CN100514456C - Recording method for dye-based recordable optical recording medium, recording medium, and recording apparatus - Google Patents

Abstract

A recording method for a dye-based recordable optical recording medium comprising: recording shortest marks on a recording layer containing a dye formed on a substrate having a guide groove by the use of one pulse beam, and recording second shortest marks or still longer marks at a pulse power as high as or lower than that of the shortest marks by the use of one pulse beam of which two sites of the front edge and the rear edge of pulse are highly energized for a given length of time, wherein a ratio Pc/W4 (Pc represents the exposure dose of a cooling pulse beam applied on the rear edge of pulse, and W4 represents the power of irradiation beams other than those engaged in formation of marks) during recording of each of marks at a recording linear velocity of 12 m/s or more is set within 1.0 to 3.0; or the irradiation time of the cooling pulse Tc after that the pulse is applied with beams when the Pc/W4 ratio is 0.14 or less is set to be as long as or shorter than the basic clock cycle T.

Description

The recording method of dye-based recordable optical recording medium and pen recorder

Technical field

The present invention relates to a kind of recording method, recording medium and pen recorder of optical recording media, particularly relate to a kind of optical recording and reproducing method of dye-based recordable DVD, and the dye-based recordable optical recording medium and the pen recorder that are suitable for this method.

Background technology

At present, as huge capacity compact discs, carrying out the high speed exploitation of DVD ± R.Important technology as improving recording capacity is used for the exploitation of the recording materials of record pit microminiaturization, is that to read with technological development such as the short wavelengthizations of semiconductor laser be necessary for employing, the record pit of the Image Compression of representative with MPEG2.

Up to now, semiconductor laser as the red wavelength zone, have only the AlGaInP laser diode of the 670nm zone that bar code reader or gauging instrument use to become commercialized, but be accompanied by the densification of CD, red laser begins formally to use on optical memory market.In the occasion of DVD driver, the laser diode of 2 wavelength bands that uses 635nm zone and 650nm zone as light source by standardization.On the other hand, reproducing special-purpose DVD-ROM driver uses the wavelength that is about 650nm to become commercialized.

Usually, form the dye-based recordable DVD medium in hole (mark) under specific writing speed by type of heating, the pulse width and the recording power of the recording impulse string that the lasing fluorescence during record produces are optimized, and the state of mark that forms under different line speed records or space (space) changes.Promptly, produce the thermal capacity deficiency owing to form the necessary heating pulse of mark, perhaps for heating-up temperature difference that best decomposition temperature arrived, the average length of mark produces deviation, perhaps the dutycycle difference of Zui Jia heating pulse can not get uniform mark width, corresponding to mark lengths, can produce thick or thin mark width, so jitter characteristics worsens.

Because such background, for example put down in writing the luminescent waveform (for example referring to 4.7 basic format specifications of DVD+R 1.3 editions and 8.5 basic format specifications of DVD+R 1.0 editions) of recording impulse string for DVD+R.The former is the single-layer type of corresponding 16 times of speed, and the latter is the specifications of 2 layers of DVD+R medium of corresponding 2.4 times of speed.

But, particularly on 2 stratotype medium with 2.4 times of writing speeds whens record more than the speed, under the luminescent waveform of the recording impulse string of putting down in writing in the above-mentioned specifications, recording medium can not get sufficient quality sometimes.

And about the physical format of DVD class medium, when the form of DVD-R medium, cutting is called the area part of base station prefabricated pit, makes its standardization with form.This mode base station prefabricated pit signal (LPPb) less than 0.16 situation under prefabricated pit signal such as prefabricated pit address can not regenerate well, surpass 0.32 o'clock LPP code book and in the data field, produce the noise behavior, often produce error in data.Thereby LPP cuts the line width with what the CD master-disc inching was suitable for recording materials, and LPPb must cut base station the line width and be controlled in 0.16～0.32 the scope.

In addition, as the example of the optical recording media that in recording layer, has used pigment, have and use polymethine pigment or polymethine pigment and Photostabilised material as the optical recording media of recording materials, with tetraazatetradecane porphyrin (porphyradine) pigment or match layer that peaceful pigment+azo-metal chelate pigment (salify pigment) makes and reflection horizon optical recording media, use first as recording layer

(metallo-chelate) pigment+other pigments as the optical recording media of recording materials, use methine two pyrroles (metallo-chelate) pigment+other pigments as the optical recording media of recording materials etc., too numerous to enumerate.In addition, known a large amount of pigment that uses in recording materials carries out the optical recording media of multiple-pulse record, but known to just the inventor waits, be conceived to the present invention such the dye-based recordable DVD medium are carried out record with 1 pulse, and the document that carries out the wave recording in high linear speed when record is found as yet.

And use square wave or be knownly (for example to open the 2001-243626 communique referring to the spy corresponding to the recording method of 1 pulsed light of 1 mark, the spy opens the 2002-063721 communique, the spy opens the 2001-273636 communique, the spy opens the 2002-298415 communique, the spy opens the 2001-176073 communique, and the spy opens 2001-155339 communique and No. 4646103 instructions of United States Patent (USP)).

Summary of the invention

The present invention is in order to solve existing each problem, to realize that following purpose is a problem.That is, the objective of the invention is to, a kind of optical recording and reproducing method that can obtain good wave recording when the dye-based recordable DVD medium are carried out record more than the 12m/s is provided.

In addition, the present invention is to use with CD class medium and is in a ratio of the format mode of Worm type dvd system that has with short wavelength the semiconductor laser that is emission wavelength, its purpose is, provide a kind of and LPP mode same, eliminate the additional effective means that writes the not posting field of part in data, in addition, also provide a kind of and compare, can control the fine mode of cutting the line width and can not produce the excellence of the error in data that causes to the leakage of data division owing to the LPP signal when making CD master-disc with DVD-R base station prefabricated pit mode.

The recording method of dye-based recordable optical recording medium of the present invention is characterised in that, have on the recording layer that is formed at the pigment on the substrate with gathering sill, come the shortest mark of record length with a pulsed light, below the pulse power of the shortest mark of length, and the mark long mark shorter than length write down with 1 pulsed light within a certain period of time in two positions of the leading section of pulse and rearward end, line speed record during above-mentioned each label record is that 12m/s is when above, in the rayed amount of the cooling pulse of above-mentioned pulse rearward end as Pc, the power of the irradiates light beyond the pulsed light that forms corresponding to mark is during as W4, Pc/W4 is the scope below 3.0 more than 1.0, perhaps Pc/W4 is under the situation of the scope below 0.14, and the irradiation time Tc of the cooling pulse after above-mentioned pulse applies is the length below 1 times of fundamental clock period T.

Can solve existing every problem according to the present invention, for the dye-based recordable DVD medium, the record of low wow and flutter, low error rate becomes possibility under the linear velocity more than the 12m/s, under the swing in high frequency form that can make more simply than base station prefabricated pit form that in DVD-R, uses, additional the writing of implementation data part expeditiously.

In addition, can provide a kind of and can reduce the not posting field that supplementary data partly starts, and the recording and playback method of the pigment DVD medium of low error rate.

Dye-based recordable optical recording medium of the present invention is characterised in that to have recording layer on substrate, also has at least one layer in the hard conating that is selected from reflection horizon, protective seam, bonding coat, protective substrate, real estate.

Dye-based recordable optical recording medium of the present invention is characterised in that; it is to have recording layer and reflection horizon, protective seam on the substrate of the gathering sill with the swing of being provided with at least; and the single-layer type structure that has protective substrate by bonding coat; or 2 groups of structural units that have recording layer, reflection horizon are at least arranged on the substrate of the gathering sill with the swing of being provided with, and by 2 layer structures of above-mentioned bonding coat at outside adhesive substrates.

The pen recorder of dye-based recordable optical recording medium of the present invention is characterised in that, possesses the formation device that forms the recording layer that contains organic pigment on the substrate of gathering sill having, with the 1st pen recorder of the shortest mark of 1 pulsed light record length on above-mentioned recording layer with below the pulse power of the shortest mark of above-mentioned length, and 1 pulsed light of the leading section of pulse and two within a certain period of time high outputizations in position of rearward end writes down the 2nd pen recorder of the mark of the later length of second weak point, when above-mentioned each label record, the rayed amount of the cooling pulse that is provided with later in the pulse rearward end is as Pc, the power of the irradiates light beyond the pulsed light that forms corresponding to mark is during as W4, Pc/W4 is that 12m/s is the scope below 3.0 more than 1.0 when above at line speed record, perhaps Pc/W4 is under the situation of the scope below 0.14, and the irradiation time Tc of the cooling pulse after above-mentioned pulse applies is the length below 1 times of fundamental clock period T.

Description of drawings

Fig. 1 is the key diagram that basic pulse irradiation pattern of the present invention is shown.

Fig. 2 A is the sectional view that the layer configuration example of common Worm type optical disk is shown.

Fig. 2 B is the sectional view of other examples that the layer structure of common Worm type optical disk is shown.

Fig. 2 C is the sectional view of other examples that the layer structure of common Worm type optical disk is shown.

Fig. 2 D is the sectional view of other examples that the layer structure of common Worm type optical disk is shown.

Fig. 3 A is the sectional view that the layer configuration example of common CD-R medium is shown.

Fig. 3 B is the sectional view of other configuration example that the layer structure of common CD-R medium is shown.

Fig. 3 C is the sectional view of other configuration example that the layer structure of common CD-R medium is shown.

Fig. 4 A is the sectional view that the layer configuration example of Worm type DVD medium of the present invention is shown.

Fig. 4 B is the sectional view of other examples that the layer structure of Worm type DVD medium of the present invention is shown.

Fig. 4 C is the sectional view of other examples that the layer structure of Worm type DVD medium of the present invention is shown.

Fig. 4 D is the sectional view of other examples that the layer structure of Worm type DVD medium of the present invention is shown.

Fig. 5 is the key diagram of the pulse irradiation pattern that uses in the embodiment of the invention.

Fig. 6 is the mac function figure that the formation example of CD drive of the present invention is shown.

Fig. 7 is to use the simple block diagram of the signal conditioning package of CD drive of the present invention.

Fig. 8 is the key diagram that an example that changes for the quiver value of Pc/W4 of the present invention is shown.

Fig. 9 is the key diagram that other examples that change for the quiver value of Pc/W4 of the present invention are shown.

Figure 10 is the key diagram that other examples that change for the quiver value of Pc/W4 of the present invention are shown.

Figure 11 is the key diagram that other examples that change for the quiver value of Pc/W4 of the present invention are shown.

Figure 12 is the key diagram that other examples that change for the quiver value of Pc/W4 of the present invention are shown.

Figure 13 is that the irradiation time Tc that cooling pulse of the present invention is shown is the key diagram of the pulse irradiation pattern below 1 times of fundamental clock period T.

Embodiment

Below, with reference to accompanying drawing embodiments of the present invention are elaborated.

Fig. 1 shows the basic pulse irradiation pattern that uses in recording method of the present invention etc.

The pulse length (T1) of short mark is preferably in 1/16～48/16 times scope of fundamental clock period T, particularly preferably in 25/16 times～48/16 times scope.This is to reduce easily because pulse length (T1) in short-term, writes down susceptibility.

And after short from second the mark of length, be the mark beyond the mark of shortest length, add the power of adding and the length (T2) of high outputization is preferably 1/16 times～32/16 times of fundamental clock period T at the beginning part of train of impulses, be preferably 16/16 times～32/16 times especially.And, on rearward end, add the power added and the length (T3) of high outputization is preferably 0/16 times～32/16 times of fundamental clock period T, be preferably 0/16 times～16/16 times especially.

The power of adding (W1) is with respect to the power that does not add the part of adding power (W2), and preferred W1/W2 is than 1.0 times big, but than 2.0 times of little scopes.When departing from this scope, the length of mark departs from fundamental clock easily, is difficult to obtain good wow and flutter sometimes.In addition, the relation of adding the rearward end power (W3) of the mark beyond the pulse power (W0) of power W1, the power W2 when not adding, shortest length mark and the shortest length mark is preferably W0 〉=W1 〉=W3, and under the situation of W1 〉=W3 W3 is arranged〉relation of W2, W1〉relation of W3 〉=W2 arranged under the situation of W3.

Among the present invention, before each pulsed light, can shine the pulsed light light in addition that forms corresponding to mark.In the example of Fig. 1 between the recording impulse string irradiates light horizontal component of W4 carry out the irradiation of pulsed light.And when each label record, be provided with the cooling pulse zone later in the pulse rearward end, and with its rayed amount as Pc, Pc/W4 when 12m/s is above easily obtains good wow and flutter at 1.0～3.0 range contents at line speed record.Particularly, interfere for the heat that reduces between mark, mostly Pc is set in below the 0.1mW, when still setting the power that satisfies Pc 〉=W4 relation, the 3T mark is easy to generate distance, obtains good wow and flutter under low-power easily.Particularly line speed record is (5 inches/when s) above, obtain such effect easily of 12.64m/s.And Pc/W4 surpasses at 3.0 o'clock, in high Pw (power) side, and the shake easily because the 3T mark becomes, the easy variation of wow and flutter.

In addition, cooling pulse when Pc is 0mW (Tc) shortens, and is 0.75～2.25mW by making W4, obtains and above-mentioned identical effect easily, and the 3T mark is easy to generate distance, thereby obtains good wow and flutter easily.

At this moment, Tc is preferably the length below 40/16 of fundamental clock period T, and line speed record obtains good wow and flutter easily when 12m/s is above.Under the situation of DVD medium, adopt single-layer type recording medium can set according to the different of line density with 2 stratotype recording mediums, the line density of single-layer type is 3.49m/s, and the line density of 2 stratotypes is 3.83m/s.Particularly the call wire density of 2 stratotype recording mediums, promptly can obtain better effect when 3.83 ± 0.03m/s for the line speed record of DVD signal.

At present, also proposed to write the recording method of 1 mark with a plurality of pulsed lights (multiple-pulse), but because use a plurality of pulsed lights, under the situation that writing speed is accelerated, because the time that pulsed light rises, descends is easy to generate deviation, replying more at a high speed becomes difficulty, therefore, is difficult to the line speed record that adopts 12.64m/s above.

Therefore, the advantage of recording method of the present invention provides a kind of like this recording method, and it compares the multiple pulsed light record because be that each mark adopts 1 pulsed light to come record, and the deviation of record quality diminishes.

The example of this power control waveform of the present invention is shown among Fig. 5.

Follow the optical characteristics of declare record layer necessity.

As optical characteristics necessary in the recording layer, the recording layer individual layer near the light of the wavelength region may the long wavelength of record-playback wavelength, be the scope that the refractive index n of the light of recording light and the wavelength region may of reproducing light wavelength ± 5nm is preferably 1.5≤n≤3.0, extinction coefficient k is preferably the scope of 0.02≤k≤0.2.N was difficult to obtain sufficient optical change less than 1.5 o'clock, and because record degree of modulation step-down, therefore not preferred, when n surpassed 3.0, it is too high that wavelength dependency becomes, even the record-playback wavelength region may also mistake can occur, therefore not preferred.In addition, k was less than 0.02 o'clock, because the recording sensitivity variation is therefore not preferred, k surpasses at 0.2 o'clock, is difficult to obtain 50% reflectivity, and is therefore not preferred.

In addition, DVD is reproducing on the special machine near 650nm by standardization, but the record light wavelength of recordable type medium is except the 635nm that writes (authoring) specialized media, as conventional application, at 650～660nm place by standardization.But these wavelength are centre wavelength after all, produce deviation owing to the deviation of LD (laser diode) manufacturing of using in light such as irradiates light, playback light at short wavelength side and long wavelength side.In addition, LD is on its characteristic, and usually, wavelength moved to long wavelength side when temperature rose.The present invention is the method that can implement with the recording wavelength of 600～720nm scope of comprising above-mentioned wavelength region may, preferably the method that can implement with the recording wavelength of 635～665nm scope.

Below, the swing characteristic that is arranged on the gathering sill that crawls on the substrate is set forth.The T that is used for this hunting frequency of special provision is the fundamental clock cycle, if DVD (for example 4.7GB) medium are about 0.133 μ m, represents to be about 38 nanoseconds with the time.

Usually, the frequency band as swing can use to be equivalent to 150T～400T.But no matter this frequency band is the frequency modulation (PFM) or the situation of phase modulation (PM), all low excessively in the frequency of carrying out swinging when data write troactively, produces suitable blank between preceding data and write data complement, therefore is not suitable for high density recording.In contrast, LPP is set in DVD-R, by the writing position of this LPP signal control data.

But, in the LPP mode, when the signal amplitude of LPP is too small, can not read LPP well, on the contrary, when LPP was excessive, the LPP signal itself bled in the data that write, and produced the bad phenomenon that error in data often takes place.Therefore, LPP produces 0.16≤LPPb≤0.32, the restriction that preferred 0.18≤LPPb≤0.26 is such, and when CD master-disc was made, that must control base station imperceptibly cut the line width.

In contrast, if be set to the swing in high frequency mode, then LPP just there is no need, because therefore modulated wobbles and taking synchronously is unlikely to the situation of frequent generation error in data as the LPP mode.Hunting frequency is preferably the scope of 4T～96T among the present invention.Than 4T hour, frequency was too high, was difficult to detect, and aspect Spin Control or the address detected reliability problem was being arranged also.

On the other hand, when bigger than 96T, underfrequency, excessive at interval in the joint when chasing after write data, problems such as reduction of generation capacity or data processing speed reduction.

Wobble amplitude as the DVD medium of object of the present invention, so long as, then becoming easy as the synchronous cooperation under the swing of the object of the invention by suitable wave filter, the scope of the satisfied 0.1≤Wo/PP of ratio Wo/PP≤0.4 of the push-pull signal (PP) of the wobble amplitude (Wo) of the signal of the Hi-pass filter by 4MHz, 30kHz, low-pass filter and the wave filter by suitable wave filter, for example 30kHz for example.This ratio is more preferably in the scope of 0.15≤Wo/PP≤0.30.If the value of Wo/PP is less than 0.1, though take synchronously, signal intensity is insufficient, in addition, surpasses at 0.4 o'clock, and error in data has the tendency of increase.But, to compare with the LPP mode, the degree of influence that the error in data of the big medium of LPP is taken place is little, along with the error in data of the increase of wobble amplitude is eased.

In addition, when making CD master-disc, want LPP with the LPP mode and cut the line width and be arranged in above-mentioned 0.16～0.32 the scope, height to cut line width control technology be necessary.In contrast, in the swing in high frequency mode of the present invention, as long as the size of the vibratory output of source and swing takes place (in the circuit of control swing vibratory output in the management high frequency waves, vibratory output can be arbitrarily and repeatability make well), just can reach purpose of the present invention, thereby the qualification rate of the qualification rate of CD master-disc or medium can there be tremendous raising.

In addition, as the groove shape of the substrate with above-mentioned form, if to use organic pigment to be example by the situation that the solvent application method forms recording layer, preferred groove depth is 100～250nm, more preferred 150～200nm.During groove depth deficiency 100nm, push-pull signal can not fully obtain, and can not seek rail control.In addition, if surpass 250nm, transfer printing rust when molding substrate (sweet く), therefore not preferred.

In addition, the pigment groove depth when being provided with the pigment recording layer is being made as hunting frequency mT (m is a natural number, and T is with above-mentioned identical), when the pigment groove depth is made as d1 preferably in the scope of 1200≤d1 * m≤160000.D1 * m is lower than at 1200 o'clock, can not obtain sufficient difference signal, can not seek rail fully when record-playback, and d1 * m owing to produce vibration, remained not preferred for seeking rail greater than 160000 o'clock in addition.In addition, the substrate groove depth of transfer printing boundary of aforesaid substrate moulding of resulting from also has boundary, therefore, in fact can not surpass 160000.

In addition, for guaranteeing the capacity of recording density 4～5GB, track space is to be necessary about 0.64～0.8 μ m.For groove width, according to recording materials and difference, but in nearly all organic material, can both use the width of wide 0.18～0.40 μ m of half value.

Below, the layer structure of dye-based recordable DVD medium of the present invention, the characteristic and the constituent material of each layer are described.

Fig. 2 A～Fig. 2 D is the layer example of structure of common Worm type optical disk, and Fig. 3 A～Fig. 3 C is the layer example of structure of common CD-R medium, and Fig. 4 A～Fig. 4 D is the layer example of structure of Worm type DVD medium.Especially, Fig. 4 D is the layer example of structure of the recording medium of one side 2 stratotypes.The preferred basic structure of dye-based recordable DVD medium of the present invention is mode that recording layer is clipped in the middle with bonding agent fit the 1st substrate and the 2nd substrate (protective substrate) shown in Fig. 4 B～Fig. 4 D.

Recording layer can be the organic pigment individual layer, in order to improve reflectivity, also can be the lamination in organic pigment layer and reflection horizon.Between recording layer and the substrate bottom or protective seam can be set, for improving function, can be the formation of each layer being made the rhythmo structure more than 2 layers.What the most generally use is the structure that comprises the 1st substrate/recording layer (organic pigment layer)/reflection horizon/protective seam/bonding coat/the 2nd substrate (protective substrate).

Specify each layer that constitutes medium below.

(substrate)

When substrate-side was carried out record-playback, the laser of 1 pair of use of substrate must be transparent, but then needs not to be transparent when the recording layer side is carried out record-playback.As baseplate material, for example can use plastics such as vibrin, acrylic resin, polyamide, polycarbonate resin, polyolefin resin, phenolics, epoxy resin, polyimide resin or glass, pottery, metal etc.In addition, also can seek gathering sill or the pre-forms (preformat) such as guiding hole and address signal that rail is used in substrate surface formation.

(recording layer)

Recording layer 2 is that the irradiation by laser produces some optical change, and the layer of the different recording information before and after changing according to this, as its material, uses the material that contains organic pigment (for example as principal ingredient).Here, principal ingredient is meant the organic pigment that contains necessary abundant amount in the record-playback, except that a small amount of additive of suitably adding according to needs, only uses organic pigment usually.

As the example of organic pigment, can enumerate azo class, first

Class, methine two pyroles, (gathering) first alkynes class, naphthalene phthalocyanines, phthalocyanines, tetraazatetradecane porphyrin class, spiny dogfish alkanes (ス Network ア リ リ ウ system system), crocic acid class (Network ロ コ ニ ウ system

), pyrans class, naphthoquinones class, anthraquinone class (indanthrone kinds), xanthene class, triphenylmethane, camomile lopps, tetrahydrochysene choline, luxuriant and rich with fragrance class, three benzo thiazide pigments or their metal complex etc.Wherein, preferred azo (metallo-chelate) pigment, first (metallo-chelate) pigment, squalane (metallo-chelate) pigment, methine two pyrroles (metallo-chelate) pigment, cyclonite phthalocyanine dye, tetraazatetradecane porphyrin pigment.

As its thermal decomposition characteristic of the pigment that uses in recording layer, preferred kick off temperature is 100～360 ℃, preferred especially 100～350 ℃.When kick off temperature surpassed 360 ℃, the hole during record formed and can not carry out smoothly, and jitter characteristics worsens.In addition, during less than 100 ℃, the storage stability of disc worsens.

To improve optical characteristics, recording sensitivity, characteristics of signals etc. is purpose, can in above-mentioned pigment, mix other organic pigments, metal, metallic compound, perhaps also can be with uvea and the layer laminate that contains other organic pigments, metal, metallic compound.

As such metal, the example of metallic compound, can enumerate In, Te, Bi, Se, Sb, Ge, Sn, Al, Be, TeO ₂, SnO, As, Cd etc., can be with their a kind of independent use, perhaps dispersing and mixing or lamination use respectively.

In addition, can also be in above-mentioned dyestuff the dispersing and mixing macromolecular material, for example various materials such as ionomer resin, polyamide, vinyl-based resin, natural polymer, polysiloxane, liquid rubber or silane coupling agent etc., in addition, with the characteristic improvement is purpose, can also use stabilizing agent (for example transition metal complex compound), spreading agent, fire retardant, lubricant, antistatic agent, surfactant, plastifier etc. together.

The formation of recording layer can be undertaken by common means such as evaporation, sputter, CVD, solvent application.When using rubbing method, above-mentioned dyestuff etc. can be dissolved in the organic solvent, the rubbing method commonly used by spraying, roller coat, dipping, spin coating etc. carries out.As the organic solvent that uses, can enumerate alcohols such as methyl alcohol, ethanol, isopropyl alcohol usually; Ketones such as acetone, MEK, cyclohexanone; N, amide-types such as dinethylformamide, N,N-dimethylacetamide; Sulfoxide classes such as dimethyl sulfoxide; Ethers such as tetrahydrofuran, diox, ether, glycol monoethyl ether; Ester such as methyl acetate, ethyl acetate class; Aliphatic halogenated hydrocarbon classes such as chloroform, methylene chloride, ethylene dichloride, phenixin, trichloroethanes; The fragrant same clans such as benzene, dimethylbenzene, monochloro-benzene, dichlorobenzene; Cellosolve such as methyl cellosolve, ethoxy ethanol class; Hydro carbons such as hexane, pentane, cyclohexane, methylcyclohexane etc.

The thickness of recording layer be 10nm～10 μ m be suitable, be preferably 50～200nm.

(bottom)

Bottom 3 is provided with following purpose.

(1) improves cohesive, (2) isolated water or gas etc., (3) and improve that reflectivity is improved in storage stability, (4) of recording layer, (5) protective substrate is not subjected to solvent infringement, (6) to form gathering sill, guiding hole, pre-form etc.

For the purpose of (1), can use various macromolecular compounds such as ionomer resin, polyamide, vinylite, natural resin, natural polymer, polysiloxane, liquid rubber or silane coupling agent etc.

For the purpose of (2) and (3), can beyond above-mentioned macromolecular material, use mineral compounds such as SiO, MgF, SiO2, TiO, ZnO, TiN, SiN, can also use metal or metalloids such as Zn, Cu, Ni, Cr, Ge, Se, Au, Ag, Al.

For the purpose of (4), can use metals such as Al, Au, Ag or contain the organic film with metallic luster of first alkynes dyestuff, xanthene class dyestuff etc.

For the purpose of (5) and (6), can use ultraviolet curable resin, heat reactive resin, thermoplastic resin etc.

As the thickness of bottom, the scope of 0.01～30 μ m is suitable, is preferably the scope of 0.05～10 μ m.

(reflection horizon)

As the material in reflection horizon 6, can enumerate Au, Ag, Cr, Ni, Al, Fe, Sn etc. can obtain high reflectance, uncorruptible metal and metalloid simple substance, but from reflectivity or productive viewpoint, preferred especially Au, Ag, Al.In addition, these metals or metalloid can use the alloy that also can make more than 2 kinds to use separately.

For the reflection horizon is formed with membranaceous, can enumerate evaporation, sputter etc. as film forming method, as thickness, be the scope of 50～500nm, be preferably the scope of 100～300nm.

(protective seam, real estate hard conating)

Protective seam 4 and real estate hard conating 5 are provided with following purpose.

Improving reflectivity etc. with the injury of injury-free, the dust of (1) protection recording layer (reflection-absorption layer), pollution etc., storage stability, (3) that (2) improve recording layers (reflection-absorption layer) is that purpose is used.For these purposes, can use and above-mentioned bottom identical materials.In addition, also can use organic materials such as thermal softenings such as polymethyl acrylate resin, polycarbonate resin, epoxy resin, polystyrene resin, vibrin, celluosic resin, aliphatic hydrocarbon resin, natural rubber, styrene-butadiene resin, neoprene, paraffin, alkyd resin, drying oil, rosin, hot melt property resin.The most preferably ultraviolet curable resin of productivity excellence.

The thickness of protective seam or real estate hard conating is the scope of 0.01～30 μ m, the scope of preferred 0.05～10 μ m.

In bottom, protective seam and real estate hard conating, can also similarly contain stabilizing agent, spreading agent, fire retardant, lubricant, antistatic agent, surfactant, plastifier etc. with recording layer.

(protective substrate)

From protective substrate side irradiating laser the time, protective substrate 7 must be transparent for the laser that uses, but can not be transparent also when using as simple fender.Operable protective substrate material and aforesaid substrate material are identical, can use in plastics such as being selected from vibrin, acrylic resin, polyamide, polycarbonate resin, polyolefin resin, phenolics, epoxy resin, polyimide resin or glass, pottery, the metal etc. more than a kind or 2 kinds.

(bonding coat)

As the material of bonding coat 8, so long as material that can bonding 2 recording mediums, any material can, when considering productivity, preferred ultraviolet-curing adhesive or heat-fusible adhesive.

Below, record reproducing device of the present invention is described.

CD uses as the device of record high capacity information, and CD carries out record-playback by CD drive (record reproducing device) usually.Here, carry out brief description for the structure of CD and CD drive.

DVD-RAMWO, DVD-R, DVD+R and DVD-RAM, DVD-RW, DVD+RW disc are the DVD (Digital Versatile Disc) that can write (can write down).DVD-RAMWO, DVD-R, DVD+R are only to write DVD (also being called DVDWrite Once) once.In addition, DVD-RAM, DVD-RW, DVD+RW are the DVD that can repeatedly write.CDs such as these DVD+R or DVD+RW disc can carry out information record reproducing by following driver as shown in Figure 6.

For CD drive, Fig. 6 is the functional block diagram that an example of its major part formation is shown.In the drawings, 11 is CD, and 12 is spindle drive motor, 13 is light picker, and 14 is motor driver, and 15 is read-out amplifier, 16 is servomechanism installation, 17 is the DVD demoder, and 18 is the ADIP demoder, and 19 is laser controller, 20 is the DVD scrambler, 21 is the DVD-ROM scrambler, and 22 is buffer memory RAM, and 23 is cache manager, 24 is the DVD-ROM demoder, 25 is the ATAPI/SCSI interface, and 26 is D/A converter, and 27 is ROM, 28 is CPU, 29 expression RAM, LB represents laser, Audio represents audio output signal.

In this Fig. 6, arrow is represented the main flow direction of data, in addition, for simplifying this figure, in the CPU28 of each block diagram of control chart 6, only uses thick line, will with the omission that is connected of each frame.Control program with the code compiling that can understand with CPU28 is stored among the ROM27.In addition, when the power supply of CD drive was the ON state, said procedure was loaded on (not shown) in the primary memory, and above-mentioned CPU28 simultaneously, controls necessary data etc. and temporarily is kept among the RAM29 according to the running of this programmed control each part mentioned above.

The formation and the running of CD drive are expressed as follows.CD 11 is driven by spindle drive motor 12 rotations.This spindle drive motor 12 is controlled to be certain speed by motor driver 14 and servomechanism installation 16 with linear velocity or angular velocity.This linear velocity or angular velocity can change interimly.

Not shown semiconductor laser, optical system, focusing gearing are installed in the light picker 13, seek rail gearing, photo detector and position transducer, laser LB is shone on the CD 11.In addition, this light picker 13 can be by searching motor (シ-Network モ-) move to balladeur train (sledge) direction.These focus on gearings, seek the rail gearing, search motor, and based on the signal that obtains from photo detector and position transducer, by motor driver 14 and servomechanism installation 16, the luminous point of control laser LB is positioned at the target location on the CD 11.

And, when reading (during data read), the reproducing signal that obtains by light picker 13 be read that amplifier 15 amplifies and 2 values after, be input in the DVD demoder 17.2 value data of input are carried out 8/16 demodulation in this DVD demoder 17.In addition, per 8 of record data are modulated (8/16 modulation) together, in this modulation, are converted to 16 with 8.At this moment, close PVC Star ト in conjunction with a position (Knot) on average and equally used the number of " 1 " and " 0 " so far.Be referred to as " inhibition of DC composition ", can suppress the change of the clipping lever of the reproducing signal that ended by DC.

Demodulated data is carried out deinterleaving (デ イ Application -リ-Block) and wrong treatment for correcting.Then, these data are input in the DVD-ROM demoder 24, for improving the reliability of data, further carry out wrong treatment for correcting.Like this, the data of having carried out 2 error correction processing temporarily are kept among the buffer memory RAM22 by cache manager 23, to pass through ATAPI/SCSI interface 25 as the neat state of sector data, all are sent in the not shown principal computer.In addition, in the occasion of music data, the data of exporting from DVD demoder 17 are imported into the D/A converter 26, and Audio is removed as the analogue audio frequency output signal.

In addition, write fashionablely, by ATAPI/SCSI interface 25, the data that send from principal computer are buffered manager 23 and temporarily are kept at the buffer memory RAM22.Then, write activity begins, and still, at this moment, laser spot must be placed before this to write the beginning place.In DVD+RW/+R, this place can be tried to achieve by the swinging signal that carves by crawling of track on CD 11 in advance.

In addition, in DVD-RW/-R, above-mentioned place can replace swinging signal by the base station prefabricated pit to be obtained, and in addition, in DVD-RAM/RAMWO, can obtain by prefabricated pit.

In the swinging signal in the DVD+RW/+R disc, contain the address information that is called as ADIP (ADress InPre-groove), this information can read out by ADIP demoder 18.In addition, import in the DVD scrambler 20, just can carry out data and write in the tram on the CD 11 by the synchronizing signal that this ADIP demoder 18 generates.The data of buffer memory RAM22 are carried out additional or interweave (the イ Application -リ-Block) of bug patch code in DVD-ROM scrambler 21 or DVD scrambler 20, by laser controller 19, light picker 13, be recorded on the CD 11 by wave recording of the present invention.

Record reproducing device of the present invention is to being the recording layer of principal ingredient with the organic pigment having what form on the substrate of gathering sill, with 1 the highest the shortest mark of pulsed light record length of output, below the pulse power of the shortest mark of length, and 1 pulsed light of the leading section of pulse and two within a certain period of time high outputizations in position of rearward end writes down the later mark of the second short length, when above-mentioned each label record, the rayed amount of the cooling pulse that is provided with later in the pulse rearward end is as Pc, the power of the irradiates light beyond the pulsed light that forms corresponding to mark is during as W4, Pc/W4 is that 12m/s has below 1.0～3.0 when above at line speed record, perhaps Pc/W4 is under the situation of the scope below 0.14, the irradiation time Tc of the cooling pulse after above-mentioned pulse applied is set at the function of the length below 1 times of fundamental clock period T, thereby can realize high-quality record under high linear speed.

And, in the transcriber of the present invention, the power information of the irradiates light beyond the pulsed light that forms with the information of the pulse power of only shortest length mark with corresponding to mark is recorded in the gathering sill in advance, by using such dye-based recordable DVD medium, can in CD, set only record condition.That is, by the above-mentioned pulse power information that writes down in the gathering sill in the reading and recording transcriber, the setting recording condition can realize there is not wrong only record thus.

Object lesson during as DVD+R will can be set above-mentioned pulse power as the ADIP information coding of swinging signal record in gathering sill.

Fig. 7 is to use the sketch of the signal conditioning package of CD drive shown in Figure 6.

Signal conditioning package 100 comprises main control unit 101, interface 102, pen recorder 103, input media 104 and display device 105, optical disc apparatus 106.

Main control unit 101 contains CPU (central processing unit, microcomputer), primary memory (all not shown) etc. and constitutes, the integral body of control principal computer.

Interface is and the interface of the two-way communication of optical disc apparatus 106 that this interface 102 is a standard with standard interfaces such as ATAPI and SCSI.Interface 102 is connected with the communication interface of above-mentioned optical disc apparatus 106.In addition, the connection form between each interface not only can be to use the cable of telecommunication cable order wires such as (for example scsi cables) to connect, and also can be the wireless connections that utilize infrared ray and other electromagnetic waves etc.

In the pen recorder (HDD, hard disk) 103, the program of the code compiling that can be understood by the microcomputer of main control unit 101 has been installed.In addition, when the driving power of signal conditioning package 100 was in the ON state, said procedure was loaded in the primary memory of main control unit 101.

Display device 105 has for example CRT, LCD (LCD), plasma display panel (PDP) display unit (not shown)s such as (PDP), shows the various information from main control unit 101.

Input media 104 has at least a input medium (not shown) in for example keyboard, mouse, the localizer etc., and the various information of user's input are notified to main control unit 101.In addition, also can import from the information of input medium input with wireless mode.In addition, as display device 105 and input media 104 incorporate devices, CRT with touch pad etc. is for example arranged.In addition, signal conditioning package 100 installing operating systems (OS).In addition, the armamentarium of configuration information treating apparatus 100 is managed by OS.

Below, at length embodiments of the invention are described, but the present invention is not subjected to any restriction of these embodiment.

Having diameter that groove depth 32nm, groove width (bottom width) 0.25 μ m, track pitch 0.74 μ m, hunting frequency be equivalent to the gathering sill relief pattern of 32T is that 120mm, thickness are on the surface of the 2nd substrate made of the polycarbonate of 0.57mm,, form by thickness by sputtering method and to be about the 2nd reflection horizon that the AgIn (about 99.5/0.5) of 150nm makes as sputter gas with Ar.

Then, on this surface, reflection horizon by spin application 2,2,3, dissolved the coating fluid of the squalane dye compound shown in the following chemical formula (1) and dry in the 3-tetrafluoropropanol, the 2nd recording layer that thickness is about 80nm is set.The maximum absorption wavelength of the light absorption spectrogram of the 2nd recording layer is 607nm, and the absorbance under the maximum absorption wavelength (Abs) is 1.19.The pigment thickness is confirmed with section TEM image.The heat decomposition temperature of this pigment is 280 ℃.

[Chemical formula 1]

On the 2nd recording layer, again with Ar as sputter gas, by sputtering method the thick ZnS-SiC of about 105nm (8/2 ratio) is set, form inorganic protective layer, make the 2nd information substrate.

On the other hand, at the diameter with gathering sill relief pattern with groove depth 150nm, groove width (bottom width) 0.25 μ m, track pitch 0.74 μ m is that 120mm, thickness are on the surface of the 1st substrate made of the polycarbonate of 0.58mm, by being spin-coated on 2,2,3, dissolved the first shown in squalane dye compound shown in the above-mentioned chemical formula (1) and the following chemical formula (2) in the 3-tetrafluoropropanol Metallo-chelate is with the coating fluid of the potpourri of 7/3 weight ratio mixing, the 1st recording layer that thickness is about 50nm is set, thereon with Ar as sputter gas, form AgIn (about 99.5/0.5) reflection horizon that thickness is about 12nm by sputtering method, make the 1st information substrate.

[Chemical formula 2]

Then, with the information substrate of ultraviolet-curing adhesive (the KARAYAD DVD576 that Japanese chemical drug is made) applying the above-mentioned the 1st and the 2nd, the optical recording media of the 2 layers of structure of one side shown in the construction drawing 4D.After writing down DVD (8-16) signal under the condition of wavelength 657nm, NA:0.65, linear velocity 12.64m/s, 3.83m/s reproduces evaluation with linear velocity to the 2nd recording layer of above-mentioned optical recording media.The ODU1000 that evaluating apparatus uses パ Le ス テ Star Network company to make.

The waveform of recording impulse uses waveform shown in Figure 5, and the quiver value below measuring among the embodiment is to the dependence of recording power (W0).

	Line speed record (m/s)	Pc (mW)	Tc (T )	W1 (mW)	W1/ W0	W1/ W2	W1/ W3	W4/ W1	Pc/W4	Corresponding diagram
											Embodiment 1	12.64	0.75	2	23-27	1	1.2	1	0.03	1.0	Fig. 8,9
Embodiment 2	12.64	1	2	25	1	1.2	1	0.03	1.3	Fig. 8
											Embodiment 3	12.64	1.25	2	25	1	1.2	1	0.03	1.7	Fig. 8
Embodiment 4	12.64	1.5	2	23-27	1	1.2	1	0.03	2.0	Fig. 8,9
											Embodiment 5	12.64	1.75	2	26	1	1.2	1	0.03	2.3	Fig. 8
Embodiment 6	12.64	2	2	25	1	1.2	1	0.03	2.7	Fig. 8
											Embodiment 7	12.64	2.25	2	23-27	1	1.2	1	0.03	3.0	Fig. 8,9
Comparative example 1	12.64	3	2	25	1	1.2	1	0.03	4.0	Fig. 8
											Comparative example 2	12.64	0.1 below	2	23-27	1	1.2	1	0.03	0.14 below	Fig. 8,9
Embodiment 8	12.64	0.1 below	0	24-26	1	1.2	1	0.03	0.14 below	Figure 10
											Embodiment 9	12.64	0.75	0	24-26	1	1.2	1	0.03	1.0	Figure 11
Embodiment 10	12.64	1.5	0	24-26	1	1.2	1	0.03	2.0	Figure 12
											Embodiment 11	12.64	0.1 below	1	24-26	1	1.2	1	0.03	0.14 below	Figure 10
Embodiment 12	12.64	0.75	1	24-26	1	1.2	1	0.03	1.0	Figure 11
											Embodiment 13	12.64	1.5	1	24-26	1	1.2	1	0.03	2.0	Figure 12
Comparative example 3	12.64	0.1 below	2	24-26	1	1.2	1	0.03	0.14 below	Figure 10
											Embodiment 14	12.64	0.75	2	24-26	1	1.2	1	0.03	1.0	Figure 11
Embodiment 15	12.64	1.5	2	24-26	1	1.2	1	0.03	2.0	Figure 12

In Fig. 8, the quiver value when showing the W1=25mW of embodiment 1～7 and comparative example 1,2 is to obtain the good characteristic of quiver value at 1.0～3.0 o'clock at Pc/W4.Equally, figure 9 illustrates the characterization result of embodiment 1,4,7 and comparative example 2, is to obtain the good characteristic of quiver value at 1.0～3.0 o'clock at Pc/W4.And, in Figure 10～12, show the characterization result of embodiment 8～15 and comparative example 3, at Pc/W4 be 0.14 when following, Tc obtained the good characteristic of quiver value below the 1T.

Claims (6)

1. the recording method of a dye-based recordable optical recording medium is characterized in that,

Have on the recording layer that is formed at the pigment on the substrate with gathering sill, coming the shortest mark of record length with a pulsed light,

Under the pulse power below the pulse power of the shortest mark of above-mentioned length, coming record length with 1 pulsed light of the leading section of pulse and two within a certain period of time high outputizations in position of rearward end is the second short or longer mark,

Line speed record during above-mentioned each label record is that 12m/s is when above, in the rayed amount of the cooling pulse of above-mentioned pulse rearward end as Pc, the power of the irradiates light beyond the pulsed light that forms corresponding to mark is during as W4, Pc/W4 is the scope below 3.0 more than 1.0, perhaps Pc/W4 is under the situation of the scope below 0.14, and the irradiation time Tc of the cooling pulse after above-mentioned pulse applies is the length below 1 times of fundamental clock period T.

2. the recording method of the described dye-based recordable optical recording medium of claim 1, wherein, the rayed amount Pc that applies above-mentioned postimpulse cooling pulse is below the 0.1mW, this irradiation time Tc is controlled to be the length below 1 times of fundamental clock period T.

3. the recording method of the described dye-based recordable optical recording medium of claim 1, wherein in above-mentioned pulsed light record, above-mentioned gathering sill forms by swinging chute, the fundamental clock cycle during for T the frequency of this swing be the scope of 4T～96T.

4. the recording method of the described dye-based recordable optical recording medium of claim 1, wherein above-mentioned pulse light wavelength is 600～720nm.

5. the recording method of the described dye-based recordable optical recording medium of claim 1 wherein in above-mentioned pulsed light record, is 3.83 ± 0.03m/s with respect to the line speed record of signal.

6. the pen recorder of a dye-based recordable optical recording medium is characterized in that, possesses:

Have on the substrate of gathering sill the formation device that forms the recording layer that contains organic pigment,

With the 1st pen recorder of the shortest mark of 1 pulsed light record length on above-mentioned recording layer and

The 2nd pen recorder, described the 2nd pen recorder comes record length with 1 pulsed light of the leading section of pulse and two within a certain period of time high outputizations in position of rearward end under the pulse power below the pulse power of the shortest mark of above-mentioned length be the second short or longer mark, and

When above-mentioned each label record, the rayed amount of the cooling pulse that is provided with later in the pulse rearward end is as Pc, the power of the irradiates light beyond the pulsed light that forms corresponding to mark is during as W4, Pc/W4 is that 12m/s is the scope below 3.0 more than 1.0 when above at line speed record, perhaps Pc/W4 is under the situation of the scope below 0.14, and the irradiation time Tc that applies above-mentioned postimpulse cooling pulse is the length below 1 times of fundamental clock period T.

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