41results about "Hologram form/shape" patented technology

A method and apparatus are provided for aligning optical elements or microbeads 8, wherein each microbead has an elongated body with a code embedded therein along a longitudinal axis thereof to be read by a code reading device. The microbeads 8 are aligned with a positioning device (or cell) 500 having a plate or platform 200, 1252 with grooves 205, 1258 so the longitudinal axis of the microbeads is positioned in a fixed orientation relative to the code reading device. The microbeads 8 are typically cylindrically shaped glass beads having a diffraction grating-based code embedded in the bead 8 disposed along an axis, which requires a predetermined alignment between the incident code readout laser beam and the code readout detector in two of three rotational axes. The geometry of the grooves 205 are designed to allow for easy loading and unloading of beads from a cell, and the grooves 205 may be straight or curved. Also, the cell may be segmented into regions each associated with a different reaction or used for a different identification process / application, and may have many different geometries depending on the application.

The hologram recording sheet according to the invention is made up of a base film and hologram sensitive materials sensitive to different wavelength regions formed therein in a desired pattern, or a film and at least two hologram recording sensitive materials sensitive to different wavelength regions laminated on the film with a transparent plastic spacer layer located therebetween, thereby enabling the required diffraction light wavelengths to be recorded on the required sites without producing unnecessary interference fringes. At least two hologram recording sensitive materials sensitive to different wavelength regions are formed on different sites on a film in dotted or striped configuration, the size of which is up to 200 mm or at least twice as large as the thickness of the sensitive material layers, thereby enabling regions diffracting light of different wavelengths to be formed in the form of independent sets of interference fringes.

Microparticles 8 includes an optical substrate 10 having at least one diffraction grating 12 disposed therein. The grating 12 having a plurality of colocated pitches Λ which represent a unique identification digital code that is detected when illuminated by incident light 24. The incident light 24 may be directed transversely from the side of the substrate 10 with a narrow band (single wavelength) or multiple wavelength source, in which case the code is represented by a spatial distribution of light or a wavelength spectrum, respectively. The code may be digital binary or may be other numerical bases. The micro-particles 8 can provide a large number of unique codes, e.g., greater than 67 million codes, and can withstand harsh environments. The micro-particles 8 are functionalized by coating them with a material / substance of interest, which are then used to perform multiplexed experiments involving chemical processes, e.g., DNA testing and combinatorial chemistry.

A method and apparatus for labeling an item using diffraction grating-based encoded optical identification elements 8 includes an optical substrate 10 having at least one diffraction grating 12 disposed therein. The grating 12 has one or more colocated pitches Λ which represent a unique identification digital code that is detected when illuminated by incident light 24. The incident light 24 may be directed transversely from the side of the substrate 10 (or from an end) with a narrow band (single wavelength) or multiple wavelength source, and the code is represented by a spatial distribution of light or a wavelength spectrum, respectively, or a combination thereof. The element 8 can provide a large number of unique codes, e.g., greater than 67 million codes, and can withstand harsh environments. The encoded element 8 may be used to label any desired item, such as large or small objects, products, solids, powders, liquids, gases, plants, minerals, cells and / or animals, or any combination of or portion of one or more thereof. The label may be used for many different purposes, such as for sorting, tracking, identification, verification, authentication, anti-theft / anti-counterfeit, security / anti-terrorism, or for other purposes. In a manufacturing environment, the elements 8 may be used to track inventory for production information or sales of goods / products.

Microparticles 8 includes an optical substrate 10 having at least one diffraction grating 12 disposed therein. The grating 12 having a plurality of colocated pitches Λ which represent a unique identification digital code that is detected when illuminated by incident light 24. The incident light 24 may be directed transversely from the side of the substrate 10 with a narrow band (single wavelength) or multiple wavelength source, in which case the code is represented by a spatial distribution of light or a wavelength spectrum, respectively. The code may be digital binary or may be other numerical bases. The micro-particles 8 can provide a large number of unique codes, e.g., greater than 67 million codes, and can withstand harsh environments. The micro-particles 8 are functionalized by coating them with a material / substance of interest, which are then used to perform multiplexed experiments involving chemical processes, e.g., DNA testing and combinatorial chemistry.

An optical identification element having a synthesized chemical attached thereto includes an optical substrate having at least one diffraction grating disposed therein, the grating having a resultant refractive variation at a grating location, said grating being embedded within a substantially single material of said optical substrate; the grating providing an output optical signal indicative of a code when illuminated by an incident light signal propagating in free space, the code identifying at least one of the element and the chemical, the output signal not being a result of laser action with the grating when illuminated by said incident light signal; and the synthesized chemical being attached to the substrate.

The present invention provides for a method of producing an optical device by means of electron beam lithography and including the step of varying the characteristics of the electron beam spot during formation of the device and also an apparatus for producing diffractive optical devices and / or holographic devices by means of electron beam lithography and including an electron beam lithograph, controlling and processing means, means for varying the characteristics of the electron beam spot during formation of the device, and wherein the processing means is arranged for compiling and pre-processing data and for providing optimisation and allocation control and to optical devices such as those produced thereby.

An optical identification element 8 includes an optical substrate 10 having at least one diffraction grating 12 disposed therein. The grating 12 has a one or more of collocated pitches A which represent a unique identification N bit digital code that is detected when illuminated by incident light 24. The incident light 24 may be directed transversely onto the side or onto an end of the substrate 10 with a narrow band (single wavelength) or multiple wavelength source, in which case the code is represented by a spatial distribution of light or a wavelength spectrum, respectively. The element 8 can provide a large number of unique codes, e.g., greater than 67 million codes, and can withstand harsh environments. The element 8 can be used in any application that requires sorting, tagging, tracking or identification, and can be made on a micron scale “microbeads” if desired, or larger “macro-elements” for larger applications. The code may be digital binary or may be other numerical bases.

Microparticles 8 includes an optical substrate 10 having at least one diffraction grating 12 disposed therein. The grating 12 having a plurality of colocated pitches Λ which represent a unique identification digital code that is detected when illuminated by incident light 24. The incident light 24 may be directed transversely from the side of the substrate 10 with a narrow band (single wavelength) or multiple wavelength source, in which case the code is represented by a spatial distribution of light or a wavelength spectrum, respectively. The code may be digital binary or may be other numerical bases. The micro-particles 8 can provide a large number of unique codes, e.g., greater than 67 million codes, and can withstand harsh environments. The micro-particles 8 are functionalized by coating them with a material / substance of interest, which are then used to perform multiplexed experiments involving chemical processes, e.g., DNA testing and combinatorial chemistry.

A method for manufacturing a diffusion grating-based optical identification element is provided. The optical identification element includes a known fiber substrate, having a diffraction grating disposed therein the grating being indicative of a code when exposed to incident light. A large number of elements or microbeads all having the same identification codes can be manufactured by cutting the substrate transversely where the grating is located, thereby creating a plurality of elements, at least two of the elements having the grating therein along substantially the entire length of the elements. The elements may be manufactured in many different ways, including winding the fiber onto a basket, forming the gratings in the basket openings or bays, removing the fiber and cutting the fiber to form the elements 8. Each bay may have a set of elements with a unique set of codes therein.

The present invention provides for a system and method for product verification for use with products intended to be introduced into circulation and including machine readable product data, and comprising a product data storage means, at least one portable reading device for said machine readable product data, wherein the machine readable product data is applied to products and is arranged for inspection by the at least one portable reading device remotely from the product data storage means and at at least one point in the product circulation route, and wherein the at least one portable reading device is arranged to verify the authenticity of the machine readable product data and thereby verify the authenticity of the product itself.

The invention provides a transfer ribbon having a layered structure in which a substrate, a relief layer and a reflection layer are laminated in this order, wherein the relief layer comprises an ionizing radiation-cured resin. The transfer ribbon can precisely transfer fine dots and / and dots placed close to each other with a low energy and at a high speed without any of burrs, chippings or lacks by means of a thermal head. Also, the invention provides an image expressing medium, which can be produced using the transfer ribbon described above, and comprises a support, a color layer and plural dots of relief hologram and / or diffraction grating. In the medium: the color layer and the dots are disposed on the same surface of the support; and the each dot has an area in a range from 0.0001 to 0.09 mm2; the each dots has a diffraction direction different from that of at least one of adjacent dots, or the dot has two or more sections each of which has a diffraction direction different from each other. The image expressing medium exhibits specially decorative effects such as a lame-like effect.

A method for forming fine concavo-convex patterns by using a relief formation material 3 having a relief formation layer 2 composed of a resin having thermoplasticity and a relief pattern sheet 6 having on a surface thereof fine concavo-convex patterns 5, wherein a photothermal conversion layer 7 is formed in the relief formation material 3 or the relief pattern sheet 6; the photothermal conversion layer 7 is irradiated with light 8 to make the photothermal conversion layer 7 generate heat in the state that the relief formation layer 2 is brought into contact with the fine concavo-convex patterns 5; and the fine concavo-convex patterns 5 are formed on the relief formation layer 2.

The inventive method for recording data on an optical lens (2) consists in recording a data-containing source image, in generating the hologram (3) of the image source and in recording said hologram on the lens surface portion ranging from 0.5 mm<2> to 15 mm<2>. The data can be readout by illuminating said lens by means of a light beam (101) in the hologram area. A read-out image (105, 106) which reproduces the source image and on which data is readable is formed at a distance from the lens. Said lens can be embodied, in particular in the form of an ophthalmic lens.

A method and apparatus are provided for aligning optical elements or microbeads 8, wherein each microbead has an elongated body with a code embedded therein along a longitudinal axis thereof to be read by a code reading device. The microbeads 8 are aligned with a positioning device (or cell) 500 having a plate or platform 200, 1252 with grooves 205, 1258 so the longitudinal axis of the microbeads is positioned in a fixed orientation relative to the code reading device. The microbeads 8 are typically cylindrically shaped glass beads having a diffraction grating-based code embedded in the bead 8 disposed along an axis, which requires a predetermined alignment between the incident code readout laser beam and the code readout detector in two of three rotational axes. The geometry of the grooves 205 are designed to allow for easy loading and unloading of beads from a cell, and the grooves 205 may be straight or curved. Also, the cell may be segmented into regions each associated with a different reaction or used for a different identification process / application, and may have many different geometries depending on the application.

A method for manufacturing a diffusion grating-based optical identification element is provided. The optical identification element includes a known optical substrate, having an optical diffraction grating disposed in the volume of the substrate. A large number of substrates or microbeads having unique identification codes can be manufactured by winding a substrate, such as a fiber, around a polygonal shaped cage / basket to form a fiber ribbon having flat sections. A grating writing station writes one or more gratings into each flat section to form a unique code to this section. Each flat section of fibers of the fiber ribbon is written with the same gratings to provide the same identification code, or alternatively each flat section may be have a different grating(s) written therein so that each section has a different identification code. The fiber ribbon is then removed from the cage and diced to form a groups of optical identification elements, each group having unique optical identification codes.

A hologram medium manufacturing method is disclosed. The hologram medium manufacturing method includes: disposing a first pair of master hologram media with a predetermined interval so that the first pair of the master hologram media face each other; forming a master hologram in the master hologram media by irradiating the first pair of the master hologram media with spherical wave light and reference light so that the spherical wave light and the reference light interfere with each other in the master hologram media, the spherical wave light and the reference light having a focal point between the first pair of the master hologram media; disposing a hologram medium between the first pair of the master hologram media; and forming a hologram in the hologram medium by irradiating the first pair of the master hologram media with the reference light.

The hologram recording sheet according to the invention is made up of a base film and hologram sensitive materials sensitive to different wavelength regions formed therein in a desired pattern, or a film and at least two hologram recording sensitive materials sensitive to different wavelength regions laminated on the film with a transparent plastic spacer layer located therebetween, thereby enabling the required diffraction light wavelengths to be recorded on the required sites without producing unnecessary interference fringes. At least two hologram recording sensitive materials sensitive to different wavelength regions are formed on different sites on a film in dotted or striped configuration, the size of which is up to 200 mm or at least twice as large as the thickness of the sensitive material layers, thereby enabling regions diffracting light of different wavelengths to be formed in the form of independent sets of interference fringes.

A method for producing an optical element, preferably a security feature, wherein a film having a first embossed hologram in an embossing layer is provided, and a second embossed hologram is embossed into the same embossing layer such that the first embossed hologram is partly replaced with the second embossed hologram. The invention further relates to a method for producing an optical element wherein an embossable film provided with an embossed hologram is partly filled with printing lacquer, and a method for producing an optical element wherein hologram embossing is prevented by prior partial printing of the embossing film with curable printing lacquer. The invention relates further to optical features producible by the inventive methods, documents of value having an inventive optical feature and a numbering embosser for use in an inventive production method.

A method of recording a surface relief microstructure in a record medium comprises: i) causing a coherent reconstruction or replay beam to impinge on a holographic optical element assembly, the holographic optical element assembly including a holographic optical element (HOE), the assembly causing selected portions of the beam to interfere at a focal region after diffraction by the holographic optical element so as to reconstruct a real image of an aperture previously used to construct the HOE; ii) locating a record medium at the focal region so that the real image is recorded; and, iii) causing relative movement between the record medium and the interfering beam portions and repeating steps i) and ii) so that the real image is recorded at a plurality of locations or pixels on the record medium.

A multi-viewpoint image recording medium includes at least one main image recorded on the multi-viewpoint image recording medium and a plurality of sub-images, each having a display area smaller than a display area of the main image, recorded on the multi-viewpoint image recording medium. The main image and the plurality of sub-images are simultaneously displayed when the main image and the plurality of sub-images are reproduced. At least one of the plurality of sub-images changes in accordance with movement of a viewpoint.

A master holographic media storing large quantities of holographic media is disclosed. Holographic images may be recorded onto individual Child Plates. A Child Plate may be obtained by culling a portion of a starting or working parent holographic plate with the Child Plate portion comprising all the necessary data required for holographic image reconstruction. A series of plurality of Child Plates are arranged on and compiled to the master holographic media. The resulting information stored on the master holographic media is capable of being displayed as a continuous three-dimensional holographic image.

According to one embodiment, there is provided an optical film with a recording surface, the recording surface including: a computation element section in which a phase component of light from each reconstruction point of a reconstructed image is computed, the computation element section corresponding to each reconstruction point one by one; a phase angle recording area in which a phase angle computed based on the phase component is recorded; and a phase angle non-recording area in which the phase angle is not recorded, the phase angle computed based on the phase component being recorded in an overlapping area where the computation element section and the phase angle recording area overlap each other.

A method for producing an optical recording medium, includes: filling a plurality of spaces with a liquid photosensitive material, wherein each of the plurality of spaces is surrounded by a surface of a sheet material and partition walls that are formed on the surface of the sheet material for separating a plurality of recording areas, and the surface of the sheet material has recessed parts at positions where the plurality of recording areas is to be formed, each of the recessed parts protruding and deformed to a back surface side of the sheet material so as to have a volume in relation to a volumetric shrinkage factor of the photosensitive material; and pressing a member having a substantially flat surface to a back surface of the sheet material to make the recessed parts substantially flat and heating and hardening the photosensitive material to form the plurality of recording areas.

The inventive method for recording data on an optical lens (2) consists in recording a data-containing source image, in generating the hologram (3) of the image source and in recording said hologram on the lens surface portion ranging from 0.5 mm<2> to 15 mm<2>. The data can be readout by illuminating said lens by means of a light beam (101) in the hologram area. A read-out image (105, 106) which reproduces the source image and on which data is readable is formed at a distance from the lens. Said lens can be embodied, in particular in the form of an ophthalmic lens.