Abstract:
A method of forming a pattern with the use of a novel photosensitive composition capable of patterning through photoirradiation without undergoing development. A photosensitive composition comprising a photochromic compound having a ring capable of reversible ring opening-ring closure by light and/or heat so as to exhibit photochromism and a polymer compound as a matrix, the ring having the structure of the formula (I): (R 1 and R 2 are substituents and may form a ring; and R 3 is a substituent) or the formula (II): (R 4 and R 5 are substituents) is provided and irradiated with rays containing ring opening wavelength ray capable of ring opening and ring closure wavelength ray capable of ring closure to thereby carry out a mass transfer of the photosensitive composition.
Abstract translation:使用能够通过光照射进行图案化而不经历显影的新型光敏组合物形成图案的方法。 一种光敏组合物,其包含光致变色化合物,所述光致变色化合物具有通过光和/或热可逆开环闭合的环以显示光致变色和高分子化合物作为基质的环,所述环具有式(I)的结构:( R 1和R 2是取代基并且可以形成环; R 3是取代基)或式(II):(R 提供4< 4>和R 5< 5> 5< 5>取代基)并用包含能够开环的开环波长光线和能够闭环的闭环波长光线的射线照射,从而进行 感光组合物的传质。
Abstract:
The present invention relates to the field of photo-chromic materials, in particular, to photo-chromic compounds and matrices suitable for use in optical memory systems, including three-dimensional optical memory systems for computers, multimedia applications, and the like. In particular, nonfluorescent spiropyrane is transformed into fluorescent merocyanine by electromagnetic radiation.
Abstract:
Die vorliegende Erfindung betrifft ein Sicherheits-und/oder Wertdokument mit einem Hologramm in einem visuell schaltbaren Fenster als neuartiges Sicherheitselement sowie ein Verfahren zu dessen Herstellung.
Abstract:
Disclosed herein are novel nitrone compounds, holographic recording media that include the nitrone compound(s) and a polymer binder, a method of manufacturing a holographic recording medium where the nitrone compound, as a photochromic dye, is mixed with a polymer binder to form a holographic composition and molding the holographic composition into holographic data recording medium. Disclosed herein too is a method for recording a hologram by exposing the holographic recording medium to mutually coherent signal and reference light sources at a wavelength that causes a change in the chemical structure of the nitrone compound.
Abstract:
The invention relates to a data carrier (1) comprising a memory layer (2), which contains a dye that can be altered by exposure. Said carrier is used to store micro-images, by means of a writing beam of a writing device.
Abstract:
Technologies are generally described for generating a holographic image of an object and a background image of the object. In various examples, a holographic image generation apparatus is described, where a light beam from a light source may be provided to a beam splitter, which may split the light beam into a first light beam that can be irradiated on and scattered by the object to generated an object light beam, and a second light beam that can be reflected by a mirror to generate a reference light beam. Some example apparatus can also include a first image sensor configured to detect a first image of interference caused by the reference light beam and the object light beam, and a second image sensor configured to detect a second image of background of the object.
Abstract:
Articles (11) for recording a holographic image are described. The articles include a holographic recording medium (16) having surfaces, having a photoreactive dye dispersed in a transparent polymeric binder, the holographic recorded medium having a holographic image recorded therein from an interference pattern formed by exposed areas of the photoreactive dye and unexposed areas of the photoreactive dye; and a first light-blocking layer (14) or material over a first surface of the holographic recorded medium from which surface the holographic image is viewed, the light blocking layer or material absorbing light in the wavelength range to which the photoreactive dye is sensitive and allowing transmission of light in a different wavelength range for viewing the holographic image.
Abstract:
Silicate glasses for storing holographic data and for producing computer- generated holograms, including photo-darkenable-refractive (PDR) and photo-bleachable- refractive (PBR) glasses. In one embodiment, a PBR glass plate contains a photosensitive glass layer of a silver ion-exchanged holographic recording (SIHR) glass, with a base glass composition that has been ion-exchanged in an aqueous ion-exchange solution containing silver ions. The SIHR glass is uniformly darkened with darkening-light radiation, causing a refractive index change in the photosensitive glass layer upon exposure to bleaching-light radiation without any post-exposure steps. In another embodiment, an optical information recording medium includes a PDR glass plate containing SIHR glass optimized for multiplex recording and for reproducing information, which utilizes holography with darkening-light radiation as recording beams. In still another embodiment, an optical information recording medium includes a PBR glass plate containing SIHR glass optimized for multiplex recording and for reproducing information, which utilizes holography with bleaching-light radiation as recording beams.
Abstract:
The invention relates to a holographic data memory (1) comprising a memory layer (2), which contains a dye that can be modified by exposure, preferably a bleachable or destructible dye. The memory layer (2) is configured for storing holographic information using the local absorption properties in the memory layer (2). A reflection layer (6) is preferably located behind the memory layer (2).
Abstract:
A holographic image display system comprises a screen, a first and a second light source, a scanning mechanism, and a controller. The screen includes a photochromic material arranged thereon. The photochromic material has light absorption characteristics which change depending on illumination with a wavelength of an ultraviolet light beam. The first light source directs a visible light beam with a sufficiently large diameter onto the screen, whereas the second light source directs an ultraviolet light beam onto the screen through the scanning mechanism. The controller controls emissions and scanning of the ultraviolet light beam based on a holographic signal so that the ultraviolet light beam can be scanned across the screen.