CN1866368A - Optical disk substrate and optical disk - Google Patents
Optical disk substrate and optical disk Download PDFInfo
- Publication number
- CN1866368A CN1866368A CNA2005100739565A CN200510073956A CN1866368A CN 1866368 A CN1866368 A CN 1866368A CN A2005100739565 A CNA2005100739565 A CN A2005100739565A CN 200510073956 A CN200510073956 A CN 200510073956A CN 1866368 A CN1866368 A CN 1866368A
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- Prior art keywords
- recording
- teat
- ring
- type substrate
- base board
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Abstract
The disclosed CD substrate comprises: a ring substrate with an inner side support part and an outer record part with a record surface, and a projecting part overlaid to the support part with total thickness larger than the record part and included some gaps on edge toward axial center. This invention can reduce cost.
Description
[technical field]
The present invention relates to a kind of optic disc base board and CD, refer to a kind of optic disc base board and CD of making and can reducing cost of being easy to especially.
[background technology]
CD can store the data of multiple form, comprises image data, computer digital image shelves and normal words shelves.CD is 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 a substrate 14, a coating layer 15 and a compensating plate 16.And coating layer 15 comprises recording layer 151, reflection horizon 152 and protective seam 153, and each layer stacked gradually to the substrate 14 to form recording portion 12.16 of compensating plates and substrate 14 are fitted and are finished product CD 1.Wherein, the gauge thickness of substrate 14 is 0.6mm, and the thickness of compensating plate 16 is 0.6mm also, makes support sector's 11 thickness of finished product CD 1 reach 1.2mm and can supply the CD player clamping.
Yet still there is following problem in known CD.After the substrate 14 of known CD 1 needed to form respectively with compensating plate 16, in addition contraposition was fitted again, has so increased complexity and the degree of difficulty produced, produces unacceptable product easily, and production cost can't effectively be reduced.Simultaneously, CD 1 needs compensating plate 16 to increase the intensity of CD, when CD 1 is rotated in CD player, can more not increase material cost by the CD torsional deformation because of high speed rotating makes.Therefore, how effectively to reduce material cost, and be easy to make and promote yield, and can keep the intensity of CD constantly to make great efforts improved target for industry.
[summary of the invention]
At the problems referred to above, the object of the present invention is to provide a kind ofly to reduce cost and be easy to make to promote the optic disc base board and the CD of yields.
For reaching above-mentioned purpose, a kind of optic disc base board of the present invention is characterized in that: comprise:
One ring-type substrate, this ring-type substrate have an inboard support sector and an outside recording portion, and this recording portion has a recording surface; And a teat, being overlapped in this support sector, this teat has a support surface, and this plane, support surface place is different from this plane, recording surface place, and this teat outer rim has several breach towards axis direction; The superimposed thickness of this support sector and this teat is greater than the thickness of this recording portion.
The present invention also provides a kind of CD, it is characterized in that: comprise: an optic disc base board, and this optic disc base board comprises: a ring-type substrate, have an inboard support sector and an outside recording portion, this recording portion has a recording surface; And a teat, being overlapped in this support sector, this teat has a support surface, and this plane, support surface place is different from this plane, recording surface place, and this teat outer rim has several breach towards axis direction; Thickness after this support sector and this teat are superimposed is greater than the thickness of this recording portion; And a coating layer, be formed on this recording surface, for the usefulness of record material.
Optic disc base board of the present invention comprises a ring-type substrate and a teat.This ring-type substrate has an inboard support sector and an outside recording portion, and this recording portion has a recording surface.This teat then is overlapped in this support sector, this teat has a support surface, this plane, support surface place is different from this plane, recording surface place, and this teat outer rim has several breach towards axis direction, wherein, this support sector and this teat thickness after superimposed is greater than the thickness of this recording portion.CD of the present invention then is to form a coating layer on the recording surface of this optic disc base board, for the usefulness of record material.
According to optic disc base board of the present invention and CD, the thickness after superimposed and can directly supply the CD player clamping greater than the thickness of this recording portion because the support sector of this optic disc base board is with this teat, and can suppress optic disc base board generation warpage.In addition, the internal stress after the relief configuration of teat can be saved the material cost of making optic disc base board and be reduced the optic disc base board ejection formation reaches more perfect optical characteristics; The inclined-plane structure of teat outer rim then makes optic disc base board when ejection formation, and its formed substance filling more swimmingly reduces the generation of unacceptable product in mould.
[description of drawings]
Figure 1A is the vertical view of a known CD.
Figure 1B is the sectional view of a known CD.
Fig. 2 A is the vertical view of the optic disc base board of preferred embodiment of the present invention.
Fig. 2 B is the sectional view of the optic disc base board of preferred embodiment of the present invention.
Fig. 2 C is the sectional view of the optic disc base board of another preferred embodiment of the present invention.
Fig. 3 is the sectional view of the CD of preferred embodiment of the present invention.
Fig. 4 is the sectional view of the CD of another preferred embodiment of the present invention.
Fig. 5 A is the optical characteristics figure of the relative birefringence index of known CD.
Fig. 5 B is the optical characteristics figure of the relative birefringence index of the CD of preferred embodiment of the present invention.
[embodiment]
Hereinafter with reference to correlative type, optic disc base board and CD according to preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference marks.
The optic disc base board 2 of preferred embodiment of the present invention is shown in Fig. 2 A and Fig. 2 B, and it comprises a ring-type substrate 21 and a teat 22.Ring-type substrate 21 is provided with the recording portion 212 near the inboard support sector 211 and the close outside.Recording portion 212 has a recording surface 212a, and coating layer described later promptly is formed on the recording surface 212a.22 of teats are overlapped in support sector 211, and has a support surface 22a, thickness after the support sector 211 of ring-type substrate 21 and teat 22 are superimposed is between 0.66mm to 1.6mm, when making CD insert CD player, and the action that CD player can clamping support surface 22a be read and write; The thickness of the recording portion 212 of ring-type substrate 21 is then between 0.55mm to 0.65mm, and therefore, support surface 22a and recording surface 212a be not or not same plane, that is the plane P 1 at support surface 22a place is different from the plane P 2 at recording surface 212a place.Both can be in the same side of ring-type substrate 12, shown in Fig. 2 B, and also can be at the phase heteropleural of ring-type substrate, shown in Fig. 2 C.Again, teat 22 outer rims have several breach 221 towards axis direction, make teat 22 be gear-like.The person of noting, ring-type substrate 21 can be one-body molded with teat 22, for example makes in the mode of ejection formation, can also two modes of fitting mutually combine.The person of noting, the diameter of ring-type substrate 21 is preferably 80mm between 70mm to 90mm; Or, be preferably 120mm between 110mm to 130mm; Also can be other size.
In addition, the optic disc base board of preferred embodiment of the present invention more comprises an inclined-plane 222, and the plane P 1 at its 22a place, self-supporting surface extends to the plane P 2 at recording surface 212a place, and is arranged between teat 22 outer rims and the recording portion 212.
The CD 3,4 of preferred embodiment of the present invention as shown in Figures 3 and 4, it comprises an optic disc base board 2 and a coating layer 35,45.Wherein the architectural feature of optic disc base board 2 does not repeat them here as previously mentioned, and coating layer 35 then is formed on the recording surface 212a, in order to the usefulness of record material.Form according to different coating layer 35,45, make CD can be applicable to the purposes of difference.For example the coating layer 35 of Fig. 3 is to be stacked gradually on recording surface 212a by recording layer 351, reflection horizon 352 and protective seam 353, and recording layer 351 is made up of dyestuff, and reflection horizon 352 is made up of metal.And the coating layer 45 of Fig. 4 is to be stacked gradually in recording surface 212a by first dielectric layer 451, recording layer 452, second dielectric layer 453, isolation layer 454, reflection horizon 455 and protective seam 456; first dielectric layer 451 and second dielectric layer 453 are made up of dielectric materials; recording layer 452 by alloy and up and down separation layer formed; isolation layer 454 is made up of metal or nonmetal institute; reflection horizon 455 is made up of metal, and 4 of the CDs of its composition are a phase change optical disk.The composition of CD 3,4 can be as the application of DVD-Video, DVD-ROM, DVD-RW, DVD+RW, DVD+R and DVD-RAM.
Optic disc base board of the present invention and CD except structural strength and angularity can meet the demand, also can obtain better optical characteristics.Please refer to Fig. 5 A and 5B, wherein Fig. 5 A is the optical characteristics figure of relative birefringence index of the CD that do not have breach 221, and Fig. 5 B then is the optical characteristics figure of the relative birefringence index of CD of the present invention.Relative birefringence index mean value in known CD radius 22.8mm, 40.0mm and 57.3mm position is respectively 74nm, 10nm and reaches-25nm.CD of the present invention in the relative birefringence index mean value of relative position be respectively-19nm ,-8nm and-24nm is lower than the relative birefringence index of known CD, therefore can obtain perfectly optical characteristics.
According to optic disc base board of the present invention and CD, owing to make support sector's thickness of optic disc base board thicker behind the superimposed teat, can directly supply the CD player clamping, therefore can not need compensating plate to increase the thickness of CD.Simultaneously, the structure that support sector's thickness of optic disc base board is thicker also can suppress the ring-type substrate and produce warpage, optic disc base board is made easily and higher yield arranged.The relief configuration of teat then can be saved the material cost of making optic disc base board, and still can possess this intensity that has of optic disc base board, and can reduce the optic disc base board internal stress, and reaches more perfect optical characteristics.In addition, the inclined-plane of teat outer rim structure then makes optic disc base board when ejection formation, and its formed substance filling more swimmingly reduces the generation of unacceptable product, further to reduce production costs in mould.
The above only is a specific embodiment, and also unrestricted enforcement of the present invention.Any be familiar with this operator all can carry out according to the embodiment of the invention described above the equivalence modification, for example, the CD of the preferred embodiment of the present invention compensating plate of not fitting increases the thickness and the intensity of CD, however the person of ordinary skill in the field can be according to specific demand the applying compensating plate.
Claims (25)
1. optic disc base board is characterized in that: comprise:
One ring-type substrate, this ring-type substrate have an inboard support sector and an outside recording portion, and this recording portion has a recording surface; And
One teat is overlapped in this support sector, and this teat has a support surface, and this plane, support surface place is different from this plane, recording surface place, and this teat outer rim has several breach towards axis direction;
The superimposed thickness of this support sector and this teat is greater than the thickness of this recording portion.
2. optic disc base board as claimed in claim 1 is characterized in that: more comprise:
One inclined-plane, this inclined-plane extends to this plane, recording surface place from this plane, support surface place, and is arranged between this teat outer rim and this recording portion.
3. optic disc base board as claimed in claim 1 is characterized in that: the thickness after this support sector and this teat are superimposed is between 0.66mm to 1.6mm.
4. optic disc base board as claimed in claim 1 is characterized in that: the thickness of this recording portion is between 0.55mm to 0.65mm.
5. optic disc base board as claimed in claim 1 is characterized in that: the diameter of this ring-type substrate is between 70mm to 90mm.
6. optic disc base board as claimed in claim 1 is characterized in that: the diameter of this ring-type substrate is between 110mm to 130mm.
7. optic disc base board as claimed in claim 1 is characterized in that: this support surface and this recording surface are located at the same side of this ring-type substrate.
8. optic disc base board as claimed in claim 1 is characterized in that: this support surface and this recording surface are located at the heteropleural mutually of this ring-type substrate.
9. optic disc base board as claimed in claim 1 is characterized in that: this ring-type substrate and this teat are one-body molded.
10. optic disc base board as claimed in claim 1 is characterized in that: this ring-type substrate and this teat are two and combine.
11. a CD is characterized in that: comprise:
One optic disc base board, this optic disc base board comprises:
One ring-type substrate has an inboard support sector and an outside recording portion, and this recording portion has a recording surface; And
One teat is overlapped in this support sector, and this teat has a support surface, and this plane, support surface place is different from this plane, recording surface place, and this teat outer rim has several breach towards axis direction;
Thickness after this support sector and this teat are superimposed is greater than the thickness of this recording portion; And
One coating layer is formed on this recording surface, for the usefulness of record material.
12. CD as claimed in claim 11 is characterized in that: more comprise:
One inclined-plane, this inclined-plane extends to this plane, recording surface place from this plane, support surface place, and is arranged between this teat outer rim and this recording portion.
13. CD as claimed in claim 11 is characterized in that: more comprise:
One compensating plate is overlapped in this recording surface.
14. CD as claimed in claim 11 is characterized in that: the thickness after this support sector and this teat are superimposed is between 0.66mm to 1.6mm.
15. CD as claimed in claim 11 is characterized in that: the thickness of this recording portion is between 0.55mm to 0.65mm.
16. CD as claimed in claim 11 is characterized in that: the diameter of this ring-type substrate is between 70mm to 90mm.
17. CD as claimed in claim 11 is characterized in that: the diameter of this ring-type substrate is between 110mm to 130mm.
18. CD as claimed in claim 11 is characterized in that: this support surface and this recording surface are located at the same side of this ring-type substrate.
19. CD as claimed in claim 11 is characterized in that: this support surface and this recording surface are located at the heteropleural mutually of this ring-type substrate.
20. CD as claimed in claim 11 is characterized in that: this ring-type substrate and this teat are one-body molded.
21. CD as claimed in claim 11 is characterized in that: this ring-type substrate and this teat are two and combine.
22. CD as claimed in claim 11 is characterized in that: this coating layer comprises:
At least one recording layer is positioned on this recording surface;
One reflection horizon is positioned on this recording layer; And
One protective seam is positioned on this reflection horizon.
23. CD as claimed in claim 22 is characterized in that: this recording layer is made up of dyestuff, and this reflection horizon is made up of metal.
24. CD as claimed in claim 11 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 heat dissipating layer; And
One protective seam is positioned on this reflection horizon.
25. CD as claimed in claim 24 is characterized in that:
This first dielectric layer and this second dielectric layer are made up of dielectric materials;
This recording layer by alloy and up and down separation layer formed;
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 |
|---|---|---|---|
| CNB2005100739565A CN100363999C (en) | 2005-05-19 | 2005-05-19 | Optical disk substrate and optical disk |
| PCT/US2006/015980 WO2006116581A2 (en) | 2005-04-28 | 2006-04-26 | Optical disk substrate and optical disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100739565A CN100363999C (en) | 2005-05-19 | 2005-05-19 | Optical disk substrate and optical disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1866368A true CN1866368A (en) | 2006-11-22 |
| CN100363999C CN100363999C (en) | 2008-01-23 |
Family
ID=37425369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100739565A Expired - Fee Related CN100363999C (en) | 2005-04-28 | 2005-05-19 | Optical disk substrate and optical disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100363999C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102187390B (en) * | 2008-10-28 | 2013-03-27 | 巨擘科技股份有限公司 | Optical disc and manufacturing method thereof |
| CN105122366A (en) * | 2013-01-28 | 2015-12-02 | 乌克兰国家科学院信息记录研究所 | Data readout system from optical media |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10269621A (en) * | 1997-03-25 | 1998-10-09 | Sony Corp | Optical disk substrate and optical disk using the substrate |
| JPH10269620A (en) * | 1997-03-26 | 1998-10-09 | Sanyo Electric Co Ltd | Optical disk |
-
2005
- 2005-05-19 CN CNB2005100739565A patent/CN100363999C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102187390B (en) * | 2008-10-28 | 2013-03-27 | 巨擘科技股份有限公司 | Optical disc and manufacturing method thereof |
| CN105122366A (en) * | 2013-01-28 | 2015-12-02 | 乌克兰国家科学院信息记录研究所 | Data readout system from optical media |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100363999C (en) | 2008-01-23 |
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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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