EP1036129A1 - Fluoreszenzzusammensetzung zur herstellung von optischen speicherplatten - Google Patents

Fluoreszenzzusammensetzung zur herstellung von optischen speicherplatten

Info

Publication number
EP1036129A1
EP1036129A1 EP98957623A EP98957623A EP1036129A1 EP 1036129 A1 EP1036129 A1 EP 1036129A1 EP 98957623 A EP98957623 A EP 98957623A EP 98957623 A EP98957623 A EP 98957623A EP 1036129 A1 EP1036129 A1 EP 1036129A1
Authority
EP
European Patent Office
Prior art keywords
fluorescent composition
fluorescent
dyes
pits
composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98957623A
Other languages
English (en)
French (fr)
Other versions
EP1036129A4 (de
Inventor
Mark Alperovich
Boris Glushko
Vladimir Krupkin
Eugene Levich
Irene Sul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OMD Devices LLC
Original Assignee
OMD Devices LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by OMD Devices LLC filed Critical OMD Devices LLC
Publication of EP1036129A1 publication Critical patent/EP1036129A1/de
Publication of EP1036129A4 publication Critical patent/EP1036129A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/245—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing a polymeric component
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
    • G11B7/2472—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes cyanine
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/248—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes porphines; azaporphines, e.g. phthalocyanines
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B2007/24624—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes fluorescent dyes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/256—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers improving adhesion between layers

Definitions

  • This invention relates generally to optical materials for, and to a method of, forming optical memory discs of the CD-ROM type for use with fluorescent reading, including disks for three-dimensional (3D) optical memory systems.
  • information is written in the form of local changes to the active medium optical thickness or the reflection coefficient, while reading is performed using laser emission and is based on the laser beam phase or amplitude changes in information record centers.
  • CD-ROM's are the least expensive and most sophisticated of the optical information carriers. However, both the storage volume and the signal-to-noise ratio of currently used
  • CD-ROM's are inadequate for the new generations of computers and video systems now under development.
  • a promising approach to the increase of optical information carrier capacity consists of - increasing the number of information bits per active layer by shortening the pits and increasing their amount, and
  • the pit size is halved and the number of active layers is increased to 4, two on each side of the substrate. This has enabled the disk capacity to be increased up to 20 GB.
  • the fluorescent light is excited and registered with a detector.
  • optical disks proposed in the first of the above references are so constructed
  • form A transforms to form B.
  • Form B absorbs two reading emission photons and emits the fluorescent light which is absorbed by a detector.
  • Materials of this type are intended for repeatedly rewritten memory, because heating or irradiation results in erasing
  • dyes belonging to these classes exhibit satisfactory fluorescence capacity in polymer matrices provided that true solutions have been formed, i.e. dyes are present in the polymer in a molecularly dispersed state.
  • dyes are usually applied to a grooved substrate by spin coating or another method, e.g. vacuum evaporation, in the form of polycrystalline or amorphous opaque thin films having a thickness of about 10 nm. For this reason, and due to the fact that the laser wavelength being used for reading by the reflection coefficient variation method may not coincide with the dye absorption maximum, the dye concentration of the
  • a fluorescent composition meeting a number of specific requirements is used. The most important of these requirements are as follows:
  • the absorption bandwidth of the fluorescent compound should coincide with the emission wavelength of a laser used for reading.
  • the material should have the maximum possible quantum yield of fluorescence
  • the fluorescent composition should not scatter the excitation laser emission and fluorescent light passing through it.
  • the fluorescent dye should be readily compatible with a matrix, forming a true solution of the needed concentration in the matrix, and should not migrate from it.
  • the fluorescent composition should penetrate the pits easily and not color space
  • the refraction index of the fluorescent composition must be close to that of a pit-
  • Still another object of the present invention is to develop a fluorescent composition exhibiting physical and physicochemical properties needed for use in CD-ROM type optical disks, including those intended for a 3D optical memory with fluorescence reading, where data carriers represent pits filled with fluorescent composition.
  • This fluorescent composition consisting of fluorescent dye, film-forming polymer, organic solvent, plastifier and (if necessary) surfactant and light stabilizer provides forming active layers of CD-ROM's with fluorescence reading, free from the drawbacks of prior art optical disks with active layers based on polymer films containing organic dyes.
  • composition including:
  • a fluorescent dye whose absorption band coincides with the wavelength of the laser emission used for reading, this dye having a high quantum yield of fluorescence, forming a true solution with a polymer matrix and not migrating from the matrix;
  • the composition may be completed with surfactants that reduce the surface tension of the composition and thus improve substrate surface wetting and penetration
  • the fluorescent composition After being applied to the substrate and dried, the fluorescent composition has a refractive index close to that of substrate.
  • Fig. 1 shows a cross-sectional view of a portion of an optical disk according to a preferred embodiment of the present invention during an intermediate stage in its formation
  • Fig. 2 shows a cross-sectional view of a portion of the completed optical disk.
  • the CD-ROM multilayer optical disk of the invention is shown in Fig. 1 wherein a
  • substrate 1 having pits 3 is filled with a fluorescent composition 5 having the properties described herein.
  • the multilayered structure can be formed by either glueing at least one other layer of substrate 9 to the substrate 1 by the adhesive layer 7.
  • the adhesive is preferably a UV or photo cured adhesive that is cured with light ray 11.
  • layers of substrate 9 can be cast or coated onto substrate 1 as long as the casting or coating process
  • a multi layered optical disk is shown in Fig. 2 the disk 13 as shown has ten layers.
  • the fluorescent composition used for the manufacture of CD-ROM type optical disks, including those intended for the 3D optical memory with fluorescence reading, where pits filled with this fluorescent composition play the role of data carriers, is produced as follows:
  • a transparent solution is obtained with the following concentration values: film-forming polymer 0.2 - 5.0 wt. %, fluorescent dye 0.001 - 0.1 mole/kg, plastisizer 1.0 - 50 wt. % w.r.t. the polymer, surfactant 0.01 - 2.0 wt. % w.r.t. the polymer, and light-stabilizer 0.1 - 2.0 wt. % w.r.t. the polymer.
  • the fluorescent composition solution is applied by spin coating, roller
  • the coating is applied so that the pits are filled with the composition, while the substrate surface among the pits remains uncolored and does not fluoresce.
  • the remaining fluorescent composition is removed from the substrate surface by rinsing with
  • Xanthene dyes of the eosine group including fluorescine, eosine, erythrosine.
  • R stands for H, Cl, Br, or I
  • R stands for H, Na, Alk
  • R 2 stands for H, Cl.
  • Xanthene dyes of the rhodamine group including rhodamine B, 3B, C, G, 6G, 101, of the general structure II
  • R stands for H, CH 3 , C 2 H 5 , CH 2 COOH, C 2 H 4 OH;
  • R stands for H, Na, CH 3 C 2 H 5 , Ar; and
  • X is an anion selected from Cl “ , Br “ , I “ , F “ , HCO 2 “ , CH 5 CO 2 “ ,C10 4 "
  • R stands for H, CH 3 , C 2 H 5 ;
  • R stands for H, C 6 H 5 ;
  • R 2 stands for H, Alkyl;
  • R 3 stands for H, CH 3 ;
  • X is an anion selected from F, Cl, Br, I, HCOO, CH 3 CHOHCOO, ClO 4 , etc..
  • R stands for H, CH 3 , and benzo-group
  • R stands for H, CH 3 , C 2 H 5
  • X is an anion
  • R stands for phenyl, naphthyl
  • R stands for H, alkyl, phenyl
  • R 2 stands for H, benzo-
  • R 3 stands for H, SO 3 H
  • X is an anion
  • M stands for 2H, metal, metal oxide, metal halide.
  • R stands for Alk, Ar, C 6 F 5 , C 6 H n ; M stands for 2H, Mg, A1C1, Fe +3 etc..
  • film-forming polymers exhibiting high transparency, easily penetrating pits and easily removable from the substrate surface are used. They include the following high-molecular compounds:
  • R stands for H, CH, . C 2 H 5 , C 3 H 7 , C 4 H 9 .
  • This group includes polyvinylbutyral containing 55 to 75 mol. % of butyral group and having a glass transition temperature of 55°C; polyvinylformal with an acetalization degree of 75 to 85 mol. %; and polyvinylethylal.
  • These polymers may be used together with phenol-formaldehyde resins.
  • This group includes polymetylmetacrylate, polybutylmetacrylate, and
  • metylmetacrylate- or butylmetacrylate-metacrylic acid copolymers are metylmetacrylate- or butylmetacrylate-metacrylic acid copolymers.
  • Cellulose ethers and esters of the general structure [C 6 H 7 O 2 (OR) 3 ] n (XIV) and [C 6 H 7 O 2 (OCOR) 3 ] n (XV), respectively, including ethyl cellulose with ⁇ 230 - - 260 (where ⁇ is the number of substituted hydroxyl groups per 100 glycoside residues of the cellulose macromolecule), cellulose acetobutyrate, and cellulose nitrate (with a nitrogen content of 9 -
  • phenol-formaldehyde resins (resols and novolacs), melamine- formaldehyde resins, urea- formaldehyde resins, and polyvinylacetate may be used as film- forming polymers for fluorescent compositions.
  • Solvents being used for fluorescent compositions wet the substrate surface well, help
  • composition penetration into the pits but do not interact with the substrate material and produce no pit deformation.
  • polycarbonate disks only dioxane and aliphatic alcohols, methanol, ethanol, propanol, isopropanol, isobutanol, pentanol and their mixtures may be used as solvents.
  • Film-forming polymers proposed in the present invention exhibit various ranges of a highly elastic state and, therefore, provide different plasticity of coatings.
  • An inadequate plasticity of the polymer hinders the penetration of the fluorescent composition in small pits of size 0.1 - 1.0 ⁇ m.
  • plastifiers are used. As plastifiers allow the decrease of the flow point and glass transition temperature, as well as the elasticity modulus of
  • fluorescent composition proposed are phtalic esters (including dibutyl phtalate and dioctyl phtalate), sebacic esters (including dibutyl sebacate and di-(2-ethyl-hexyl) sebacate), and phosphate esters (including tributyl phosphate and tricresyl phosphate).
  • phtalic esters including dibutyl phtalate and dioctyl phtalate
  • sebacic esters including dibutyl sebacate and di-(2-ethyl-hexyl) sebacate
  • phosphate esters including tributyl phosphate and tricresyl phosphate
  • non-ionogenic compounds like Tritons X and
  • FC-430 and FC-431 Fluorosurfactants produced by the 3M Company can be used.
  • HALS Hindered Amine Light Stabilizers
  • Tinuvins 292, 144, 622, and 770 are used as light-stabilizers.
  • Multilayer optical disks are manufactured using adhesives which provide a good shrinkage-free adhesion of the surfaces being connected, produce no adverse effect on the properties of fluorescing pits and signal-to-noise ratio, transparent for laser excitation and fluorescence light. These requirements are met by UV-light cured optical adhesives, preferably P-92, UV-71, UV-69, UV-74, J-91, VTC-2, SK-9. from Summers Laboratories,
  • Tinuvin 292 0.5 wt. % w.r.t. PVB
  • composition solution is filtered, allowed to stand at 40°C for aeration and applied
  • the fluorescent composition layer is treated with ethyl alcohol for 20 seconds while remaining on
  • the fluorescent composition has an absorption maximum at 645 nm and a fluorescence maximum at 680 nm
  • Example 2 A composition similar to that of Example 1 , except that nile blue (perchlorate) is used as a fluorescing dye. A 6.3-g/l solution in ethyl alcohol is taken in proportion giving a
  • the fluorescent composition has an absorption maximum at 630 nm and a fluorescence maximum at 665 nm.
  • Example 2 A composition similar to that of Example 1 , except that cyanine dye HITC (iodide) is used as a fluorescing dye.
  • a 5.1 -g/1 solution in ethyl alcohol is taken in proportion giving a concentration of 0.8 wt. % w.r.t. PVB.
  • the fluorescent composition has an absorption maximum at 640 nm and a fluorescence maximum at 680 nm.
  • Example 2 A composition similar to that of Example 1, except that cyanine dye HITC (perchlorate) is used as a fluorescing dye. A 5.3-g/l solution in ethyl alcohol is taken in proportion giving a
  • the fluorescent composition has an absorption maximum at 755 nm and a fluorescence maximum at 800 nm and is suitable for fluorescence reading by diode laser with an emission wavelength of 780 nm.
  • methacrylate copolymer resin 2550 (Elvacite acrylic resins, DuPont) with a concentration of 7.5 g/1 is used as a film-forming polymer, and dioctyl
  • phtalate with a concentration of 40 wt. % w.r.t. copolymer 2550 is used as a plastifier.
  • Triton X-45 and Tinuvin 292 are not used. Using oxazine 1
  • oxazine 1 as a fluorescent dye
  • the adhesive is cured with UV light 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
EP98957623A 1997-11-07 1998-11-06 Fluoreszenzzusammensetzung zur herstellung von optischen speicherplatten Withdrawn EP1036129A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US6438897P 1997-11-07 1997-11-07
US64388 1997-11-07
PCT/US1998/023625 WO1999024527A1 (en) 1997-11-07 1998-11-06 Fluorescent composition for the manufacture of cd-rom type optical memory disks

Publications (2)

Publication Number Publication Date
EP1036129A1 true EP1036129A1 (de) 2000-09-20
EP1036129A4 EP1036129A4 (de) 2000-12-27

Family

ID=22055623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98957623A Withdrawn EP1036129A4 (de) 1997-11-07 1998-11-06 Fluoreszenzzusammensetzung zur herstellung von optischen speicherplatten

Country Status (4)

Country Link
EP (1) EP1036129A4 (de)
JP (1) JP2001522745A (de)
AU (1) AU1384099A (de)
WO (1) WO1999024527A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9275671B2 (en) 2011-06-09 2016-03-01 Case Western Reserve University Optical information storage medium

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1155409A1 (de) * 1999-02-12 2001-11-21 Trid Store IP, L.L.C. Verfahren zur erhöhung des fluoreszenzsignals von optischen platten mit fluoreszenzlesen
US7101655B1 (en) 1999-02-12 2006-09-05 D Data Inc. Method for increasing fluorescent signal of optical disks with fluorescent reading and resultant discs
IL129011A0 (en) * 1999-03-16 2000-02-17 Omd Devices L L C Multi-layered optical information carriers with fluorescent reading and methods of their production
WO2001003126A2 (en) 1999-07-01 2001-01-11 The Regents Of The University Of California High density non-volatile memory device
US6381169B1 (en) 1999-07-01 2002-04-30 The Regents Of The University Of California High density non-volatile memory device
IL135309A0 (en) * 2000-03-28 2001-05-20 Ortal Apert Three-dimensional optical memory
US6944115B2 (en) 2000-09-29 2005-09-13 General Electric Company Colored data storage media
WO2002077633A1 (en) 2001-03-23 2002-10-03 The Regents Of The University Of California Open circuit potential amperometry and voltammetry
US6475589B1 (en) 2001-12-17 2002-11-05 General Electric Company Colored optical discs and methods for making the same
US6728129B2 (en) 2002-02-19 2004-04-27 The Regents Of The University Of California Multistate triple-decker dyads in three distinct architectures for information storage applications
CN1754213A (zh) * 2003-02-27 2006-03-29 皇家飞利浦电子股份有限公司 具有电致变色材料的多叠层荧光信息载体
WO2005008640A2 (en) * 2003-07-22 2005-01-27 Koninklijke Philips Electronics N.V. Optical record carrier with ase active material, reading device and method for reading such optical record carrier
US7125644B2 (en) * 2003-08-11 2006-10-24 Hewlett-Packard Development Company, L.P. Systems and methods for storing data on an optical disk
KR20060089222A (ko) * 2003-09-30 2006-08-08 코닌클리케 필립스 일렉트로닉스 엔.브이. 하이 콘트라스트 광학 정보매체
US7198834B2 (en) 2005-03-22 2007-04-03 Hewlett-Packard Development Company, L.P. Imaging media including interference layer for generating human-readable marking on optical media
US20080102526A1 (en) * 2006-10-30 2008-05-01 Sysmex Corporation Reagent, reagent kit and analyzing method
WO2011147857A1 (en) 2010-05-25 2011-12-01 Sicpa Holding Sa Polymer-bonded perylene dyes and compositions containing same
CN102286008B (zh) * 2010-09-10 2013-09-25 郑州轻工业学院 氧杂蒽-9-羧酸镉配合物及其制备方法
AR086509A1 (es) 2011-05-25 2013-12-18 Sicpa Holding Sa Tintes de quaterrileno y/o terrileno unidos a polimeros y composiciones que los contienen
US11211091B2 (en) 2011-06-09 2021-12-28 Case Western Reserve University Optical information storage medium
CA2889690C (en) * 2011-10-27 2018-01-02 Chromatic Technologies, Inc. Photochromic inks
JP6093988B2 (ja) 2011-11-10 2017-03-15 シクパ ホルディング ソシエテ アノニムＳｉｃｐａ Ｈｏｌｄｉｎｇ Ｓａ 窒素含有置換基を有するポリマー結合多環式芳香族炭化水素
CA2853252A1 (en) 2011-11-23 2013-05-30 Sicpa Holding Sa Polycyclic aromatic compounds containing an s atom or s(=0)2 group and their use as dyes
KR102065717B1 (ko) 2016-12-26 2020-01-13 주식회사 엘지화학 편광자 보호 필름, 이를 포함하는 편광판, 상기 편광판을 포함하는 액정 디스플레이 장치, 및 편광자 보호 필름용 코팅 조성물

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152878A (en) * 1980-04-28 1981-11-26 Pilot Ink Co Ltd Fluorescent ink for marking pen
JPS6389384A (ja) * 1986-10-03 1988-04-20 Oike Ind Co Ltd 蛍光性感熱転写媒体
JPS6487393A (en) * 1987-09-30 1989-03-31 Daicel Chem Optical information recording medium
JP2904434B2 (ja) * 1988-08-12 1999-06-14 パイオニア株式会社 光学式情報記録媒体及びその再生装置
JPH039882A (ja) * 1989-06-06 1991-01-17 Sanyo Chem Ind Ltd 光情報記録媒体
DE4123211C1 (de) * 1991-07-12 1993-02-11 Ems-Togo Ag, Romanshorn, Ch
JPH0550757A (ja) * 1991-08-27 1993-03-02 Ricoh Co Ltd 光記録方法
JP3032873B2 (ja) * 1991-10-04 2000-04-17 株式会社サクラクレパス スキンマーク用紫外線発色性インキ組成物
NO301144B1 (no) * 1995-05-23 1997-09-15 Opticom As Optisk datalagring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9275671B2 (en) 2011-06-09 2016-03-01 Case Western Reserve University Optical information storage medium

Also Published As

Publication number Publication date
JP2001522745A (ja) 2001-11-20
AU1384099A (en) 1999-05-31
WO1999024527A1 (en) 1999-05-20
EP1036129A4 (de) 2000-12-27

Similar Documents

Publication Publication Date Title
EP1036129A1 (de) Fluoreszenzzusammensetzung zur herstellung von optischen speicherplatten
US6835431B1 (en) Fluorescent composition for the manufacture of CD-ROM type optical memory disks
JPH0613238B2 (ja) 光学的情報記録媒体
JP2000108513A (ja) 光記録媒体
JP2000057627A (ja) 光反射膜及びそれを用いた光記録媒体
JP2000033775A (ja) 光情報記録媒体
CN1180224A (zh) 光记录介质
JPH052771A (ja) 光記録媒体
JPH06199045A (ja) 光記録媒体
JP2003036562A (ja) 光学記録媒体
JP3673963B2 (ja) 光情報記録媒体
JPH0899467A (ja) 光記録媒体
JP3997296B2 (ja) 光記録媒体の製造方法、品質管理方法、膜厚測定方法
JP4456316B2 (ja) 光情報記録媒体
WO2001029837A1 (en) Medium for fluorescent read-only multilayer optical information carrier and its manufacturing method
JPS6357287A (ja) 光記録媒体
JPH07262604A (ja) 光記録媒体
JP3704230B2 (ja) 光記録媒体
JPS6357290A (ja) 光記録媒体
US6984434B2 (en) Recordable digital video disc
JP2006236582A (ja) 光学記録媒体
JP3398495B2 (ja) 光記録媒体
JP3375432B2 (ja) 光記録媒体
WO2000048177A1 (en) Method of increasing fluorescent signal of optical discs with fluorescent reading
JPH031982A (ja) 光記録媒体

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000512

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

A4 Supplementary search report drawn up and despatched

Effective date: 20001115

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020601