GB2326843A - Optical disc security feature - Google Patents
Optical disc security feature Download PDFInfo
- Publication number
- GB2326843A GB2326843A GB9713978A GB9713978A GB2326843A GB 2326843 A GB2326843 A GB 2326843A GB 9713978 A GB9713978 A GB 9713978A GB 9713978 A GB9713978 A GB 9713978A GB 2326843 A GB2326843 A GB 2326843A
- Authority
- GB
- United Kingdom
- Prior art keywords
- security feature
- disc
- optical disc
- tooling
- application
- 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- Withdrawn
Links
- 230000003287 optical effect Effects 0.000 title claims description 22
- 238000013461 design Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000011888 foil Substances 0.000 description 11
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000976 ink Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
- G11B23/283—Security features, e.g. digital codes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
- G03H1/0011—Adaptation of holography to specific applications for security or authentication
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/10—Laminate comprising a hologram layer arranged to be transferred onto a carrier body
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Manufacturing Optical Record Carriers (AREA)
Description
THE APPLICATION OF A SECURITY FEATURE
TO AN OPTICAL DISC.
This invention is a method to apply a security feature to an optical disc.
Optical Disc is a generic name which can encompass a whole variety of formats, to name a few :- Compact Disc (or CD), CD ROM, Laser disc, Digital Versatile Disc (or DVD). These discs comprise a medium which contains information which can be accessed and read by the use of light, usually a laser of a specific wavelength. The disc will contain information in the form of "lands" and "pits" as an integral part of the manufacture of that disc.
The usual and well recognised means of decorating, labelling or defining a disc is by conventional methods of applying ink. The ink process does not allow any security features to be incorporated. Conventional methods of manufacture with this type of decoration is widespread. The technology used to manufacture these disc types is readily available and therefore duplication of a disc is easily achieved. It is therefore imperative to protect a disc from unauthorised duplication, hence a security feature.
Holograms by their nature have proven to be a very good security feature, they are being used effectively to restrict unauthorised products. Holograms in the form of a foil, a transfer, a label, etc. are unique in their construction and cannot be copied. They can therefore be used to identify a legitimate product.
The optical disc industry requires a mark to be recognised as a standard means of identifying a bonafide product.
According to the present invention there is provided a means of applying a security feature to the surface area of an optical disc, in any shape or form, without affecting information stored on the disc or its specifications.
The security feature can take the form of a label, transfer or stamping foil and relies on an adhesive layer for attachment to the substrate. A security feature incorporating a hologram has usually been manufactured to provide a unique design which is virtually impossible to copy. A stamping foil has been found to be most effective for the purpose of a security feature, because it is impossible to remove or wear away without leaving any trace of its existence. A stamping foil is made up of a carrier, usually polyester, the design created i.e. hologram, is attached to the carrier, a dry adhesive layer then forms the completed foil. It is secured to the optical disc using heat and pressure which activates it's dry adhesive layer. An optical discs' surface area comprises different materials, commonly polycarbonate, protective lacquer, UV curing ink or conventional solvent based inks, therefore the adhesive layer of the foil has to be modified to adhere to these different substrates. Manufacturing may require other substrates to be used. Applying the security feature to the disc as mentioned requires heat and pressure in the form of an application device i.e. a flat plate or roller. The device is heated and impresses against the foil onto the disc at a temperature that activates the adhesive thereby attaching the design on the carrier to the disc via it's now cured adhesive layer. As the device retracts away from both components (foil and disc) the design releases from the foil carrier to leave a permanent security feature on the optical disc. Solid metal tooling can be used in areas to apply the foil where there is no optically read information. Where there is optically read information, a "soft" approach is required by the application device, therefore requiring it to be modified to a composition of a polymer compound supported by a rigid backing. A thermally conductive rubber compound was used to achieve successful results in attaching a security feature to any part of the surface of an optical disc. The device as described attaches the foil onto the disc without adversely affecting the optically read information on the disc or the physical specification of the disc. The device be it metal or polymer may require adapting in a production environment in the shape of a flat plate or roller, it may also have an artistic design incorporated into it's face or contact surface.
Claims (3)
1. A security feature applied to an optical disc, the means of application being tooling that provides heat and or pressure to secure the feature to a surface of the disc.
2. A security feature applied to an optical disc as in Claim 1, wherein the method of application of the security feature to the disc, does not affect the information contained on the disc or the disc specification.
3. A security feature applied to an optical disc, wherein the technique of application of the security feature to the disc, requires tooling as claimed in any preceding Claim, wherein the security feature is attached in a permanent way to withstand normal wear, tear and handling of an optical disc.
3. A security feature applied to an optical disc as in Claim 1 or Claim 2, wherein the security feature is applied to the information area of the disc. Thus, the tooling requires to be structured in a way to provide a soft approach in attaching the security feature to the surface of the disc.
4. A security feature applied to an optical disc as claimed in any preceding Claim, whereby the tooling can be of an artistic shape or design.
5. A security feature applied to an optical disc as claimed in any preceding Claim, wherein the Security feature takes the form of a hologram.
6. A security feature applied to an optical disc as claimed in any preceding Claim, wherein the security feature is attached in a permanent way to withstand normal wear, tear and handling of an optical disc.
Amendments to the claims have been fiXed as follows 1. A security feature applied to an optical disc, wherein the technique of application of the security feature to the disc, requires tooling that can take the form of a solid structure, the contact area of which is coated with a compound. This special tooling provides heat and/or pressure to secure the feature to any part of the surface of the optical disc in a way that it does not affect any of the information contained on the disc and/or the disc specification.
2. A security feature applied to an optical disc, wherein the technique of application of the security feature to the disc, requires tooling as claimed in Claim 1, whereby the tooling can be of an artistic shape or design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9713978A GB2326843A (en) | 1997-07-03 | 1997-07-03 | Optical disc security feature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9713978A GB2326843A (en) | 1997-07-03 | 1997-07-03 | Optical disc security feature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9713978D0 GB9713978D0 (en) | 1997-09-10 |
| GB2326843A true GB2326843A (en) | 1999-01-06 |
Family
ID=10815266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9713978A Withdrawn GB2326843A (en) | 1997-07-03 | 1997-07-03 | Optical disc security feature |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2326843A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001057863A1 (en) * | 2000-02-04 | 2001-08-09 | Hsm Holographic Systems München Gmbh | Optical storage medium |
| WO2004051653A1 (en) * | 2002-12-02 | 2004-06-17 | Oberwager Sain Raul | Method for the authentication and tamper protection of the contents of an optical device used to store digital documents and/or digital objects |
| US8953235B2 (en) | 2006-10-30 | 2015-02-10 | Thomson Licensing | Method for producing a security mark on an optical data carrier |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4773718A (en) * | 1986-07-29 | 1988-09-27 | American Bank Note Holographics, Inc. | Holograms embossed into metal surfaces |
| GB2221550A (en) * | 1988-06-15 | 1990-02-07 | Chubb Electronics Ltd | "Holographic data carriers" |
| WO1993000224A1 (en) * | 1991-06-21 | 1993-01-07 | Light Impressions Europe Limited | Holograms for security markings |
| US5316464A (en) * | 1992-12-16 | 1994-05-31 | Lexell Jason R | Compact disc labeling system |
| GB2286158A (en) * | 1994-02-01 | 1995-08-09 | Nigel Andrew Pollicott | Security marking device |
| EP0712012A1 (en) * | 1994-11-09 | 1996-05-15 | International Business Machines Corporation | Authentication label and authenticating pattern incorporating diffracting structure and method of fabricating them |
-
1997
- 1997-07-03 GB GB9713978A patent/GB2326843A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4773718A (en) * | 1986-07-29 | 1988-09-27 | American Bank Note Holographics, Inc. | Holograms embossed into metal surfaces |
| GB2221550A (en) * | 1988-06-15 | 1990-02-07 | Chubb Electronics Ltd | "Holographic data carriers" |
| WO1993000224A1 (en) * | 1991-06-21 | 1993-01-07 | Light Impressions Europe Limited | Holograms for security markings |
| US5316464A (en) * | 1992-12-16 | 1994-05-31 | Lexell Jason R | Compact disc labeling system |
| GB2286158A (en) * | 1994-02-01 | 1995-08-09 | Nigel Andrew Pollicott | Security marking device |
| EP0712012A1 (en) * | 1994-11-09 | 1996-05-15 | International Business Machines Corporation | Authentication label and authenticating pattern incorporating diffracting structure and method of fabricating them |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001057863A1 (en) * | 2000-02-04 | 2001-08-09 | Hsm Holographic Systems München Gmbh | Optical storage medium |
| WO2004051653A1 (en) * | 2002-12-02 | 2004-06-17 | Oberwager Sain Raul | Method for the authentication and tamper protection of the contents of an optical device used to store digital documents and/or digital objects |
| US8953235B2 (en) | 2006-10-30 | 2015-02-10 | Thomson Licensing | Method for producing a security mark on an optical data carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9713978D0 (en) | 1997-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0608358B1 (en) | Optical data storage disc | |
| KR910003611A (en) | Optical disc, its manufacturing method and reading method | |
| ATE91977T1 (en) | THERMAL RIBBON AND PROCESS FOR PRODUCTION THEREOF. | |
| JP2004358925A (en) | Surface decorating transfer sheet, surface decorating method of article and decorated article | |
| JP2011000760A (en) | Hologram transfer foil and hologram transfer body using the same | |
| GB2326843A (en) | Optical disc security feature | |
| JP4900150B2 (en) | Brittle label and manufacturing method thereof | |
| MX2012012146A (en) | Optically writable holographic media. | |
| KR100841132B1 (en) | Optical disk and method of producing the same | |
| JP2000251329A (en) | Optical information recording medium | |
| WO1995027925A1 (en) | Protected relief patterns | |
| JP3726351B2 (en) | Image recording method, image recording medium used therefor, image recording medium transfer sheet, and image recording adhesive sticker | |
| JPH0548215Y2 (en) | ||
| JP2798619B2 (en) | Volume hologram transfer sheet | |
| JPH0739060Y2 (en) | Optical disc | |
| JP3412403B2 (en) | Transfer material and transfer formed body using the same | |
| JPH0749625Y2 (en) | Transfer type optical recording medium | |
| JPS63282940A (en) | Information recording medium | |
| JPH07186577A (en) | Information recording medium and transfer sheet | |
| JP5994598B2 (en) | Diffraction structure transfer foil and anti-counterfeit medium using the same | |
| JP2733942B2 (en) | optical disk | |
| JPH02160556A (en) | Transfer of pictorial pattern to compact disk and transfer sheet | |
| JP3455593B2 (en) | Method of forming a plurality of layers including a radiation cured layer | |
| JP2002079798A (en) | Transfer ribbon for forming protective film, method for forming protective film using this and individual certifying medium | |
| JPH025245A (en) | Optical recording medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |