CN2598090Y - Wear-proof CD - Google Patents
Wear-proof CD Download PDFInfo
- Publication number
- CN2598090Y CN2598090Y CNU022951393U CN02295139U CN2598090Y CN 2598090 Y CN2598090 Y CN 2598090Y CN U022951393 U CNU022951393 U CN U022951393U CN 02295139 U CN02295139 U CN 02295139U CN 2598090 Y CN2598090 Y CN 2598090Y
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- CN
- China
- Prior art keywords
- data
- protruded object
- utility
- area
- described protruded
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the field of record carrier, in particular an anti abrasion and scratching CD which uses optics method to record and make the record repeated display. The utility model is provided with a protruding object on the disc surface outside the data area on the CD data surface. The protruding object is positioned on one area of more than one of the CD round inner ring area B, the round high pressure area C and the round outer ring area F. The protruding object is positioned continuously or alternatively by using the hollow center hole A of the CD as the center of the circle. The utility model is provided with a protruding object outside the data area on the data surface, and the protruding object is higher than the data spiral track recording information; thereby, the utility model prevents the wearing of the data spiral track to destroy the CD when in use.
Description
Technical field
The utility model belongs to the record carrier field, is 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 utility model provides a kind of antiwear CD, is damaged to avoid the optical disc data district.
Antiwear CD of the present utility model 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 utility model 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 utility model embodiment 1.
Fig. 3. the CD schematic top plan view of the utility model embodiment 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
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.
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 |
|---|---|---|---|
| CNU022951393U CN2598090Y (en) | 2002-12-30 | 2002-12-30 | Wear-proof CD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022951393U CN2598090Y (en) | 2002-12-30 | 2002-12-30 | Wear-proof CD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2598090Y true CN2598090Y (en) | 2004-01-07 |
Family
ID=34152099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU022951393U Expired - Fee Related CN2598090Y (en) | 2002-12-30 | 2002-12-30 | Wear-proof CD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2598090Y (en) |
-
2002
- 2002-12-30 CN CNU022951393U patent/CN2598090Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |