| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Stamper and method for injection molding information bearing member | US611049 | 1984-05-16 | US4500392A | 1985-02-19 | Gary G. Slaten |
| An improved stamper and method involved in the replication of optically-readable information bearing members by means of an injection molding process utilizing a stamper having a conformal layer of chromium electrolytically deposited over the encoded surface of an existing optically-readable information bearing nickel stamper. Nickel stampers produce replicas having structural and optical defects affecting playability of the replica. The present invention provides improvement in the reduction or elimination of "plowing" and "orange peel" defects through cleaner release at the interface of the master stamper and the stamped article. The invention involves an improved stamper surface comprised of a thin layer of chromium metal deposited over an existing nickel stamper. Such a surface insures a cleaner release at the interface of the master stamper and stamped article. | ||||||
| 182 | Method for manufacturing optical type recording medium | US473244 | 1983-03-08 | US4478768A | 1984-10-23 | Yoshikatsu Takeoka; Nobuaki Yasuda |
| A specific laser-sensitive layer is formed on a substrate so as to manufacture an original disk. The laser-sensitive layer absorbs energy from a laser beam and locally expands and deforms. The laser beam which has a predetermined beam energy to indicate pretrack information for, for example, a self-write/read type optical disk, is used to irradiate the laser-sensitive layer. A spiral projected pattern is locally formed on the laser-sensitive layer, such that a gas is discharged from laser-incident portion which then expands and deforms. A structure so obtained is used as an original disk. | ||||||
| 183 | Process of making information carrying systems | US448618 | 1982-12-10 | US4430363A | 1984-02-07 | Michael P. Daniels; Robert J. Schoonover |
| Polymerizable compositions are applied to substrates by a screen printing method in manufacturing video discs. This method reduces both relaxation times and internal stress marks in the polymerized composition. | ||||||
| 184 | Substrate of member for recording information with light and method of manufacturing the same | US204780 | 1980-11-07 | US4407880A | 1983-10-04 | Motoyasu Terao; Shinkichi Horigome; Kazuo Shigematsu; Yoshinori Miyamura; Seiji Yonezawa |
| A substrate of a recording member comprising a hard base, a first organic substance layer which is formed on the base, and a second organic substance layer which is made of a solvent-soluble organic substance and which is formed on a surface of the first organic substance layer opposite to a surface thereof lying in contact with the base. This substrate can be reused. | ||||||
| 185 | Master for device replication | US300084 | 1981-09-08 | US4382103A | 1983-05-03 | Paul E. McQuaid |
| A layer of an ion exchanged glass is utilized as the master for video disc production. Due to the ion exchange, such glass possesses stored energy in the form of compressive stress. When localized portions of the layer of ion exchanged glass are heated sufficiently, those portions of the glass soften and release the compressive stress energy in the form of localized surface bumps. The presence or absence of surface bumps and/or their height can convey the video information in analog or binary form. Once the ion exchanged master is formed, the master is used in a conventional manner to produce mirror image copies on a suitable, conventional substrate, generally a plastic. The copies are generally formed by a pressing or stamping technique, or by an injection molding technique. The relief surface of the copies can be coated with a conventional light reflective layer to aid in optical read-out of the video information stored by the relief surface. | ||||||
| 186 | Method for preparing stylus lapping discs | US118088 | 1980-02-04 | US4297312A | 1981-10-27 | Charles B. Carroll; Howard G. Scheible |
| An improved method of reproducing a spiral groove pattern in the surface of a plastic disc wherein the intersections of the surface of a metal article generated during the replication process are filled in to form concave junctions. | ||||||
| 187 | Video disc processing | US109206 | 1980-01-04 | US4275100A | 1981-06-23 | Pabitra Datta |
| A conductive video disc replica is cleaned by washing with an aqueous solution comprising an oxidizing agent, a base and a surfactant of a fluorocarbon added in an amount so that the solution has a surface energy of about 35 dynes/cm.sup.2 or less. This solution removes metallic and oxygen-containing impurities from the surface of the disc and leaves a fluorinated surface. | ||||||
| 188 | Method of duplicating plastics information carriers | US95130 | 1979-11-16 | US4275091A | 1981-06-23 | Gerardus J. M. Lippits; Arnoldus J. M. Van Den Broek; Adriaan J. G. Op Het Veld; Rinse Dijkstra; Jelis De Jonge |
| The invention relates to a method of reproducing plastics record carriers, in particular duplicating video records. According to the invention, a metal die is used which is provided with a thin-liquid molding resin of a particular composition which can be polymerized by radiation. A radiation-pervious substrate which is manufactured from synthetic material, for example polymethylmethacrylate, is provided on the molding resin. The molding resin is exposed to light via the substrate after which the cured molding resin together with the substrate connected thereto is removed from the die. The molding resin used in the process comprises low-molecular monomers or oligomers which contain on an average 25-70% by weight of hydrocarbon groups and/or phenyl groups. The molding resin is aprotic and has a functionality as regards unsaturatedness which is between the values 2 and 6. A suitable molding resin contains mono-, tri- or tetra esters of acylic acid. The molding resin preferably has a swelling capacity with respect to the substrate and for that purpose preferably comprises a vinylmonomer. The metal die used in the method preferably is a quite flat die which is obtained by providing the master disk which is a flat glass plate with information track with a nickel layer, gluing hereon a flat stiffening plate and then removing the master disk. The resulting father disk may be used as a die. Alternatively, further metal copies may be made herefrom which are provided in a simpler manner with a flat stiffening plate. The invention also extends to the molding resin, substrate and die used in the method, as well as to the resulting plastics record carriers. | ||||||
| 189 | Linear method of optically recording a video or other signal | US648006 | 1976-01-12 | US4150398A | 1979-04-17 | Chiaki Kojima; Hiroshi Ohki; Yuzuru Yanagisawa |
| In optically producing a reproducible recording of video or other signals, the intensity of at least one laser light beam is modulated by the signals to be recorded while such light beam scans a substantially flat surface on a photo-sensitive recording medium which is photo-reacted to a degree varying substantially linearly in correspondence with the intensity of the light impinging thereon over a predetermined range of light intensities, and the intensity of the light beam and the degree of modulation thereof by the signals are selected to maintain the maximum and minimum intensities of the modulated light beam within such predetermined range so as to form simultaneously on the record medium a tracking path portion and a recorded signal portion which is unified with the latter. The photo-sensitive record medium is desirably constituted by a positive photo-resist so that, upon development thereof, the tracking path portion is obtained in the form of a groove having the recorded signal portion defined by irregularities at the bottom of such groove. The positive photo-resist or other photo-sensitive material may be conveniently applied as a layer on a base plate or disc which is rotated while the light beam and disc are moved relative to each other in a radial direction of the disc so that the groove or other tracking path portion forms a spiral. | ||||||
| 190 | Modulated groove records with a thick metal layer and method for making same | US664068 | 1976-03-05 | US4148067A | 1979-04-03 | Lyn Holt |
| A modulated groove record, such as a video disc, has a coating on a conductive layer bearing the modulated groove formed from the material of the layer. The material may be aluminium and the coating may be a uniform dielectric of aluminium oxide formed by anodizing. The groove may be impressed in the aluminium surface by applying a matrix to an aluminium/plastics laminate forcefully and rapidly so that the aluminium yields while the plastic appears rigid. The aluminum layer thickness is at least twenty times the depth of the groove. | ||||||
| 191 | Method of creating a replicating matrix | US646053 | 1976-01-02 | US4141731A | 1979-02-27 | Manfred H. Jarsen |
| A video disc master of glass, having a metal surface with microscopic apertures therein representing information, is coated with a photosensitive resist. The resist is uniformly exposed through the glass disc. The unexposed resist is removed. The resulting disc having surface irregularities can be used in a first process to produce "stampers" for embossing replicas and, in a second process, to produce a mold for casting replicas. | ||||||
| 192 | Relief pattern impressing apparatus | US810528 | 1977-06-27 | US4125760A | 1978-11-14 | Alex Nyfeler |
| An apparatus for impressing relief patterns of high resolution, particularly phased holograms or phased diffraction gratings, in a thermoplastic information carrier, comprises a heatable impressing matrix in strip form, which carries the relief pattern and which, together with the information carrier, is passed between two calender rollers, the impressing matrix being adapted to be heated by a current flowing through it. | ||||||
| 193 | Method of making a metallized video disc having an insulating layer thereon | US588387 | 1975-06-19 | US4018945A | 1977-04-19 | Robert Michael Mehalso |
| A polymeric film applied to a video disc by glow discharge techniques is treated with a subsequent glow discharge in air to improve wear properties. | ||||||
| 194 | Olefin-SO.sub.2 copolymer film adhesion to a substrate | US599589 | 1975-07-28 | US4007295A | 1977-02-08 | Eugene Samuel Poliniak; Richard Joseph Himics; Henry Wielicki |
| To improve the adherence of an olefin-SO.sub.2 copolymer film employed as an electron beam resist to a metallic substrate, a thin film of gold is first applied to the substrate. The resulting bond is strong enough to withstand exposure to electron beams, development of the resist film and electroplating of the film witout undercutting, lifting or distortion of the film. | ||||||
| 195 | Method and apparatus for recording and/or reproducing a video signal on a photographic record disc | US451298 | 1974-03-14 | US3939302A | 1976-02-17 | Nobutoshi Kihara |
| Composite television signals are recorded in a spiral track or in a series of concentric circular tracks on a record disc. Line sequential signals are optically recorded in the radial direction on a record disc with one horizontal line interval of the composite television signals corresponding to the width of the record track, and with the successive line signals being arranged in the circumferential direction of the track. Pulse-time modulated video and audio signals are recorded as a series of depressions all having the same width and the same depth, and with the varying length between the adjacent depressions corresponding to the information signal. A video signal reproducing head is provided adjacent to the optical record disc for optically reproducing video signals from the tracks on the disc which is, during reproduction of the signals, rotated at an extremely low speed so as to facilitate the reliable tracking of the signal reproducing head in respect to the recorded tracks. | ||||||
| 196 | Video disc with multiturn undulating storage track | US439681 | 1974-02-04 | US3931460A | 1976-01-06 | William H. Watson |
| A video disc has a storage track formed of half wavelength pits alternating with lands. The track has a series of turns, individually of a generally circular path but undulating symmetrically about that path. The undulations of the several turns have such relative phase that the turns are in nested concentric relation and one component of the stored information represents the phase of the undulations.The record is a replication of a master formed under the control of a laser writing beam modulated with the information to be stored. A Bragg cell in the optical path, responding to a cyclic frequency-modulated signal, optically displaces the writing beam about a reference path to develop undulations in the record storage track. | ||||||
| 197 | Record-turntable assembly and method of making | US34913273 | 1973-04-09 | US3815146A | 1974-06-04 | NASH L |
| A record and turntable assembly featuring precise and repeatable angular and linear positioning of the record on the turntable, and positive rotary drive. The turntable is provided with three conically tapered mounting pins projecting from the surface and arranged in a scalene triangular array. The record is formed with matingly tapered mounting holes arranged in a congruent triangular array, so that the record and turntable can be assembled by placing the record on the turntable with the holes received on and engaging the pins. This provides a positive drive between the turntable and record, and assures the desired, repeatable angular and linear positioning of record on the turntable.
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| 198 | Duplicating process for video disc records | US3658954D | 1968-07-24 | US3658954A | 1972-04-25 | BROADBENT KENT D |
| A DUPLICATING PROCESS FOR FORMING DUPLICATE PLASTIC RECORDS FROM A VIDEO RECORDING MASTER DIE IS PROVIDED. THE PROCESS INVOLVES SUBJECTING THE SURFACE OF THE DIE TO AN APPROPRIATE VAPOR, AND IRRADIATING THE VAPOR SO AS TO FORM A FILM ON THE SURFACE OF THE DIE HAVING HOLES OR DEPRESSIONS THEREIN WHICH ARE FORMED BY THE DIE, AND WHICH ARE REPRESENTATIVE OF THE VIDEO RECORDING OF THE DIE. A BACKING IS SUBSEQWUENTLY APPLIED TO THE FILM, THE BACKING BEING COMPOSED, FOR EXAMPLE, OF A TRANSPARENT MATERIAL HAVING THE SAME COEFFICIENT OF REFRACTION AS THE FILM, AND THE RESULTING COMBINATION IS SUBSEQUENTLY REMOVED FROM THE SURFACE OF THE DIE.
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| 199 | Method of making tape replicas | US3535413D | 1968-06-25 | US3535413A | 1970-10-20 | GLENN WILLIAM E JR |
| 200 | 전자 빔 조사 장치, 전자 빔 조사 방법, 원 디스크,스탬퍼, 및 기록 매체 | KR1020010010691 | 2001-03-02 | KR1020010087255A | 2001-09-15 | 아키유이치; 곤도다카오; 다케다미노루; 야마모토마사노브; 마스하라신; 가시와기도시유키 |
| PURPOSE: To provide an electron beam irradiation device capable of avoiding effectively scattering of an electron beam, and avoiding installation of a large- scale vacuum chamber. CONSTITUTION: This device is equipped with a support part 4 for supporting an electron beam irradiation object 3 to which the electron beam 2 is irradiated, and an electron beam irradiation head 6 facing to the electron beam irradiation object at minute intervals and having an electron beam outgoing hole 5 for irradiating the electron beam 2 to the electron beam irradiation object 3. The device has a constitution in which an electron beam passage 20 communicating with the electron beam outgoing hole 5 is installed in the electron beam irradiation head 6, and one or more ring-shaped gas absorbing grooves 61, 62 opened to the opposite face to the electron beam irradiation object are formed on the periphery of the centered electron beam outgoing hole 5, and a vacuum pump is connected to the electron beam passage 20 and the ring-shaped gas absorbing grooves 61, 62 to keep the electron beam passage at high vacuum. | ||||||
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