|| List of recent Holographic-related patents
| Image display apparatus|
An image display apparatus includes at least one light source to emit coherent light, a holographic optical element to diffract the coherent light from the light source to produce image light, an optical mechanism to guide the image light from the holographic optical element, at least one detection unit to detect the intensity of the image light, and an adjustment unit to adjust the power of the light source based on the result of detection by the detection unit. An image based on the image light is observed by a viewer..
Alps Electric Co., Ltd.
| Wide-viewing angle holographic display apparatus|
A holographic display apparatus is provided. The holographic display apparatus may include an input optical unit to illuminate coherent parallel light to a spatial light modulator (slm), the slm to generate a plurality of hologram-modulated diffraction beams by illuminating the coherent parallel light in a plurality of directions, or to generate hologram-modulated higher-order diffraction beams by illuminating the coherent parallel light in a single direction, and an optical imaging unit to reproduce at least one holographic three-dimensional (3d) image with different viewpoints on a single imaging area, using the generated at least one diffraction beam..
Electronics And Telecommunications Research Institute
| Compact self-contained holographic and interferometric apparatus|
A compact, self-contained holographic and interferometric apparatus and methods for eliminating vibration, including methods for eliminating relative displacement and vibration errors present in object and reference beam paths, are disclosed. The self-contained apparatus (600) includes an illuminated object (302) that scatters light and an objective lens (304) to form an object beam (350).
Asml Holding N.v.
| Holographic image generation and reconstruction|
Technologies are generally related to holographic imaging. In some examples, techniques are described for generating a holographic image of an object using a plurality of light sources, a shutter, and an image sensor array.
Empire Technology Development, Llc
|Diamond-based tradeable instrument security system|
A tradeable commodity or instrument, a trading system for a plurality of such commodities, a method of trading using such a system and security systems related thereto. The tradeable instrument comprises a secure container constituted by a transparent cover (12), a stone holder pad (14), a set of diamonds (15), a diamond or stone holder (16), a data card (18), a bottom cover (20) and a tamper evident band (22) interconnected into a secure, tamper-evident envelope.
|Converting complex holograms to phase holograms|
Fast processing of information represented in digital holograms is provided to facilitate converting a complex fresnel hologram into a single phase-only hologram, which can be called a bidirectional error diffusion (berd) hologram, for displaying 3-d holographic images representative of a 3-d object scene on a display device. The berd hologram can be capable of representing a 3-d object scene and preserving favorable visual quality on the reconstructed holographic image.
City University Of Hong Kong
Technologies are generally described for generating an image in a holographic imaging device by causing multiple reflections of a hologram reconstruction light on one side of a display panel in the holographic imaging device. An example device may include a display panel, a semi-transparent mirror layer on the display panel, a mirror layer at a side of the semi-transparent mirror layer opposite to the display panel, and a light irradiation unit opposite to the semi-transparent mirror layer.
Empire Technology Development Llc
|Methods and devices for coherent optical data detection and coherent data channel modulation|
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
|Depth key compositing for video and holographic projection|
According to embodiments herein, depth key compositing is the process of detecting specific desired portionsobjects of a digital image using mathematical functions based on depth, in order to separate those specific portionsobjects for further processing. In one particular embodiment, a digital visual image is captured from a video capture device, and one or more objects are determined within the digital visual image that are within a particular depth range of the video capture device.
Ventana 3d Llc
An in-line holographic microscope is used for measurements of micrometer-scale particles and associated suspending fluid medium containing the particles. The system yields heterodyne scattering patterns that may be interpreted with lorenz-mie theory to obtain precise time-resolved information on the refractive index of the suspending medium for determining chemical composition, concentrations and makeup thereof.
New York University
Flow cytometer with digital holographic microscope
The current invention concerns a flow cytometric system and method for observing, analyzing and/or separating objects in a liquid sample, comprising a digital holographic microscope (dhm) and at least one fluidic system, whereby the dhm comprises illumination means, an interferometric system and digital recording means, whereby the fluidic system is capable of guiding said objects through an illumination beam of the illumination means of said dhm, whereby the fluidic system comprises a mechanism for inducing a liquid sample stream through the fluidic system, whereby preferably the fluidic system comprises a stream size controlling device for controlling the transverse dimensions of a liquid sample stream inside said fluidic system, preferably said stream size controlling device is capable of lining up the objects one-by-one or multiple objects at a time in said liquid sample stream.. .
Ovizio Imaging Systems Nv/sa
Composite holographic optical diffuser structure with high frequency overlay and fabrication thereof
The optical diffuser mastering of the subject invention includes legacy microstructure surface relief patterns, along with smaller ones, overlaid on the larger ones. The characteristic features produced by the present invention will be found useful to eliminate visible structures in/on optical diffusers, such as those used in movie projection screens (utilizing either coherent (i.e., laser-generated) and non-coherent (e.g., lamp-generated) light), head-up displays (huds), laser projection viewing, etc., as the present invention produces much sharper images than those afforded by traditional holographic optical diffusers..
Scope guard apparatus and system
According to at least one exemplary embodiment, a scope guard may be coupled to a weapon or other device to protect one or more accessories, such as a scope, holographic sight, red dot sight, reflex sight or the like. Additionally, a scope guard may protect the device or components of the device itself, such as a gun barrel, a gun stock, a gun rail, or a gun action.
Millimeter wave three dimensional holographic scan imaging apparatus and inspecting method thereof
A millimeter wave three dimensional holographic scan imaging apparatus and a method for inspecting an object to be inspected using the same are disclosed. The apparatus includes a millimeter wave transceiver module with a millimeter wave transceiver antenna array for transmitting and receiving a millimeter wave signal.
Millimetre wave three dimensional holographic scan imaging inspecting a human body or an article
The present invention discloses a millimetre wave three dimensional holographic scan imaging apparatus and a method for inspecting a human body or an article. The apparatus comprises a first millimetre wave transceiver module, a second millimetre wave transceiver module, a first guide rail device to which the first millimetre wave transceiver module is connected in slidable form, a second guide rail device to which the second millimetre wave transceiver module is connected in slidable form, a driver configured to drive the first/second millimetre wave transceiver module to move along the first/second guide rail device, and a constrainer configured to constrain kinematic relation between the first and the second millimetre wave transceiver modules such that they only move in directions opposed to each other.
Nuctech Company Limited
Millimeter wave holographic scan imaging human body security inspection
The present invention discloses a millimeter wave holographic scan imaging apparatus for inspecting a human body. The apparatus includes a first millimeter wave transceiver device (40) comprising a first millimeter wave transceiver antenna array (41) for transmitting and receiving a first millimeter wave signal; a second millimeter wave transceiver device (40′), which comprises a second millimeter wave transceiver antenna array (41′) for transmitting and receiving a second millimeter wave signal, and is configured in opposite direction with relation to the first millimeter wave transceiver device; a connection member (26, 27) for connecting the first millimeter wave transceiver device (40) to the second millimeter wave transceiver device (40′); and a drive device (50), which drives one of the first and the second millimeter wave transceiver devices such that the first millimeter wave transceiver device (40) and the second millimeter wave transceiver device (40′) move in opposite directions..
Nuctech Company Limited
Method for manufacturing holographic bi-blazed grating
A method for manufacturing a holographic bi-blazed grating. Two blaze angles of the holographic bi-blazed grating are respectively a blaze angle a and a blaze angle b, and oblique-ion beam etching is performed on two grating areas a and b respectively by using a photoresist grating (12) and a homogeneous grating (14) as masks, thereby implementing different controls on the two blaze angles, and avoiding a secondary photoresist lithography process.
High power ultra-compact, lightweight multi-kilowatt fiber laser system based on coherent & spectral beam combining
A high power fiber laser system consisting of multiple fiber amplifier or laser systems amplifying the input signal in parallel is configured with a high power splitter such as to share some of the gain stages. The high power splitting component consists of high power fiber couplers and splitter(s).
Ipg Photonics Corporation
Multiple beam transmission interferometric testing methods for the development and evaluation of subwavelength sized features within semiconductor and anisotropic devices
Improved methods and systems for inspection imaging for holographic or interferometric semiconductor test and evaluation through all phases of device development and manufacture. Specifically, systems and methods are disclosed for extending the range of optical holographic interferometric inspection for testing and evaluating microelectronic devices and determining the interplay of electromagnetic signals and dynamic stresses to the semiconductor material are provided in which an enhanced imaging method provides continuous and varying the magnification of the optical holographic interferometric images over a plurality of interleaved optical pathways and imaging devices.
Folding holographic sight for a gun
A holographic weapon sight folds for storage or to position where a portion of the sight is out of the way when not in use. Certain embodiments include a readout beam source mounted to the stationary base of the sight and the source directly illuminates a hologram plate supported in a pivotally mounted hologram support when the sight is in a position intended for use..
Method of coding a holographic pattern, a corresponding coding device and computer program
A method for coding at least one holographic pattern recording a light signal representative of light received by a perspective object in a scene. The method includes: determining, from the light signal and for each point xj(1≦j≦m) of the holographic pattern, a set of n light rays passing through the point and corresponding respectively to n different viewing positions for viewing the pattern; generating from the m sets of n determined light rays, a plurality n of two-dimensional views of the object corresponding respectively to the n viewing positions of the pattern, by causing m determined rays to intersect at each of the viewing positions that are contained in a viewing plane parallel to a plane containing the holographic pattern; arranging the n generated views as a multi-view image of the object, the n views corresponding respectively to sub-images of the multi-view image; and compressing the multi-view image..
Device and feedback based digital holographic content reconstruction verification
Provided are a device and a method for feedback based digital holographic content reconstruction verification. The device may include a generator to generate a holographic content by receiving a first parameter value, a reconstructor to reconstruct a hologram from the holographic content, and a feedback based interface to adjust the first parameter value to be a second parameter value by receiving feedback on the hologram..
Electronics And Telecommunications Research Institute
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.
Light source assembly, backlight assembly having the same and display apparatus having the same
A light source assembly includes a red laser diode configured to generate a red laser light, a blue laser diode disposed adjacent to the red laser diode, and configured to generate a blue laser light or a cyan laser light, a green phosphor disposed on the blue laser diode, and configured to change a wavelength of the blue laser light or the cyan laser light, and a holographic diffuser disposed on the green phosphor and the red laser diode. The holographic diffuser is configured to diffuse or scatter the red laser light and is configured to diffuse or scatter the blue laser light or the cyan laser light which passed the green phosphor..
Samsung Display Co., Ltd.
Layer composite consisting of a photopolymer film and an adhesive layer
The present invention relates to a layer composite comprising an exposed photopolymer film and an adhesive layer which is connected to the photopolymer film at least in certain regions, wherein the photopolymer film comprises crosslinked polyurethane matrix polymers a), crosslinked writing monomers b) and a monomeric fluoroethane additive c), wherein the adhesive layer is in the form of a diffusion barrier for the fluoroethane additive c). The invention also relates to the use of the layer composite for producing chip cards, id documents or 3d images, as a product protective label, as a label, in banknotes in the form of a strip or window or as holographically optical elements in displays..
Bayer Intellectual Property Gmbh
Novel fast fourier transform (fft) analysis using waveform-embedded or waveform-modulated coherent beams and holograms
Method of fast fourier transform (fft) analysis for collecting waveforms and other vibrational intelligence and modulating or embedding same into one or more coherent reference beams of an n-dimensional holographic recording device for producing one or more holograms of objects, including singularity points in space. The result provides wholesale differentiation of waveforms distinguishable from others based on their spectral characteristics.
Method of operating a laser and laser apparatus using intra-cavity digital holograms
Laser apparatus includes an output coupler, a gain medium for generating laser light, a rear optical element, and an input coupler. The input coupler is arranged to direct a pump beam to the gain medium and to define an optical path between the output coupler and the rear optical element.
Holographic film and recording method
This invention relates to holographic film for recording multicolor volume holograms, especially full color volume reflection holograms, and to manufacturing techniques for such film, and to corresponding methods of recording multicolor and full-color volume, in particular volume reflection holograms. We describe a holographic film for recording a multicolor volume hologram, the film comprising: a carrier; a first photosensitive recording layer sensitive to one or both of red and green laser light; and a second photosensitive recording layer sensitive to blue laser light.
3-d projection full color multimedia display
Methods and systems are described herein which produce polarization-independent full color images suitable for rear-projection television sets and other multimedia displays. The system uses illumination with r, g, b light from two different light sources for each color.
Corporation For Laser Optics Research
Method of making releasable metalized embossed transfer film
A method is presented for making releasable transfer film suitable to provide a metalized embossed composite onto a paper substrate without a release layer between the composite and a polymeric carrier layer. The transfer film includes a polymeric base layer, an embossing material layer and a metal layer.
Toray Plastics (america), Inc.
Analysis and sorting of objects in flow
A device (1) for sorting objects immersed in a flowing medium is described. The device comprises a holographic imaging unit comprising a plurality of holographic imaging elements (2), a fluid handling unit comprising a plurality of microfluidic channels (3) for conducting flowing medium along a corresponding holographic imaging element (2) and comprising a microfluidic switch (5) arranged downstream of an imaging region in the microfluidic channel for controllably directing each object in the flowing medium into a selected one of a plurality of outlets (6).
Optical illuminating a pixel matrix and/or a controllable spatial light modulator for a display
The invention relates to optical device for illuminating a pixel matrix and/or a controllable spatial light modulator for a display, in particular a stereoscopic or holographic 3d display, wherein the optical device comprises a layer formed as a light waveguide, in which illumination light is guided in a light guiding layer, in particular according to the principle of total internal reflection, between two reflection layers lying opposite one another, wherein an extraction means for extracting illumination light from the light guiding layer is provided. The optical device is characterized in that the extraction means has different properties, in particular different optical properties, at a first extraction position than at another extraction position different to the first extraction position..
Seereal Technologies S.a.
Oaslm-based holographic display
Provided is an optically addressable spatial light modulator (oaslm)-based holographic display and a method of operating the same. The display includes an addressing unit including a light source unit emitting a plurality of recording beams, a driving mirror array including driving mirrors that each reflect a recording beam incident thereon, and a mirror member array including mirror members that each obliquely reflect a recording beam incident thereon, in which each of the driving mirrors corresponds to one of the mirror members.
Cambridge Enterprise Limited
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,
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 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 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.