|| List of recent Holographic-related patents
| Holographic amusement/wagering system with vehicular user transport|
A virtual entertainment system supports holographic display for multiple players. The system has multiple viewing screens, each screen displaying thematic events.
| Shared and private holographic objects|
A system and method are disclosed for displaying virtual objects in a mixed reality environment including shared virtual objects and private virtual objects. Multiple users can collaborate together in interacting with the shared virtual objects.
|Material analysis system, method and device|
The invention relates to a system and method of analysing material as well as to an apparatus for analysing material, particularly, though not necessarily exclusively, biomaterial. The invention entails receiving holographic intensity data comprising at least a holographic intensity pattern associated with a sample of the material of interest and processing, by applying image processing algorithms and techniques, the received holographic intensity data at least to perform one or both steps of detecting and identifying at least one object of interest in the sample thereby at least to generate a suitable output..
|Display with observer tracking|
The invention relates to a display, in particular an autostereoscopic or holographic display, for representing preferably three-dimensional information, wherein the stereo views or the reconstructions of the holographically encoded objects can be tracked to the movements of the associated eyes of one or more observers in a finely stepped manner within a plurality of zones of the movement region. In this case, the zones are selected by the activation of switchable polarization gratings..
|Method and apparatus for interactive display of three dimensional ultrasound images|
A medical imaging system comprises a three dimensional (3d) ultrasound system and a 3d holographic display system. The ultrasound system generates 3d ultrasound data that can be used to construct a 3d image of a patient.
|Optical beam routing apparatus and methods|
This invention relates to methods and apparatus for routing light beams in telecommunications devices using holographic techniques, in particular by displaying kinoforms on lcos (liquid crystal on silicon) devices. Thus we describe optical beam routing apparatus comprising: at least one optical input to receive an input beam; a plurality of optical outputs; a spatial light modulator (slm) on an optical path between said optical input and said optical outputs; and a driver for said slm to display a kinoform on said slm to diffract said input beam into an output beam comprising a plurality of diffraction orders, wherein a routed one of said diffraction orders is directed to at least one selected said optical output; wherein said apparatus is configured to modify a wavefront of said output beam to reduce a coupling of said output beam into said selected optical output; and wherein said kinoform is adapted to compensate for said wavefront modification to compensate for said reduced coupling and thereby to reduce a coupling of other diffracted light from said input beam into others of said optical outputs than said at least one selected optical output..
|Holographic display extension for portable device and method of manufacturing same|
A display extension for a device with a display includes a substantially transparent screen and positioning means adapted to position the substantially transparent screen at an acute angle relative to the display. The substantially transparent screen includes at least one zone of increased reflectivity..
|Infrared holographic projector for thermal masking and decoys|
A holographic structure, system and method project a grey-scale image in a narrow ir spectral band that is related to a broadband thermal signature of an object. The projected grey-scale image, when integrated over the broadband, forms either a decoy that approximates the thermal signature of the object or a mask that obscures the thermal signature of the object.
|Tunable electro-optic filter stack|
A holographic polymer dispersed liquid crystal (hpdlc) tunable filter exhibits switching times of no more than 20 microseconds. The hpdlc tunable filter can be utilized in a variety of applications.
|Method for manufacturing holographic blazed grating|
A method for fabricating a holographic blazed grating is provided. The method includes: coating a photoresist layer on a substrate; performing lithography on the photoresist layer to form a photoresist grating; performing vertical ion beam etching on the substrate by using the photoresist grating as a mask, to form a homogeneous grating by transferring a pattern of the photoresist grating onto the substrate; cleaning the substrate to remove remaining photoresist; performing tilted ar ion beam scanning etching on the substrate by using the homogeneous grating as a mask, and etching different portions of the substrate by utilizing a obscuring effect of the homogeneous grating mask on the ion beam, to form a triangular groove shape of the blazed grating; and cleaning the substrate to obtain the holographic blazed grating..
|Sample vial for digital holographic analysis of a liquid cell sample|
The current invention concerns a sample vial for receiving a liquid cell sample, to be used in conjunction with a digital holographic microscope (dhm), said sample vial comprises at least two compartments in fluid connection with one another, said compartments comprising at least one pair of screening surfaces, said screening surfaces are essentially flat; and characterized in that the distance between the pair of screening surfaces of the second compartment is smaller than the distance between the pair of screening surfaces of the first compartment. In a second and third aspect, the current invention pertains to a method and system for analyzing a liquid cell sample by dhm, employing the sample vial of the current invention..
|Photosensitive material, holographic recording medium and holographic recording method|
A photosensitive material includes: a polymer matrix, a radical polymerization monomer and photo-radical polymerization initiator, wherein the polymer matrix has stable nitroxy radical at side chain thereof, wherein a molar ratio of the stable nitroxy radical to the radical polymerization monomer is set within a range of 0.03 to 0.25.. .
|Wide viewing angle holographic image display method and apparatus|
A wide viewing angle holographic image display method and apparatus are disclosed. The wide viewing angle holographic image display apparatus includes a scan line unit and a control unit.
|Complex spatial light modulator and 3d image display including the same|
A complex spatial light modulator for modulating a phase and amplitude of a light beam and a 3-dimensional (3d) display including the same are provided. The complex spatial light modulator includes a spatial light modulator modulating a phase of a light beam, a lenticular lens array disposed next to the spatial light modulator, and a volume holographic lens array spaced apart from the lenticular lens array and allowing light beams output from the lenticular lens array to be superimposed and to interfere with each other, and so that the phase and an amplitude of the light beam are simultaneously modulated..
|Digital holographic microscope|
A digital holographic microscope is provided. The digital holographic microscope includes a light source, a grating, an image sensing device, and an optical module.
|Tracking and characterizing particles with holographic video microscopy|
In-line holography to create images of a specimen, such as one or more particles dispersed in a transparent medium. Analyzing these images with results from light scattering theory yields the particles' sizes with nanometer resolution, their refractive indexes to within one part in a thousand, and their three dimensional positions with nanometer resolution.
|3-d holographic imaging flow cytometry|
Refractive index of biological specimens is a source of intrinsic contrast that can be explored without any concerns of photobleaching or harmful effects caused by extra contrast agents. This feature also contains rich information that can be related to the metabolism of cells at the cellular and subcellular levels.
|Hologram processing method and system|
The invention relates to a hologram, or holographic intensity data, processing method and system. The system implements the method which comprises receiving holographic intensity data comprising at least a holographic intensity pattern or image at a discrete location in a propagation space, the propagation space comprising the three-dimensional space over which light waves or illumination forming the holographic intensity pattern propagates.
|Portable digital holographic probe for the inspection of optical fiber connectors, and inspection system and method for the same|
A portable inspection probe for the inspection of a recessed mating surface of an optical fiber connector is provided. In one variant, the portable inspection probe includes a digital holographic detection module operable to digitally record a hologram of the recessed mating surface, and a rigid probe tip configured to be optically coupled to the digital holographic detection module and shaped to provide optical access to the recessed mating surface.
|Measurement method and device for performing the measurement method|
The present invention relates to a measurement method in which, by predetermined illumination by means of a display device, in particular a holographic or autostereoscopic display device, with an intensity distribution of the illumination light in a plane of a light source image, a first location of an object, in particular an observer of the display device, is marked, and wherein the relative position of the first location in relation to a second location of the object is determined in a coordinate system of a camera.. .
|Method of remote presentation of a live sporting activity|
A method of presenting a sporting event at a plurality of venues in real time or nearly real time. The images and sounds of persons participating in a live sporting event at a live venue are captured using a plurality of cameras and microphones.
|Personal holographic billboard|
Methods for generating and displaying personalized virtual billboards within an augmented reality environment are described. The personalized virtual billboards may facilitate the sharing of personalized information between persons within an environment who have varying degrees of acquaintance (e.g., ranging from close familial relationships to strangers).
|Holographic snap grid|
Methods for positioning virtual objects within an augmented reality environment using snap grid spaces associated with real-world environments, real-world objects, and/or virtual objects within the augmented reality environment are described. A snap grid space may comprise a two-dimensional or three-dimensional virtual space within an augmented reality environment in which one or more virtual objects may be positioned.
|Holographic object feedback|
Methods for providing real-time feedback to an end user of a mobile device as they are interacting with or manipulating one or more virtual objects within an augmented reality environment are described. The real-time feedback may comprise visual feedback, audio feedback, and/or haptic feedback.
|Wind machine with propeller mounted bird repellent strips|
A bird repellent system for a wind machine with propeller blades mounted to a propeller hub on a mast, each propeller blade having a propeller tip at a distal end of the propeller blade, and a bird repellant ribbon attached to the propeller tip, so rotation of the propeller blades generates a wind stream parallel to a ground surface, to impart an action to the bird repellant ribbon. The bird repellent ribbon can be made from a mylar type of plastic film, and have holographic reflective features.
|Method for producing a holographic film|
The invention relates to a method for producing holographic films, in which a photopolymer formulation is provided which comprises as constituents matrix polymers, writing monomers, a photoinitiator system, optionally a non-photopolymerizable component and optionally catalysts, radical stabilizers, solvents, additives and other auxiliaries and/or additives. The photopolymer formulation is applied in a planar manner and in the form of a film on a support film and the photopolymer formulation is dried on the support film at a temperature 60<t<120 deg c., wherein only compounds are selected as components for the photopolymer formulation, the tga 95 values of which are >100 deg c.
|Method for producing holographic media|
The invention relates to a method for producing holographic media, wherein a photopolymer formulation comprising matrix polymers, writing monomers, a photoinitiator system, and optionally auxiliary materials and additives as components is provided, the photopolymer formulation is applied as a coating on the surface of a carrier film and the photopolymer formulation is dried on the carrier film at a temperature xx<t>yy deg c., wherein only those compounds having tga 95 values >100 deg c. And at least 30 deg c.
|Full-parallax acousto-optic/electro-optic holographic video display|
A full-parallax acousto-optic/electro-optic holographic video display includes a control layer and a piezo-electric layer, which includes a substrate and an array of anisotropic waveguide elements. Each waveguide element guides light into a single polarization and includes a horizontal grating, which diffracts light horizontally and comprises surface acoustic waves, and vertical grating, which diffracts light vertically and includes an electro-optic phased array.
|Anisotropic leaky-mode modulator for holographic video displays|
An anisotropic spatial acousto-optic modulator for a holographic display system includes a substrate, an anisotropic waveguide that guides light into a single polarization, and a transducer that generates surface acoustic waves that propagate linearly with the guided, polarized light, converting at least some of the polarized light into a leaky mode of orthogonally polarized light. The acoustic waves may be encoded with holographic information.
|Holographic medium having a protective layer|
This invention relates to a holographic medium comprising a protective layer and a photopolymer film which is bonded to the protective layer and contains polyurethane matrix polymers, acrylate writing monomers and photoinitiators, wherein the protective layer is impermeable to the constituents of the photopolymer film, is optically clear and is transparent to electromagnetic radiation having a wavelength in the range of from 350 to 800 nm. The invention further provides the use of a holographic medium according to the invention in the production of holograms, and a process for the production of a holographic medium according to the invention..
|Chain transfer reagents in polyurethane-based photopolymer formulations|
The present invention relates to photopolymer formulations comprising: matrix polymers (a), obtainable by reacting at least one polyisocyanate component (a) and one isocyanate-reactive component (b); a writing monomer (b); a photoinitiator (c); a catalyst (d); and a chain transfer reagent (e). A holographic medium that contains a photopolymer formulation according to the invention or can be obtained by using it, the use of a photopolymer formulation according to the invention for manufacturing holographic media, and a method for producing a holographic medium by using a photopolymer formulation according to the invention are also subject matter of the invention..
|Grey-scale holographic structure and system for generating a millimeter-wave collimated wavefront in a compact range|
Embodiments of a grey-scale holographic structure and system for generating a collimated wavefront in a compact range are generally described herein. In some embodiments, the grey-scale holographic structure comprising millimeter-wave transmissive material having a surface arranged to provide differing amounts of phase-delay to an incident millimeter-wave wavefront as the incident wavefront passes through the material.
|Holographic image display device and method for driving the same|
Disclosed are a holographic image display device and a method for driving the same which may stabilize luminance of a holographic image and reduce flicker. The holographic image display device includes a laser backlight unit, a surface light converter converting laser light emitted from the laser backlight unit into surface light-type laser light and emitting the surface light-type laser light, a spatial light modulator (slm) implementing an input holographic interference pattern and projecting a holographic image at a viewing point using the surface light-type laser light, and an optical switching unit located between the laser backlight unit and the slm and controlling polarization of the laser light.
|Course integral holographic display|
A holographic display system for generating a super hologram with full parallax in different fields of view in the horizontal and vertical directions. The system includes an array of holographic display devices, e.g., spatial light modulators (slms), operable to provide a plurality of holographic images of a scene from differing viewpoints of the scene.
|Cooperative 3d work station|
A display apparatus for depicting a three-dimensional scenario includes a first and a second projection device, and a holographic display device having a first and a second holographic unit. A depiction apparatus includes a number of the display apparatuses for the depiction and cooperative processing of a three-dimensional scenario by a number of users that each observe the three-dimensional scenario from an individually determinable perspective..