grooves to complement the photonic chip, attaching the fibers to the v-block cap chip, and top-cladding the cap chip to the photonic chip.
Bae Systems Information And Electronic Systems Integration Inc.
Backlight unit and holographic display including the same
Provided are a backlight unit and a holographic display including the same. The backlight unit may include: a light guide plate; a light source unit configured to adjust a direction of light which is emitted from the light source unit and incident on the light guide plate; and a diffraction device which is disposed on the light guide plate and configured to control a direction of light emitted from the light guide plate..
Samsung Electronics Co., Ltd.
Management of content in a 3d holographic environment
Methods for managing content within an interactive augmented reality environment are described. An augmented reality environment may be provided to an end user of a head-mounted display device (hmd) in which content (e.g., webpages) may be displayed to the end user using one or more curved slates that are positioned on a virtual cylinder that appears body-locked to the end user.
Composite laminate assembly and manufacturing the same
A method for the manufacture of a composite laminate assembly that includes decorative, functional, security, reflective, diffractive, holographic elements for liquid transfer onto the surface of a variety of base materials or work piece having a flat or complex three dimensional shape.. .
Illinois Tool Works Inc.
Optical information reproduction device and optical information reproduction method
An optical information recording/reproduction device is capable of appropriately correcting the angle of a reference beam during data reproduction even when a wavelength deviation or an angle deviation in multiplexing and vertical directions of the reference beam occurs in a holographic memory recording medium. The optical information reproduction device has a laser light source that generates a reference beam; an image-capturing unit that detects a diffraction ray to be reproduced from the optical information recoding medium; and an optical detection unit that has at least two light-receiving surfaces and is used for detecting a diffraction ray reproduced by irradiating the reference beam on the optical information recording medium.
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
A display device 10 comprises a see-through member 12 having a see-through area 14, the see-through member 12 including a plurality of display segments 16 for emitting visible light, the display segments 16 being provided within the see-through area 14 in a mutually spaced manner, the see-through member 12 further including a plurality of holographic optical elements 20 provided within the see-through area 14, each holographic optical element 20 being associated with a respective display segment 16, wherein each holographic optical element 20 is adapted to collimate the visible light emitted by the associated display segment 16 when the display segment 16 is located in a focal plane of the associated holographic optical element 20.. .
Lusospace, Projectos Engenharia Lda
Multiple laminar flow-based particle and cellular separation with laser steering
The invention provides a method, apparatus and system for separating blood and other types of cellular components, and can be combined with holographic optical trapping manipulation or other forms of optical tweezing. One of the exemplary methods includes providing a first flow having a plurality of blood components; providing a second flow; contacting the first flow with the second flow to provide a first separation region; and differentially sedimenting a first blood cellular component of the plurality of blood components into the second flow while concurrently maintaining a second blood cellular component of the plurality of blood components in the first flow.
Premium Genetics (uk) 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.
Interactive three dimensional displays on handheld devices
Techniques are disclosed for rendering an anamorphic projection of 3d scene geometry on a handled device using a correct asymmetric perspective geometry projection. Once pose of the handheld device is determined, a relative eye position may be inferred when the device is tilted away from an initial or default pose, based on data supplied by accelerometers.
Disney Enterprises, Inc.
Holographic memory device
To reduce an influence of stray light and stably record/reproduce high-quality data in holographic recording/reproduction. A holographic memory device includes an optical system that guides a reference beam to an optical information recording medium at a desired angle of incidence, a control part that controls the angle of incidence of the reference beam generated in the optical system, and a lens part that images the reference beam in a desired position of the optical information recording medium.
Hitachi-lg Data Storage, Inc.
Display device for holographic images for small and medium sized media devices
A holographic image viewer for small and medium-sized media devices whose inventive concept lies in its portability, providing viewing of holographic moving images (the 3-d ones according to the incidence of light on the image) generated by any type of video player such as a smartphone, tablet, notebook, led and lcd monitor. It provides complementary protection for these mobile devices and, as the main property of said device is its portability, it can be used individually and relies on low cost manufacturing technology..
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
Method and head worn display with multiple exit pupils
A method for displaying an image viewable by an eye, the image being projected from a portable head worn display, comprises steps of: emitting a plurality of light beams of wavelengths that differ amongst the light beams; directing the plurality of light beams to a scanning mirror; modulating in intensity each one of the plurality of light beams in accordance with intensity information provided from the image, whereby the intensity is representative of a pixel value within the image; scanning the plurality of light beams in two distinct axes with the scanning mirror to form the image; and redirecting the plurality of light beams to the eye using a holographic optical element acting as a reflector of the light beams, whereby the redirecting is dependent on the wavelength of the light beam, to create for each light beam an exit pupil at the eye that is spatially separated from the exit pupils of the other light beams.. .
Ecole Polytechnique Federale De Lausanne
Backlight unit for holographic display
A backlight unit for a holographic display is provided. The backlight unit includes: at least one light source; at least one input coupler; a light guide panel (lgp) that guides light; a first holographic element on a first surface of the lgp; and a second holographic element on a second surface of the lgp, wherein the at least one input coupler is configured to uniformly transmit rays emitted from the at least one light source toward the first holographic element through the lgp, and the lgp is configured to transmit the rays incident from the at least one input coupler toward the first holographic element, and the first holographic element redirects the rays toward the second holographic element, the redirected rays being substantially parallel to one another, and the second holographic element emits rays incident from the first holographic element toward an outside of the lgp..
Samsung Electronics Co., Ltd.
Video-game console for allied touchscreen media
The present invention seeks to introduce a new delivery system, interactive platform and controller compliment for an allied touchscreen media; with said media particularly comprising repository-sourced mobile game applications configured for native operation. Mapping systems are dynamic and include an interface for user manipulation of immersive, 3-d holographic imaging modalities to advance input in a video-game environment.
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.
Virtual reality environment with real world objects
An hmd device renders a virtual reality environment in which areas of the real world are masked out so that real world objects such as computer monitors, doors, people, faces, and the like appear visible to the device user and no holographic or virtual reality content is rendered over the visible objects. The hmd device includes a sensor package to support application of surface reconstruction techniques to dynamically detect edges and surfaces of the real world objects and keep objects visible on the display as the user changes position or head pose or when the real world objects move or their positions are changed.
Fabrication of high efficiency, high quality, large area diffractive waveplates and arrays
The objective of the present invention is providing a method for fabricating high quality diffractive waveplates and their arrays that exhibit high diffraction efficiency over large area, the method being capable of inexpensive large volume production. The method uses a polarization converter for converting the polarization of generally non-monochromatic and partially coherent input light beam into a pattern of periodic spatial modulation at the output of said polarization converter.
U.s. Government As Represented By The Secretary Of The Army
Smart transparency for holographic objects
A head mounted display (hmd) device is configured with a sensor package that enables head tracking to determine the device user's proximity to holographic objects in mixed reality or virtual reality environments. A fade volume including concentrically-arranged volumetric shells is placed around the user including a near shell that is closest to the user, and a far shell that is farthest from the user.
Hand held novelty cheering device
A hand-held novelty cheering device that enables a user to express patriotism, support and encouragement at any type of event by waving the device to-and-fro as the device can generate a rattling sound and display images in holographic relief, glow-in-the-dark, luminescent, reflective, distinctive coloration, lights, insignias, licensed characters, mascots, or any visual representation the user desires in order to generate the desired expressive effect.. .
Holographic keyboard display
Embodiments that relate to displaying holographic keyboard and hand images in a holographic environment are provided. In one embodiment depth information of an actual position of a user's hand is received.
Display devices using feedback enhanced light emitting diode
Display devices using feedback-enhanced light emitting diodes are disclosed. The display devices include but are not limited to active and passive matrix displays and projection displays.
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.
Contact lenses with embedded labels
An ophthalmic lens incorporating clearly identifiable, highly visible embedded labels that are not visible to the wearer or others when placed on the eye may be utilized to allow an individual to easily distinguish between the normal state of the lens and the inverted state of the lens as well as serve any number of functions, including acting as a brand label, a prescription label or as a cosmetic enhancer. The embedded label comprises holographic recordings revealed only in transmitted light..
Johnson & Johnson Vision Care, Inc.
Holographic 3d eyewear for video gaming
3d eyewear that uses cylindrical lens that stretched across the viewers eye viewing space, while capturing and curving light (into pincushion and/or barrel distortion) from an image on a screen (such as 3d video games, videos, and pictures) and turn it into a holographic 3d scene with depth. The technology depends on the viewers natural monocular cues combined with the optical distortion of the lens to acquire this holographic 3d effect.
Methods and coherent holographic data channels
Methods and devices for coherent holographic data channel techniques are presented. Coherent techniques for data detection generally include homodyne and heterodyne detection.
Akonia Holographics, Llc
Holographic projection device for the enlargement of a visibility region
A holographic projection apparatus and a method for magnifying a virtual visibility region, for observing a reconstructed scene with at least one light modulation device and with at least one light source having sufficiently coherent light for generating a wavefront of a scene that is coded in the light modulation device. By means of imaging the wavefront into a viewer plane, it is possible to generate the virtual visibility region for observing the reconstructed scene.
Seereal Technologies S.a.
Projection display and displaying at least one of two-dimensional and three-dimensional scene or of content
A projection device is provided for displaying at least one of a two-dimensional and three-dimensional scene or of content. The projection device comprises an illumination device, at least two spatial light modulator devices and an optical system.
Seereal Technologies S.a.
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.
Integrated filter and grating in an aiming sight
A holographic sight is provided having a housing that includes a plurality of holograph sight components. A laser diode mounted in the housing is configured to emit a laser light beam.
L-3 Communications Corporation, Warrior Systems Division - Eotech
Holographic reproducing apparatus and method, holographic implementing device and method
A holographic reproducing apparatus includes: a photorefractive crystal configured to have holographic images recorded in a plurality of different angles respectively; and a light source configured to supply a plurality of reproducing light beams to be incident to the photorefractive crystal in different angles, wherein the reproducing light beams have a same frequency and a same optical length as a reference light beam used when the holographic images are formed. In the holographic reproducing apparatus, each of the holographic images can be presented in different angles without interference therebetween, so that observers in a plurality of orientations can view the holographic images recorded in the photorefractive crystal, thus the problem that the viewing angle is unique in the holographic reproducing procedure is addressed..
Beijing Boe Display Technology Co., Ltd.
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.
Radial fpa based electro-optic imager
A radial fpa based electro-optic imager, rather than the conventional rectilinear approach, would have basic overall system design advantages. Those system design advantages would apply to the components and the entire system implementation and include approaches to objective optical design, focal plane array fpa with fill factor, fpa layout and associated read-out integrated circuit roic, support electronics architecture and associated memory requirements, image processing ip algorithms, display layout and format, and eyepiece optics.
United States Of America, As Represented By The Secretary Of The Army
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..
Polymer dispersed liquid crystal photovoltaic device and making
A novel photovoltaic device including a polymer dispersed liquid crystal (pdlc) material that is capable of converting solar energy to electrical energy and method for making. The device may optionally include a conductive container for holding the pdlc material.
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
Three dimensional display system
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.
Coherent Logix, Incorporated
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
Holographic image projection with holographic correction
There is provided a method of projection using an optical element (502,602) having spatially variant optical power. The method comprises combining fourier domain data representative of a 2d image with fourier domain data having a first lensing effect (604a) to produce first holographic data.
Two Trees Photonics Limited
Method and achieving transformation of a virtual view into a three-dimensional view
A method and an apparatus for achieving transformation of a virtual view into a 3d view are provided. The method comprises: s1.
Shenzhen Cloud Cube Information Tech 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.
High-power, phased-locked, laser arrays
High-power, phased-locked, laser arrays as disclosed herein utilize a system of optical elements that may be external to the laser oscillator array. Such an external optical system may achieve mutually coherent operation of all the emitters in a laser array, and coherent combination of the output of all the lasers in the array into a single beam.
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.
Color changing display systems
A color changing display system is provided that includes a light source for producing different light colors, a controller for providing a smooth transition between the different light colors, and a body with a combined image comprising two or more differently colors images printed in a single layer and positioned on the body. Each of the different color images reacts with a respective color of the different light colors such that an appearance of the combined image changes gradually from a first display image having one particular shape into a second display image having a second particular shape in response to the different light colors interacting with the combined image to produce a moving, seemingly holographic effect.
Pseudo 3-d rendering of mobile device based slot machine
The invention relates to a system and method for applying one or more visual effects such as three-dimensional effects and holographic effects to one or more two-dimensional images that represent all or a portion of a virtual slot machine that is depicted in a virtual slot machine game rendered by a computing device. The computing device may determine the visual effects to be applied based on sensor information that indicates an orientation of the computing device.
Tap Slots Inc.
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
Method and enhancement of resolution and wide viewing angle digital holographic system
An apparatus and method for enhancing a resolution and a wide viewing angle of a holographic system is provided, the method including determining a multiple n of a target resolution and a wide viewing angle based on a resolution of a spatial light modulator (slm) and an angle of view of a condensing lens, generating a plurality of hogels from a target image based on the determined multiple n of the target resolution and wide viewing angle, and recording the target image on a recording medium using a condensed beam obtained from a parallel beam that loads the plurality of hogels passing through the condensing lens.. .
Electronics And Telecommunications Research Institute
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.
Millimeter wave three dimensional holographic scan imaging inspecting a human body or an article
A millimeter wave three dimensional holographic scan imaging apparatus and a method for inspecting a human body or an article are disclosed. In one aspect, the apparatus includes a first and second millimeter wave transceiver module.
Nuctech Company Limited
Low power fingerprint capture system, apparatus, and method
The present invention provides a large format fingerprint capture apparatus, system and method that is low power, compact, and lightweight and has a platen area greater than 3.0 square inches. The present system is typically powered, controlled, and exchanges data over a single data/control/power connection to a host pc, e.g., a desk top computer, pda, or laptop computer although the system can also be used in a wireless fashion with a power subsystem so no physical connections are required.
Identification International, Inc.
Anti-speckle system for coherent illumination system
This invention in phase homogenization of coherent light from illuminators used for surveillance imaging systems provides a coherent light emitter aligned with a light source ray path along an optical axis with at least two separated microdiffractive diffusers, the microdiffractive diffusers comprising holographically generated surfaces of microdiffractive structure that statistically tend to diffract light at selectable angles or distribution patterns, the microdiffractive diffusers disposed upon a substrate and separated from each other by a distance determined by wavelength phase and irradiance characteristics of the coherent light emitter and by refractive characteristics of at least two microdiffractive diffusers, followed by a homogenized exit ray path in order to produce a diffused pattern of illumination optimized for long distance surveillance imaging.. .
Robert Bosch Gmbh
A mobile terminal according to one embodiment of the present invention comprises: a first body and a second body detachably attached to each other; a first light source on the first body so as to provide light to the second body; a first filming unit, on the second body, for forming a first hologram by means of light supplied from the first light source. Thus more diverse holographic images can be produced by replacing the first body..
Lg Electronics Inc.
See through display enabling the correction of visual deficits
A see-through display system with the ability to correct visual deficits such as presbyopia, color blindness and poor night vision is disclosed. This invention enables the correction of visual deficits using camera(s), microdisplay(s), controlling circuit(s) and see through optics such as free form lens/mirror, half-mirror, diffractive and/or holographic optical element(s)..
Multilayer film and authentication label
The invention pertains in a first aspect to a multilayer film that includes a frangible holographic image layer and an adhesive layer adjacent to a side of the holographic image layer; and, an additional temporary support layer that is adjacent a side of the holographic image layer that is opposite the adhesive layer, and provides integrity to the multilayer film. The additional temporary support layer can be a polyester film that is removable from the multilayer film at ≦10 gram per inch peel strength; or, can be a heat-shrinkable film that is removable from the multilayer film with the application of heat.
E I Du Pont De Nemours And Company
Multilayer film and authentication label
In a second aspect, an authentication label includes a holographic image layer, a first heat-shrinkable layer, a first adhesive layer between the holographic image layer and the first heat-shrinkable layer, and a back adhesive layer.. .
Holographic collection and emission turning film system
Various examples of diffraction grating layers for touch/proximity sensing apparatus are provided. The touch/proximity sensing apparatus may include a light guide and light sources edge-coupled to first side of the light guide.
Self-reference holographic imaging system
A system for recording a digital hologram of an object comprises: a coherent source intended to illuminate the object and thus produce a wave diffracted by the object; and a digital sensor intended to record the digital hologram of the object. It furthermore comprises a spatial phase modulating assembly able to produce in the plane of the sensor a plurality of duplicates of the wave diffracted by the object, the duplicates being offset from each other but overlapping partially, these duplicates forming on the sensor a digital hologram of the object, this hologram being what is referred to as a self-reference hologram..
A holographic display includes: a light source; at least one beam steerer configured to control a propagation direction of a beam emitted from the light source; an optical element configured to condense a beam passing through the at least one beam steerer; and a spatial light modulator configured to form a three-dimensional (3d) image by modulating a beam passing through the at least one beam steerer.. .
Fast band pass holographic polymer dispersed liquid crystal
A hyperspectral holographic polymer dispersed liquid crystal (hpdlc) medium comprising broadband reflective properties comprises dopants that result in a hyperspectral hpdlc with fast transitional switching speeds. A technique for fabrication of hyperspectral broadband hpdlc mediums involves dynamic variation of the holography setup during hpdlc formation, enabling the broadening of the hpdlc medium's wavelength response.
Producing images of security features
Processes and systems are described that can produce images including both three dimensional holographic images and two dimensional variable data, which can provide personalized security features in a document. A photosensitive film can be pressed against a first reflective optical device.
See-through head or helmet mounted display device
A see-through head or helmet mounted display device (10) comprises a see-through member (18) having a see-through area (22). The see-through member (18) includes a plurality of display segments (20; 20a, 20b) for emitting visible light.
Digital off-axis heterodyne holographic interferometry
The invention relates to a digital holography method for detecting the vibration amplitude of an object (15) having a vibration frequency ω, comprising: generating object illumination waves (wt) and reference waves (wlo); acquiring interferograms between the reference wave (wlo) and a signal wave (w≯) by means of a bandwidth a s detector (19), the reference wave comprising two components elo, elo1 of frequencies ω1, ω2 that are respectively staggered in relation to the laser frequency ωl by a quantity δ1=γ1ω, and δ2=qω+γ2ωδ, where q is an integer and −0.5≦γ1, γ2≦0.5; and calculating the vibration amplitude of the object from the optical beats spectrum deduced from the complex amplitude of an interferogram.. .
Beam shaping for reconfigurable holographic antennas
A reconfigurable holographic antenna and a method of shaping an antenna beam pattern of a reconfigurable holographic antenna is disclosed. A baseline holographic pattern is driven onto a reconfigurable layer of the reconfigurable holographic antenna while a feed wave excites the reconfigurable layer.
Payment device with holographic security element
An object that enables electronic commerce is disclosed where the object has a holographic image on security contacts. The security contacts may be in communication with a security element that provides security features.
Low cost optical package
An optical package having a patterned submount, an optoelectronic device mounted to the patterned submount, a spacer affixed on one side to the patterned submount, the spacer having a bore hole therethrough wherein the optoelectronic device is positioned, and an optical element affixed to the spacer on a side opposite the patterned submount and covering the spacer bore hole. The patterned submount may be a circuit board.
Image based multiview multilayer holographic rendering algorithm
Algorithms for improved and more efficient rendering of three-dimensional images for use with holographic display systems. These algorithms include creating layers orthogonal to a viewing direction, the separate layers representing different depths in the image.
Disney Enterprises, Inc.
Conversion of complex holograms to phase holograms
Fast processing of information represented in digital holograms is provided to facilitate converting a complex fresnel hologram into a phase-only hologram, which can be a localized error diffusion and redistribution (lerdr) hologram, for displaying 3-d holographic images representative of a 3-d object scene. For a complex fresnel hologram representing a 3-d object scene, a holographic generator component (hgc) can directly apply an lerdr process to the complex hologram to facilitate converting the complex hologram into an lerdr hologram.
City University Of Hong Kong
Method for forming a hydraulic transfer film, hydraulic transfer film, and patterned article
A method for forming a hydraulic transfer film includes: (a) forming a water-soluble sacrificial layer on a water-soluble substrate; (b) forming a first holographic pattern on the water-soluble sacrificial layer; (c) forming a pattern forming layer on the water-soluble sacrificial layer such that the pattern forming layer is formed with a second holographic pattern on a surface that contacts the first holographic pattern and being complementary to the first holographic pattern, the pattern forming layer having a water-soluble region and an oil-soluble region; (d) forming an oil-soluble base layer on the pattern forming layer; and (e) forming an activating layer that is on the oil-soluble base layer and that includes a curable activating agent.. .
Daigin Chemical Co., Ltd.
Selection additives in photopolymers
The invention relates to a method for selecting compounds which can be used as additives in photopolymer formulations for producing light holographic media, and to photopolymer formulations which contain at least one softener which are selected according to the claimed method. The invention also relates to the use of photopolymer formulations for producing holographic media..
Bayer Materialscience Ag
Active liquid crystal diffraction element and phase-modulating holographic display
An active liquid crystal diffraction element includes: a first transparent substrate; a second transparent substrate; a liquid crystal layer; a first electrode; a second electrode; a control member; and an alignment member, wherein the second electrode includes a plurality of small electrodes; the control member controls a magnitude of an electric voltage applied to each of the plurality of small electrodes; the alignment member confers a liquid crystal molecular alignment without any pre-tilt to the liquid crystal layer; and the liquid crystal molecular alignment is parallel to the surface of the first transparent substrate.. .
Reflective diffraction grating and fabrication method
A reflective diffraction grating and a fabrication method are provided. The reflective diffraction grating includes a substrate, a uv-absorbing layer, a grating layer having a binary surface-relief pattern formed therein, and a conforming reflective layer.
Jds Uniphase Corporation
Ultra-high resolution digital holographic camera
A high resolution holographic imaging system. A laser illuminator is configured to operate in two or more wavelengths sequentially and a phase modulator element configured to operate at three or more phase positions.
Holographic microscope, holographic image generation method, and acquiring data for holographic image
The present method includes a data acquisition process and tomographic image generation processes. In the data acquisition process, holograms of an object light and so forth are acquired for each light with a wavelength by changing the wavelengths of the illumination light, off-axis spherical wave reference light, and inline spherical wave reference light.
University Of Hyogo
Imaging lightguide with holographic boundaries
An optical element for a head mounted display (“hmd”) includes a lightguide. The lightguide is embedded in the optical element and optically coupled to receive display light and direct the display light in an eyeward direction.
A sight assembly for mounting to a weapon is provided. A holographic optical element and a light source are provided in a fixed angular configuration with respect to one another, but may be adjusted either together or individually in a horizontal or vertical direction.
Method for selecting photoinitiator systems
The invention relates to a method of selecting photoinitiator systems comprising at least one sensitizer and at least one coinitiator, for photopolymer formulations for producing holographic media.. .
Bayer Materialscience Ag
Digital holographic image recording method and system based on hierarchical hogel
A method and apparatus for enhancing a recording speed in digital holographic image recording is provided, the method including analyzing a target image, generating a plurality of hogels from the target image, and recording the plurality of hogels on a recording medium based on a light modulation scheme, wherein the target image includes a plurality regions, and a size of the plurality of hogels differs based on the plurality of regions of the target image.. .
Electronics And Telecommunications Research Institute
Methodology for a practical flat panel format holographic display utilizing the narrow hologram and holodot concepts
An apparatus for creating a holodot comprising of a low resolution 2 dimensional spatial light modulator (slm) and two crossed striped high resolution spatial light modulators. The first slm creates a 2d image and the second two focus the light into an observer's pupil..