Abstract:
Procédé de fabrication de pièce comportant les étapes suivantes: a) déposition d'une couche diffractive sur un substrat,; b) déposition d'une première couche de résine photosensible sur ladite couche diffractive; c) illumination de ladite première couche de résine photosensible au travers d'un premier photomasque, de manière à supprimer sélectivement des portions de ladite résine photosensible; d) gravure de la couche diffractive aux endroits non recouverts par ladite résine photosensible; e) suppression de la première couche de résine photosensible; f) déposition d'une couche conductrice par-dessus le substrat respectivement par-dessus les portions de couche diffractive qui subsistent; g) déposition d'une seconde couche de résine photosensible h) illumination de ladite couche de résine photosensible au travers d'un deuxième photomasque, de manière à supprimer sélectivement des portions dudit deuxième résine photosensible; i) déposition par électroformage au-dessus de ladite couche conductrice, entre les portions subsistantes de deuxième résine photosensible; j) libération de la pièce par enlèvement au moins de la résine photosensible.
Abstract:
A system for generating and displaying holographic visual aids associated with a story to an end user of a head-mounted display device while the end user is reading the story or perceiving the story being read aloud is described. The story may be embodied within a reading object (e.g., a book) in which words of the story may be displayed to the end user. The holographic visual aids may include a predefined character animation that is synchronized to a portion of the story corresponding with the character being animated. A reading pace of a portion of the story may be used to control the playback speed of the predefined character animation in real-time such that the character is perceived to be lip-syncing the story being read aloud. In some cases, an existing book without predetermined AR tags may be augmented with holographic visual aids.
Abstract:
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. The method comprises determining one or more data key-points of at least one potential object of interest (19) in the received holographic intensity data, and also comparing the determined one or more data key-points to at least one pre-determined propagation space invariant object descriptor associated with an object to determine a match in order to identify or detect the object and determine its location in the propagation space.
Abstract:
Procédé de localisation d'un élément physique compris dans un terrain. Il est proposé un procédé de localisation d'un élément physique (201, 202), compris dans un terrain, comprenant : - une étape d'obtention d'un ensemble de données physiques géoréférencées dudit terrain, chacune desdites données physiques géoréférencées obtenues étant définie par au moins trois coordonnées correspondant à une longitude, une latitude et un paramètre physique; - une étape de traitement desdites données physiques géoréférencées dudit ensemble; - une étape de localisation d'un élément physique d'intérêt en fonction d'au moins une anomalie détectée par ladite étape de traitement. L'étape de traitement est remarquable en ce qu'elle comprend: - une étape de modification des coordonnées z pour au moins une partie des données physiques géoréférencées dudit ensemble pour ledit terrain; - une étape d'interpolation desdites données physiques géoréférencées dudit ensemble; - une étape de détection et d'amplification d'au moins une anomalie.
Abstract:
A system and method for generating a simulated three-dimensional object is disclosed. An initial image of a three-dimensional object is generated at an initial reference position on X, Y and Z axes. A number of displacement images of the object is generated at each of a number of angular offsets about one or more of the X, Y, or Z axes. Each of the displacement images are displayed on an electronic display in a sequence according to a direction around one or more of the X, Y, or Z axes. The electronic display is then rotated around the one or more of the X, Y, or Z axes at a speed synchronized to the spaced angles of displacement of the plurality of images.
Abstract:
A method of manufacturing an article for display of a holographic image is described that includes thermally fusing a holographic recording medium containing a photochemically active dye dispersed in a transparent thermoplastic polymer binder to another layer or material; and then exposing the holographic film to intersecting beams of coherent light to form a holographic image therein formed by photoreacted areas of the photochemically active dye and unreacted areas of the photochemically active dye.
Abstract:
A method of making a hologram (10) includes recording a first hologram in a holographic recording medium (14) at a first deformation ratio; changing the first deformation ratio to a second deformation ratio that is different from the first deformation ratio; and recording a second hologram in the holographic recording medium (14) at the second deformation ratio to form a recorded holographic medium.
Abstract:
The invention relates to security technologies, in particular, holographic protection systems and can be applied to the high level protection of products from counterfeits. The proposed polarization-holographic protection system includes polarization-holographic protective elements, in which a polarization code is recorded and a device for identification of this code. The recording of a code on the polarization-holographic protective element is done by a polarization-holographic method in the form of one concrete combination of polarization state of two recording beams that is preselected from a great number of combinations of polarization states. The reading laser beam (3), when incident on the polarization-holographic protective element (4), diffracts on it and the polarization state of the diffracted beams is the code for identification of the authenticity of the element. Authenticity of a protective element is carried out by means of a special identifying device comprising a polarization-holographic element (5).
Abstract:
A method for imparting topical holographic effect to a polymeric film substrate (20) comprising a first surface and a second surface. The method comprises the steps of embossing the first surface (25) of the polymeric film substrate (20) to impart a holographic effect to the polymeric film substrate and printing the embossed first surface of the polymeric film substrate with ink and/or varnish on selected area (24) which is intended not to have holographic effect and leaving the unprinted embossed area to provide a holographic effect.
Abstract:
Идентификационная метка выполнена в виде сформированного на полированной поверхности изделия оптически визуализируемого изображения, организованного в виде дифракционной структуры, в частности, микроштрихов синусоидального профиля, в совокупности образующих дифракционное растровое изображение метки. Дифракционная структура пространственно организована по типу отражательной фазовой дифракционной решетки, функционально являющейся средством повышения контраста и изменения цветового тона спектра излучения в процессе визуализации изображения метки под углом дифракции в отраженном свете. При этом микроструктуры дифракционной структуры выполнены на глубину, не превышающую допустимую величину микронеровностей полировки драгоценных камней. Ценное изделие имеет полированную поверхность с маркировкой в виде идентификационной метки.