Data carrier for optical memory devices, method for producing said data carrier and optical recorder with appropriate recording layer

FIELD: optical data carriers.

SUBSTANCE: device has cation dye or mixture of cation dyes with optical characteristics, changed by means of recording beam, an at least one substance with functions of damper and phenol or substituted phenol with one hydroxide group or more, while it additionally contains phenol or substituted phenol in form of phenolate ion, forming a portion of anions for dye cations, as a stabilizer. Data carrier can contain anionic metal-organic thyolene complex as damper, which forms other portion of anions for dye cations.

EFFECT: higher stability, higher durability, lower costs.

5 cl, 1 tbl, 3 ex

 

The invention relates to the field of optical storage devices, on which information is recorded and from which information is read using a laser. The invention relates to media for the recording layer of the storage device, to a method for storage media and optical storage device with a recording layer composed of a carrier of information, and corresponds to the generic concept of the corresponding independent claim.

Optical storage devices that use lasers can be recorded information and which can read information (e.g., CD-R, DVD-R, DVD-RAM, DVD-RW or HD), usually contain a polycarbonate transparent substrate in the form of a disk, with three floors and a spiral groove on one side. These three layers are recording layer, a reflective layer and a protective lacquer layer. The recording layer is located directly on the substrate material with the same side of the substrate, which is applied to the groove and consists of media. This medium contains a dye or mixture of dyes, the optical characteristics of which are changed by using a laser beam (recording beam). A reflective layer is located on top of the recording layer and usually consists of a metal (e.g. silver, AOR the PTA or aluminum). The protective lacquer layer is located over the reflective layer and usually consists of a lacquer-based organic resin, curing which occurs under the action of ultraviolet light.

To maintain a record of the storage device is moved relative to the laser beam (recording beam) along the groove (turn), and information on it is written with a laser, the laser is directed onto the reflecting layer through the substrate and the recording layer. In this wavelength range and the recording energy beam is calculated so that the absorption of laser radiation in the recording layer led to local heating, which causes the formation of holes in the shell between the substrate and the recording layer, and a chemical reaction in the recording layer would cause a local change of the optical characteristics (e.g., discoloration, fading) of the dye in the layer. In the process of writing to an optical storage device, you receive the sequence of changed and unchanged pixels, at this point, modified with a recording beam, contain holes and chemically modified dye or mixture of dyes.

To ensure reading the optical storage device is again moved relative to the laser beam along the groove, while the intensity of this laser beam is less than the intensity of the recording beam and this beam is also directed to a reflective layer over the substrate and the recording layer. Changes in the reflection of the laser beam (stronger or weaker reflection) in modified or unmodified points are estimated as the signals are read.

The process of manufacturing such devices may consist of the following stages:

- the production of a polycarbonate substrate by injection molding;

- the application of the solution onto a rotating substrate, in which the dissolved components of the media; it may be, for example, a colloidal solution in an organic solvent or mixture of solvents, however, this solution is distributed on the substrate by centrifugal force, and the excess solution is removed by centrifugation;

- removing the solvent or mixture of solvents by evaporation;

- applying a reflective layer by sputtering;

application and curing of the protective lacquer.

These steps are usually part of a continuous process, which includes and verification steps. These checks are used to control optical properties of the products at intermediate stages of processing and to reject defective items.

Requirements for storage devices are continually increasing, this refers primarily to the write speed and read, write, and read to the life, and finally to the price. Characteristics of writing and reading, as well as the service life and price sapom the kăđẫa devices depend largely on the characteristics of the recording layer so that the requirements for this layer are many and varied. In particular, this layer should provide the possibility of occurrence of the corresponding chemical reaction for the recording process, however, due to the limited time to write, this reaction requires less energy, and at the same time, it is necessary to provide the highest chemical resistance of the layer that it is important to ensure a long service life. The chemical stability of the recording layer are also important due to the fact that it largely determines the requirements for the inertia and the value of the metal reflecting layer. In addition the fluid media, which is used for manufacturing the recording layer must be precisely predictable rheological characteristics for application of centrifugation so that the resulting layer had just set and the most uniform thickness, and that it can be quickly dried.

Usually in the recording layer of the storage device used dyes with variable recording beam optical properties, for example, cationic form meinich or polymethine dyes (cyanine dyes, phthalocyanine dyes, azo dyes or metallic formazan), which are available upon whom arescom market, for example, in the form of chlorides, bromides, fluorides, perchlorates, tetrafluoroborates or with anions of sulfonic acids or carbonic acid. In order to freely change the optical properties of the dyes with the recording beam, the media in addition to the dye contains the so-called “quencher”.

Dyes that can be used in the recording layer of the storage devices described, for example, in the following publications: EP-0403797, WO-93/22142, WO-98/14612, WO-99/37717, WO-99/05221, WO-98/34988, US-5900348 (methine or polymethine or cyanine dyes), JP-52047824, JP-58069255, JP-07314897 (phthalocyanine dyes), US-5731054, US-5922504 (metallic formazane dyes). It is also proposed to use a mixture of dyes which contain two or three of the above dye.

Are also on the market and dampers, for example, firms Nippon Kayako Co. Ltd. brand IRG 23 (hydrochinone) or IRG 003 (aromatic amine absorbers).

At the present time, it became clear that solutions containing the above-mentioned known dyes and dampers do not have sufficient stability, because the dampers are unstable compounds. For this reason, the solutions for the manufacture of recording layers cannot be produced in large quantities and stored for a long time and, in particular, they cannot be freely reproduced. It is also clear that the information on the storage device with the recording layers, which contain only the above-mentioned dyes and dampers can be written only with a limited speed. In addition, these recording layers are susceptible to corrosion, with the result that they should only be made from silver or gold, which provides sufficient service life of the storage device.

In the publication US-5436113 describes an optical storage device in which to stabilize the recording layer is used phenol.

The aim of the present invention is to provide such a recording medium for recording layers of storage devices, the resistance of which is considerably greater than the resistance of known media, which is true for both the recording layer and the solution used in the manufacture of the recording layer.

This objective is achieved in that the storage media for optical storage device containing a cationic dye or a mixture of cationic dyes with optical characteristics that are changeable with a recording beam, and at least one substance with the functions of a damper and a phenol or substituted phenol with one hydroxy-group or a large number of hydroxy groups include phenol or substituted phenol in the form of phenolate ion, which forms part of anions to cations of the dye, as the stabilizer.

This goal is achieved by the fact that the composition of the stabilizer include the following anions -2,6-di-tert-butyl-phenol, 2,6-di-tert-butyl-4-methyl-phenol, 2-tert-butyl-4-methyl-phenol, 6-tert-butyl-3-methyl-phenol, α-methyl-benzyl-phenol, 2,6-di-tert-butyl-4-methoxy-phenol, alcohol - 4-hydroxy-3,5-di-tert-butyl-benzyl, 6-tert-butyl-2-methyl-phenol, esters propionic acid (3-(4-hydroxy-3,5-di-tert-butyl-phenyl), 2,5-di-tert-butyl-hydrochinon, 2,5-di-tert-amyl-hydrochinon, 2,2’-methylene-bis(6-tert-butyl-4-methyl-phenol), 2,2’-methylene-bis(4,6-dimethyl-phenol), 2,2’-isobutylidene-bis(4,6-dimethyl-phenol), 2,2’-methylidene-bis(4-methyl-6-α-cyclohexyl-phenol), 4,4-methylene-bis(2,6-di-tert-butyl-phenol), 4,4’-butylidene-bis(6-tert-butyl-3-methyl-phenol), 2,2’-THIOBIS(4-methyl-6-α-methyl-benzyl-phenol), 2,2’-THIOBIS(4,6-di-sec-amyl-phenol), 4,4’-THIOBIS(6-tert-butyl-2-methyl-phenol), 4,4’-THIOBIS(6-tert-butyl-3-methyl-phenol), bis(4-hydroxy-3,5-di-tert-butyl-benzyl)sulfate, 1,1,3-Tris(5’-tert-butyl-4’-hydroxy-2’-methyl-phenyl)butane, 2,4,6-Tria(4’-hydroxy-3’,5’-di-tert-butyl-benzyl)mesitylene, 2,4-dihydroxy-benzophenone, 4-alkoxy-2-hydroxy-benzophenone, 2-hydroxy-4-methoxy-benzophenone, or a mixture mentioned phenolate ions.

This goal is achieved by the fact that as a substance acting as a damper, it contains anionic ORGANOMETALLIC terenowy complex, which forms a part of the anions on the I cation dye.

This goal is achieved by the fact that anionic ORGANOMETALLIC complex is di-terenowy complex that resembles the following

where M=Ni, Co, Fe, cu, Sn, Zn, Al, Ti, Cr, V, Pt or Pd;

a R: -H, -Cl, -Br, -J, -F, -NOz, -CSN, -CN, -och3, -OCnH(2n+1)when n=1-20, or-COOR with R=OCnH(2n+1)(known from US 4806664 A, 1989; US 5204220 But, 1993).

This goal is achieved by the fact that it includes a dye and a stabilizer, the molar ratio is in the range from 100:1 to 100:30.

This goal is achieved by the fact that it includes a dye and anionic ORGANOMETALLIC terenowy complex with a molar ratio of components in the range from 100:1 to 100:50.

This goal is achieved by the fact that it is dissolved in an organic solvent or mixture of organic solvents.

This goal is achieved by the fact that use media to enhance the stability of the recording layers of the optical storage device and the optical storage device.

This goal is achieved by the fact that dye, a quencher and a stabilizer dissolved in an organic solvent, the solution is stirred at elevated temperature and in the next stage, to the extent possible, separate the water-soluble salt.

The objective of dostigaet is the that together with the dye and a stabilizer dissolved anionic ORGANOMETALLIC terenowy complex.

This goal is achieved by the fact that for separation of water-soluble salts of the mixed solution is washed with water.

This goal is achieved by the optical storage device with a substrate, a recording layer located over the substrate and is composed of a storage medium in accordance with the above method, with a reflective layer located on top of the recording layer and the protective lacquer layer located over the reflective layer.

This goal is achieved by the fact that in the optical recording device of the reflective layer consists of silver, gold or aluminum.

This goal is achieved by the fact that in the method of manufacturing an optical storage device with a substrate, a recording layer located over the substrate with a reflective layer located on top of the recording layer, and a protective lacquer layer, located over the reflective layer, and the substrate is produced by injection molding, the information carrier is applied to the substrate by centrifugation and then the solvent is removed from storage media caused by centrifugation, and the metal layer is applied to a recording is Loy as a reflective layer by sputtering, and the metal layer is covered with a protective lacquer, and dissolved the storage medium is a storage medium in accordance with the previously described method.

This goal is achieved by the fact that the metal layer comprises gold, silver or aluminium.

The basis of the present invention is the notion of stabilization media by introducing a stabilizer in the form of a phenol with one hydroxy-group or more hydroxy groups with phenol substitution. Phenol is present in the storage media in the form of phenolate ions and replaces part of a normal ions of opposite charge cationic dye (e.g., perchlorate ions). The media can also be stabilized by substitution of another part of the ions of opposite charge cationic dye using ORGANOMETALLIC anions telenovela complex, which may also assume the function of a damper, and it does not require the introduction of media no traditional damper. For this case suitable, in particular, anionic terenowy complexes with a Central metal atom, at least two valences.

The media and the solution containing the cationic dye (or mixture of several cationic dyes) with the usual anions and manufactured by a damper, showing the significance of the considerable higher resistance, if its composition is in the form of a stabilizer is added phenol substitution. This effect increases with the replacement of part of the usual anions phenol, in the form of phenolate ions. A further increase in stability obtained when the substitution of other anions and with the substitution of the anionic quencher, ORGANOMETALLIC tilenum complex.

Sustainability media, increased in accordance with the present invention has the following advantages:

- Storage device that contains the media, have a longer service life as in the case of recording information, in case of its absence.

- Since the media less susceptible to corrosion, for applying a reflective layer instead of silver or gold can be used less noble and, therefore, less expensive metal, such as aluminum.

The solution used for manufacturing the recording layer, can be used over a prolonged period of time and, in particular, it can be used repeatedly without any restrictions, that does not lead to the formation of environmentally hazardous materials.

It was also shown that the storage device with a storage medium according to the present invention in addition to the above advantages have more the more advantages compared with the known storage devices, which are directly a consequence of the increased stability of the media. These additional benefits improve the quality of the recording and reading information, and, in particular, include:

- improvement of the optical characteristics of the recording layer, which is important for writing and reading;

over the sharp edges of the holes;

recording information on a storage device with a higher level of quality at a higher speed (not less than 16x);

- improved rheological characteristics of the dye in solution media, which enables reducing the time of applying the solution onto the substrate while increasing the degree of filling of the grooves and increasing the uniformity of the coating, which provides a reduced thickness and accelerate the drying of the layer, which in turn leads not only to improve the quality of writing and reading, but also to reduce the time of the technological cycle and, consequently, reducing the amount of dye that has reduced the cost of the product;

- the media is highly soluble in all the solvents that are typically used in the manufacture of optical storage devices.

The composition of media for optical storage devices according to the present invention includes:

a cationic dye (m is produced or polymethine dye (cyanine dye), phtalocyanine dye, formazane dye or an azo dye), optical characteristics which change under the action of the recording beam;

- phenol with one hydroxy-group or more hydroxy groups, which is a stabilizing phenol substitution, it is desirable that this phenol was present in the form of phenolate ions and acted the part of a normal, contributing to the corrosion of dye anions;

- quencher or instead of a damper anionic ORGANOMETALLIC terenowy complex, which acts as a damper and replaces another part of the usual anions, causing corrosion of the dye, and therefore contributes to the stability of the media.

The information carrier according to the present invention contains phenolate ions in an amount corresponding to the amount of dye, with phenolate ions form from 1 to 30% (molar concentration) of the anions. The information carrier according to the present invention further comprises anionic ORGANOMETALLIC terenowy complex in an amount corresponding to the amount of dye providing education from 1 to 50% of the anions. As many anions stabilizer can degrade the optical characteristics of the media, the higher the ion content of the stabilizer is undesirable. With increasing content of IO is s ORGANOMETALLIC telenovela complex solubility of the storage medium becomes insufficient.

As stabilizers in the media of the present invention are the following reaction of substituted phenols:

2,6-di-tert-butyl-phenol, 2,6-di-tert-butyl-4-methyl-phenol, 2-tert-butyl-4-methyl-phenol, 6-tert-butyl-3-methyl-phenol, α-methyl-benzyl-phenol, 2,6-di-tert-butyl-4-methoxy-phenol, alcohol - 4-hydroxy-3,5-di-tert-butyl-benzyl, 6-tert-butyl-2-methyl-phenol esters propionic acid (3-(4-hydroxy-3,5-di-tert-butyl-phenyl), 2,5-di-tert-butyl-hydrochinon, 2,5-di-tert-amyl-hydrochinon, 2,2’-methylene-bis(6-tert-butyl-4-methyl-phenol), 2,2’-methylene-bis(4,6-dimethyl-phenol), 2,2’-isobutylidene-bis (4,6-dimethyl-phenol), 2,2’-methylidene-bis(4-methyl-6-α-cyclohexyl-phenol), 4,4-methylene-bis(2,6-di-tert-butyl-phenol), 4,4’-butylidene-bis(6-tert-butyl-3-methyl-phenol), 2,2’-THIOBIS(6-tert-butyl-4-methyl-phenol), 2,2’-THIOBIS(4-methyl-6-α-methyl-benzyl-phenol), 2,2’-THIOBIS (4,6-di-sec-amyl-phenol), 4,4’-THIOBIS(6-tert-butyl-2-methyl-phenol), 4,4’-THIOBIS(6-tert-butyl-3-methyl-phenol), bis(4-hydroxy-3,5-di-tert-butyl-benzyl)sulfate, 1,1,3-Tris(5’-tert-butyl-4’-hydroxy-2’-methyl-phenyl) butane, 2,4,6-Tria(4’-hydroxy-3’,5’-di-tert-butyl-benzyl)mesitylene, 2,4-dihydroxy-benzophenone, 4-alkoxy-2-hydroxy-benzophenone, 2-hydroxy-4-methoxy-benzophenone, or a mixture of two or more of the above phenols corresponding reaction.

Observed changes in optical features is to dyes, caused by ions stabilizer, suggest that form ionic complexes, which not only held together by electrostatic forces, but also by coordinating communication.

Anionic thiolen-metal complex of a damper, which is suitable for media of the present invention, is as follows di-thiolen-metal complex:

where M=Ni, Co, Fe, cu, Sn, Zn, Al, Ti, Cr, V, Pt or Pd;

a R: -H, -Cl, -Br, -J, -F, -NOz, -CSN, -CN, -och3, -OCnH(2n+1)when n=1-20, or-COOR with R=OCnH(2n+1).

Substitution of ions, which is preferred in the manufacture of recording media of the present invention, is achieved by use of phenol in the form of a phenolate, for example, in the form of potassium phenolate, with dye and phenolate dissolved in an organic solvent (such as dimethyl-formamide or acetone) and the resulting solution is mixed for a long time (for example, from 2 to 12 hours) at elevated temperatures (for example, from 70 to 120°). Followed by a stage of separation of ions substitution, forming water-soluble salts, for example, when washing with water. Thus obtained substance is dried and, if necessary, translated into the solution for making the recording layer by dissolving, for example, in a mixture diacetone sleep is the one and methoxyethanol, diacetone alcohol and butanol, diacetone alcohol and isopropanol or other suitable organic solvent or solvent mixture.

Example 1.

Dye OM, cyanine dye with five mlinovima groups, which is manufactured by Fuji Photo Film Co. Ltd., the damper 23 IRG (hydroxynonenal), which is manufactured by Nippon Kayako Co. Ltd., and 2,2’-THIOBIS(6-tert-butyl-4-methyl-phenol)as a stabilizer are mixed in the following proportions: dye/quencher = 10:1; dye/stabilizer = 10:3. This mixture is dissolved in diacetone alcohol and isopropanol (10:1) with a mass concentration of 3% by stirring at room temperature for 24 hours. Then the solution is filtered under nitrogen pressure, through the filter type RC58 (Schleicher&Schuell). The dye solution thus obtained is used with continuous stirring for manufacturing recording layers.

To obtain a recording layer solution media thickness from 180 to 220 nm is applied by centrifugation on the side of the polycarbonate substrate having grooves. Then the substrate with the coating dried at 80°C. thereafter, using well-known methods of deposition onto the dried recording layer is covered with a layer of silver of a thickness of from 60 to 90 nm. Then him by centrifugation sprayed protective lacquer, kotoryservisnaya under the action of ultraviolet light.

The spent solution media is prepared for reuse, it is added the required amount of absorber and solution. The reusability of the solution is limited due to the fact that increasing the content of decomposed quencher.

Example 2.

To the dye solution ON (mass content of dye 10%) (as in example 1) in dimethylformamide is added to 20% (molar concentration relative to the dye) potassium - 2,2’-THIOBIS(6-tert-butyl-4-methyl-phenol). The solution is stirred for 2 hours at 70°C. Then the solution is poured into cold water, while the organic components are precipitated and water-soluble salts into solution. Organic components are filtered out, recrystallized from a solution of dimethylformamide and ethanol (4:1) and then dried.

The yield is 95%.

For the manufacture of the recording layers of the ionic composition of the colorant stabilizer is mixed with the quencher IRG23 (dye/quencher = 10:1) and then dissolved and used as described in example 1. Thus, the thickness of the media, done by centrifugation, can be reduced to 150-180 nm.

Example 3.

To the dye solution ON (mass content of dye 10%) (as in example 1) in dimethylformamide is added to 20% (molar the th concentration in relation to the dye) potassium salts - 2,2’-THIOBIS(6-tert-butyl-4-methyl-phenol), and 10% (molar concentration relative to the dye) salt tetrabutyl ammonium telenovela complex according to formula 1, where M Is Co, a-R=-och3. The mixture is then processed in the manner described in example 2.

The ionic composition of the dye, stabilizer and telenovela complex, thus obtained, is then dissolved without the addition of a damper for the manufacture of recording layers and is used as described in example 1. Thus, the thickness of the media, done by centrifugation, can be reduced to 130-150 nm. To reuse the spent solution media there is no need to control the content of the quencher and the addition of quencher.

The following table shows the test results of optical storage devices made in accordance with examples 1-3 in comparison with mass storage devices with a recording layer containing only the dye OM 57 and the damper 23 IRG (mass ratio 10:1) (according to the prior art).

 Changes in the concentration before/after test, %
BLERShake wellsShake pads
Storage of mouth is eusto prior art -302426
The memory device according to example 1121012
The memory device according to example 2523
The memory device according to example 3101

Use the information carrier according to example 2 other reaction, and for example 3 - other milenovic complexes leads to achieving the same technical result.

1. Storage media for optical storage device containing a cationic dye or a mixture of cationic dyes with optical characteristics that are changeable with a recording beam, and at least one substance with the functions of a damper and a phenol or substituted phenol with one hydroxy-group or a large number of hydroxyl groups, characterized in that it contains a phenol or substituted phenol in the form of phenolate ion, forming part of anions to cations of the dye, as a stabilizer.

2. The information carrier according to claim 1, characterized in that the composition of the stabilizer include the following anions: 2,6-di-tert-butyl-phenol, 2,6-di-tert-butyl-4-methyl-phenol, 2-tert-butyl-4-methyl-phenol, 6-tert-butyl-3-methyl-phenol, α-methyl-benzylphenol, 2,6-di-tert-butyl-4-methoxy-phenol, JV is mouth - 4-hydroxy-3,5-di-tert-butyl-benzyl, 6-tert-butyl-2-methyl-phenol, ether propionic acid (3-(4-hydroxy-3,5-di-tert-butyl-phenyl), 2,5-di-tert-butyl-hydroquinone, 2,5-di-tert-amyl-hydroquinone, 2,2’-methylene-bis(6-tert-butyl-4-methyl-phenol), 2,2’-methylene-bis(4,6-dimethyl-phenol), 2,2’-isobutylidene-bis (4,6-dimethyl-phenol), 2,2’-methylidene-bis (4-methyl-6-α-cyclohexyl-phenol), 4,4-methylene-bis(2,6-di-tert-butyl-phenol), 4,4’-butylidene-bis(6-tert-butyl-3-methyl-phenol), 2,2’-THIOBIS(6-tert-butyl-4-methyl-phenol), 2,2’-THIOBIS(4-methyl-6-α-methyl-benzyl-phenol), 2,2’-THIOBIS(4,6-di-sec-amyl-phenol), 4,4’-THIOBIS (6-tert-butyl-2-methyl-phenol), 4,4’-THIOBIS(6-tert-butyl-3-methyl-phenol), bis(4-hydroxy-3,5-di-tert-butyl-benzyl) sulfate, 1,1,3-Tris(5’-tert-butyl-4’-hydroxy-2’-methyl-phenyl) butane, 2,4,6-Tria(4’ -hydroxy-3’,5’-di-tert-butyl-benzyl) mesitylene, 2,4-dihydroxy-benzophenone, 4-alkoxy-2-hydroxy-benzophenone, 2-hydroxy-4-methoxy-benzophenone, or a mixture mentioned phenolate ions.

3. The information carrier according to claim 1 or 2, characterized in that the substance acting as a damper, it contains anionic ORGANOMETALLIC terenowy complex, which forms part of anions to cations dye.

4. The information carrier according to claim 3, characterized in that the anionic ORGANOMETALLIC complex is dithiolene complex that resembles the following

where M=Ni, Co, Fe, cu, Sn, Zn, Al, Ti, Cr, V, Pt or Pd;

R: -H, -Cl, -Br, -J, -F, -NOz, -CSN, -CN, -och3, -OCnH(2n+1)for n=1 to 20, or -- COOR with R=OCnH(2n+1).

5. The information carrier according to one of claims 1 to 4, characterized in that it includes a dye and a stabilizer, a molar ratio which is in the range from 100:1 to 100:30.

6. The information carrier according to one of p-6, characterized in that it includes a dye and anionic ORGANOMETALLIC terenowy complex with a molar ratio of the components in the range from 100:1 to 100:50.

7. The information carrier according to one of claims 1 to 6, characterized in that it is dissolved in an organic solvent or mixture of organic solvents.

8. The substance for increasing the stability of the recording layers of the optical storage device and the optical storage devices constituting a storage media for optical storage devices according to claims 1-7.

9. The method of receiving media according to one of claims 1 to 7, characterized in that the dye, a quencher and a stabilizer dissolved in an organic solvent, the solution is stirred at elevated temperature and in the next step, pour the solution into the water before separating the water-soluble salts precipitated from the organic component.

10. The method according to claim 9, characterized in that the natural with dye and a stabilizer dissolved anionic ORGANOMETALLIC terenowy complex.

11. The method according to claim 9 or 10, characterized in that for the separation of water-soluble salts stir the solution washed with water.

12. Optical storage device with a substrate, a recording layer located over the substrate and is composed of a data carrier according to one of claims 1 to 7, with a reflective layer located on top of the recording layer, and a protective lacquer layer, located over the reflective layer.

13. Optical storage device according to item 12, wherein the reflective layer consists of silver, gold or aluminum.

14. A method of manufacturing an optical storage device containing a substrate, a recording layer located over a substrate, a reflective layer above the recording layer, and a protective lacquer layer above the reflective layer, the substrate manufactured using injection molding, the information carrier is applied to the substrate by centrifugation, and then the solvent is removed from storage media, caused by the centrifugation, a metal layer is applied to the recording layer as a reflective layer by sputtering and covered with a protective varnish, characterized in that dissolved the storage medium is a storage medium according to one of claims 1 to 7.

15. The method according to 14, wherein the metal interconnection is th perform consisting of gold, silver or aluminum.



 

Same patents:

FIELD: optical data carriers.

SUBSTANCE: optical data carrier has at least two layers, each of which is a substrate with recording film, on which optically discernible code relief is formed with information elements readable via laser radiation, which contain elements with optical limiting property. Method for manufacture of optical multilayer data carrier includes manufacture of at least two layers, each of which has optically discernible code relief with laser radiation readable information elements, which are formed of substance, having property of optical limiting. Method for multilayer optical recording of data, in which information is recorded by forming and moving pulses of laser radiation flow along surface of recording film in formed tracks, filled with substance, having optical limiting property, or components for synthesis of substance, having property of optical limiting. Method for reading from optical multilayer data carrier, including forming of laser radiation flow, its focusing at read layer with optically discernible code relief with information elements, containing substance, having property of optical limiting, modulation of light signal reflected from code relief by frequency and amplitude.

EFFECT: higher efficiency.

4 cl, 3 dwg

The invention relates to methods for producing information carriers such as CD-ROM

The invention relates to instrumentation, optical storage devices, and in particular to methods of manufacturing information carriers such as CD-ROM

The invention relates to the production of matrices for disk media
The invention relates to the making, in particular to optical storage devices, and can be used for the manufacture of transparent basics of optical disks with a constant signalosome, disposable and reversible recording

The invention relates to the accumulation of data, and in particular to techniques for the manufacture of compact disks and digital recordings on them

The invention relates to fototapete and reproduction of optical information on the layer of amorphous semiconductor material that changes optical density and reflectivity under the direct action of actinic light in the image creation process, and can be used in the devices of the recording-playback of optical information, technical photography, when the thin film gauges dose of light radiation

FIELD: data carriers.

SUBSTANCE: in optical data carrier, including track, including multiple recesses, formed on basis of first data being subject to recording, and platforms, formed between adjacent recesses, these recesses are recorded with deformation on basis of second data. First and second data are synthesized and played for realization of sound playback with broad frequency range. Also, first data are recorded with possible playback by means of common disc player. Playback of first data is controlled by second data for protection of recorded data.

EFFECT: higher efficiency.

6 cl, 44 dwg

FIELD: optical data carriers.

SUBSTANCE: optical data carrier has at least two layers, each of which is a substrate with recording film, on which optically discernible code relief is formed with information elements readable via laser radiation, which contain elements with optical limiting property. Method for manufacture of optical multilayer data carrier includes manufacture of at least two layers, each of which has optically discernible code relief with laser radiation readable information elements, which are formed of substance, having property of optical limiting. Method for multilayer optical recording of data, in which information is recorded by forming and moving pulses of laser radiation flow along surface of recording film in formed tracks, filled with substance, having optical limiting property, or components for synthesis of substance, having property of optical limiting. Method for reading from optical multilayer data carrier, including forming of laser radiation flow, its focusing at read layer with optically discernible code relief with information elements, containing substance, having property of optical limiting, modulation of light signal reflected from code relief by frequency and amplitude.

EFFECT: higher efficiency.

4 cl, 3 dwg

The invention relates to a memory means containing at least one set of data in memory

The invention relates to the field of optical recording

The invention relates to the accumulation of information

The invention relates to the accumulation of information
The invention relates to devices used in electronic devices as storage devices

The invention relates to a method of producing perspire formula H(CFR1CF2)nCH2OH (I) wherein R1is F or CF3when n=1, and R1is F, when n=2, including the interaction of methanol with tetrafluoroethylene or HEXAFLUOROPROPYLENE in the presence of a source of free radicals

The invention relates to optical storage media with high recording density information

The invention relates to optical disks, which have multiple information layers

FIELD: color-forming compositions and recording material.

SUBSTANCE: claimed composition includes developer containing urea-urethane compound and colorless or light colored leuco dye. Recording material based on this composition also is proposed.

EFFECT: color-forming compositions with improved image conservation ability and increased image intensity.

21 cl, 14 tbl, 153 ex

Up!