摘要:
A photocuring transfer sheet having a photocuring transfer layer made of a photocuring composition which contains a reactive polymer having a photopolymerizable functional group and is deformable when the sheet is pressed. The sheet is characterized in that when the sheet undergoes a creep test using a dynamic viscoelasticity measurement instrument, the relationship between the strain [?] (%) and the time [t] (second) is linear under the condition of normal temperature, 50-Pa stress, and 120-second time and satisfies the following formula. log ? = a + b·log t (where a is a real number and b ranges from 0.10 to 0.53.) A method for manufacturing an optical information recording medium and an optical information recording medium are also disclosed.
摘要翻译:一种光固化转印片,其具有由光固化组合物制成的光固化转印层,该光固化组合物含有具有可光聚合官能团的反应性聚合物,并且当片被压制时可变形。 该片的特征在于,当使用动态粘弹性测量仪进行蠕变试验时,在常温条件下,应变[η](%)和时间[t](秒)之间的关系是线性的,50 -Pa应力,120秒时间,满足下式。 日志? = a + b·log t(其中a是实数,b在0.10至0.53之间)。还公开了一种用于制造光学信息记录介质和光学信息记录介质的方法。
摘要:
An optical recording medium which comprises a 0.3 to 2.0 mm-thick substrate made of thermoplastic resin and provided with an emboss pit or guide groove, a reflection layer provided on the substrate, and a 3 to 200 mum-thick transparent protection layer provided thereon, and which reproduces recorded information based on a change in light intensity of a reflected light produced by applying a light beam from the transparent protection layer side, characterized in that the substrate consists of polycarbonate resin having a specific chemical structure and thermoplastic resin having specific physical properties. An optical recording medium for surface recording/reproducing having a simple structure, especially, a high-recording-density optical recording medium is provided.
摘要:
A optical storage medium is provided, comprising a main substrate, an information surface being associated with the main substrate, and at least one compensating layer. The compensating layer may change a phase and/or amplitude of a propagating electromagnetic wavefront according to a first optical transfer function so that the optical storage medium may be read or recorded by a detector/emitter being pre-set to read or record information at an information surface through a medium changing the phase and/or amplitude of a propagating wavefront according to a predetermined optical transfer function being different from the first optical transfer function. The compensating layer may optically reduce a spot size of a light beam incident on the information surface, and/or compensate for aberrations caused by a first distance being different from a predetermined distance. The substrate may be non-transparent and/or thinner than standard substrates. Methods of making such media are also provided.
摘要:
An optical recording and reading system for use with an optical data storage medium (5) is described. The system comprises the medium (5) having a recording stack (9), formed on a substrate (8). The recording stack (9) is suitable for recording by means of a focused radiation beam (1) with a wavelength lambda in air. The recording stack (9) has a first optical surface (6) most remote from the substrate (8). An optical head (3), with an objective (2) having a numerical aperture NA and from which objective (2) the focused radiation beam emanates (1) during recording, is (2) arranged on the recording stack (9) side of said optical data storage medium (5). The objective has a second optical surface (7) closest to the recording stack (9), and is adapted for recording/reading at a free working distance dF of smaller than 50 µm from the first optical surface (6). At least one of the first optical surface (6) and the second optical surface (7) is provided with a transparent hydrophobic layer (10) that has a refractive index n and has a thickness smaller than 0.5nun. In this way reliable recording and reading is achieved, specifically contamination build-up on the second optical surface (7) is prevented or counteracted.
摘要:
An active energy ray curable composition for coating an optical disk which comprises an urethane (meth)acrylate compound, an ethylenically unsaturated compound except said urethane (meth)acrylate compound and a photopolymerization catalyst; and an optical disk having a coating layer prepared by curing the composition. Also provided is an optical disk which comprises a substrate and, laminated thereon in the following order, a recording layer and a cured coating layer, wherein a recording light and/or a regenerating light enter from the surface of said cured coating layer side, characterized in that said cured coating layer is prepared by curing a curable composition exhibiting a curing shrinkage of 7.5 % or less, has a pencil hardness of 2B or harder, and exhibits a transmittance of a light having a wavelength ranging 380 to 800 nm of 75 % or more.
摘要:
A UV curable coating composition for an ink-receiving layer that is required for ink jet printing and an optical recording medium having the ink-receiving layer formed by the UV curable coating composition are provided. The UV curable coating composition includes a (meth)acrylate monomer, a (meth)acrylate oligomer, N-vinyl-2-pyrrolidone, and inorganic and organic pigments. An ink-receiving layer formed by the UV curable coating composition shows excellent adhesion to substrates, ink absorption and adsorption, drying efficiency, and water resistance in ink jet printing. Therefore, high quality recording media can be formed.
摘要:
The invention relates to a machine readable data carrier comprising a substrate consisting of a copolyester carbonate which contains units on the basis of hydrogenated dimer fatty acids. The inventive data carrier offers the possibility to record data when the data density is higher.
摘要:
Systems and methods are described for inhibiting the readability of an optical media due to changes in a pseudo-reflective material that composes the optical media after the optical media has been exposed to air for a predetermined time. An optical media includes a data encoded component. At least a fraction of the data encoded component transforms form a substantially optically reflective state to a substantially optically non-reflective state as at-least-in-part a function of time from an initializing event. The systems and methods provide advantages because of low cost, limited content lifetime, avoidance of rental returns and minimum changes to existing manufacturing processes.
摘要:
The present invention relates to phthalimide based azo metal complex dyes and their use in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength up to 450 nm. The invention further relates to a write once read many (WORM) type optical data recording medium capable of recording and reproducing information with radiation of blue laser, which employs a phthalimide based azo metal complex dye in the optical layer.