CN2445404Y

CN2445404Y - Light disk with pattern

Info

Publication number: CN2445404Y
Application number: CN00207404U
Authority: CN
Inventors: 肖辉文
Original assignee: GOLDSENSE LASER AV PRODUCTION Ltd
Current assignee: GOLDSENSE LASER AV PRODUCTION Ltd
Priority date: 2000-03-29
Filing date: 2000-03-29
Publication date: 2001-08-29
Anticipated expiration: 2010-03-29
Also published as: HK1028703A2

Abstract

The utility model discloses an optical disc with patterns, which comprises a first basal piece (4), a first metal layer (5) and a device used for displaying patterns on the surface of the optical disc, wherein the upper surface of the first basal piece (4) is provided with an annular datum recording area (3) surrounding a center hole (1) of the optical disc; a pit representing data is arranged in the datum recording area (3); the first metal layer (5) is coated on the upper surface of the first basal piece (4), and at least the datum recording area (3) is covered by the lower surface of the first basal piece (4) and is used for reflecting a laser beam which penetrates through the first basal piece (4) and irradiates to the datum recording area, and the device used for displaying the patterns can be pits or tables with changeable shapes positioned in the datum recording area (3) and combined into patterns.

Description

Patterned CD

The utility model relates to a kind of optical disc recording medium, relates in particular to the CD that has pattern or literal on a kind of surface.

CD is mainly used in the usefulness of stored sound, image and data, generally has only circular size, and external diameter is 120 millimeters or 80 millimeters.CD mainly contains two classes, i.e. CD dish (compact disk) and DVD dish (digital universal disc).

The CD packing can be divided into CD-DA, CD-I, CD-Photo, CD-G, CD-ROM, CD-ROM XA, VCD, multiple forms such as CD-R, CD-RW according to various functions and record format.The DVD dish also can be divided into DVD-Video (video DVD), DVD-Audio (audio frequency DVD), DVD-ROM, DVD-R, multiple forms such as DVD-RW, DVD-RAM.

Conventional CD has such layer structure, and the bottom is a polycarbonate substrate, is data record layer, metal film layer and layer of varnish successively on it.This CD is made by following technology.At first make a circular substrate; With the matrix compacting circular substrate of making in advance that stores data, on substrate surface, suppress the hole line of representative data; Then on the substrate surface that is suppressed with the hole line, plate with the layer of metal film, so that reflect beams of laser light; At last, in order to protect metallic film and anti-oxidation, on the metallic film surface, apply one deck varnish, and with ultraviolet ray cure process in addition.

This conventional CD does not have pattern or literal (being referred to as pattern hereinafter) from the teeth outwards.In order to produce pattern on a surface of CD, the common practice is to republish some simple patterns as decoration on layer of varnish, or prints the explanation of doing CD content of some literal.But because the restriction of technology, directly the pattern that prints on optical disc surface is fairly simple, not attractive in appearance, not exquisite.

Therefore, exist in the prior art and a kind ofly utilize simple technology on optical disc surface, to produce the exquisite pattern or the demand of literal, thereby enlarge the range of application of CD.

In order to satisfy the demand that exists in the prior art, the purpose of this utility model provide a kind of new structure, have a CD of pattern thereon.Pattern on this CD can be made by simple technology, and very exquisite, attractive in appearance.And if necessary, in addition can be on data recorded area pattern-making and do not destroy data.

For achieving the above object, the utility model provides a kind of CD, comprising:

First substrate, the surface has an annular data recorded area around cd center hole thereon, is provided with the hole of representative data in the data recorded area;

Be plated in the first metal layer of first substrate upper surface, its lower surface is the cover data recording areas at least, is used for reflecting ﹠ transmitting first substrate and incides laser beam on the data recorded area; And

Be used on optical disc surface, presenting the device of pattern.

The above-mentioned device that is used for presenting pattern can be to be positioned at being combined into of data recorded area hole pattern, change of shape or platform.

The above-mentioned device that is used to present pattern also can be connected in the first metal layer upper surface, figuratum second sheet metal of imprinting on it.

The above-mentioned device that is used to present pattern can also be connected in the first metal layer upper surface, the figuratum film of printing on it.

The above-mentioned device that is used to present pattern also can be in addition have adequate thickness, the figuratum the first metal layer of its upper surface imprinting.

The above-mentioned device that is used to present pattern can also be made up of following parts:

Be connected in second substrate of the first metal layer and first substrate;

Be connected in second substrate, figuratum second sheet metal of imprinting on it.

According to the utility model, can on surface of CD or two surfaces, produce exquisite pattern, so greatly enlarged the usable range of CD, can develop many new products in view of the above.For example, the exquisite greeting card, business card, security personnel's card, products catalogue etc. that have CD.

In addition, if when adopting noble metal as gold, silver, platinum as the material of the first metal layer, because these metals are difficult for oxidation, can get rid of the varnish coating procedure and the UV cured processing procedure that extensively adopt in the existing optical disc production technology fully, simplify optical disc production technology, improved production efficiency.Simultaneously, make CD or the Related product produced exquisite more such as the greeting card that has CD, business card, security personnel's card, products catalogue etc.

In conjunction with the drawings to the detailed description of the utility model preferred forms, above-mentioned and other feature and advantage of the present utility model will be more obvious.

Fig. 1 is the top view of band pattern CD of the present utility model;

Fig. 2 is the sectional view of first embodiment of band pattern CD of the present utility model;

Fig. 3 is the sectional view of second embodiment of band pattern CD of the present utility model;

Fig. 4 is the sectional view of the 3rd embodiment of band pattern CD of the present utility model;

Fig. 5 is the sectional view of the 4th embodiment of band pattern CD of the present utility model;

Fig. 6 is the sectional view of the 5th embodiment of band pattern CD of the present utility model.

Describe preferred forms of the present utility model below in detail.

Fig. 1 is the top view of band pattern CD of the present utility model.Label 1 is a center pit, and label 3 is a data recorded area, and they are formed on first substrate 4 jointly.Data recorded area 3 is an annular region around center pit 1.In data recorded area 3,, can store a large amount of sound, image and data with hole line form according to corresponding record format according to different purposes.Part between two holes facing mutually is called platform.

The record format of data recorded area 3 can meet the standard of any relevant optical disk record format in the prior art, thereby makes patterned CD and the conventional CD compatibility of Fig. 1, so as can be in conventional CD player normal play.

Certainly, the record format of data recorded area 3 also can meet the standard of any other relevant optical disk record format that may occur in the future.The different recording formats that data recorded area 3 is taked does not constitute restriction of the present utility model.

First substrate 4 can be any two-dimensional shapes.For example, first substrate 4 can be rectangle, ellipse, heart, triangle etc., or irregular figure.On the upper surface of first substrate 4, even on the upper surface of data recorded area 3,, can present various patterns by means of the hereinafter described device that is used on optical disc surface, presenting pattern.So the patterned CD of structure can be used for various uses, for example as the business card of having CD or DVD function, security personnel's card, calendar, propaganda material, greeting card, products catalogue or the like.Fig. 1 illustrates first substrate 4 and is rectangular example.

If make patterned CD shown in Figure 1 have the shape of conventional CD, first substrate 4 can be cooked circularly, and the entire upper surface that can make first substrate 4 is as data recorded area 3.The material of first substrate 4 can be any suitable material in the prior art, for example, is the polycarbonate that conventional compact disc substrate adopts.

The diameter of center pit 1 is generally 15 millimeters, and the overall diameter of data recorded area 3 is generally 48 millimeters to 120 millimeters.Various sizes given here are just for patterned CD is had and profile like the conventional disc, so that play in conventional CD player.These sizes do not constitute the restriction to center pit 1, data recorded area 3 and first substrate, 4 physical sizes.

Fig. 2 is the sectional view of first embodiment of band pattern CD of the present utility model.Label 1 is represented the center pit of CD, label 3 representative data recording areas, and label 4 is represented first substrate, and label 5 is represented the first metal layer.The material of the first metal layer 5 can be any metal, as aluminium.In order to make exquisite more CD, can adopt noble metal, for example gold, silver or platinum etc.Noble metal is difficult for oxidation, therefore, can exempt varnish coating procedure and UV cured processing procedure that prior art extensively adopts.

The first metal layer 5 is plated on the upper surface of first substrate 4.The first metal layer 5 can cover the entire upper surface of first substrate 4, at least fully cover data recording areas 3.The first metal layer 5 on data recorded area 3 has first thickness, and first thickness is enough to make the first metal layer 5 reflecting ﹠ transmittings first substrate 4 to incide laser beam on the data recorded area 3.For example, first thickness can be about 50 millimicrons.

Read for optical head by hole in the data recorded area 3 and platform laser light reflected light beam, and be decoded as data.The working method of optical head is known by those skilled in the art, needn't state more.

In the prior art, the hole of representative data has the shape of regulation in the data recorded area, must meet certain technical manual.For example, the average height in hole is 200 dusts, 1.378 microns of the length average out to of gap between the hole or platform.In the prior art, CD is made by matrix compacting substrate.In the process of making matrix, space rate average out to 1.1275 mm/second of laser ablation matrix.The inventor finds by a large amount of experiments, in the scope that technical manual allows, change the shape in hole or the shape of platform a little, do not influence the data of representative, but but can have beyond thought technique effect, the hole of promptly a large amount of change of shape or platform can be combined into pattern on macroscopic view.

Therefore, in order on CD, to produce pattern, especially on data recorded area 3, produce pattern, can be according to the needs of the pattern of made, in data recorded area 3, select the hole or the platform of some, their shape of slight modification under the data conditions of not destroying representative.Like this, on macroscopic view, the hole of change of shape or platform promptly are combined into the pattern of made.This pattern presents under the dull background that the hole or the platform of conventional shape presents.

Aforesaid hole pattern, change of shape or the platform of being combined into constitutes the device that is used for presenting pattern on optical disc surface in the utility model first embodiment.

In CD shown in Figure 2, when the first metal layer 5 being electroplated onto certain thickness (for example 150 millimicrons), the pattern of made will very clearly present.

The concrete manufacturing before the CD shown in Figure 2 can be made a matrix that has pattern in advance.Utilize the angle and the power of special programmed control laser imprinting head, hole its shape of slight modification under the data conditions of not destroying representative that imprinting is gone out.The pattern of imprinting only is that with the difference that is made in the pattern on the CD their concaveconvex shape is complementary on the matrix.

Fig. 3 is the sectional view of second embodiment of band pattern CD of the present utility model; Among the figure among each label and Fig. 2 corresponding label have identical meanings.Difference is that the first metal layer 5 has second thickness, and second thickness is five to ten times of first thickness shown in Figure 1.Second thickness makes it possible to utilize laser imprinting pattern on the upper surface of the first metal layer 5.First substrate 4 is 0.5 to 1.4 millimeter with the gross thickness of the first metal layer 5 among Fig. 3.

The imprinting pattern can adopt any way that is suitable in the prior art on the first metal layer 5, and for example, Laser Welding (LBW) is carved method, hand engraving method, mold hot platen press and electro-erosion process etc.

Fig. 4 is the sectional view of the 3rd embodiment of band pattern CD of the present utility model; Among the figure among each label and Fig. 2 corresponding label have identical meanings.As shown in Figure 4, on the upper surface of the first metal layer 5, second sheet metal 7 is set.Can on the upper surface of second sheet metal 7, suppress in advance or imprinting literal or pattern, then, second sheet metal 7 be bonded on the first metal layer 5.The gross thickness of first substrate 4, the first metal layer 5 and second sheet metal 7 is 0.5 to 1.4 millimeter among Fig. 4.

Alternatively, earlier second sheet metal 7 is fixed on the first metal layer 5, and then on second sheet metal 7 the imprinting pattern.

As a kind of distortion of the 3rd embodiment shown in Figure 4, can be printed with the sticking card of film of exquisite pattern in advance to the first metal layer 5 with one.Alternatively, earlier with the sticking card of blank film to the first metal layer 5, and then on film printed patterns.

Fig. 5 and Fig. 6 are the sectional views of the 4th and the 5th embodiment of band pattern CD of the present utility model, among the figure all with similar in Fig. 2 but the CD that needn't have a pattern be installed on second substrate 6.The material of second substrate 6 can be identical with first substrate 4.

Among Fig. 5, have a groove on second substrate, 6 lower surfaces, utilize adhesive technology or supersonic welding connection technology, the first metal layer 5 and first substrate 4 are fixed in the groove.Upper surface at second substrate 6 is provided with second sheet metal 7.Can on the upper surface of second sheet metal 7, suppress in advance or imprinting literal or pattern, utilize adhesive technology or supersonic welding connection technology then, second sheet metal 7 is fixed to the upper surface of second substrate 6.Alternatively, earlier second sheet metal 7 is fixed on second substrate 6, and then on second sheet metal 7 the imprinting pattern.

Among Fig. 5, first substrate 4 is 0.5 to 1.4 millimeter with the gross thickness of the first metal layer 5, and the gross thickness of second substrate 6 and second sheet metal 7 is 1.0 to 3.0 millimeters.

Among Fig. 6, second substrate 6 has a through hole that runs through its upper and lower surface, utilizes adhesive technology or supersonic welding connection technology, and the first metal layer 5 and first substrate 4 are fixed in the through hole.At the upper surface of second substrate 6, and the upper surface of the first metal layer 5 that exposes from through hole, second sheet metal 7 is set.Can on the upper surface of second sheet metal 7, suppress in advance or imprinting literal or pattern, utilize adhesive technology or supersonic welding connection technology then, second sheet metal 7 is fixed to the upper surface of second substrate 6 and the upper surface of the first metal layer 5 that exposes from through hole.Alternatively, earlier second sheet metal 7 is fixed to second substrate, 6 upper surfaces and the upper surface of the first metal layer 5 that exposes from through hole, and then on second sheet metal 7 the imprinting pattern.

Among Fig. 6, the gross thickness of first substrate 4 and the first metal layer 5, or the thickness of second substrate 6 is 0.5 to 1.4 millimeter, the gross thickness of second substrate 6 and second sheet metal 7 is 0.5 to 1.4 millimeter.

In order in conventional CD player, to play patterned CD of the present utility model, for Fig. 2 to the patterned CD shown in Figure 4, distance between any point on first substrate, 4 outward flanges and the center of circle of center pit 1 must be less than or equal to 60 millimeters, to patterned CD shown in Figure 6, the distance between any point on second substrate, 6 outward flanges and the center of circle of center pit 1 must be less than or equal to 60 millimeters for Fig. 5.

In addition, when Fig. 2 to patterned CD shown in Figure 6 when being irregularly shaped, for can be in conventional CD player normal play, also need be at the CD lower surface that is used for contacting with the player pallet, about 40 millimeters places in the center of circle in distance center hole 1, stationary installation is set, shown in label among Fig. 2 to Fig. 68.Stationary installation 8 can be at least two projectioies that are formed on the substrate (according to physical size, being first substrate 4 or second substrate 6), also can be to be adhered to on-chip at least two glue limits, or a ring concentric with center pit 1.Here, the shape on projection or glue limit and quantity do not constitute restriction of the present utility model.Projection can with when making substrate and substrate form, also can be individually formed.

Conventional CD player all has and reads the ability that overall diameter is 80 millimeters a compact disk, because be that 80 millimeters places all have a specific recessed track at diameter on the pallet of CD player.When installing to the pallet of conventional CD player on to the patterned CD that is provided with stationary installation 8 shown in Figure 6 Fig. 2, it is in 80 millimeters the recessed track that stationary installation 8 will be engaged to diameter in the pallet.Thereby even patterned CD has irregular shape, it also can rotation stably in CD player.

Though below describe preferred forms of the present utility model in conjunction with the accompanying drawings in detail, for those skilled in the art in this area, can make various modifications and changes, and not deviate from scope of the present utility model and essence.Therefore, scope of the present utility model only is defined by the claims.

Claims

1. CD comprises:

First substrate (4), the surface has an annular data recorded area (3) around cd center hole (1) thereon, is provided with the hole of representative data in the data recorded area (3);

Be plated in the first metal layer (5) of first substrate (4) upper surface, its lower surface is cover data recording areas (3) at least, is used for reflecting ﹠ transmitting first substrate (4) and incides laser beam on the data recorded area (3);

Described CD is characterised in that also and comprises:

Be used on optical disc surface, presenting the device of pattern.

2. CD according to claim 1 is characterized in that the described device that is used to present pattern is to be combined into hole pattern, change of shape or platform.

3. CD according to claim 1, it is characterized in that the described device that is used to present pattern be connected in the first metal layer (5) upper surface, figuratum second sheet metal of imprinting (7) on it.

4. CD according to claim 1, it is characterized in that the described device that is used to present pattern be connected in the first metal layer (5) upper surface, the figuratum film of printing on it.

5. CD according to claim 1 is characterized in that: the described device that is used to present pattern be have adequate thickness, the figuratum the first metal layer of its upper surface imprinting (5).

6. CD according to claim 1 is characterized in that the described device that is used to present pattern comprises:

Be connected in second substrate (6) of the first metal layer (5) and first substrate (4);

Be connected in second substrate (6), figuratum second sheet metal of imprinting (7) on it.

7. CD according to claim 6 is characterized in that:

Have a groove on second substrate (6) lower surface, the first metal layer (5) and first substrate (4) are connected in the groove.

8. CD according to claim 6 is characterized in that:

Second substrate (6) has a through hole that runs through its upper and lower surface, and the first metal layer (5) and first substrate (4) are connected in the through hole; And

Second sheet metal (7) is also connected to the upper surface of the first metal layer (5) that exposes from through hole.

9. CD according to claim 1 is characterized in that the outward flange of first substrate (4) constitutes a circle.

10. CD according to claim 1 is characterized in that the outward flange of first substrate (4) constitutes a rectangle.

11. CD according to claim 1 is characterized in that the outward flange of first substrate (4) constitutes an irregular figure.

12., it is characterized in that the distance between the center of circle of any point on first substrate (4) outward flange and center pit (1) is less than or equal to 60 millimeters according to each described CD in the claim 9 to 11.

13. CD according to claim 12, it is characterized in that described CD with lower surface that the player pallet contacts on, about 40 millimeters places have stationary installation (8) in the center of circle of distance center hole (1).

14. CD according to claim 13 is characterized in that stationary installation is at least two projectioies.

15. CD according to claim 14 is characterized in that described at least two projectioies form with first substrate (4) with injection molding technology.

16. CD according to claim 13 is characterized in that stationary installation is at least two glue limits that bond on first substrate (4).

17. CD according to claim 13, it is characterized in that stationary installation be one with the concentric ring of center pit (1).

18. CD according to claim 6 is characterized in that the outward flange of second substrate (6) constitutes a circle.

19. CD according to claim 6 is characterized in that the outward flange of second substrate (6) constitutes a rectangle.

20. CD according to claim 6 is characterized in that the outward flange of second substrate (6) constitutes an irregular figure.

21., it is characterized in that the distance between the center of circle of any point on second substrate (6) outward flange and center pit (1) is less than or equal to 60 millimeters according to each described CD in the claim 18 to 20.

22. CD according to claim 21, it is characterized in that described CD with lower surface that the player pallet contacts on, about 40 millimeters places have stationary installation (8) in the center of circle of distance center hole (1).

23. CD according to claim 22 is characterized in that stationary installation is at least two projectioies.

24. CD according to claim 23 is characterized in that described at least two projectioies form with second substrate (6) with injection molding technology.

25. CD according to claim 22 is characterized in that stationary installation is at least two glue limits that bond on second substrate (6).

26. CD according to claim 22, it is characterized in that stationary installation be one with the concentric ring of center pit (1).

27. according to each described CD in the claim 1 to 8, the overall diameter that it is characterized in that data recorded area (3) is in 48 millimeters to 120 millimeters scope.

28. according to each described CD in the claim 1 to 8, the material that it is characterized in that described the first metal layer (5) is any in gold, silver, the platinum.

29. according to each described CD in the claim 3,6,7,8, the material that it is characterized in that described second sheet metal (7) is any in gold, silver, the platinum.