CN1967683B - CD restrained read-write quiver and its manufacture method - Google Patents
CD restrained read-write quiver and its manufacture method Download PDFInfo
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- CN1967683B CN1967683B CN200510125081A CN200510125081A CN1967683B CN 1967683 B CN1967683 B CN 1967683B CN 200510125081 A CN200510125081 A CN 200510125081A CN 200510125081 A CN200510125081 A CN 200510125081A CN 1967683 B CN1967683 B CN 1967683B
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- layer
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Abstract
This invention relates to the CD and its manufacturing method which can suppress the vibration when reading/writing. The CD, which can suppress the vibration when reading/writing, includes a ring substrate, a coating layer and a damping layer. The ring substrate has an inside supporting part and an outside supporting part, and the ring substrate has a recording surface corresponding the record part. The coating layer is formed on the recording surface to record information. The damping layer is affixed to the coating layer side of the ring substrate, to extend the vibration reaction time of the CD. The invention also discloses a manufacturing method for manufacturing the said CD, and the steps include: creating the ring substrate; form the coating layer on the surface of the recording surface; and affix the damping layer on the coating layer side of the ring substrate. The invention can reduce the vibration state of the CD, and improve the CD compatibility for the recording part's lacking rigidity. Meanwhile, the CD in the invention easy to produces and can effectively reduce production costs.
Description
[technical field]
The invention relates to a kind of CD and manufacture method thereof, especially about a kind of CD and manufacture method thereof that suppresses to read and write time vibration.
[background technology]
CD can store the data of multiple form, be that light of new generation stores in the market storing media the most easily, applicable scope suitable extensively, application such as books collection, data backup, electronic publishing, image data store such as being used as, individual's medical treatment record management.
Please refer to Figure 1A, it is the vertical view of known CD 1.Known CD 1 in the form of a ring, is divided into the inboard support sector 11 and the recording portion 12 in the outside shown in Figure 1A.The detailed structure of known CD 1 shown in Figure 1B, comprises an annular base plate 13, a coating layer 14 and a compensating plate 15.And coating layer 14 comprises recording layer 141, reflection horizon 142 and protective seam 143, and each layer stacks gradually to the annular base plate 13 to form recording portion 12.15 of compensating plates and annular base plate 13 are fitted and are finished product CD 1 to coat coating layer 14.
In order to reduce operation, to reduce production costs, the known CD 2 of another kind of form, as shown in Figure 2.CD 2 is that with the main difference of CD 1 CD 2 lacks compensating plate, and because CD 2 lacks compensating plate, therefore increases the thickness of the support sector 11 of annular base plate 21, and the drive unit that makes CD is chucking optical disk 2 effectively.For example, the thickness of the support sector 11 of CD 2 is about 1.2mm, and the thickness of recording portion is about 0.6mm.
The known CD 3 of another form is to improve from CD 2, and its difference is that support sector's 11 outer rims outstanding in the annular base plate 33 have several breach 31, as shown in Figure 3A.Another difference is in the annular base plate 33 outstanding support sector's 11 outer rims inclined-plane 32 that stretches out, shown in Fig. 3 B.Above-mentioned two features make annular base plate 33 make easily and have a preferable mechanical property.
Unavoidable ground when CD rotates in drive unit, can rotate, read air in vibration of (writing) head mechanism and the drive unit and factor such as turbulent flow occur and produce vibration because of the main shaft of drive unit.When resonance takes place for CD and above-mentioned every vibration factor, or when the high power fast reading was write, the rotating speed of drive unit main shaft significantly promoted, and the vibration that is produced will be more violent.CD 1 effectively increases the rigidity of CD 1 because of having compensating plate 15, can prevent that CD is out of shape because of vibration when read-write.Relatively, because compensating plate 15 has rigidity, if when the plane character of compensating plate 15 is not good, can causes the warpage of CD on the contrary and influence the read-write character of CD, even become unacceptable product.CD 2,3 is 0.6mm because the thickness of recording portion 12 is only had an appointment, therefore easily because of the incompatible occasion of writing in the high power fast reading of vibration.
In sum, the vibration problem when how to improve CD and reading and writing under various times of speed is with the compatibility of the CD that promotes the rigidity deficiency and to be easy to produce be the target of needing effort at present badly.
[summary of the invention]
At the problems referred to above, the object of the present invention is to provide a kind of CD and manufacture method thereof that suppresses to read and write time vibration, it can change and reduce the vibrational state of CD, to solve the doubly fast vibration problem that is produced down of all read-writes, effectively promotes the compatibility of the CD of recording portion rigidity deficiency.Simultaneously, compared to the CD that comprises compensating plate, CD of the present invention is easy to produce and can effectively reduces production costs.
For reaching above-mentioned purpose, the CD of vibration comprised an annular base plate, a coating layer and a damping layer when inhibition of the present invention was read and write.This annular base plate has an inboard support sector and an outside recording portion, and this annular base plate has a recording surface corresponding to this recording portion.This coating layer is formed on this recording surface, in order to record material.This damping layer fits in this coating layer side of this annular base plate, to prolong the reaction time of this CD to vibration.
The present invention also discloses a kind of manufacture method of making above-mentioned CD, and its step comprises makes this annular base plate; Form this coating layer on this recording surface; And this damping layer of fitting is in this coating layer side of this annular base plate.
The CD and the manufacture method thereof of vibration when reading and writing according to inhibition of the present invention, the vibrational state that it can effectively change and reduce CD has solved a vibration problem that is produced under all read-writes times speed, effectively promotes the compatibility of the CD of recording portion rigidity deficiency.In addition, can not cause the warpage of annular base plate when damping layer fits in annular base plate, so CD is easy to produce, can effectively improves qualification rate and reduce production costs because the plane character of damping layer is not good.
[description of drawings]
Figure 1A is a synoptic diagram, shows the vertical view of a known CD.
Figure 1B is a synoptic diagram, shows the structure of a known CD.
Fig. 2 is a synoptic diagram, shows the structure of the CD that another is known.
Fig. 3 A is a synoptic diagram, shows the vertical view of another known CD.
Fig. 3 B is a synoptic diagram, shows the structure of another known CD.
Fig. 4 is a synoptic diagram, the structure of the CD of vibration when the inhibition of demonstration preferred embodiment of the present invention is read and write.
Fig. 5 is the manufacturing process of CD of the present invention.
The axial focusing actuating quantity of the laser read head of Fig. 6 A display drive apparatus when reading known CD.
The axial focusing actuating quantity of the laser read head of Fig. 6 B display drive apparatus when reading CD of the present invention.
[embodiment]
Hereinafter with reference to correlative type, the CD and the manufacture method thereof of vibration when illustrating according to the inhibition of preferred embodiment of the present invention read-write, wherein components identical will be illustrated with identical reference marks.
Please refer to Fig. 4, the CD 4 of vibration comprised an annular base plate 43, a coating layer 44 and a damping layer 45 when the inhibition of preferred embodiment of the present invention was read and write.Annular base plate 43 has the support sector 41 of an inboard and the recording portion 42 in an outside, and annular base plate 43 has a recording surface 431 corresponding to recording portion 42.Coating layer 44 is formed on the recording surface 431, in order to record material.Damping layer 45 fits in coating layer 44 sides of annular base plate 43, to prolong the reaction time of 4 pairs of vibrations of CD.That is increase the ratio of damping of CD 4 with soft damping layer 45, to increase the CD opposing and change the ability of (i.e. vibration).
The only local damping layer 45 that attaches of CD 4 shown in Figure 4, preferable attaching scope are the diameter of the diameter of damping layer 45 more than or equal to 1/3rd CD 4, and smaller or equal to the diameter of CD 4.The CD that with the diameter is 120mm is an example, and the diameter of damping layer is then between between the 40mm to 120mm.Therefore technical characterictic of the present invention is applicable to the CD of various sizes, and for example diameter dimension is between 110mm to 130mm, or between the CD of 70mm to 90mm.
CD 4 shown in Figure 4, the thickness of the support sector 41 of its annular base plate 43 is greater than the thickness of recording portion 42.For example, recording portion 42 thickness of annular base plate 43 are between 0.55mm to 0.65mm, and support sector's 41 thickness of annular base plate 43 are then between 0.66mm to 1.6mm.Similarly, the annular base plate 33 that annular base plate 43 also can be as shown in Figure 3 has several breach in its support sector's 41 outer rims that protrude in recording surface 431, and/or extends outward an inclined-plane.
44 of coating layers comprise at least one recording layer 441, a reflection horizon 442 and a protective seam 443.Recording layer 441 is positioned on the recording surface 431; Reflection horizon 442 is positioned on the recording layer 441; 443 of protective seams are positioned on the reflection horizon 442.Wherein, reflection horizon 442 is made up of metal, and recording layer 441 is organic dyestuff or inorganic dyestuff.
The person of an ordinary skill in the technical field can change the composition of coating layer to change the purposes of CD.For example, coating layer 44 can comprise one first dielectric layer, a recording layer, one second dielectric layer, an isolation layer, a reflection horizon and a protective seam, and stacks gradually on recording surface 431.Wherein, this first dielectric layer and this second dielectric layer are made up of dielectric materials; This recording layer is made up of alloy; This isolation layer is made up of metal or nonmetal institute; And this reflection horizon is made up of metal.
Please refer to Fig. 5, the manufacture method of the above-mentioned CD 4 of manufacturing of preferred embodiment of the present invention is described.At first, make an annular base plate 43 (S51); Then, form a coating layer 44 (S52) on recording surface 431; At last, fit a damping layer 45 in coating layer 44 sides of annular base plate 43.
The axial focusing actuating quantity of the laser read head of Fig. 6 A display drive apparatus when reading known CD.The axial focusing actuating quantity of the laser read head of Fig. 6 B display drive apparatus when reading CD of the present invention.Laser read head is for the coating layer of laser focusing in CD, thereby moves up and down along with the vibration of CD, so the axial focusing actuating quantity of laser read head can demonstrate the vibration situation of CD.In Fig. 6 A and Fig. 6 B, horizontal ordinate is the CD radius, unit is mm, ordinate is the axial focusing actuating quantity of laser read head, unit is μ m, and as can be seen, no matter much CD radius of the present invention is, laser read head axial focusing actuating quantity when reading CD of the present invention shows that all less than the axial focusing actuating quantity that is positioned at the corresponding radial location of known CD the damping layer in the CD of the present invention can effectively change and reduce the vibration of CD when read-write.
Being noted that, more than is to explain in the known CD that does not contain compensating plate to attach a damping layer.Yet, attached the CD of compensating plate, if when its rigidity is still disliked deficiency, also can on compensating plate, attach a damping layer to change and the vibrational state of reduction CD.And when making this type of CD, then must be before the applying damping layer first applying compensating plate.
The CD and the manufacture method thereof of vibration when reading and writing according to inhibition of the present invention, behind attaching one damping layer, can effectively change and reduce the vibrational state of CD, solved the doubly fast vibration problem that is produced down of all read-writes, the compatibility of the CD of recording portion rigidity deficiency can effectively be promoted, and can under various times of speed, read and write.In addition, because damping layer is a soft materials, so it can not cause the warpage of annular base plate when fitting in annular base plate because the plane character of damping layer is not good, makes CD be easy to produce, and effectively improves qualification rate and reduces production costs.
The above only is embodiment, but not is restriction protection scope of the present invention.Anyly be familiar with the modification that this operator all can carry out equivalence according to the embodiment of the invention described above, and do not break away from protection scope of the present invention.For example, the CD of single-surface double-layer or several record layers need have separately the reflection horizon and protective seam on each recording layer, so the coating layer of CD of the present invention may comprise reflection multilayer layer and protective seam.So any equivalent modifications or change that the present invention is carried out all should be contained in protection scope of the present invention.
The component symbol explanation:
1,2,3 CDs
11 support sectors
12 record sections
13,21,33 annular base plate
14 coating layers
141 recording layers
142 reflecting layer
143 protective layers
15 compensating plates
31 breach
32 inclined-planes
4 CDs
41 support sectors
42 recording portion
43 annular base plate
431 recording surfaces
44 coating layers
441 recording layers
442 reflection horizon
443 protective seams
45 damping layers
The manufacturing step of S51～S53 CD of the present invention
Claims (20)
1. CD that suppresses to read and write time vibration, it is characterized in that: it comprises:
One annular base plate have an inboard support sector and an outside recording portion, and this annular base plate has a recording surface corresponding to this recording portion; The thickness of this support sector is greater than the thickness of this recording portion;
One coating layer is formed on this recording surface, in order to record material; And
One damping layer fits in this coating layer side of this annular base plate, prolonging the reaction time of this CD to vibration,
Wherein the diameter of this damping layer is more than or equal to the diameter of this CD of 1/3rd, and less than the diameter of this CD.
2. the CD of vibration when inhibition as claimed in claim 1 is read and write, it is characterized in that: the thickness of this support sector of this annular base plate is between 0.66mm to 1.6mm, and the thickness of this recording portion is between 0.55mm to 0.65mm.
3. the CD of vibration when inhibition as claimed in claim 1 is read and write, it is characterized in that: this support sector's outer rim that protrudes in this recording surface in this annular base plate has several breach.
4. the CD of vibration when inhibition as claimed in claim 3 is read and write, it is characterized in that: this support sector's outer rim that protrudes in this recording surface in this annular base plate extends outward an inclined-plane.
5. the CD of vibration during inhibition as claimed in claim 1 read-write is characterized in that: this cd diameter is between 110mm to 130mm, or between 70mm to 90mm.
6. the CD of vibration when inhibition as claimed in claim 1 is read and write is characterized in that: more comprise:
One compensating plate fits between this coating layer and this damping layer, makes this support sector identical with the thickness of this recording portion.
7. the CD of vibration when inhibition as claimed in claim 1 is read and write, it is characterized in that: this coating layer comprises:
At least one recording layer is positioned on this recording surface;
At least one reflection horizon is positioned on each this recording layer; And
At least one protective seam is positioned on each this reflection horizon.
8. the CD of vibration when inhibition as claimed in claim 7 is read and write, it is characterized in that: this reflection horizon is made up of metal, and this recording layer is organic dyestuff or inorganic dyestuff.
9. the CD of vibration when inhibition as claimed in claim 1 is read and write, it is characterized in that: this coating layer comprises:
One first dielectric layer is positioned on this recording surface;
One recording layer is positioned on this first dielectric layer;
One second dielectric layer is positioned on this recording layer;
One isolation layer is positioned on this second dielectric layer;
One reflection horizon is positioned on this isolation layer; And
One protective seam is positioned on this reflection horizon.
10. the CD of vibration when inhibition as claimed in claim 9 is read and write is characterized in that:
This first dielectric layer and this second dielectric layer are made up of dielectric materials;
This recording layer is made up of alloy.
This isolation layer is made up of metal or nonmetal institute; And
This reflection horizon is made up of metal;
11. the manufacture method of a CD that vibrates when suppressing to read and write is characterized in that: comprise following steps:
Make an annular base plate, have an inboard support sector and an outside recording portion, and this annular base plate has a recording surface corresponding to this recording portion, the thickness of this support sector is greater than the thickness of this recording portion;
Form a coating layer on this recording surface, in order to record material; And
Fit a damping layer in this coating layer side of this annular base plate, with prolong this CD to the vibration reaction time,
Wherein the diameter of this damping layer is more than or equal to the diameter of this CD of 1/3rd, and less than the diameter of this CD.
The manufacture method of the CD of vibration when 12. inhibition as claimed in claim 11 is read and write, it is characterized in that: the thickness of this support sector of this annular base plate is between 0.66mm to 1.6mm, and the thickness of this recording portion is between 0.55mm to 0.65mm.
The manufacture method of the CD of vibration when 13. inhibition as claimed in claim 11 is read and write, it is characterized in that: this support sector's outer rim that protrudes in this recording surface in this annular base plate has several breach.
The manufacture method of the CD of vibration when 14. inhibition as claimed in claim 13 is read and write, it is characterized in that: this support sector's outer rim that protrudes in this recording surface in this annular base plate extends outward an inclined-plane.
15. the manufacture method of the CD of vibration during inhibition as claimed in claim 11 read-write is characterized in that: the diameter of this CD is between 110mm to 130mm, or between 70mm to 90mm.
The manufacture method of the CD of vibration when 16. inhibition as claimed in claim 11 is read and write, it is characterized in that: its step more comprises:
Before this damping layer of fitting, the compensating plate of fitting earlier makes this support sector identical with the thickness of this recording portion in the coating layer side of this annular base plate.
The manufacture method of the CD of vibration when 17. inhibition as claimed in claim 11 is read and write, it is characterized in that: this coating layer comprises:
At least one recording layer is positioned on this recording surface;
At least one reflection horizon is positioned on each this recording layer; And
At least one protective seam is positioned on each this reflection horizon.
The manufacture method of the CD of vibration when 18. inhibition as claimed in claim 17 is read and write, it is characterized in that: this reflection horizon is made up of metal, and this recording layer is organic dyestuff or inorganic dyestuff.
The manufacture method of the CD of vibration when 19. inhibition as claimed in claim 11 is read and write, it is characterized in that: this coating layer comprises:
One first dielectric layer is positioned on this recording surface;
One recording layer is positioned on this first dielectric layer;
One second dielectric layer is positioned on this recording layer;
One isolation layer is positioned on this second dielectric layer;
One reflection horizon is positioned on this isolation layer; And
One protective seam is positioned on this reflection horizon.
The manufacture method of the CD of vibration when 20. inhibition as claimed in claim 19 is read and write, it is characterized in that: this first dielectric layer and this second dielectric layer are made up of dielectric materials;
This recording layer is made up of alloy;
This isolation layer is made up of metal or nonmetal institute; And
This reflection horizon is made up of metal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510125081A CN1967683B (en) | 2005-11-17 | 2005-11-17 | CD restrained read-write quiver and its manufacture method |
| HK07000980A HK1103470A1 (en) | 2005-11-17 | 2007-11-05 | Optical disc capable of suppressing vibration while reading/writing and the method of fabricating the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510125081A CN1967683B (en) | 2005-11-17 | 2005-11-17 | CD restrained read-write quiver and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1967683A CN1967683A (en) | 2007-05-23 |
| CN1967683B true CN1967683B (en) | 2010-05-05 |
Family
ID=38076406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510125081A Expired - Fee Related CN1967683B (en) | 2005-11-17 | 2005-11-17 | CD restrained read-write quiver and its manufacture method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1967683B (en) |
| HK (1) | HK1103470A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI390529B (en) * | 2008-10-28 | 2013-03-21 | Princo Corp | Optical disk and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5258972A (en) * | 1990-06-25 | 1993-11-02 | Msc Technology Corporation | Magnetic damping disc for improved CD player performance |
| US5458940A (en) * | 1991-04-01 | 1995-10-17 | Minnesota Mining And Manufacturing Company | Optical disk with vibration dampening |
-
2005
- 2005-11-17 CN CN200510125081A patent/CN1967683B/en not_active Expired - Fee Related
-
2007
- 2007-11-05 HK HK07000980A patent/HK1103470A1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5258972A (en) * | 1990-06-25 | 1993-11-02 | Msc Technology Corporation | Magnetic damping disc for improved CD player performance |
| US5458940A (en) * | 1991-04-01 | 1995-10-17 | Minnesota Mining And Manufacturing Company | Optical disk with vibration dampening |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1103470A1 (en) | 2007-12-21 |
| CN1967683A (en) | 2007-05-23 |
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Effective date of registration: 20130416 Address after: Hsinchu City, Taiwan, China Patentee after: Jubai Science and Technology Co., Ltd. Patentee after: Dubai giant Limited by Share Ltd Address before: Hsinchu City, Taiwan, China Patentee before: Jubai Science and Technology Co., Ltd. Patentee before: Princo America Corporation |
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