CN101548325B - Method for generating pattern with pseudo-stain and optical test disk - Google Patents
Method for generating pattern with pseudo-stain and optical test disk Download PDFInfo
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- CN101548325B CN101548325B CN2007800425141A CN200780042514A CN101548325B CN 101548325 B CN101548325 B CN 101548325B CN 2007800425141 A CN2007800425141 A CN 2007800425141A CN 200780042514 A CN200780042514 A CN 200780042514A CN 101548325 B CN101548325 B CN 101548325B
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- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
Abstract
The present invention discloses a technique for generating a pseudo modification state pattern wherein a printing dot is reliably present in a BD spot with a stable total area ratio, and the transmissivity can be adjusted. A distribution pattern for printing is generated by processors (102a, 102b, 102c). The processor (102a) uses a computer (100) to draw a predetermined number of dot images in an area having a preset size assumed on a disk. The processor (102b) searches an area where no dot images are distributed. The processor (102c) adds and draws the dot images in the detected area where no dot images are distributed. This distribution pattern (200) is used for forming a printing master of a printing machine (140), and a pseudo fingerprint pattern (20a), which is a type of the pseudo modification state pattern, is printed on the surface area (11) of a disk (10), thereby forming the disk (10) for testing.
Description
Technical field
The present invention relates to generate for technology reproduction performance, virtual change status pattern (pattern) state, that be used to check transcriber of change in the optical property of the surface portion generation of CD.
Background technology
Optical disc reproducing apparatus is to the CD illumination beam, thus the reproduction of reading the information of carrying out from the catoptrical signal of this dish.But, can adhere to dirts such as fingerprint sometimes on the record surface of CD.Suppose this situation, need investigate reading of optical disc reproducing apparatus in advance and where can proceed to.Therefore, the inspection that fingerprint etc. has been reproduced in the optical disc reproducing apparatus utilization is with dish, thereby carries out the inspection of reproduction based on checking from this with the signal of dish.
Inspection in patent documentation 1 below the record is with coiling, promptly in compact disk (compact disc), the inspection of having reproduced actual fingerprint with cancellate point (dot) pattern (spot diameter is 75 μ m, and the spacing of radial direction is 250 μ m, and the spacing of circumferencial direction is 125 μ m) is with coiling.
In addition, in patent documentation 2, put down in writing following optical storage inspection with dish, promptly on the record surface of CD, thereby formed optical storage inspection that light shielding part and non-light shielding part formed virtual fingerprint pattern with dish.
In addition, the surface portion at the record surface of CD and reading face etc. adheres to the dirt that liquid such as blood, saliva cause sometimes.Under the situation of dirt that liquid such as blood, saliva cause, attached to the thickness of the liquid of surface portion, concentration not necessarily, produce inhomogeneous attached to the record surface of CD.If produce inhomogeneously, then can be blocked fully from the reflected light of CD sometimes, perhaps obtaining reflected light (half transmitting) to a certain degree.
Dirts such as surface portion attaching liq for dish, thereby the reflected light from CD produces uneven situation, following technology is disclosed in patent documentation 3 and the patent documentation 4, promptly in compact disk, by on the reading face of CD, printing translucent pattern (semi-transparent zone), thus the reproduction of carrying out on the reading face of CD, having adhered to the state of dirts such as liquid.Translucent pattern forms by the translucent ink of printing on reading face.Catoptrical uneven reproduction is by adjusting the transmissivity of translucent ink, promptly being undertaken by the concentration of adjusting translucent ink.
Patent documentation 1:(Japan) spy opens flat 11-312341 communique
Patent documentation 2:(Japan) spy opens flat 10-241208 communique
Patent documentation 3:(Japan) No. 2892041 communiques of patent
Patent documentation 4:(Japan) spy opens the 2004-13952 communique
But, on the other hand, in recent years, the high capacity of optical disk medium in vogue, Blu-ray disc (Blu-ray Disc (registered trademark) is hereinafter referred to as BD) also is one of large-capacity storage media.Consider from now on and can popularize huge capacity compact discs that in BD, the inspection of having reproduced the dirt of actual fingerprint or liquid such as blood, saliva also becomes important with the exploitation of coiling.
The virtual fingerprint pattern that uses in compact disk also can be suitable for DVD (Digital Versatile Disc, below, abbreviate DVD as).Under the situation of DVD, even which position the spot of DVD (spot) moves in the printing points of cancellate pattern, the some printing total area ratio shared with respect to the area of spot diameter stablized.Therefore, can be by cancellate pattern reproduction actual fingerprint.
In addition, the translucent pattern of using in compact disk also can be tackled DVD.In DVD, be suitable under the situation of translucent pattern, also can adjust the transmissivity of translucent pattern by the concentration of regulating translucent ink.Therefore, by the translucent pattern that forms by translucent ink, can reproduce the dirt of liquid such as blood, saliva.
Summary of the invention
Invent problem to be solved
But under the situation of BD, (for example, situation DVD) is compared, and spot diameter is very little, is about 1/4th with in the past storage medium.Therefore, if form virtual fingerprint pattern, directly utilize the printed patterns of DVD, then because the position of laser spot (laser spot), and have the part of the influence be not subjected to printing points fully and the excessive part of influence of printing points, thereby be the actual fingerprint that to reproduce well among the BD by the printed images of DVD.
Therefore, at first,, printing points diameter and grid are dwindled at interval corresponding to the little situation of the spot diameter of BD.At this moment, suppose to expect to have a plurality of printing points in the spot diameter of BD, then the printing points diameter becomes the size about 16 μ m.But, owing to be cancellate configuration, be on the grid according to the center of spot and still be between the grid, the printing that comprises in the spot diameter is counted different.Therefore, the total area of the printing points that comprises in spot diameter is with respect to the ratio of spot area, and promptly total area ratio is different.Its result is when spot relatively moves on card, according to the shift position and total area ratio has bigger variation, therefore from the level variation of the reflected light of CD or the RF that is obtained by reflected light (Radio Frequency) signal.
In order to address these problems, need the stable ratio of estimating the total area of the printing points in the spot of BD.Need generate new virtual fingerprint pattern with dish in the inspection that BD uses.
More than be the research for fingerprint, but for beyond the fingerprint, for example the state of the change optical property that produces at the surface portion of CD such as the spittle such as blood, saliva vestige also is the same problem that produces.
On the other hand, the dirt of liquid such as research blood, saliva is attached to the state of the surface portion of CD.In order to form translucent pattern for the dirt of liquid such as blood, saliva, will be in the past compact disk and DVD be being checked that employed translucent ink also was used under the situation of BD under the situation that dirt adheres to, even the concentration of change ink and the color of ink are (for example, black, red etc.), can not obtain the RF signal that obtains from reflected light fully.That is, in the employed wavelength region may, employed in the past translucent ink can not see through in BD, can not reproduce the situation of having adhered to liquid dirts such as blood, saliva.
Therefore, for the surface portion that is reproduced in CD has adhered to the state of dirts such as blood, saliva, need to generate and to carry out the translucent pattern that transmissivity is adjusted with the new method beyond the concentration of adjusting translucent ink or the color of adjusting ink.
Above problem is not limited among the BD, also is the problem that produces under the situation of the same small spot of utilization and BD spot.
The object of the present invention is to provide a kind of technology, be created on the same hot spot of BD spot in have printing points, and the ratio of its total area is stable, can carry out the virtual change status pattern that transmissivity is adjusted.
Be used to solve the method for problem
In the present invention, the inspection of using in the optical disc reproducing apparatus that reads that the CD projecting beam is write down dish is characterized in that,
Have the part of the pattern that is provided with the state that is used to simulate the optical property that changes CD at surface portion,
Described pattern is to distribute a plurality of some groups and form,
Described some group is,
With the state of installing at described optical disc reproducing apparatus, to the position arbitrarily of the part that is provided with described pattern, when shining described light beam, a plurality of points of the part of described some group are located at the distribution patterns of the inside of the hot spot that described surface portion forms.
The invention effect
According to the present invention, can be formed in the hot spot of BD spot etc. and have printing points, and the stable distribution patterns of its total area ratio.Can generate the inspection dish that has generated virtual change status pattern based on this distribution patterns.The printing that generates becomes the state that has printed virtual change status pattern with the surface portion of dish like this.
In addition, the shape in the density by changing this printing points, the zone of printing points can be adjusted the transmissivity of distribution patterns.Thus, can also reproduce with the state of various transmissivities attached to the situation on the CD or attached to the dirt of liquid such as the blood in various zones, saliva.
Description of drawings
Fig. 1 is the planimetric map of the inspection of expression first embodiment of the present invention with an embodiment of dish.
Fig. 2 is the block scheme of optical disc reproducing apparatus.
Fig. 3 is the distribution patterns of first embodiment of the present invention.
Fig. 4 is an example of dot image pattern generation system.
Fig. 5 is used to illustrate the figure that concerns between the BD spot diameter of one embodiment of the present invention and the printing points.
Fig. 6 is used to illustrate the figure that concerns between the BD spot diameter of one embodiment of the present invention and the printing points.
Fig. 7 is the RF signal waveforms under the situation of having adhered to actual fingerprint on the BD.
Fig. 8 is the RF signal waveforms under the situation of having printed virtual fingerprint pattern on the BD.
Fig. 9 is the RF signal waveforms under the situation of having printed DVD usefulness grid printed dot-pattern on the BD.
Figure 10 is the distribution patterns of second embodiment of the present invention.
Figure 11 is the distribution patterns of second embodiment of the present invention.
Figure 12 is the distribution patterns of second embodiment of the present invention.
Figure 13 is the distribution patterns of second embodiment of the present invention.
Figure 14 is the distribution patterns of second embodiment of the present invention.
Figure 15 is the distribution patterns of second embodiment of the present invention.
Figure 16 is the planimetric map of the inspection of expression second embodiment of the present invention with an embodiment of dish.
Figure 17 is the RF signal waveforms under the situation of having adhered to actual saliva on the BD.
Figure 18 is the RF signal waveforms under the situation of having printed transmissivity adjustment pattern on the BD.
Label declaration
10... check with dish, 20a, 20b... virtual fingerprint pattern, 200,400,500,600,700,800,900... distribution patterns, 100... basic computer, 101...CPU, 102a... dot image is drawn processing unit, 102b... vacant retrieval processing unit, 102c... appending, dot image draws processing unit, 102d... output processing unit, 110... input media, 120... display device, 130... print former dish manufacturing installation, 140... printing machine, 210... printing points, 300...DVD use printing points, 40a, 40b... transmissivity is adjusted pattern
Embodiment
Below, with reference to description of drawings first embodiment of the present invention.In addition, in the first following embodiment,, be that example describes with virtual fingerprint pattern at surface portion simulation fingerprint as the pattern (virtual change status pattern) of the state that is used to simulate the optical property that changes CD.
Fig. 1 is the planimetric map of the inspection of expression first embodiment of the present invention with an embodiment of dish.Inspection shown in Figure 1 is that transparency carrier, reflection horizon, recording layer, diaphragm etc. are multilayer laminated and form with dish 10.This inspection has center pit 12 with dish 10 at core.
Checking that the surface portion 11 with dish 10 passes through the virtual fingerprint pattern 20a of press printing.Extend to circumferencial direction on the long limit of this virtual fingerprint pattern 20a.But, also can be printed as long side direction to the elongated state of radial direction.Virtual fingerprint pattern 20b shown in Figure 1 is exactly an example wherein.In Fig. 1, two kinds of virtual fingerprint image 20a, 20b and deposit in same dish, but also can be any one.
This inspection is used with the reproduction position of the regulation of coiling the optical disc reproducing apparatus that is installed in Fig. 2.
Fig. 2 is the block scheme of optical disc reproducing apparatus.Optical disc reproducing apparatus comprises: optical pickup apparatus (pick up) 30, spindle drive motor (spindle motor) 31, laser diode (LD) driving circuit 32, driver control circuit and spherical aberration circuit 33 and being used to detects the signal processing circuit 34 from the signal of the CD of installing.Signal processing circuit 34 output RF signal and servo error signals.The common fixing disc of this optical disc reproducing apparatus, thus reproduce.When dispatching from the factory, installation check is used and is coiled 10, thereby carries out the test for the reading performance of adhering to fingerprint.
Come the reflected light of self-check, received by light picker 30 with dish 10.Light picker 30 carries out light-to-current inversion with the reflected light that receives, and output is as the RF signal of electric signal.Come the RF signal of self-check by affirmation, thereby check the influence of fingerprint reproducing signal with dish 10.
By the printing of printing machine 140 (with reference to Fig. 4), virtual fingerprint pattern 20a is printed on the surface portion 11 of the inspection of Fig. 1 with dish 10.On printing machine 140, be provided with the former dish of printing with the distribution patterns 200 that is used to form virtual fingerprint pattern 20a.Fig. 3 represents the one example.Shown in Figure 3, corresponding with virtual fingerprint pattern 20a distribution patterns 200 is made by following step.
The dot image that preestablishes number is drawn, after this in the zone that preestablishes width of imagination on checking with dish 10, retrieval does not have the part of distributed points image, further, and by drawing dot image, make in the BD spot to have printing points, thereby generate distribution patterns shown in Figure 3 200.
Fig. 4 represents to be used for an example of the dot image pattern generation system of present embodiment.This system comprises basic computer 100, input media 110 and display device 120.This basic computer 100 for example is connected with the former dish manufacturing installation 130 of printing via network.
Basic computer 100 shown in Figure 4 comprises central processing unit (CPU) 101 and memory storage 102.The performed program of storage CPU101 in memory storage 102.At Fig. 4, wherein, expression is the concrete functions of components that CPU101 together constructs as software and the hardware relevant with present embodiment.As this function, carry out following processing, promptly the processing (dot image is drawn processing unit 102a) of the dot image that preestablishes number is drawn in the zone that preestablishes width of imagination on dish; The retrieval dot image does not have the processing (vacant retrieval processing unit 102b) of the part of distribution; In the part that does not have the distributed points image that retrieves, append the processing (dot image is appended and drawn processing unit 102c) of drawing dot image, and export (output processing unit 102d) with distribution patterns 200 as printing.
The data of the distribution patterns 200 that generates send to the former dish manufacturing installation 130 of printing of the former dish of printing that is used to make printing machine 140 via network.Print former dish manufacturing installation 130 at this,, make the former dish of printing based on the distribution patterns 200 that sends.The former dish of making of printing is installed in printing machine 140, and is used for the printing for optical disc surface.
As shown in Figure 1, by printing machine 140,, utilize the former dish of described printing to print virtual fingerprint pattern in a part of checking with the surface portion 11 of dish 10.This pattern that is printed is virtual fingerprint pattern 20a.
Then, for the formation of dot image, lift concrete example and illustrate.In following example,,, the example of drawing that carries out zone and dot image pattern is described as the pixel on the bitmap (bitmap) in order to offer some clarification on.Certainly, the present invention is not limited to this.
At first, draw processing unit 102a, for example,, set the scope of perpendicular 3mm * horizontal 10mm as the zone that preestablishes width of imagination on dish at point.Then, in the scope of setting, draw 720 dot image randomly.Wherein, in 100 μ m around the dot image, there is not other dot image.Therefore, dot image is drawn processing unit 102a and is comprised and be used for the function of assigned address at random.Specifically, by come the pixel address of specified bitmap to tackle according to random number.
Then, at vacant retrieval processing unit 102b, retrieve the vacant part that around 100 μ m, does not have the distributed points image randomly.As result for retrieval, exist under the situation of vacant part, append by dot image and draw processing unit 102c, in its vacant part, append and draw dot image.For example, draw 1000 approximately.
And, by vacant retrieval processing unit 102b, carry out vacant retrieval.Specifically, in the scope complete inspection of erecting 3mm * horizontal 10mm.Do not have to append and draw dot image under the situation of part of dot image detecting in 100 μ four directions.
In described example, the situation of utilizing the dot chart picture as dot image has been described.But employed in the present invention dot image pattern is not limited thereto.For example, dot image can be made as ellipse, rectangle, other non-circular figure.
Wherein, in above-mentioned example, all represent the example of dot chart picture, but the following describes the situation of utilizing elliptical point image and dot chart picture.
At first, draw processing unit 102a, for example,, set the scope of perpendicular 3mm * horizontal 10mm as the zone that preestablishes width of imagination on dish in dot image.Then, in the scope of setting, draw 720 elliptical point images randomly.Wherein, make at the four directions of a dot image 100 μ m with the interior dot image that does not have other.Therefore, dot image is drawn processing unit 102a and is had the function of assigned address randomly.Specifically, according to random number, the pixel address of specified bitmap and tackling.
In addition, ellipse is drawn and is 15 ° of per 60 rotations.Thereby, draw the ellipse of (12 kinds * 60=720) randomly.
Then, at vacant retrieval processing unit 102b, retrieve the vacant part that does not have the distributed points image in 100 μ four directions randomly.As result for retrieval, exist under the situation of vacant part, append by dot image and draw processing unit 102c, in its vacant part, append and draw the dot chart picture.For example, draw 1000 approximately.
And, by vacant retrieval processing unit 102b, carry out vacant retrieval.Specifically, in the scope complete inspection of erecting 3mm * horizontal 10mm.Do not have to append and draw the dot chart picture under the situation of part of dot chart picture detecting in 100 μ four directions.
In the distribution patterns 200 made from such step, be applied in the part of some printing and do not had the ratio of area of the part of application point printing to be about 10%.
Fig. 5 represents the spot diameter (φ=128.8 μ m) of BD and the relation of printing points (φ=25 μ m).Printing points be the printing points 210a, the 210b that constitute virtual fingerprint pattern 20a ..., 210n distributes as random state virtually.In distribution patterns 200 as shown in figure 3, which position BD spot SP is positioned at, and the printing points quantity of estimating in spot diameter does not have big variation.Its result, the ratio of the total area of the printing points that comprises in spot diameter is that the location independent ground of total area ratio and spot diameter becomes same degree.
Here, Fig. 6 with described printing points 210a shown in Figure 5,210b ..., the distribution example of 210n and with DVD with grid printed dot-pattern 300a, 300b ..., the grid of 300n and point merges the overlapping expression of dwindling of distribution example at interval.Compare both, the printing points diameter of clathrate pattern (φ=16.25 μ m) diminishes.Therefore, when spot diameter relatively moves, according to the position of the radial direction of its center, the number change of the printing points of in spot diameter, estimating.Therefore, the beguine of the total area of printing points changes according to the center of spot diameter, can not stably carry out the fingerprint detection test.With respect to this, under the situation of present embodiment, as mentioned above, with dot image virtually stochastic distribution for there not being vacant part, therefore with the center of spot diameter irrespectively, it is certain can keeping total area ratio, thereby, can carry out stable fingerprint detection test.
Fig. 7 and Fig. 8 represent the RF signal waveform of obtaining according to the reflected light that reads from the CD that has adhered to actual fingerprint by transcriber, the RF signal waveform of obtaining according to the reflected light that reads with dish from the inspection of having printed virtual fingerprint pattern 20a by transcriber too respectively.In addition, for relatively, Fig. 9 is illustrated in the RF signal waveform under the situation of the printed patterns that has printed DVD on the BD.
Comparative result, the RF signal waveform of virtual fingerprint pattern for distribution printing points 20a shown in Figure 8, very similar to the RF signal waveform of actual fingerprint shown in Figure 7.Thus, we can say that this virtual fingerprint pattern 20a can reproduce actual fingerprint.But the RF signal waveform under the situation of the printed patterns that BD has been printed DVD shown in Figure 9 and the RF signal waveform of actual fingerprint are different.
So far, illustrated and be used to be reproduced in virtual fingerprint pattern state, that utilized random point that has adhered to actual fingerprint on the CD.Then, illustrate the 2nd embodiment of the present invention, be used to be reproduced in the transmissivity of state that CD adhered to the dirt of liquid such as blood, saliva and adjust pattern.
Identical during with virtual fingerprint pattern, the transmissivity of utilizing random dot pattern to generate in the 2nd embodiment is adjusted pattern.In the present embodiment,, thereby adjust the inhomogeneous of the catoptrical transmissivity that causes owing to the dirt that adheres to liquid such as blood, saliva according in the printing diameter of density that changes random point and random point one or two.By utilizing random dot pattern, the part of point (part of adhering to ink) shading light.On the other hand, and the part (part of not adhering to ink) between the point see through light.Thereby pass through the density of the point of change unit area, the adjusting of the light that can see through.
Figure 16 is that the planimetric map of the inspection of transmissivity adjustment pattern with an embodiment of dish printed in expression.At the surface portion 11 of the inspection shown in Figure 16 (a), adjust pattern 40a by the press printing transmissivity with dish 10.The transmissivity of Figure 16 (a) is adjusted the length of pattern 40a along circumferencial direction.This transmissivity adjust pattern 40a also can with the situation of Fig. 1 in the same manner, the direction that is printed as long limit is to the elongated state of radial direction.It is the one example that transmissivity shown in Figure 16 (a) is adjusted pattern 40b.In addition, in Figure 16 (a), two kinds of transmissivities are adjusted pattern 40a, 40b and are deposited in same dish, but also can be wherein any one.
Adjust pattern 40a and virtual fingerprint pattern similarly in the inspection of Figure 16 (a) with the transmissivity of surface portion 11 printings of dish 10, the printing by printing machine 140 (Fig. 4) is printed.Be provided with in the printing machine 140 and have the former dish of printing that the transmissivity of being used to form is adjusted the distribution patterns 400 of pattern 40a.Figure 10 represents the one example.
The generation step of the distribution patterns 400 of transmissivity adjustment pattern 40a correspondence shown in Figure 10 then, is described.
With virtual fingerprint pattern in the same manner, the zone that preestablishes width of imagination on checking with dish 10, draw the dot image that preestablishes number, after this, retrieval does not have the part of distributed points image, and then, by drawing dot image, thereby make and in the BD spot, exist printing points to generate distribution patterns shown in Figure 10 400.
At first, draw processing unit 102a, for example,, set the scope of perpendicular 3mm * horizontal 10mm as the zone that preestablishes width of imagination on dish at point.Then, in the scope of setting, draw 8000 dot image randomly.Wherein, make at the four directions of a dot image 50 μ m with the interior dot image that does not have other.Therefore, dot image is drawn processing unit 102a and is had the function of assigned address at random.Specifically, according to random number, the pixel address of specified bitmap and tackling.
Then, in vacant retrieval processing unit 102b, retrieve the vacant part that does not have the distributed points image in 50 μ m four directions randomly.As result for retrieval, when having vacant part, append by dot image and to draw processing unit 102c, in this vacant part, append and draw dot image.For example, draw 200～300.
Further, by vacant retrieval processing unit 102b, carry out vacant retrieval.Specifically, complete inspection in the scope of perpendicular 3mm * horizontal 10mm.When 50 μ m four directions detect the part that does not have dot image, append and draw several dot image.
In above-mentioned example, illustrated in transmissivity and adjusted the situation of utilizing the dot chart picture in the pattern as dot image.In addition, here, adjust the diameter of dot image of circle of the distribution patterns of pattern and be made as 20 μ m being used to form transmissivity.
In transmissivity is adjusted pattern, also with virtual fingerprint pattern in the same manner, employed dot image pattern is not limited thereto.For example, dot image can be made as ellipse, rectangle and other non-circular figure.
Here, in above-mentioned example, all represented the example of dot chart picture, then explanation utilizes the situation of elliptical point image and dot chart picture.
At first, draw among the processing unit 102a, for example,, set the scope of perpendicular 3mm * horizontal 10mm as the zone that preestablishes width of imagination on dish in dot image.Then, in the scope of setting, draw 7200 elliptical point images at random.Wherein, at the four directions of a dot image 50 μ m with the interior dot image that does not have other.Therefore, dot image is drawn processing unit 102a and is had the function of assigned address at random.Specifically, according to random number, the pixel address of specified bitmap and tackling.
In addition, ellipse is drawn and is 15 ° of per 600 rotations.Thereby the ellipse of (12 kinds * 600=7200) is drawn randomly.
Then, in vacant retrieval processing unit 102b, stochastic retrieval does not have the vacant part of distributed points image in 50 μ m four directions.As result for retrieval, exist under the situation of vacant part, append by dot image and draw processing unit 102c, in this vacant part, append and draw the dot chart picture.For example, draw 200～300.
Further, by vacant retrieval processing unit 102b, carry out vacant retrieval.Specifically, complete inspection in the scope of perpendicular 3mm * horizontal 10mm.Detect when not having the part of dot chart picture, append and draw several dot chart pictures in 50 μ m four directions.
In the distributed image of making by such step 400, applied the part of some printing and do not had the area ratio of the part of application point printing to be about 20%.
Attached on the CD, but can reproduce by the density of the point by changing the distribution patterns corresponding with the transmissivity adjustment pattern of present embodiment with state with various transmissivities for the dirt of liquid such as blood, saliva.In addition, the adhering zone of the dirt of liquid such as blood, saliva is also of all kinds.But, having the zone of the point of distribution patterns by change, can reproduce.Figure 11 to Figure 15 has represented to change the example of the distribution patterns under the situation in zone of the point with distribution patterns.
In distribution patterns shown in Figure 11 300, exist a plurality of regional 500a, 500b with circular and oval-shaped point ..., 500n.Distribution patterns shown in Figure 11 500 is by after making distribution patterns shown in Figure 10 with step described above, extract regional 500a, 500b with circular and oval-shaped point ..., 500n and making.It is of all kinds that extraction has the method in zone of circular and oval-shaped point, also can be as the distribution patterns 600 of Figure 12, the distribution patterns 700 of Figure 13, the zone that makes extraction has circular than Figure 11 a plurality of and oval-shaped regional 500a, 500b ..., 500n is also big.
Shown in Figure 16 (b), like that, make the transmissivity of distribution patterns 500,600,700 adjust pattern 50a, 60a, 70a and exist in the same dish, but also can print pattern arbitrarily with Figure 11～Figure 13.
In addition, the shape of extraction is not limited to circle and ellipse, as Figure 14, as shown in Figure 15, also can extract stepped shape, as stair-stepping distribution patterns 800,900.If it is such shown in Figure 16 (c), transmissivity adjustment pattern 80a, the 90a that will have the distribution patterns 800,900 of having extracted stair-stepping shape are printed on the CD with the state of long side direction along circumferencial direction, then change continuously, thus can carry out till which scope can normal reproduction affirmation.
Figure 17 and Figure 18 represent RF signal waveform of obtaining according to the reflected light that reads from the CD that has adhered to saliva by transcriber and the RF signal waveform of obtaining according to the reflected light that reads with dish from the inspection of having printed transmissivity adjustment pattern 40a by transcriber equally respectively.
Figure 17 is the RF signal waveform of having adhered to the CD of saliva from slight, moderate, three types of severe.From the part of having adhered to saliva with slight type, with the type of moderate adhered to saliva part, the waveform with the waveform of the waveform of the A scope of Figure 17, B scope, C scope is corresponding respectively to have adhered to RF signal that the part of saliva obtains with the type of severe.
On the other hand, as adjusting the inspection of pattern 40a with the waveform of the D scope of Figure 18 of the RF signal waveform of dish, very similar to the waveform of the A scope of Figure 17 from having printed transmissivity.
Thereby, we can say that this transmissivity adjustment pattern 40a can reproduce the state of the CD that has adhered to saliva.
Claims (14)
1. an inspection is with dish, is installed in optical disc reproducing apparatus and uses, it is characterized in that,
Have the part that is provided with pattern at surface portion, this pattern is used to simulate the state that changes the optical property of CD by the dirt that adheres to,
Described pattern is to distribute a plurality of some groups and form, and described some group comprises a plurality of points of random arrangement,
Described some group,
Be configured to, during to the position arbitrarily illumination beam of the part that is provided with described pattern, a plurality of points of the part of described some group are located at the inside of the hot spot of described surface portion formation under checking the state that is installed in described optical disc reproducing apparatus with dish, and
Forming total area ratio is certain distribution, and this total area ratio is the ratio of the total area of a plurality of points of comprising in spot inside with respect to the area of described spot.
2. inspection as claimed in claim 1 dish is characterized in that,
Described pattern is that the pattern that is used to simulate fingerprint is virtual fingerprint pattern.
3. inspection as claimed in claim 1 dish is characterized in that,
Described pattern is that the pattern that is used for the dirt of model fluid is that transmissivity is adjusted pattern.
4. inspection as claimed in claim 3 dish is characterized in that,
Come accommodation reflex optical transmission rate by the density of regulating the some group that constitutes described transmissivity adjustment pattern.
5. as each described inspection dish of claim 1 to 4, it is characterized in that becoming the CD of checking object is Blu-ray disc.
6. as each described inspection dish of claim 1 to 4, it is characterized in that,
The point group of described pattern forms by printing.
7. method for generating pattern, by computing machine be created on check with dish go up formation, be used for the pattern of change state that model soil adheres to the optical property of generation, described inspection is installed in optical disc reproducing apparatus with dish and uses and be used for inspection and reproduce performance, it is characterized in that
Carry out on the storer of described computing machine, be defined in the zone of imagining on the CD that preestablishes width, make the processing of drawing the dot image that preestablishes number in this zone,
Carry out the position based on the dot image of drawing on described storer, retrieval does not have the processing of the part of distributed points image,
The part that does not have the distributed points image of carrying out retrieving in described retrieval process is appended the processing of drawing dot image,
The described pattern that will be formed by described dot image is exported with pattern data as printing.
8. method for generating pattern as claimed in claim 7 is characterized in that,
Described pattern is that the pattern that is used to simulate fingerprint is virtual fingerprint pattern.
9. method for generating pattern as claimed in claim 8 is characterized in that,
Described virtual fingerprint pattern is to distribute a plurality of dot image groups and form,
Described dot image group is the distribution patterns of following setting:
When in described optical disc reproducing apparatus, having installed under the state of checking with dish, when the illumination beam of the position arbitrarily of the part that is provided with described virtual fingerprint pattern, a plurality of dot image of the part of described dot image group are located at the inside of described inspection with the hot spot of the surface portion formation of dish.
10. method for generating pattern as claimed in claim 7 is characterized in that,
Described pattern is that the pattern that is used for the dirt of model fluid is that transmissivity is adjusted pattern.
11. method for generating pattern as claimed in claim 10 is characterized in that,
It is to distribute a plurality of dot image groups and form that described transmissivity is adjusted pattern,
Described dot image group is the distribution patterns of following setting:
When in described optical disc reproducing apparatus, having installed under the state of checking with dish, when the illumination beam of the position arbitrarily of the part that is provided with described transmissivity adjustment pattern, a plurality of dot image of the part of described dot image group are located at the inside of described inspection with the hot spot of the surface portion formation of dish.
12. method for generating pattern as claimed in claim 11 is characterized in that,
Come accommodation reflex optical transmission rate by the density of regulating the dot image group that constitutes described transmissivity adjustment pattern.
13. each the described method for generating pattern as claim 7 to 12 is characterized in that,
Becoming the CD of checking object is Blu-ray disc.
14. pattern generation system, by computing machine be created on check with dish go up formation, be used for the pattern of change state that model soil adheres to the optical property of generation, described inspection is installed in optical disc reproducing apparatus with dish and uses and be used for inspection and reproduce performance, it is characterized in that, comprising:
Dot image is drawn parts, carries out on the storer of described computing machine, is defined in the zone of imagining on the CD that preestablishes width, makes the processing of drawing the dot image that preestablishes number in this zone;
Vacant retrieval process parts carry out the position based on the dot image of drawing on described storer, retrieval does not have the processing of the part of distributed points image;
Dot image is appended and is drawn parts, and the part that does not have the distributed points image of carrying out retrieving in described retrieval process is appended the processing of drawing dot image; And
Output processing unit carries out the described pattern that forms by described dot image, the processing of exporting with pattern data as printing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006317577 | 2006-11-24 | ||
| JP317577/2006 | 2006-11-24 | ||
| PCT/JP2007/070719 WO2008062628A1 (en) | 2006-11-24 | 2007-10-24 | Method for generating pattern with pseudo-stain and optical test disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101548325A CN101548325A (en) | 2009-09-30 |
| CN101548325B true CN101548325B (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800425141A Expired - Fee Related CN101548325B (en) | 2006-11-24 | 2007-10-24 | Method for generating pattern with pseudo-stain and optical test disk |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5427413B2 (en) |
| CN (1) | CN101548325B (en) |
| WO (1) | WO2008062628A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0778908B2 (en) * | 1986-06-16 | 1995-08-23 | 松下電器産業株式会社 | Optical disc test disc |
| JP2892041B2 (en) * | 1989-06-05 | 1999-05-17 | ソニー株式会社 | Evaluation optical disk and evaluation method of optical disk player |
| JP2567952Y2 (en) * | 1993-07-30 | 1998-04-08 | ティアック株式会社 | Inspection disk |
| JPH10241208A (en) * | 1997-03-03 | 1998-09-11 | Matsushita Electric Ind Co Ltd | Optical recording inspection disk |
| JP3301711B2 (en) * | 1997-03-03 | 2002-07-15 | 松下電器産業株式会社 | Optical recording inspection disk and manufacturing method thereof |
| JPH11242833A (en) * | 1998-02-25 | 1999-09-07 | Sony Corp | Production of rugged pattern |
| JPH11312341A (en) * | 1998-04-28 | 1999-11-09 | Teac Corp | Disk for inspection |
| JP2004013952A (en) * | 2002-06-04 | 2004-01-15 | Sony Corp | Test disk |
| JP2004171711A (en) * | 2002-11-22 | 2004-06-17 | Pioneer Electronic Corp | Contamination checking method, contamination checking medium and manufacturing method therefor |
| EP2040258B1 (en) * | 2006-07-10 | 2010-09-15 | Panasonic Corporation | Optical disc device |
-
2007
- 2007-10-24 WO PCT/JP2007/070719 patent/WO2008062628A1/en active Application Filing
- 2007-10-24 CN CN2007800425141A patent/CN101548325B/en not_active Expired - Fee Related
- 2007-10-24 JP JP2008545339A patent/JP5427413B2/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| JP特开2004-13952A 2004.01.15 |
| JP特开平11-242833A 1999.09.07 |
| JP特开平11-312341A 1999.11.09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5427413B2 (en) | 2014-02-26 |
| WO2008062628A1 (en) | 2008-05-29 |
| JPWO2008062628A1 (en) | 2010-03-04 |
| CN101548325A (en) | 2009-09-30 |
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