WO2010002032A1

WO2010002032A1 - Method for recording bar code mark on optical disk, and optical disk

Info

Publication number: WO2010002032A1
Application number: PCT/JP2009/062267
Authority: WO
Inventors: 洋信清水
Original assignee: 太陽誘電株式会社
Priority date: 2008-07-04
Filing date: 2009-06-30
Publication date: 2010-01-07
Also published as: JP2010015637A

Abstract

Provided is a bar code mark recording method for recording a bar code mark having a desired shape while preventing the shape of the bar code mark from being enlarged at the beginning thereof. The bar code mark recording method comprises irradiating an optical disk having a burst cutting area, while rotating the same, with a recording laser beam to thereby record, in the burst cutting area, the bar code mark extending radially of the optical disk. The method is characterized in that the irradiation energy of the recording laser beam at the time of starting recording the bar code mark is lower than that of the recording laser beam during the recording of the mark.

Description

Chair's Pacco Decoder

With regard to the method of the bar code-like macro of this disc, more specifically, while rotating the ballast area, the recording laser light is irradiated to extend the ballast area in the direction of the disc. It relates to the recording method of the percussion and the disc made by that method.

From now on, it will be drawn on the optical disc, and in production and distribution, each disc will be recorded on the disc with a sial lot, etc., and whether or not it is a genuine maker's disc. It is used for identification methods. Physically, read the CA in the dry cut to record the Mac (hereinafter referred to as CA) of the bus cut rear ("CA re") where the disc is provided, and to record the disc. ,.

Currently, Hikaridis has been developed from CD to DVD and HD DVD pull ladies. On the other hand, a dry player recorder is required to identify these discs and must identify these discs. There is a way to set up the information with a star as a CA. In addition, it is used to prevent positive copying by using the CA Mac division. In this way, CA Mac is becoming increasingly important and essential.

It is a production process along the direction of the bar code-like CA disc, specifically, for example, DVD ROM, reflection by YAG laser Korea, metal.

Made by leaving. However, for example, there are various problems in the formation of a bar-shaped mask using laser light on an optical disc with a recording capability such as DVD R, and a decision method for this has been proposed. It is.

The patent states the following: In order to carry out Bacco work,

It is possible to shorten the time required to record the hits by increasing the pulse wave number of the laser beam at the same time as raising the body. However, the pulse frequency of laser light is high, and There is a problem that fluctuations occur in the pulse of light, and the shape and shape of various parts of the barcode information are changed, resulting in a decrease in readability. Therefore, in order to solve this problem, the luminous energy generated by the laser transmitter is accumulated for the specified amount of time.

・ The idea is to provide a light emission floor that emits light emitted from the floor at times to pulse light, and a discharge stage that continues to emit light energy generated in the previous floor and the laser up to the next time. In addition, the pulse wave number is high, and the intensity of the pulsed light constituting the pulse train can be kept constant.

Patent 2 also states the following. There are various types of recordings and materials in the CA throwing object, but their gender is different, or it is reflected in the contrast before and after recording, so it directly affects the gender of the photon. However, since CA is the area to be played at the beginning of reading, it is not possible to set conditions according to the body in DLife, so determine the conditions for recording CA information according to the type of body. There is a need for it. So to solve this problem. Has proposed to establish a test area for setting CA cases inside the CA. In addition, in the patent document, when forming CA CA, the laser beam is pulsed to obtain a playback signal with no distortion of the playback signal by finely controlling the macro shape in the BCA report. I can do it.

Furthermore, Patent 3 describes the following. In a body with a two-layer mark, if a CA is formed in the laser on the other layer, the problem is to give damage to the other layer. In order to solve this problem, in the remanufactured body with a number including the ones added to the Bacco, the other fee of the other one is set to 5 or more compared to the fee of the previous one. Propose to do. It is possible to prevent the remaining work from being left behind.

224434

2 2 6 343

3 05 9694 Report Invented

Issues that Ming tries to solve Et al. Found that there were issues that were not disclosed in these techniques in the process of further studying the method of the Bacco-shaped BCA using laser light.

That is, by selectively melting away the material on the disk with the number of tracks formed on the surface of the stamper by using a YAG laser conductor laser or the like, or by recording on the recording. , Which forms a bar-shaped macro along the radial direction, does not become a segment of the bar-shaped macro, but is enlarged and recorded. It has been found that this reliability will be adversely affected.

Because of the above circumstances,

It is an object of the present invention to provide a method for forming a CA mark having a desired shape by preventing the size of the nuclei of the nuclei.

To solve the problem

As a result of trying to achieve the target, it is called the Ian pulse for the laser, and it is called the Ian pulse. As a result, we found that a large amount was required compared to the setting conditions, which caused the macro to become excessively large and wider than the desired code. Furthermore, because it was the beginning of writing, it was found that there was no place for force to be generated at the time of the creation of the Mac, and it was separated or excessively removed by that force, resulting in a negative effect on the reliability of the disc.

Based on these observations, the project has been completed. The introduction of lowering the record level to a certain level solves the above-mentioned problem and provides the following clarification.

In the method of recording in the percussion form extending in the direction of the chair to the ballast area by irradiating the recording laser light while rotating the photon having the bus tailor air, The disk code of the disc is characterized in that the energy of the laser light at the beginning of the laser is smaller than the energy of the laser light.

2 The Bacho-Maco described in the above, wherein the illumination intensity of the laser light is increased step by step from the beginning of recording.

3 Has a stoin area, and a bar code-like mac is formed in the bursting area. The mac records and records the laser energy at the start of the disc. The disc is characterized by being made smaller than the illumination energy of the laser light.

Mysterious

In the morning, the initial laser light energy is smaller than the recording energy, so that the first over-recording of the recording can be prevented, and the total portion of the light is lost. Can adversely affect sex and reliability.

Plan view showing the body structure of a photon disk with a buscutting area

Fig. 2 Partial schematic showing the partial structure of a photon with a bustin

Fig. 3.

An example of a four-code macro device is shown.A five-code method is schematically shown.

6 Schematic representation of energy in the morning

Microscope showing the results of a barcode-like image at 8 Microscope showing the results of a barcode-like mace in the morning 9

Of the end of the bacon

To carry out Ming

Below, I will explain the method of the Bacco-like Mac to A in the case of Pullis (using the state of BDR. However, Akira is not limited to the implementation DR. It can be applied to discs that have a plurality of URLs, such as CD DVD ROM, read-only type, CD R DVD R, and RD DDW AM.

Is a plan view showing the body structure of the clear disc 1, and 2 is a partial plan view showing a region surrounded by a line in order to explain the essentials of the internal structure.

As shown in the figure, the scoring of this embodiment is center 5 and the other side is (burst cut Main information 3 is provided. Inside is formed.

There is an intermediate 2 between the information 3 and the information 3, and it is not limited. Even if it is an area that the user can use freely, it is a reproduction-only area. It was assumed that there was no area. Or it can be an established area.

The middle 2 and the information 3 are shown in 2 and the guide 12 is formed.

Including a reflective material that reflects laser light on the recording surface of the plate-like material 4,

R is provided as needed, and has a length of about 7 mm, and in this order, 1 on the surface opposite to the side in contact with 2 of 13 above

In order to correspond to the above, the first two tracks “= sO” are formed with the roof 3 and the land 1 adjacent to the head.

Recorded in R Based on information 4 2

By irradiating the laser beam of

Main information that can be read optically is recorded on the.

As shown in Fig. 3, each of the Pac-like Macs along the direction of the disc is formed by using the laser device shown in 4 described above.

Fig. 5 is a diagram schematically showing the method of the B-shaped A-Mac. As shown in Fig. 5, the Bacho-shaped Mac is formed by irradiating the laser from the side while rotating the disc, but it seems to be caused by the movement start due to the torque of the stage motor of the Iant Pulse spindle motor. The first minute of recording occurs.

In order to prevent this, in order to prevent this, the recording energy is lowered by a certain level.

Irradiation of Nergy

Defined by

In the light of this, the energy for the Bacco-like Mac is less than the recorded energy, but it can be achieved by adjusting the energy, the laser power, the irradiation duration, or the energy.

Obviously, as a way to increase the energy of unrecorded energy to less than the energy of recording and then increase it to the energy of recording, increase it step by step, or 6

It can be raised on the second floor as shown in. In addition, 6 If the m energy of the recording is made lower than the maximum energy, the energy before recording is reduced as shown in (d), or the energy can be made variable according to the recording state. However, is a schematic illustration of the state of Nerghi, and does not indicate a pulse of the recording laser light.

The number of steps and the length of the energy to be converted is determined by the nature of the recording position and the recording time.

It is 5 for the recorded power of the laser power, and 785 is preferable.

Also, during the adjustment, it is 70 ~ with respect to the recording period, preferably 89.

In addition, the adjustment of the recording

On the other hand, it is ~ 3 monks, and the preferred range is 5 to 2 times.

In the above, in the above 1), various materials used as conventional body materials can be arbitrarily selected and used. In particular, fats such as polycarbonate, polymethylmethyle, Examples of the vinyl and vinyl chloride polymer materials include gold glass such as xylose rufas poliophosphine polyester and aluminum, and these may be used together if necessary. Among these materials, plasticity is preferred from the viewpoint of molding wettability, price, etc., and polycarbonate is particularly preferred.If these oils are used, they should be prepared in a prescribed manner (if it is a disc) by the injection method. Is preferred. Further, it is preferable that the thickness is the above-mentioned mm. Also. However, it is not limited to this. For example, it can be applied and cured by using an externalizing oil.

The dull b land 3a is formed as shown in Fig. 1. This is a mold used for the mold 1 and the surface 12 is subjected to the process of patterning on one side. It is preferable that a stamper called is placed and formed at the same time.

Reflection 3 is a reflection of the laser light and / or reproduction laser light, and is used to increase the reflection of the laser light and to improve the recording performance. It is provided in between, for example, the above-mentioned is formed by ion pretender spallin or the like. Sputtering is particularly preferred from the standpoint of performance and cost.

As a material constituting 3, Au AAC may be a material preferred in ordinary Blu-ray. Or gold such as Pd, or a small amount of these genera or these metals is preferably added.

In addition, for example, AACT> GN, a PC MH f V Nb RWM Re Fe G Rhr Z Cd Ga S Ge Te Pb PS Preservation, is obtained.

There are various types according to the rewriting type. In addition, there is also recording using recorder materials using organic elements.

First, the record 14 using organic elements is explained. The organic element used in 14 is preferably Russian, cyanine, or the like, and is adjusted by dissolving in a solvent such as TFP tetrafluorofluorone). Next, if it is formed by distributing with scottosterin through the above, it is preferable to form it by making it about 30 to 8 mm.

(1)

, AA are nitrogen atoms, selenium rulunes, and children represent the same complex, R each stands for hydrogen atom substitution, and Y, Y2 are in the periodic rule. It represents the same child selected from the elements of the group.

2

f

And, respectively represent renin zoindolenin benzoindolenine, “represents for forming mono- or di-carbonin, X represents an ion, and m is the number of or. In fact, as a record 4, it is possible to use a quality composed of inorganic materials. AS bT TeG S b Te Pd, SCG, etc. are used as such inorganic materials. Machine materials are made by making these materials or Tallinn, etc., and change-type light, and phase change materials are used for recording. One such material is 1 AgS bT TeGeSb. These are formed in the same manner as the above-mentioned material system or by using sputtering.

In line with the above, it is preferable that the above 15 is formed for the purpose of improvement or record 14 during the above 14 14 described later.

15 is preferably a film made of S O Z S S Q b O A 2 or the like, and is preferably formed after the above 4 is formed by, for example, ion plating or sputtering. Of these, the Talinda method is particularly preferable in terms of productivity and cost.

Along with the light, it is a layer that is formed to improve adhesion, which is necessary when using a sheet-like material in the adhesive 6 and 17 described below.

As this, Poxy and other transparent

Fats and oils that have clear externalizing properties are preferred. After spreading to both 5 and the sheet-shaped light 17 having a thickness of about q, which will be described later, by the step of scouring, the 1 15-shaped light 7 is bonded to the sheet by bonding. • 2 light is obtained.

In the light, the above 7 is preferably made of transparent fat. Specifically, it is preferable to use a sheet made of light-transmitting oil such as polycarbonate oil or acrylic, or to apply these oils to form

Usually, it is preferably 0 ·, because it is configured so that a laser beam with a length close to 40 4 n is emitted and emitted.

()

Although the explanation will be explained more concretely by implementation, the implementation is not limited to these implementations. In the first round, a recording disc using organic elements was used.

of

Photoresist () is applied to the glass board by the specified method to form a resist film, and the laser beam is applied to the cutting device. After exposure according to the prescribed method, the developer is developed on the resulting glass plate to create a resist corresponding to the groove on the plate.

Formed.

Next, a rickke was put out on the glass plate by plating, and this was released to obtain a stamper stamper in a disk shape.

Next, set this stamper in the tee of the injection unit, inject the polycarbonate oil into the kyat,

Got got.

The protection of

Using a gold plate as a tapping material, a was formed on a raw surface on which a groove of a shape was formed by a sputtering device.

Next, a dye solution containing the above-described elements was applied by spin coating to form a recording.

In addition, it was formed by sputtering using a sputtering device on this.

After that, an externalizing material mainly composed of acrylic resin was coated on this, and a sheet in the form of a reclamation with a thickness of m was combined on this, and the above was cured by irradiating an external line to form a thickness. Obtained a 12 m disc.

CA)

(

CA laser with laser 8 r X 3 in the CA area of photons that record BCA

At CA, Laser 5 O W, Laser 3 s, Dither “0” in the radial direction, and CA 4 with a width of about 2 was formed.

7 is the true picture of the microscope. As is clear from the truth, the maximum light separation for recording was observed.

()

In this case, CA Mac 4 was formed in the same manner as in the comparison except that the laser was set to 4 W at the start of recording, the recording was changed twice to 50 W after the start of recording.

This is a microscope photograph of the results of this implementation.

As is clear from the truth, the maximum amount of light was not observed for the recording, and a design-like macro-shaped macro was formed.

(2)

The recording mark was set to 0 rP, and before completion of recording, the disk was raised to 2 when 2 records were left. This is a microscope that took a picture of the recorded portion of 9 above. It is also a microscope that took a picture of the record of 1 in this implementation. Dehore The 5 OW

0O “P Laser 2 33 When recording to the end of writing while holding S, reflection occurred at the end. In practice, the energy was reduced by raising the screen before the end of recording. In this way, no reflection was generated, and the cord shape as designed was able to be formed.

Of the issue

(Bustcutting rear)

2

3 Information

CA

Five

This 12 3a Land

Ruf

1

Five

6

7

Claims

The recording laser light is emitted while rotating the photon having the desired buscutting area, and the paste is recorded in the past cutting area in the direction of the disk. The bar code-like initial laser light illumination energy is made smaller than the laser light energy of the mac light.

2 The bar code mask of the laser beam is characterized by the fact that the laser light intensity is gradually increased from the beginning of recording.

3 The light of the laser light before the end of the box-shaped. The Bacho-Maco described in the above, characterized in that the energy of the laser light is reduced.

4 In a disc that has a pastetain area and is formed in a pad-like shape on the bustin

. The laser light of the beginning light. The disc is characterized by being made smaller than the laser light.