CN1263341A

CN1263341A - Production method of data optical disk with full figure pattern

Info

Publication number: CN1263341A
Application number: CN99102357A
Authority: CN
Inventors: 刘瑞哲; 赖键模
Original assignee: Enji Science & Technology Co Ltd
Current assignee: Enji Science & Technology Co Ltd
Priority date: 1999-02-12
Filing date: 1999-02-12
Publication date: 2000-08-16

Abstract

The production method of data optic disk with full figure pattern is mainly characterized by that the data information and full figure pattern are formed on same surface of optic disk, and includes the following steps: firstly, calculating data information size and required area on the optic disk, arranging full figure pattern on residual area of optic disk, etching, developing measure-plating and electric plating to make mother plate, injection-moulding and imprinting to obtain the invented data optic disk with full figure pattern.

Description

The manufacture method of data optical disk with full figure pattern

The present invention relates to a kind of manufacture method of data optical disk with full figure pattern.

CD (CD) is a current utilization data storage medium the most widely, be compared to conventional disk have capacity greatly, remarkable advantage such as not fragile, no matter current is software industry or mass media industry (as music, audiobook etc.), all generally adopt the recording medium of CD as its marketing information, and be identification or beautifying and decorating purpose, general CD is many additional figures that have on the surface of non-record information region, perhaps to do art designing's design of decorative purpose in the store information of introducing this CD.And be formed on figure on the CD is to belong to a kind of " passive type full figure ", and so-called " full figure " is meant the full detail of noting image on photosensitive medium (or medium), and this information has comprised data such as the brightness of image and image source, distance.This specific character makes its figure and picture have the stereoeffect of 3D.When then referring to watch image, the medium of recording image can be not luminous as for " passive type full figure ", but by external light source irradiation, obtain image for range estimation.Particularly, the passive type full figure be with figure comprehensive be covered in optical disc surface, it can't be by the reflective generation figure of optical disc surface, and only can observe pattern by external light source, it promptly is common in the figure of general optical disc surface, owing to the surface of this kind figure with CD is covered with, can't supply store digital information, therefore, with current all CDs on the market full figure figure and data message are coexisted on it, this causes restriction to additional patterns on the CD undoubtedly.

Fundamental purpose of the present invention provides a kind of data message and figure can being formed on the same one side of CD simultaneously, and has the manufacture method of beautifying and stopping the data optical disk with full figure pattern of counterfeit effect concurrently.

The object of the present invention is achieved like this, a kind of manufacture method of data optical disk with full figure pattern, be characterized in, it comprises the following steps: that a) size of computational data information and full figure figure reaches shared area on CD respectively, b) on CD, record scribing of write data information and full figure figure respectively, c) form the sputter of thin metal layer at optical disc surface, d) CD is thickened the plating that processing is duplicated mother matrix with generation, e) utilize aforementioned mother matrix duplicating with injection moulding or a large amount of productions of impression mode and the entrained identical information CD of mother matrix.

The manufacture method of described data optical disk with full figure pattern, calculating in the step a) is before scribing data message and full figure figure, calculate the size of data message and the area that on CD, takies earlier, it is believed that with divisor on the CD other outer areal distribution of breath area occupied form the full figure figure again.

The manufacture method of described data optical disk with full figure pattern, scribing in the step b) is to clean clean glass baseplate surface in one to be coated with photoresist and to form the photoresistance film, thereafter carry out the superimposed processing procedure of figure, the superimposed processing procedure of this figure mainly is to carry out respectively with the laser beam that two groups of instruments generate that the data message record is write and the record of full figure figure is write.

The manufacture method of described data optical disk with full figure pattern, described scribing is to be benchmark with the condition of scribing data message, and estimation in advance scribes the development time of the data message institute palpus of finishing, and with the development time of the data message development time as the full figure figure.

The manufacture method of described data optical disk with full figure pattern, described scribing in specific development time, generating best full figure effect, can test in advance, it mainly is the time shutter that changes each interference point, and the figure that makes different exposure time is beaten successively to the same sheet glass substrate that is coated with photoresistance, after the specific time develops, can tell the figure of optimum efficiency, adopt the time shutter of this figure immediately, full figure figure and data message are engraved on the same glass substrate.

The manufacture method of described data optical disk with full figure pattern, described full figure figure is to be made of the dot matrix hologram, this dot matrix hologram is made of a plurality of interference point groups.

The present invention compared with the prior art advantage and good effect is very obvious.By above technical scheme as can be known, constitute the dot matrix holograms, and further constitute the full figure figure it can be coexisted as on the CD with data message because of the present invention utilizes a plurality of interference points, therefore, except that possessing the attractive, decorative effect, more can be used as the genuine piece identification marking, prevent that optical media replication is counterfeit.

Further specify specific structural features of the present invention and purpose below in conjunction with accompanying drawing.

Fig. 1 is the synoptic diagram that determines an interference point parameter in order to expression;

Fig. 2 is a process flow diagram of the present invention;

Fig. 3 is a processing procedure synoptic diagram of the present invention.

The manufacture method of data optical disk with full figure pattern of the present invention mainly is to utilize the dot matrix hologram as figure, itself and data message are added jointly to be stored on the CD, the know-why of relevant dot matrix hologram (dot matrixhologram) outlines as follows:

So-called full figure information is seen it by its medium profile, is actually one group of interference fringe (being equivalent to irregular grating).And the mode that generates interference fringe is a lot, and the mode of herein taking is to utilize each interference point that generates, and a group point is pieced together " the dot matrix hologram " of forming required figure.

The similar computer image figure of this dot matrix hologram shelves, constitute figure with latticed form, wherein each point promptly is an interference fringe, each interference fringe can be determined its characteristic by following parameter, see also shown in Figure 1, distance between the S=grating, the d=grating degree of depth, θ=grating angle, and the area of an interference point.Through changing these parameters, just can obtain the interference point of various different-effects, further can the assembly group constitute possess circle round, gradually layer, scheme the figure of multiple different-effects such as superimposed and the depth of field more.

Through the above-mentioned technology contents of understanding the dot matrix hologram, the present invention then utilizes dot matrix figure that hologram constitutes and data message to coexist as on the CD, and its concrete manufacture method specifically comprises the following steps: as shown in Figure 2

The size of computational data information and full figure figure reaches shared area on CD respectively;

On CD, record scribing of write data information and full figure figure respectively;

Form the sputter of thin metal layer at optical disc surface;

CD is thickened mother matrix is duplicated in processing with generation plating (ELECTROFORMING);

Utilize aforementioned mother matrix duplicating with injection moulding or a large amount of productions of impression mode and the entrained identical information CD of mother matrix; Wherein:

In above-mentioned " computational data information is shared area on CD " step, be before scribing data message and full figure figure, calculate the size of data message and the area that on CD, takies earlier, it is believed that with divisor on the CD other outer areal distribution of breath area occupied form the full figure figure again, in other words, i.e. record with data message is written as the master, and the additional of full figure figure is auxilliary.

Except that calculating area occupied, another project that must estimate is the time of scribing, because data message is to be generated by different instruments with the full figure figure, when forming data message and full figure figure, be preferentially to scribe with the few step of required time, i.e. data message record is write the time after a little while, promptly scribe data message earlier, otherwise, write the time more in short-term in the record of full figure figure, then preferentially scribe the full figure figure.

Above-mentioned again full figure figure scribe step, see also shown in Figure 3, mainly be to form photoresistance film 11 at the clean glass substrate 10 surface coated photoresists of a cleaning, carry out the superimposed processing procedure of figure subsequently, mainly be to carry out respectively with the laser beam that two groups of instruments generate that the data message record is write and the record of full figure figure is write, and the part through laser beam irradiation will generate chemical change on the glass substrate 10, after the process chemicals develops, to partly form the hole, hole at chemical change, generate 0 and 1 data-signal in the future when reading by CD player.

Above-mentioned scribing in the step mainly is to be benchmark with the condition of scribing data message, and estimation in advance scribes the development time of the data message institute palpus of finishing, and this data message development time also is the development time of hologram shape.

For in specific development time, generating best full figure effect, can test in advance:

Mainly be to change each interference point to accept light-struck time of laser (being the time shutter), comply with the different time shutter and on the diverse location on the same sheet glass substrate of coating photoresistance, stamp figure successively.After specific time development, can tell the figure of optimum efficiency, the time shutter of adopting this figure immediately, full figure figure and data message are engraved on the same glass substrate.

The above person promptly comprises and scribing and two steps of developing, after finishing abovementioned steps, promptly carry out sputter successively, electroplate, step such as injection moulding or impression, still see also shown in Figure 3, promptly carry out the sputter step through the glass substrate 10 after the development step, mainly be one deck thin metal layer 12 on glass substrate 10 surfaces, again after plating step to improve the thickness of thin metal layer 12, constitute a mother matrix (MASTER) immediately, and utilize this mother matrix can by injection moulding or impression mode (shown in Fig. 2 right side first, two road steps) produce CD in a large number with the entrained identical information of mother matrix.

The last optical disc surface of again injection moulding or impression being finished plates a reflection horizon 13 with sputtering way and is coated with protection glue and constitutes diaphragm 14 in the spin coating mode.

Claims

1. the manufacture method of a data optical disk with full figure pattern, it is characterized in that: it comprises the following steps:

A) size of computational data information and full figure figure reaches shared area on CD respectively,

B) on CD, record scribing of write data information and full figure figure respectively,

C) form the sputter of thin metal layer at optical disc surface,

D) CD is thickened the plating that processing is duplicated mother matrix with generation,

E) utilize aforementioned mother matrix to produce with the entrained identical information CD of mother matrix so that injection moulding or impression mode are a large amount of

Duplicate.

2. the manufacture method of data optical disk with full figure pattern according to claim 1 is characterized in that:

Described step a), calculating are before scribing data message and full figure figure, calculate the size of data message and the area that takies on CD earlier, it is believed that with divisor on the CD other outer areal distribution of breath area occupied form the full figure figure again.

3. the manufacture method of data optical disk with full figure pattern according to claim 1 is characterized in that:

Described step b), scribing is to clean clean glass baseplate surface in one to be coated with photoresist and to form the photoresistance film, carries out the superimposed processing procedure of figure thereafter,

The superimposed processing procedure of this figure mainly is to carry out respectively with the laser beam that two groups of instruments generate that the data message record is write and the record of full figure figure is write.

4. according to the manufacture method of claim 1 or 3 described data optical disk with full figure pattern, it is characterized in that:

Described scribing is to be benchmark with the condition of scribing data message, and estimation in advance scribes the development time of the data message institute palpus of finishing, and with the development time of the data message development time as the full figure figure.

5. according to the manufacture method of claim 1 or 3 described data optical disk with full figure pattern, it is characterized in that:

Described scribing in specific development time, generating best full figure effect, can test in advance, it mainly is the time shutter that changes each interference point, and the figure that makes different exposure time is beaten successively to the same sheet glass substrate that is coated with photoresistance, after the specific time develops, can tell the figure of optimum efficiency, adopt the time shutter of this figure immediately, full figure figure and data message are engraved on the same glass substrate.

6. according to the manufacture method of claim 1,2 or 3 described data optical disk with full figure pattern, it is characterized in that:

Described full figure figure is to be made of the dot matrix hologram, and this dot matrix hologram is made of a plurality of interference point groups.