CN1512496A - Anti-wear optical disc - Google Patents
Anti-wear optical disc Download PDFInfo
- Publication number
- CN1512496A CN1512496A CNA021596808A CN02159680A CN1512496A CN 1512496 A CN1512496 A CN 1512496A CN A021596808 A CNA021596808 A CN A021596808A CN 02159680 A CN02159680 A CN 02159680A CN 1512496 A CN1512496 A CN 1512496A
- Authority
- CN
- China
- Prior art keywords
- protruded object
- optical disc
- data
- circular
- area
- 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.)
- Pending
Links
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
The present invention belongs to the field of record carrier, and is especially wear and scratch preventing optical disc for optical recording and playing back. On the data surface of optical disc, there is lugs set around the center of the optical disc and in the area outside the data area including transparent inner ring area B, circular high processes area C, circular stacked area D and/or outer ring area F, and the lugs may be continuous or intermittent. The lugs higher than the spiral data tracks can protect optical disc effectively against scratch and damage.
Description
Technical field
The invention belongs to the record carrier field, be meant that especially the abrasionproof of using up method record and reappearing record undermines the CD of scuffing.
Background technology
CD is to handle with the laser beam that focuses on to store or the medium of regenerating information, is a kind of information recording medium of novelty, is the ideal medium that is used for various information such as stored sound, image, photo, data, literal now.
The kind of CD is a lot, comprises music CD CD, read-only disc CD-ROM, laser video CD VCD, Mini Disk MD and digital versatile CD DVD or the like.Traditional compact disk structure mainly is made up of for three layers dish base, recording layer and protective layer, and wherein, the dish base is by material such as organic glass or vibrin; Recording layer is the composite material film of tellurium alloy, covers the surface of dish base; Protective layer is made up of materials such as plastics or organic glass, in order to canned data on the protection recording layer.
As shown in Figure 1, the external structure of conventional optical disc is the same substantially, and diameter is 80mm or 120mm, and thickness is 1.2mm, is divided into printing surface and data surface.On the optical disc data face, be respectively that diameter is the hollow center hole A of 15mm from the inside to surface; Width is the transparent circular Nei Huan district B of 2mm; Width is the transparent circular higher-pressure region C of 7mm; Width is the transparent circular stack layer district D of 1mm; Width is the circular data district E of 40.5mm; Outermost layer is that width is the transparent circular outer zone F of 1.5mm, wherein, the helical trajectory road of stable headway is arranged on the surface of video disc recording layer, on the track imprinting a large amount of information, the part that is carved with information is called the data field, the spacing between the helix is 1.6 μ m.The printing surface of CD is the same substantially with the data surface structure, only stack layer is become only glue groove, and data surface has become printing surface.
Though the recording layer matcoveredn in data of optical disk district protection; but in use; owing to do not note when placing CD; the one side that often CD is carved with information is placed on the desk; so in the course of time; the optical disc data district will be damaged, and cause CD to use, give CD everyone bring tremendous loss.
Summary of the invention
The purpose of this invention is to provide a kind of antiwear CD, be damaged to avoid the optical disc data district.
Antiwear CD of the present invention is characterized in that: be provided with protruded object on the card beyond the data field of data of optical disk face.
Described protruded object is that the hollow center hole A with CD is that the center of circle is provided with continuously or at interval.
Described protruded object is arranged in any one or the more than one district among the transparent circular Nei Huan district B of CD, circular higher-pressure region C, circular stack layer district D, the circular outer zone F.
Described protruded object is solid or hollow; The shape of described protruded object is geometric configuratioies such as triangle, semicircle, platform shape, annular, ellipse, cylindricality, rectangle or angle vertebra shape.
The height of described protruded object only need be higher than the data spiral track road of recorded information, is preferable with 100 μ m～2000 μ m generally.Described protruded object can be the same with the material of CD, as materials such as organic glass or vibrin.Described protruded object number is not particularly limited, and it can or be bonded in the data field blank space in addition that has the data of optical disk face now with CD one die cast.
The present invention since in the data field of data surface being outside equipped with protruded object, and protruded object is higher than the data spiral track road of recorded information, so, prevented that in use data spiral track road is worn damaged compact disk.
Description of drawings
Fig. 1. the schematic top plan view of conventional optical disc structure.
Fig. 2. the CD schematic top plan view of the embodiment of the invention 1.
Fig. 3. the CD schematic top plan view of the embodiment of the invention 2.
Reference numeral
1. protruded object 2. helical trajectory roads
A. C. higher-pressure region, the circular Nei Huan district of center pit B.
D. E. data field, stack layer district F. outer zone
Embodiment
Embodiment 1.
As shown in Figure 2.The dish base is the machine glass material; Recording layer is the composite material film of tellurium alloy, covers the surface of dish base; Protective layer is a pmma material, and according to traditional method for making CD, one die cast one has the CD of protruded object on the data of optical disk face.Described 3 angle vertebra shape protruded objects are arranged among the circular outer zone F of CD, and this protruded object is to be made by pmma material, highly is 100 μ m.
Embodiment 2.
As shown in Figure 3, the dish base is a material in polyester resin; Recording layer is the composite material film of tellurium alloy, covers the surface of dish base; Protective layer is a plastic material, and according to traditional method for making CD, one die cast one has the CD of protruded object on the data of optical disk face.Described cylindrical convex thing is separately positioned among the circular Nei Huan district B and circular outer zone F of CD.This protruded object is to be made by material in polyester resin, highly is 2000 μ m.
Claims (8)
1. an antiwear CD is characterized in that: be provided with protruded object on the card beyond the data field of data of optical disk face.
2. CD as claimed in claim 1 is characterized in that: described protruded object is arranged in any one or the more than one district among the circular Nei Huan district B of CD, circular higher-pressure region C, circular stack layer district D, the circular outer zone F.
3. CD as claimed in claim 1 or 2 is characterized in that: described protruded object is that the hollow center hole A with CD is that the center of circle is provided with continuously or at interval.
4. CD as claimed in claim 1 or 2 is characterized in that: described protruded object is solid or hollow; The shape of described protruded object is triangle, semicircle, platform shape, annular, ellipse, cylindricality, rectangle or angle vertebra shape.
5. CD as claimed in claim 3 is characterized in that: described protruded object is solid or hollow; The shape of described protruded object is triangle, semicircle, platform shape, annular, ellipse, cylindricality, rectangle or angle vertebra shape.
6. as claim 1,2 or 5 described CDs, it is characterized in that: the height of described protruded object is 100 μ m～2000 μ m.
7. CD as claimed in claim 3 is characterized in that: the height of described protruded object is 100 μ m～2000 μ m.
8. CD as claimed in claim 4 is characterized in that: the height of described protruded object is 100 μ m～2000 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021596808A CN1512496A (en) | 2002-12-30 | 2002-12-30 | Anti-wear optical disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021596808A CN1512496A (en) | 2002-12-30 | 2002-12-30 | Anti-wear optical disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1512496A true CN1512496A (en) | 2004-07-14 |
Family
ID=34237581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021596808A Pending CN1512496A (en) | 2002-12-30 | 2002-12-30 | Anti-wear optical disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1512496A (en) |
-
2002
- 2002-12-30 CN CNA021596808A patent/CN1512496A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1256726C (en) | Optical disc and protective method for same | |
| US9105284B2 (en) | Magnetic media having graphene wear protection layers | |
| AU2002245466A1 (en) | Optical disc and method of protecting same | |
| US7417941B2 (en) | Optical disc and method of protecting same | |
| US8663771B2 (en) | Optical media having graphene wear protection layers | |
| CN2598090Y (en) | Wear-proof CD | |
| JP2002352475A (en) | Information recording medium | |
| CN2598089Y (en) | CD capable of preventing wear and scratching | |
| CN1512496A (en) | Anti-wear optical disc | |
| CN1512494A (en) | Anti-wear and scratch optical disc | |
| CN1512495A (en) | Anti-wear and scratch optical disc | |
| CN202549282U (en) | Anti-wear and anti-scratching optical disc | |
| US20040170116A1 (en) | Optical disc incorporating a relief pattern | |
| CN100359579C (en) | Optical disc and apparatus for portable applications | |
| AU2007321826A1 (en) | Eco disc | |
| US20090120260A1 (en) | Manual dvd splitter | |
| US20100220582A1 (en) | Disc-shaped information-carrying medium | |
| CN1215472C (en) | Small-hole compact disc for data memory and access | |
| AU2007321821A1 (en) | Eco disc | |
| CN113874939A (en) | Optical recording medium | |
| CN1722264A (en) | Optical disc | |
| KR20030052707A (en) | disk structure optical recording medium type and production process of the same | |
| CN1363928A (en) | Optical disk assembly | |
| KR20030056866A (en) | optical disk of high density and production method of the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |