CN1205511A - Optical disk with pattern and fabrication method thereof - Google Patents

Optical disk with pattern and fabrication method thereof Download PDF

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Publication number
CN1205511A
CN1205511A CN98103224A CN98103224A CN1205511A CN 1205511 A CN1205511 A CN 1205511A CN 98103224 A CN98103224 A CN 98103224A CN 98103224 A CN98103224 A CN 98103224A CN 1205511 A CN1205511 A CN 1205511A
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CN
China
Prior art keywords
transparent substrates
reflectance coating
data recording
recording area
mask
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Pending
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CN98103224A
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Chinese (zh)
Inventor
草深孝也
田泽玲子
清田健二
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to CN98103224A priority Critical patent/CN1205511A/en
Publication of CN1205511A publication Critical patent/CN1205511A/en
Pending legal-status Critical Current

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Abstract

On a data recording region, an aluminum reflective film is formed together with a reflective film forming a pattern on an outer circumferential side of the data recording region. Although aluminum identical to the material of the reflective film on the data recording region can be employed for the reflective film on the outer circumferential region, gold, titanium and the like can also be used. Therefore, an optical disk that has a unique pattern formed at an outer circumferential region that was not conventionally used can be fabricated at a low cost.

Description

The CD and the manufacture method thereof that have figure
The present invention relates to a kind of CD and manufacture method thereof, particularly relate to a kind of CD, it has figure on the excircle of data recording area, and makes the method for this CD.
Various types of CDs are provided now, as CD (CD), DVD (digital video disk), MO (magneto-optic) dish, and LD (laser disk).The CD dish can be standardized as the CD with 12cm diameter and 8cm diameter.
Fig. 1 is the planimetric map of the CD1 commonly used of 12cm diameter.Referring to Fig. 1, center pit 2 can be made in CD1 in the heart, in order to auxiliary drive.The data recording area 3 of 8cm diameter can be arranged on the inner periphery of CD1.Many pits can be formed on the data recording area 3 according to data.Data recording area 3 is coated with reflectance coating.Be generally water white on the outer circumferential area 4 of CD 1.CD 1 can become a product by label is attached on the plane relative with the anaclasis plane.
Because CD 1 commonly used has water white as mentioned above outer circumferential area 4, thus it can not exert an influence to the general user, can be and attractive as the commercially available prod yet.
Purpose of the present invention just provides a kind of economic CD and manufacture method thereof that has figure.
According to one aspect of the present invention, CD comprises transparent substrates and reflectance coating.Transparent substrates has data recording area, and wherein data are recorded on its inner periphery.Reflectance coating has the second area that is formed with figure on first area made on the data recording area of transparent substrates and the outer circumferential sides at the data recording area of transparent substrates.
Having the CD that use forms figure at formed reflectance coating on the data recording area and on outer circumferential area can make with low cost.
According to a second aspect of the present invention, CD comprises transparent substrates, first reflectance coating and second reflectance coating.Transparent substrates has data recording area, and wherein data can be recorded on its inner periphery.First reflectance coating can be formed on the data recording area of transparent substrates.Second reflectance coating can be formed on certain zone on the outer circumferential sides of data recording area of transparent substrates, and forms certain figure.Preferably, second reflectance coating has the color that is different from the first reflectance coating color.
By this aspect, the CD with figure on transparent outer circumferential area can be made with low cost.
According to one side more of the present invention, a kind of method of making CD, wherein CD comprises transparent substrates, this substrate has data recording area, data can be recorded on its excircle, described method comprises the following steps: at the data recording area of transparent substrates and is positioned on the zone beyond the zone on the data recording area outer circumferential sides to apply mask, and forms certain figure; Form reflectance coating applying on the transparent substrates of mask; With the mask of removing on the transparent substrates.
According to above-mentioned manufacture method, on the data recording film, form in the step of reflectance coating, the reflectance coating that forms figure is provided on the outer circumferential sides of data recording area.Therefore, the CD that has figure can be made with low cost, can not increase manufacturing step.
According to also aspect of the present invention, a kind of method of making CD, wherein CD comprises transparent substrates, this substrate has data recording area, wherein on the circumference, described method comprises the following steps: to apply first mask on the zone beyond the data recording area of transparent substrates data recording within it; On the transparent substrates that is applied with first mask, form first reflectance coating; Remove first mask from transparent substrates, on the zone on the outer circumferential sides of the data recording area that is positioned at transparent substrates, apply second mask, and get rid of the zone that forms figure; On the transparent substrates that applies second mask, form second reflectance coating; With remove second mask from transparent substrates.Preferably, second reflectance coating has the color that is different from first reflectance coating.
In above-mentioned manufacture method, on data recording area, form in the same steps as of reflectance coating, the reflectance coating that forms figure is provided on the outer circumferential sides of data recording area.Therefore, the CD that has figure can be made with low cost.Because the reflectance coating color that forms figure is different from the color of reflectance coating on data recording area, therefore can make more colorful CD with low cost.
By below in conjunction with the accompanying drawing detailed description of the present invention, will make above-mentioned purpose of the present invention and other purpose, feature, each side and advantage clearer.
Brief description of the drawings.
Fig. 1 is the planimetric map of the CD commonly used looked by the light plane of incidence;
Fig. 2 is the disc plane figure according to first embodiment of the invention that is looked by the light plane of incidence;
Fig. 3 is the sectional view of Fig. 2 CD of cutting of III-III along the line;
Fig. 4 A is the planimetric map of Fig. 2 CD transparent substrates of being looked by the signal record plane;
Fig. 4 B is a planimetric map, and it is illustrated in the step that applies mask on Fig. 4 A transparent substrates;
Fig. 4 C is a planimetric map, and its expression is the step of the step formation reflectance coating of Fig. 4 B then;
Fig. 4 D is a planimetric map, the step that the step that Fig. 4 C is followed in its expression is removed mask;
Fig. 5 A is the sectional view that the line VA-VA along Fig. 4 A is cut;
Fig. 5 B is the sectional view that the line VB-VB along Fig. 4 B is cut;
Fig. 5 C is the sectional view that the line VC-VC along Fig. 4 C is cut;
Fig. 5 D is the sectional view that the line VD-VD along Fig. 4 D is cut;
Fig. 5 E is a sectional view, and its expression is the step of the step formation diaphragm of Fig. 5 D then;
Fig. 6 is the disc plane figure according to second embodiment of the invention that is looked by the light plane of incidence;
Fig. 7 is the sectional view of Fig. 6 CD of cutting of VII-VII along the line;
Fig. 8 is the planimetric map that has Fig. 6 CD of the data recording area that is illustrated by the broken lines;
Fig. 9 is the disc plane figure according to third embodiment of the invention that is looked by the light plane of incidence;
Figure 10 is the sectional view of Fig. 9 CD of cutting of X-X along the line;
Figure 11 A is the disc plane figure of Fig. 9 and 10, and it is illustrated in and follows the step that step shown in Fig. 4 B applies mask in its manufacture method;
Figure 11 B is a planimetric map, and its expression is the step of the step formation reflectance coating of Figure 11 A then;
Figure 11 C is a planimetric map, the step that the step that Figure 11 B is followed in its expression is removed mask;
Figure 11 D is a planimetric map, and the step that Figure 11 C is followed in its expression applies the step of another mask;
Figure 11 E is a planimetric map, and the step that Figure 11 D is followed in its expression forms the step of another reflectance coating;
Figure 11 F is a planimetric map, the step that the step that Figure 11 E is followed in its expression is removed mask;
Figure 11 G is a planimetric map, and the step that Figure 11 F is followed in its expression applies the step of mask again;
Figure 11 H is a planimetric map, and the step that Figure 11 G is followed in its expression forms the step of another reflectance coating;
Figure 11 I is a planimetric map, the step that the step that Figure 11 H is followed in its expression is removed mask;
Figure 12 A is the sectional view that the line XIIA-XIIA along Figure 11 A is cut;
Figure 12 B is the sectional view that the line XIIB-XIIB along Figure 11 B is cut;
Figure 12 C is the sectional view that the line XIIC-XIIC along Figure 11 C is cut;
Figure 12 D is the sectional view that the line XIID-XIID along Figure 11 D is cut;
Figure 12 E is the sectional view that the line XIIE-XIIE along Figure 11 E is cut;
Figure 12 F is the sectional view that the line XIIF-XIIF along Figure 11 F is cut;
Figure 12 G is the sectional view that the line XIIG-XIIG along Figure 11 G is cut;
Figure 12 H is the sectional view that the line XIIH-XIIH along Figure 11 H is cut;
Figure 12 I is the sectional view that the line XIII-XIII along Figure 11 I is cut;
Figure 13 is the disc plane figure according to fourth embodiment of the invention that is looked by the light plane of incidence;
Figure 14 is the sectional view of Figure 13 CD of cutting of XIV-XIV along the line;
Figure 15 A is a planimetric map, and it is illustrated in according to fifth embodiment of the invention and makes in the CD process, and then the step of Figure 11 C forms the step of transparent protective film;
Figure 15 B is a planimetric map, and its expression is the step of the step printing figures of Figure 15 A then;
Figure 16 A is the sectional view that the line XIVA-XIVA along Figure 15 A is cut;
Figure 16 B is to be the sectional view that line XIVB-XIVB is cut along Figure 15 B.
The description of preferred embodiment.
Below with reference to accompanying drawings embodiments of the invention are described in detail.In the accompanying drawings, identical or appropriate section has identical reference number represents that its description will no longer repeat.
First embodiment
Referring to Fig. 2 and 3; CD 1 according to first embodiment of the invention comprises circular transparent substrates 5, and it is made by polycarbonate, glass or analog, annular reflection film 3; it is made of aluminum; star reflectance coating 7, it is made of aluminum, transparent protective film 8; its makes relative with the light plane of incidence; in order to cover whole signal record plane 5A and label 9, it is applied on the diaphragm 8.
Transparent substrates 5 be included on the inner periphery of record data annular data recording area 6 and at supercentral center pit 2, in order to auxiliary drive.Many pits are formed on the data recording area 6 with one heart or spirally according to data.Reflectance coating 3 is formed on the signal record plane 5A of transparent substrates 5, so that cover data posting field 6 entirely.Reflectance coating 7 is formed on the signal record plane 5A of the outer circumferential area 4 on the outer circumferential sides that is positioned at data recording area 6.Reflectance coating 7 forms star graphic.
Here, four reflectance coatings 7 form at intervals with reflectance coating 3.Because reflectance coating 3 and 7 is each made of aluminum, so they all have identical silver color.
Reflectance coating 7 is not limited to figure shown in Figure 2.For example, reflectance coating 7 can form the figure with similar character.The reflectance coating of four crescent figures can be inserted between four star reflectance coatings 7 in addition.Reflectance coating 7 can form many figures according to the application of CD.
The manufacture method of above-mentioned CD 1 is described with reference to Fig. 4 A-4D and 5A-5E below.
Shown in Fig. 4 A and 5A, can prepare transparent substrates 5 with center pit 2 and data recording area 6.
Shown in Fig. 4 B and 5B, the zone (zone of the point that scatters among Fig. 4 B) beyond data recording area 6 and be arranged on data recording area 6 outer circumferential sides and form apply on the zone (open region of Fig. 4 B) of figure mask 10 with outside mask 11.Interior mask 10 has covered the inside, central area of data recording area 6.Outer mask 11 has covered the excircle outside of data recording area 6.It should be noted that outer mask 11 does not cover the zone that forms star graphic, because outer mask 11 has four star-shaped openings 12.
Shown in Fig. 4 C and 5C, reflectance coating 13 is to be formed on the transparent substrates 5 that has applied interior and outer mask 10 and 11 by gas deposition.Because transparent substrates 5 parts have applied mask, as mentioned above, so reflectance coating 13 can directly join with the zone that does not add mask.
Referring to Fig. 4 D and 5D, interior and outer mask 10 and 11 can be removed from transparent substrates 5.As a result, formed reflectance coating 13 parts can keep on data recording area 6 becomes reflectance coating 3, and formed reflectance coating 13 parts can keep and become reflectance coating 7 on corresponding to the star graphic zone.Therefore, reflectance coating 3 is positioned on the data recording area 6, and reflectance coating 7 is positioned on the outer circumferential area 4 that forms star graphic.
Referring to Fig. 5 E, transparent protective film 8 can be formed on the transparent substrates 5 that is formed with reflectance coating 3 and 7.
Then, label 9 is fixed on the diaphragm 8, and finishes CD 1, as shown in Figure 3.
According to the first embodiment of the present invention, be that star graphic is added on the obsolete outer circumferential area 4 of optical discs in general.Therefore, CD 1 improves becomes attractive product.The quantity of treatment step is formed on the data recording area 6 with reflectance coating 3 owing to form the reflectance coating 7 of figure, so will can not increase.Thus, CD 1 can be made very cheaply.
Second embodiment
According to the second embodiment of the invention shown in Fig. 6 and 7, CD 1 comprises that one deck forms the reflectance coating 14 of star graphic, its whole above-mentioned reflectance coating 3 and 7 of having replaced.The formation of the reflectance coating 14 of second embodiment has covered the entire portion of data recording area 6, and extends to outer circumferential area 4, as shown in Figure 8.Part on outer circumferential area 4 forms figure.
Though forming the reflectance coating of figure can be as first embodiment and reflectance coating 3 compartment of terrains on data recording area 6, the reflectance coating that forms figure still can join as the reflectance coating on second embodiment and the data recording area 6.
In the present embodiment, reflectance coating 14 whole formation star graphics.Replacedly, also can form other figures, as snowflake crystallization shape, character shape etc.
The 3rd embodiment
According to the third embodiment of the invention shown in Fig. 9 and 10, CD 1 comprises that two reflectance coatings 15 and two reflectance coatings 16 are to replace aluminium mirror coating shown in Figure 27.Therefore, reflectance coating 3,15 with 16 all have mutually different color.As a result, more colorful according to the CD of CD 1 to the first embodiment of the 3rd embodiment.
With reference to Figure 11 A-11I and 12A-12I the method that present embodiment is made CD 1 is described below.
After preparation has the transparent substrates 5 of data recording area 6 shown in Fig. 4 A and 5A, on the zone beyond the data recording area 6, applying mask 10 with outside mask 11, shown in Figure 11 A and 12A.Interior mask 10 has covered the central area that is positioned at data recording area 6.Outer mask 11 has covered the outer circumferential area 4 that is positioned at outside the data recording area 6.Outer mask 11 does not have opening shown in Fig. 4 B.
Referring to Figure 11 B and 12B, aluminium mirror coating 13 can be formed on the transparent substrates 5 that has applied interior and outer mask 10 and 11 by gas deposition.Therefore, reflectance coating 13 forms and directly contacts with the data recording area 6 that does not add mask.
Referring to Figure 11 C and 12C, by mask in removing on the transparent substrates 5 10 and outer mask 11.As a result, only 13 reservations of the reflectance coating on 13 zones of the reflectance coating on the data recording area 6 rather than transparent substrates 5 become reflectance coating 3.Therefore, reflectance coating can not be formed on the outer circumferential area 4.
Referring to Figure 11 D and 12D, on the transparent substrates 5 that is formed with reflectance coating 3, apply mask 17.This mask 17 has two star-shaped openings 18.These openings 18 are positioned at the outer circumferential area 4 of transparent substrates 5 and are forming on the zone of figure.Therefore, form zone in addition, this graphics field and be applied in mask.
Referring to Figure 11 E and 12E, golden reflectance coating 19 can be formed on the transparent substrates 5 that has applied mask 17 by gas deposition.Owing to form on the zone of figure and do not apply mask, thus reflectance coating 19 can be directly and exposed region join.
Referring to Figure 11 F and 12F, mask 17 can be by removing on the transparent substrates 5.As a result, only be positioned at that reflectance coating 19 parts on the zone that forms figure keep rather than the reflectance coating 19 of whole formation on transparent substrates 5.
Referring to Figure 11 G and 12G, mask 17 is applied on the transparent substrates 5 that is formed with hyaline membrane 3 and 15 again, it provides two openings 18, and this opening 18 differs 90 ° with the opening of Figure 11 D.
Referring to Figure 11 H and 12H, on the transparent substrates 5 that is applied with mask 17, form titanium reflectance coating 20.Owing to do not add mask on the zone of formation star graphic, so reflectance coating 20 can directly contact with its exposed region.
Referring to Figure 11 I and 12I, mask 17 can be removed from transparent substrates 5.As a result, only be positioned at reflectance coating 20 parts that form on the star graphic zone and keep, rather than on transparent substrates 5 formed reflectance coating 20.Therefore, aluminium mirror coating 3 forms the golden reflectance coating 15 of star graphic and the titanium reflectance coating 16 of formation star graphic and can be positioned on the transparent substrates 5.
Be similar to the step of Fig. 5 E,, label 9 can be bonded on the diaphragm 8, as shown in figure 10 along with the formation of transparent protective film 8.Finish CD 1 thus.
According to the third embodiment of the present invention, the CD 1 with three kinds of different colours can be made with low cost.
Though gold and titanium can be used for reflectance coating 15 and 16 respectively in the present embodiment to form figure, can also use aluminium other metal in addition, as copper, nickel, what he can adopt the metal of gas deposition for antimony, magnesium and thousand.Also have, also can use metal plastics in addition.Have, figure can directly be printed again, to replace forming by gas deposition the reflectance coating of figure.
In the present embodiment, the figure of two kinds of colors can provide by twice mask of conversion.Three kinds of colors and above figure can provide by conversion three times and above mask.
The 4th embodiment
Compare with CD shown in Figure 6, wherein 14 of reflectance coatings are made of aluminum on data recording area 6 and outer circumferential area 4, and according to the CD 1 of fourth embodiment of the invention have formed aluminium mirror coating 3 on the data recording area 6 and on outer circumferential area 4 formed golden reflectance coating 21.As a result, this CD 1 has the color of two kinds of patterns.
The 5th embodiment
Compare with above-mentioned first to fourth embodiment, the reflectance coating that wherein forms figure provides by gas deposition, and the CD of the 5th embodiment has by the formed figure of serigraphy.
In order to make this CD, then on the data recording area 6 of transparent substrates 5, form aluminium mirror coating by gas deposition shown in Figure 11 C, form transparent protective film 8, shown in Figure 15 A and 16A.
Referring to Figure 15 B and 16B, the film 22A-22D that forms star graphic can be formed on the transparent protective film 8 and on the outer circumferential area 4 on data recording area 6 outer circumferential sides by serigraphy etc.
In this 5th embodiment, figure can be printed.Therefore, have the CD of polychrome figure, promptly silver-colored reflectance coating 3, red film 22A, blue film 22B, yellow film 22C and partial veil 22D can make with low cost.
In the present embodiment, reflectance coating can form by gas deposition.Yet its formation is not limited to this method, for example can form by the CVD method.In the present embodiment, mask can be applied on the transparent substrates.In addition, mask can also be applied on the transparent substrates by photoetching process.
Although the present invention is described in detail and illustrates, be appreciated that it in order to illustrate and to give an example, it is not as limitation of the present invention, and the spirit and scope of the present invention will only be limited by follow-up claim.

Claims (14)

1, a kind of CD, it comprises:
Transparent substrates with data recording area, wherein data can be recorded on its inner periphery and
Reflectance coating, the second area that it is included in formed first area on the data recording area of described transparent substrates and forms figure on the certain zone on the outer circumferential sides of described transparent substrates data recording area.
2, a kind of CD, it comprises:
Transparent substrates with data recording area, wherein data can be recorded on its inner periphery,
Be formed on the described transparent substrates data recording area first reflectance coating and
On the certain zone on the outer circumferential sides of described transparent substrates data recording area, form second reflectance coating of figure.
3, according to the CD of claim 2, wherein said second reflectance coating can join with described first reflectance coating.
4, according to the CD of claim 2, wherein said second reflectance coating and described first reflectance coating are separately.
5, according to the CD of claim 2, wherein said second reflectance coating has the color that is different from described first reflectance coating.
6, according to the CD of claim 2, it further is included in the 3rd reflectance coating that forms figure on certain zone on the outer circumferential sides of described transparent substrates data recording area.
7, according to the CD of claim 6, wherein said the 3rd reflectance coating has the color that is different from described first and second reflectance coatings.
8, a kind of CD, it comprises:
Transparent substrates with data recording area, wherein data can be recorded on its inner periphery,
Be formed on the reflectance coating on the data recording area of described transparent substrates,
Be formed on the certain zone on the outer circumferential sides of described transparent substrates data recording area transparent protective film and
Be printed on the described transparent protective film and form the film of figure.
9, a kind of manufacture method of CD, wherein this CD comprises the transparent substrates with data recording area, and wherein data can be recorded on its inner periphery, and the manufacture method of described CD comprises the following steps:
At the data recording area that removes described transparent substrates and be positioned on the zone on the described data recording area outer circumferential sides and apply mask, and form figure,
Be applied with form on the transparent substrates of described mask reflectance coating and
Remove described mask from described transparent substrates.
10, a kind of manufacture method of CD, wherein this CD comprises the transparent substrates with data recording area, and wherein data can be recorded on its inner periphery, and the manufacture method of described CD comprises the following steps:
On the zone beyond the data recording area of described transparent substrates, apply first mask,
Be applied with formation first reflectance coating on the described transparent substrates of described first mask,
Remove described first mask from described transparent substrates,
On the zone beyond the zone on the outer circumferential sides that is positioned at described transparent substrates data recording area, apply second mask, and form figure,
Be applied with on the described transparent substrates of described second mask form second reflectance coating and
Remove described second mask from described transparent substrates.
11, according to the optic disc producing mehtod of claim 10, wherein said second reflectance coating has the color that is different from described first reflectance coating.
12, according to the optic disc producing mehtod of claim 10, it further comprises the following steps:
On the zone beyond the zone on the outer circumferential sides that is positioned at described transparent substrates data recording area, apply the 3rd mask, and form figure,
Be applied with on the described transparent substrates of described the 3rd mask form the 3rd reflectance coating and
Remove described the 3rd mask from described transparent substrates.
13, according to the optic disc producing mehtod of claim 12, wherein said the 3rd reflectance coating has and the different color of described first and second reflectance coatings.
14, a kind of manufacture method of CD, wherein this CD comprises the transparent substrates with data recording area, and wherein data can be recorded on its inner periphery, and the manufacture method of described CD comprises the following steps:
On the zone beyond the data recording area of described transparent substrates, apply mask,
Form reflectance coating being applied with on the described transparent substrates of described mask,
Remove described mask from described transparent substrates,
Be formed with form on the described transparent substrates of described reflectance coating transparent protective film and
At printing figures on the described transparent protective film and on the outer circumferential sides of described transparent substrates data recording area.
CN98103224A 1997-07-09 1998-07-09 Optical disk with pattern and fabrication method thereof Pending CN1205511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN98103224A CN1205511A (en) 1997-07-09 1998-07-09 Optical disk with pattern and fabrication method thereof

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP183727/97 1997-07-09
JP225121/97 1997-08-21
CN98103224A CN1205511A (en) 1997-07-09 1998-07-09 Optical disk with pattern and fabrication method thereof

Publications (1)

Publication Number Publication Date
CN1205511A true CN1205511A (en) 1999-01-20

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Application Number Title Priority Date Filing Date
CN98103224A Pending CN1205511A (en) 1997-07-09 1998-07-09 Optical disk with pattern and fabrication method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001073778A1 (en) * 2000-03-29 2001-10-04 Goldsense Laser Av Production Limited An optical disk with a pattern and its manufacturing methods
CN1327415C (en) * 2002-04-22 2007-07-18 索尼株式会社 Optical recording medium, manufacturing method thereof, optical recording method, optical reproduction method, optical recording device, optical reproduction device and optical recording/reproduction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001073778A1 (en) * 2000-03-29 2001-10-04 Goldsense Laser Av Production Limited An optical disk with a pattern and its manufacturing methods
CN1327415C (en) * 2002-04-22 2007-07-18 索尼株式会社 Optical recording medium, manufacturing method thereof, optical recording method, optical reproduction method, optical recording device, optical reproduction device and optical recording/reproduction

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