CN1512495A - Anti-wear and scratch optical disc - Google Patents
Anti-wear and scratch optical disc Download PDFInfo
- Publication number
- CN1512495A CN1512495A CNA021596794A CN02159679A CN1512495A CN 1512495 A CN1512495 A CN 1512495A CN A021596794 A CNA021596794 A CN A021596794A CN 02159679 A CN02159679 A CN 02159679A CN 1512495 A CN1512495 A CN 1512495A
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- China
- Prior art keywords
- protruded object
- optical disc
- data
- described protruded
- circular
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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 information recording plane of optical disc, there is spiral lugs set around the center of the optical disc and between spiral tracks for recording information in the data area. The lugs may be further set in the inner ring area B, circular high processes area C, circular stacked area D and/or outer ring area F of the optical disc, 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 the CD of using up method record and reappearing the anti-wear of record and scratch especially.
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, in use, owing to use improperly, the data field is still often scratched or is damaged by impression of the hand by hard thing, causes CD to use, give CD everyone bring tremendous loss.
Summary of the invention
The purpose of this invention is to provide a kind of anti-wear and CD of scratching, scratched or damaged by hard thing by impression of the hand to avoid the optical disc data district.
Anti-wear and the CD that scratches of the present invention is characterized in that: be provided with protruded object on the data of optical disk face, described protruded object is that the hollow center hole A with CD is the center of circle, and spiral is arranged between the helical trajectory road of data recordng information.
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.
The helical trajectory road that one or one or more recorded information can be arranged between described protruded object and the protruded object; How much not limiting of the helical trajectory road of the recorded information between two protruded objects can be determined according to the effect of manufacturer and use.
Described protruded object further 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 semicircle, platform shape, 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 can with CD one die cast.
The present invention is owing to be provided with protruded object in the data field of data surface, and protruded object is higher than the data spiral track road of recorded information, so, prevented that in use data spiral track road is scratched 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.In the optical disc data district, its rectangle protruded object is that the hollow center hole A with CD is the center of circle, and continuous helical is arranged between the helical trajectory road of data recordng information, and this protruded object is to be made by pmma material, highly is 100 μ m.
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.In the optical disc data district, its semicircle protruded object is that the hollow center hole A with CD is the center of circle, is disposed between the helical trajectory road of data recordng information, and the helical trajectory road of 5 recorded informations is arranged between protruded object and the protruded object.Protruded object further is arranged on the circular outer zone F of CD simultaneously.This protruded object is to be made by material in polyester resin, highly is 2000 μ m.
Claims (8)
1. anti-wear and scratch CD is characterized in that: be provided with protruded object on the data of optical disk face, described protruded object is that the hollow center hole A with CD is the center of circle, and spiral is arranged between the helical trajectory road of data recordng information.
2. CD as claimed in claim 1 is characterized in that: described protruded object further 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 to be 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 semicircle, platform shape, 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 semicircle, platform shape, 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 |
|---|---|---|---|
| CNA021596794A CN1512495A (en) | 2002-12-30 | 2002-12-30 | Anti-wear and scratch optical disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021596794A CN1512495A (en) | 2002-12-30 | 2002-12-30 | Anti-wear and scratch optical disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1512495A true CN1512495A (en) | 2004-07-14 |
Family
ID=34237580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021596794A Pending CN1512495A (en) | 2002-12-30 | 2002-12-30 | Anti-wear and scratch optical disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1512495A (en) |
-
2002
- 2002-12-30 CN CNA021596794A patent/CN1512495A/en active Pending
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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 |