CN100389459C

CN100389459C - Small-sized opticall disc initializing device and method

Info

Publication number: CN100389459C
Application number: CNB2005100236890A
Authority: CN
Inventors: 金钟焕
Original assignee: Shanghai LG Electronics Co Ltd
Current assignee: Shanghai LG Electronics Co Ltd
Priority date: 2005-01-31
Filing date: 2005-01-31
Publication date: 2008-05-21
Anticipated expiration: 2025-01-31
Also published as: CN1815571A

Abstract

The present invention relates to content for initialization of a small-sized optical disc, particularly to the relevant content for the initialization of the small-sized optical disc, which does not conform to the existing initialization equipment. The present invention mainly comprises the following steps: in order to insert the small-sized optical disc on one side of an optical disc, at least two clamping devices need to be formed; the small-sized optical disc is inserted into each clamping device, which is used for adjusting the height of the optical disk and a recording surface; lasers are irradiated on the small-sized optical disc which is inserted into the optical disc to carry out initialization. Thus, the effect of initialization of the small-sized optical disc for the initialization equipment of the optical disc which is used by the steps can be achieved through the steps without manufacturing or purchasing new devices for initialization of small-sized optical discs.

Description

Small-sized opticall disc initializing device and method

[technical field]

The invention relates to the content of small-sized opticall disc initializing, especially the relevant content of slight type phase transition optical disk initialization that is not inconsistent with existing initialization apparatus.

[background technology]

Recently, along with the continuous increase of the demand of the high density information imprinting/regenerating unit of removable uses such as logarithmic code camera, cam scrambler and portable terminal machine, the correlative study with the high imprinting medium of the little density of volume is also being carried out in high gear.

Current, the main CD burning mode of using is the phase transition optical disk that causes the phase state variation of imprinting layer by the heat energy of laser.

Above-mentioned phase transition optical disk, be to make its intensification/fusion by laser beam at the regional area of imprinting layer irradiation boundling, and make heat diffusion rapidly, and utilize the compact disk structure of so design to cool off rapidly, make crystalline matrix (matrix) become noncrystalline matter sign and carry out information burning.

And, during regeneration, but from just sense information of the noncrystalline matter sign of imprinting and the reflectance difference between the crystalline matrix.Under the situation of the information cancellation of imprinting,, noncrystalline matter symbol location is become crystalline with the LASER HEATING of relatively low energy.

Like this, utilize the reversible state variation between crystalline and the noncrystalline matter, make by the book film by being increased on the PC basal disc by splash for the phase transition optical disk major part of carrying out information burning.

At this moment, because the Ge-Sb-Te or the synthetic metal machinery of Ag-In-Sb-Te that use by the imprinting layer are to be made by the book film with noncrystalline matter structure, so before using, become crystalline to the imprinting layer as the information storage media.

This process is called initialization, uses under most of situation to carry out the method for local heating through wide region to equidirectional long laser.

Utilize this method to carry out the initialized initialization apparatus of phase transition optical disk, being suitable for most diameter is the CD of 120 millimeters usefulness, so, be suitable for moving under the situation of the compact disk that uses, because the difference that it is big or small can't utilize existing equipment to carry out initialized problem with regard to having produced.

The detailed description of example being carried out with reference to accompanying drawing;

Fig. 1 utilizes the existing initialization apparatus that is just using to carry out initialized situation synoptic diagram.

As shown in Figure 1, initialization procedure is, the focus that makes the initialized position of CD 1 aim at laser 4 need, and the temperature by this position raises and realizes.In the existing equipment, be benchmark when inserting,,, light picker 2 enterable boundaries just arranged also so there is spindle motor 6 below because there is disk holder 5 in top with CD.Promptly be: as shown in Figure 1, although there is inner limit, generally speaking, this boundary is equivalent to 25 millimeters degree, if more above-mentioned light picker 2 is moved to further inside, will clash with disk holder 5 or spindle motor.

Therefore, under the situation of the compact disk of initialization diameter in 20 millimeters to 50 millimeters scopes, the position that needs imprinting is than the more close inside of the inner limit of existing equipment, so be suitable for the problem that diameter is 120 millimeters a existing equipment with regard to having produced to use.

[summary of the invention]

Therefore, the objective of the invention is to propose in order to solve foregoing prior art problems, because possessed the size below 50 millimeters, can't former state use current 120 millimeters initialized Apparatus and method fors so that provide with the phase-change type compact disk of initialization apparatus.

To achieve these goals, the method according to small-sized opticall disc initializing of the present invention is a feature to comprise following step:

At least to form more than one anchor clamps for making, on the surface of described anchor clamps, form book film with above-mentioned compact disk reflectance same substance at CD one side insertion compact disk;

Insert compact disk in above-mentioned anchor clamps, and regulate the height of the imprinting face of above-mentioned CD and compact disk, this regulating step comprises: the clamp back surface that forms in the above-mentioned CD will form more than one hole at least; Has adhesive by above-mentioned hole insertion; Utilize the height that adhesive is regulated above-mentioned compact disk that has of above-mentioned insertion.

Irradiating laser carries out initialization on the compact disk that inserts in above-mentioned CD.

The equipment that carries out small-sized opticall disc initializing according to the present invention is feature to comprise following content:

In utilizing the initialized phase transition optical disk of laser, to form more than one anchor clamps at least for making at above-mentioned CD one side insertion compact disk, the book film of formation and above-mentioned compact disk reflectance same substance on the surface of described anchor clamps,

For making above-mentioned CD identical with the imprinting face height of compact disk, form an above hole at least at the back side of above-mentioned anchor clamps, adhesive material is inserted in above-mentioned hole inside, utilizes the height that adhesive is regulated above-mentioned compact disk that has of above-mentioned insertion.

In sum, initialization apparatus and the method according to compact disk of the present invention has following effect.

The first, do not need to make or buy the new equipment of initialization compact disk, 120 millimeters CD initialization apparatus that just using with existing step carry out the effect of small-sized opticall disc initializing.

The second, need not to be the prototype of compact disk, even if form arbitrarily, as long as it is just passable to produce the anchor clamps that meet its form, so, can not be subjected to the form of compact disk to carry out initialization.

[description of drawings]

Fig. 1 is the synoptic diagram that carries out the phase transition optical disk initialization apparatus according to prior art.

Fig. 2 is that performance is carried out the anchor clamps planimetric map and the sectional view that use in the initialization of compact disk according to the present invention.

Fig. 3 is that performance is carried out the anchor clamps drawing that uses in the small-sized opticall disc initializing according to the present invention.

Fig. 4 utilizes the rubber clay to regulate the synoptic diagram of the situation of the list of compact disk poor (referring to only be fit to compact disk here) according to the present invention.

Fig. 5 carries out the anchor clamps of single poor adjusting and the schematic rear view of compact disk according to the present invention.

Fig. 6 be according to initialization of the present invention the compact disk synoptic diagram.

[embodiment]

Be that the foundation of adding is invented the formation of the example of desiring to reach and the drawing explanation of effect below.

Fig. 2 is that performance is carried out the anchor clamps planimetric map and the sectional view that use in the initialization of compact disk according to the present invention

As shown in Figure 2, be the one side that makes compact disk can enter 120 millimeters CD basal discs 1, form anchor clamps (jig) 7.

The material of above-mentioned anchor clamps 7 can be that polycarbonate or plastics also can be metals.(for ease of understanding, the photo that shows above-mentioned anchor clamps image is added among Fig. 3.)

In this case, for making interval between compact disk and the anchor clamps in tens of um, the interval of maximum is full of makes forr a short time.

And, single poor in order to regulate, shown in the sectional view of Fig. 2, make aperture at the back side of anchor clamps.

For by above-mentioned hole, make clay the same have a height that adhesive material is regulated CD, this be added among Fig. 4 represent.

As shown in Figure 4, behind the insertion compact disk, the hole that forms by the back side inserts clay, has just regulated the height of compact disk in the anchor clamps 7 of CD 1.

Promptly be: the adjusting of the imprinting face by 120 millimeters CDs 1 and the height of the initialized imprinting face of compact disk desire, the focus of the laser beam of harmonizing.

Identical therewith, single poor anchor clamps of adjusting and compact disk back side state are added among Fig. 5 to be showed.

What Fig. 5 showed is: CD 1 is arranged in the clamp back surface that forms, and single poor for regulating through 4 local small holes that produce, and the diagram of adding clay by hole.

At this moment, for the reflectance that makes above-mentioned anchor clamps and compact disk is identical, increase the initialized same book film of desire.Like this, because initialization apparatus is to reflection of light degree sensitivity, in order to make above-mentioned initialization apparatus carry out operating stably, coat the material close such as synthetic metal machinery of Ge-Sb-Te or the synthetic metal machinery of Ag-In-Sb-Te book film with above-mentioned compact disk reflectance at above-mentioned chucking surface.

Identical therewith, utilize anchor clamps to insert compact disk, regulate in single poor initialized process, in the internal diameter of above-mentioned compact disk, produce under home (stacking lib) situation, in home, the situation that the focus servo action stops will to take place.

The home (stacking lib) that the internal side diameter of above-mentioned compact disk exists is in compact disk manufacturing process, the thing that must not produce then (press mold vestige), because such reason, the focus of laser beam just can't regular events, so the action of focus servo will stop.

In this case, the rotation compact disk makes its partially-initialized just passable.

Be added among Fig. 6 with the photo of the same initialized compact disk of method and show.

By such method, 120 millimeters compact disks that CD can't be suitable for initialization apparatus of current use under the immovable situation of current initialization apparatus structure, also can be realized initialization.

By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.

Therefore, the technical scope of this invention is not limited to the content on the instructions, must determine its technical scope according to interest field.

Claims

1. the initial method of compact disk comprises:

2. the initial method of compact disk as claimed in claim 1 is characterized in that,

Above-mentioned have adhesive material clay property arranged.

3. the initial method of compact disk as claimed in claim 1 is characterized in that,

The diameter of above-mentioned compact disk has below 50 millimeters.

4. the initialization apparatus of compact disk comprises:

5. the initialization apparatus of compact disk as claimed in claim 4 is characterized in that,

Above-mentioned have adhesive material clay property arranged.

6. the initialization apparatus of compact disk as claimed in claim 4 is characterized in that, the diameter of above-mentioned compact disk has 50 millimeters.