CN107767887A - A kind of holographic memory device based on dichroic reflective layer - Google Patents
A kind of holographic memory device based on dichroic reflective layer Download PDFInfo
- Publication number
- CN107767887A CN107767887A CN201711273944.6A CN201711273944A CN107767887A CN 107767887 A CN107767887 A CN 107767887A CN 201711273944 A CN201711273944 A CN 201711273944A CN 107767887 A CN107767887 A CN 107767887A
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- China
- Prior art keywords
- layer
- dichroic reflective
- reflective layer
- address
- memory device
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 101
- 239000011229 interlayer Substances 0.000 claims description 8
- 239000002861 polymer material Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000011232 storage material Substances 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24047—Substrates
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24062—Reflective layers
Landscapes
- Holo Graphy (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
The present invention discloses a kind of holographic memory device based on dichroic reflective layer, including CD, CD includes optic disc base board, the variable data layer of recording optical-information is provided with optic disc base board, address layer is disposed with from the bottom to top above variable data layer, dichroic reflective layer and recording layer, wherein dichroic reflective layer causes green glow all to reflect, and cause feux rouges through simultaneously arrival address layer, feux rouges arrival address layer, obtain address information, the problem of its storage material that can not be realized to different quality that can solve the problem that in the presence of prior art changes its storage density, the position that hologram image is formed on recording layer is determined by the servosignal of red laser, realize the storage density regulation of holographic optical disk, it is compatible up and down between CD different editions to realize, improve the sustainability that it is applied during rom update is regenerated.
Description
Technical field
The present invention relates to optical storage techniques field, and in particular to a kind of holographic memory device based on dichroic reflective layer.
Background technology
At present, in optical storage apparatus, the capacity of CD is nonadjustable, such as CD（650MB）, DVD（4.7GB）,
BD（25GB）Deng when the capacity of CD changes, there is the problem of must changing CD-disc read-write equipment.For this reason, it may be necessary to
A kind of storage device, solves the above mentioned problem in the presence of prior art.
The content of the invention
It is an object of the invention to provide a kind of holographic memory device based on dichroic reflective layer, to solve in the prior art
The problem of existing storage material that can not be realized to different quality changes its storage density.
To achieve the above object, the present invention provides a kind of holographic memory device based on dichroic reflective layer, including CD base
Plate, the variable data layer of recording optical-information is provided with optic disc base board, is set gradually from the bottom to top above variable data layer
There are address layer, dichroic reflective layer and recording layer, wherein dichroic reflective layer causes green glow all to reflect, and causes feux rouges to pass through and arrive
Up to address layer, feux rouges arrival address layer, address information is obtained.
Alternatively, dichroic reflective layer and address layer synthesize one layer of structure, to realize that green light reflection, feux rouges are saturating simultaneously
Cross simultaneously arrival address layer and obtain the function of address information.
Alternatively, the first interlayer is provided between address layer and dichroic reflective layer.
Alternatively, the second interlayer is provided between dichroic reflective layer and recording layer.
Alternatively, matcoveredn is set above recording layer.
Alternatively, address points are provided with variable data layer.
Alternatively, recording layer is arranged to polymer material layer.
Alternatively, laser includes the green (light) laser that emerging beam is green glow, and emerging beam is servo feux rouges
Red laser.
Alternatively, reflecting layer is to feux rouges to pass through, and feux rouges is incided on optic disc base board after passing through reflecting layer, by optic disc base board
On address points reflect back, the positional information of the address points of the feux rouges on optic disc base board is read out, according to address points
Interval determine that green holographic laser image is written to the position of recording layer；Dichroic reflective layer is reflection to green glow, and green light is not
Optic disc base board can be incided, is not disturbed by the address points on optic disc base board.
Alternatively, the position that hologram image is formed on recording layer is determined by the servosignal of red laser, realizes holographic optical
The storage density regulation of disk, it is compatible up and down between CD different editions to realize.
The invention has the advantages that：
The holographic memory device based on dichroic reflective layer of the present invention, it can solve the problem that can not realize pair in the presence of prior art
The problem of storage material of different quality changes its storage density, the position of hologram image is formed on recording layer by red laser
Servosignal determines, realizes the storage density regulation of holographic optical disk, compatible up and down between CD different editions to realize, improves
The sustainability that it is applied during rom update is regenerated.
Brief description of the drawings
Fig. 1 is the structural representation of the holographic memory device based on dichroic reflective layer of the present invention.
In figure, 1 is protective layer, and 2 be recording layer, and 3 be the first interlayer, and 4 be dichroic reflective layer, and 5 be the second interlayer, and 6 be light
Disc board, 7 be variable data layer, and 8 be address points, and 9 be hologram, and 10 be green laser, and 11 be red laser.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment
A kind of holographic memory device based on dichroic reflective layer 4, as shown in figure 1, including optic disc base board 6, on optic disc base board 6
The variable data layer 7 of recording optical-information is provided with, address layer is disposed with above variable data layer 7 from the bottom to top, divides
Color reflecting layer 4 and recording layer 2, wherein dichroic reflective layer 4 cause green glow all to reflect, and so that feux rouges passes through and arrival address
Layer, feux rouges arrival address layer, obtain address information.
Different colours light is selectively reflected or penetrated it can be seen that dichroic reflective layer 4 can be realized, is designed in holographic optical disk
In, by the use of red laser 11 as servo light, it is used to specify the writing position of the holographic light image of green laser 10 or blue laser.
Shown in Fig. 1,4 pairs of red light of dichroic reflective layer can penetrate, and red light reaches optic disc base board 6 after penetrating, and projects CD base
The back reflection of address points 8 on plate 6 is gone back, and the position of address points 8 is read out, and determines that green is complete according to the interval of address points 8
Breath laser image is written to the position of recording layer 2；As that can reflect, green light can not arrive the green optical hologram 9 of 4 pairs of dichroic reflective layer
Up to optic disc base board 6, it is impossible to the information of data address point 8 on optic disc base board 6 is read, also will not be by dot matrix on optic disc base board 6
Rough interference.
Preferably, dichroic reflective layer 4 and address layer synthesize one layer of structure, to realize green light reflection, feux rouges simultaneously
Through simultaneously arrival address layer and obtain the function of address information.
Preferably, the first interlayer 3 is provided between address layer and dichroic reflective layer 4.
Preferably, the second interlayer 5 is provided between dichroic reflective layer 4 and recording layer 2.
Preferably, matcoveredn 1 is set above recording layer 2.
Preferably, address points 8 are provided with variable data layer 7.
Preferably, recording layer 2 is arranged to polymer material layer.
Preferably, laser includes the green (light) laser that emerging beam is green glow, and emerging beam is servo feux rouges
Red laser.
Preferably, reflecting layer is to feux rouges to pass through, and feux rouges is incided on optic disc base board 6 after passing through reflecting layer, by CD base
Address points 8 on plate 6 are reflected back, and the positional information of the address points 8 of the feux rouges on optic disc base board 6 is read out, according to
The interval of address points 8 determines that green holographic laser image is written to the position of recording layer 2；4 pairs of green glow of dichroic reflective layer are reflection,
Green light can not incide optic disc base board 6, not disturbed by the address points 8 on optic disc base board 6.
Preferably, the position that the picture of hologram 9 is formed on recording layer 2 is determined by the servosignal of red laser 11, is realized complete
The storage density regulation of CD is ceased, it is compatible up and down between CD different editions to realize.
It should be noted that the holographic memory device based on dichroic reflective layer 4 of the present invention, is mainly carried out to said structure
Improve, other NM function, part and structures, when needed, can use can realize corresponding work(in the prior art
The part and structure of energy are implemented.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (10)
1. a kind of holographic memory device based on dichroic reflective layer, including optic disc base board（6）, it is characterised in that optic disc base board（6）
On be provided with the variable data layer of recording optical-information（7）, variable data layer（7）Above be disposed with address from the bottom to top
Layer, dichroic reflective layer（4）And recording layer（2）, wherein dichroic reflective layer（4）So that green glow all reflects, and feux rouges is passed through
And arrival address layer, feux rouges arrival address layer, obtain address information.
2. the holographic memory device as claimed in claim 1 based on dichroic reflective layer, it is characterised in that dichroic reflective layer（4）
One layer of structure is synthesized with address layer, to realize green light reflection, feux rouges simultaneously through simultaneously arrival address layer and obtain address
The function of information.
3. the holographic memory device as claimed in claim 1 based on dichroic reflective layer, it is characterised in that address layer and color separation are anti-
Penetrate layer（4）Between be provided with the first interlayer（3）.
4. the holographic memory device as claimed in claim 3 based on dichroic reflective layer, it is characterised in that dichroic reflective layer（4）
And recording layer（2）Between be provided with the second interlayer（5）.
5. the holographic memory device as claimed in claim 4 based on dichroic reflective layer, it is characterised in that recording layer（2）It is upper
Face sets matcoveredn（1）.
6. the holographic memory device based on dichroic reflective layer as any one of claim 1-5, it is characterised in that variable
Data Layer（7）On be provided with address points（8）.
7. the holographic memory device as claimed in claim 6 based on dichroic reflective layer, it is characterised in that recording layer（2）Set
For polymer material layer.
8. the holographic memory device as claimed in claim 7 based on dichroic reflective layer, it is characterised in that laser includes light extraction
Light beam is the green (light) laser of green glow, and the red laser that emerging beam is servo feux rouges.
9. the holographic memory device as claimed in claim 8 based on dichroic reflective layer, it is characterised in that reflecting layer is to feux rouges
Through feux rouges incides optic disc base board after passing through reflecting layer（6）On, by optic disc base board（6）On address points（8）Reflect back,
With by optic disc base board（6）On feux rouges address points（8）Positional information be read out, according to address points（8）Interval determine
Green holographic laser image is written to recording layer（2）Position；Dichroic reflective layer（4）It is reflection to green glow, green light can not enter
It is mapped to optic disc base board（6）, not by optic disc base board（6）On address points（8）Disturbed.
10. the holographic memory device as claimed in claim 9 based on dichroic reflective layer, it is characterised in that recording layer（2）Upper shape
Into hologram（9）The position of picture is by red laser（11）Servosignal determine, realize holographic optical disk storage density regulation, with
Realize the compatibility up and down between CD different editions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273944.6A CN107767887A (en) | 2017-12-06 | 2017-12-06 | A kind of holographic memory device based on dichroic reflective layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273944.6A CN107767887A (en) | 2017-12-06 | 2017-12-06 | A kind of holographic memory device based on dichroic reflective layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107767887A true CN107767887A (en) | 2018-03-06 |
Family
ID=61277756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711273944.6A Pending CN107767887A (en) | 2017-12-06 | 2017-12-06 | A kind of holographic memory device based on dichroic reflective layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107767887A (en) |
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| CN1774751A (en) * | 2004-03-09 | 2006-05-17 | 三星电子株式会社 | Optical recording medium |
| CN1819038A (en) * | 2005-02-11 | 2006-08-16 | 汤姆森特许公司 | Holographic disk medium with servo marks |
| CN1906681A (en) * | 2004-07-06 | 2007-01-31 | 三菱化学媒体株式会社 | Optical recording medium |
| CN1934626A (en) * | 2004-03-31 | 2007-03-21 | 索尼株式会社 | Hologram recording device, hologram reproduction device, hologram recording method, hologram reproduction method, and hologram recording medium |
| CN101149588A (en) * | 2006-09-20 | 2008-03-26 | 富士胶片株式会社 | Composition for holographic recording medium, holographic recording medium, and method for producing the same |
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| CN101783149A (en) * | 2009-01-16 | 2010-07-21 | 索尼公司 | Recording/reproduction method and hologram recording medium |
| CN207517357U (en) * | 2017-12-06 | 2018-06-19 | 苏州盤谷信息光学有限公司 | A kind of holographic memory device based on dichroic reflective layer |
-
2017
- 2017-12-06 CN CN201711273944.6A patent/CN107767887A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004265472A (en) * | 2003-02-06 | 2004-09-24 | Optware:Kk | Optical information recording medium |
| CN1774751A (en) * | 2004-03-09 | 2006-05-17 | 三星电子株式会社 | Optical recording medium |
| CN1934626A (en) * | 2004-03-31 | 2007-03-21 | 索尼株式会社 | Hologram recording device, hologram reproduction device, hologram recording method, hologram reproduction method, and hologram recording medium |
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| CN1819038A (en) * | 2005-02-11 | 2006-08-16 | 汤姆森特许公司 | Holographic disk medium with servo marks |
| CN101149588A (en) * | 2006-09-20 | 2008-03-26 | 富士胶片株式会社 | Composition for holographic recording medium, holographic recording medium, and method for producing the same |
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230517 Address after: Room 1206, Building 10, Zhonghai Huanyu Tianxia, No.1 Gaoxin Avenue, High tech Zone, Fuzhou City, Fujian Province, 350108 Applicant after: Tan Xiaodi Address before: 215000 Room 601, 7, 78 Ling Ling Road, hi tech Zone, Suzhou, Jiangsu. Applicant before: SUZHOU PANGU INFORMATION OPTICS CO.,LTD. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |
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| RJ01 | Rejection of invention patent application after publication |