|| List of recent Holographic-related patents
| 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.
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 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 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.. .