JPS60195747A - Optical information recording medium - Google Patents
Optical information recording mediumInfo
- Publication number
- JPS60195747A JPS60195747A JP59051679A JP5167984A JPS60195747A JP S60195747 A JPS60195747 A JP S60195747A JP 59051679 A JP59051679 A JP 59051679A JP 5167984 A JP5167984 A JP 5167984A JP S60195747 A JPS60195747 A JP S60195747A
- Authority
- JP
- Japan
- Prior art keywords
- film
- reflective film
- reflecting film
- optical information
- information recording
- 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.)
- Pending
Links
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
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
- G11B7/259—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on silver
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、光ビームによシ情報が記録され２光吸収性
記鍮膜とそれを反射すえ反射膜からなる光情報記録媒体
に関す２ものであえ。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical information recording medium in which information is recorded by a light beam and is composed of a two-light absorbing recording film and a reflective film that reflects the light beam.
従来提案されていえ光学情報記録媒体は、基板（アクリ
ル、ガラスなど）上に反射膜（銀、アルミニウムなど）
を被着させ、この上に光吸収性記録膜（染料など）全被
着させた２層膜とすえか、この場合、反射率の高い反射
膜は熱伝導率も高く、この為ビットが横に広が９大きく
なりビットのエツジが乱れ易かった。この為基板（ガラ
ス、アクリルなど）上に反射膜（銀、アルミニウムなど
）を被着させ、この上に断熱層として二酸化珪素の透明
層を被着させ、さらにその上に光吸収性記録膜（染料な
ど〕を被着させて３層膜とすることが考えられていえか
、一般に光ビームの焦点は反射膜面上に集光すえように
なされているので、記碌膜には焦点が合わず、ビットが
不鮮明になりやすい０
本発明はこの様な欠点全改良し、反射率が高く、かつ熱
伝導率の低い反射膜を有する光情報記碌盤を提供するこ
とを目的としてなされたもので、基盤に高反射率の第１
反射膜と、熱伝導率の低く、光吸収の少ない第２反射膜
との複合反射膜を被着させ、さらにその上に光ビームに
より情報金記碌す２光吸収性記録膜層を般けたものであ
え。Optical information recording media, which have been proposed in the past, consist of a reflective film (silver, aluminum, etc.) on a substrate (acrylic, glass, etc.).
In this case, the reflective film with high reflectance also has high thermal conductivity, so that the bits are It spread to 9 and the edges of the bit were easily disturbed. For this purpose, a reflective film (silver, aluminum, etc.) is deposited on a substrate (glass, acrylic, etc.), a transparent layer of silicon dioxide is deposited on top of this as a heat insulating layer, and a light-absorbing recording film ( It may be possible to create a three-layer film by depositing dye, etc., but since the light beam is generally focused on the reflective film surface, the recording film is not focused. The purpose of the present invention is to overcome all of these drawbacks and provide an optical information recording board having a reflective film with high reflectance and low thermal conductivity. So, the first layer with high reflectivity is used as the base.
A composite reflective film consisting of a reflective film and a second reflective film with low thermal conductivity and low light absorption is deposited, and on top of that is a two-light absorbing recording film layer that records information using a light beam. It's something.
以下、この発明の実施Ｍを図によって説明する。Hereinafter, implementation M of the present invention will be explained with reference to the drawings.
図はこの発明による光情報記鍔盤の実施例の縦断面図を
示す。≠４図において基盤ｌに銀反射膜２ｔ−破ｍし、
該銀反射膜２上にアンチモンセレン（Ｓｂ、Ｓｓ、 ）
又は三硫化アンチモン（ｓｂ、ｓ、 ）の反射膜３を被
着して複合反射膜とすｚ０該複合反射膜は真空蒸着法で
作製すｚｏこの上に色素記録膜４をスピナーで被着すふ
。ここで銀反射膜２の厚さハ２００〜４００ Ａ程度で
、アンチモンセレン又は三硫化アンチモン反射膜３の厚
さは１００〜３００ Ｘとし、この組み合せによゐ複合
反射膜面で、８３０ｎｍのレーザービームに対して反射
率９０−以上であった。優た色素記録膜４を被着させ九
状態での反射率が４０−程度に々之ように色素記録膜４
の厚さを制御すｚ０５はレーザビームの入射方向であえ
。The figure shows a longitudinal sectional view of an embodiment of the optical information recording flange according to the present invention. ≠ In Figure 4, the silver reflective film 2t-m is broken on the substrate l,
Antimony selenium (Sb, Ss, ) on the silver reflective film 2
Alternatively, a reflective film 3 of antimony trisulfide (sb, s, debt. Here, the thickness of the silver reflective film 2 is about 200 to 400 A, and the thickness of the antimony selenium or antimony trisulfide reflective film 3 is about 100 to 300 A, and with this combination, the composite reflective film surface can be used for laser beams of 830 nm. The reflectance for the beam was 90- or higher. The dye recording film 4 is coated with an excellent dye recording film 4 so that the reflectance in nine states is about 40-.
z05 is the direction of incidence of the laser beam.
以上の様な構成において、反射膜３にアンチモンセレン
を用いた場合、この物質は比較的熱伝導率が低く、反射
率は上記のアンチモンセレン反射膜の厚さでは５０チ程
度であえ。又アンチモンセレン膜は８３０ｎｍの光の波
長で光吸収率が５０チ程度でｆ！ｌＩ４ので、大部分の
元は吸収されこことなく透過して下層の銀反射膜２によ
シ反射されて戻って来る０従って上述の様に複合反射膜
としての総合反射率は９０チ以上となｚ０又第２反射膜
に三硫化アンチモン管用いた場合も相様でお底が、この
反射膜は８３０ ｎｍの光の波長において光の吸収率が
ほとんど０でＴｏ石の〒反射効率はさらに良くかる。（
因ミにゲルマニウムｊＩＦｉ上記の厚さで光吸収率は１
３チもあえ。）更にアンチモンセレン又は三硫化アンチ
モン反射膜は熱伝導率が低いので周辺への熱のもれが少
なく従ってビットの周辺の乱れが少く形の良いピッ）？
形成すえことが出来ｌｏｔ九色素記録［４の直ぐ下層に
断熱効果のある反射膜が形成されていえので、光ビーム
の焦点は色素記録膜４の下面に結ばれ、従って記録膜に
ビラトラ明瞭に焼き抜くことがで！え。In the above structure, when antimony selenium is used for the reflective film 3, this material has relatively low thermal conductivity, and the reflectance may be about 50 inches for the thickness of the antimony selenium reflective film. Also, the antimony selenium film has a light absorption rate of about 50 cm at a wavelength of 830 nm, which is f! Since lI4, most of the elements are absorbed, transmitted slightly, and reflected by the lower layer silver reflective film 2 and returned. Therefore, as mentioned above, the total reflectance as a composite reflective film is 90 cm or more. The situation is the same when antimony trisulfide tubes are used as the second reflective film, but this reflective film has almost 0 light absorption at a wavelength of 830 nm, and the reflection efficiency of the To stone is even better. Karu. (
Incidentally, the light absorption rate of germanium jIFi is 1 at the above thickness.
3 chi too. ) In addition, the antimony selenium or antimony trisulfide reflective film has low thermal conductivity, so there is less heat leakage to the surrounding area, resulting in less disturbance around the bit and a better shape.
Since a reflective film with a heat insulating effect is formed immediately below the dye recording film 4, the focus of the light beam is focused on the lower surface of the dye recording film 4, and therefore the recording film is clearly illuminated. You can bake it out! picture.
なお丙においては基板１は記録反射Ｍ２の下にあ２が、
これと反対に基板１が記録１！Ｉ４の上に来る様にして
もよいことはもち論であ７−０以上記述したように、こ
の発明によ２情報記録盤においては、基盤上に反射率の
高い反射膜と熱伝導率の低い反射膜とによシなる複合反
射Ｓｔ−形成しさらにその上に光吸収性記録膜を被着さ
せたので、記ｉ膜の下層が熱伝導率の低い物質で断熱材
となり、しかも反射膜であるので光ビームの焦点管容易
に光吸収性記録膜の下面に結ばせることが出来、ビット
の形成を良好にすえことが出来こ効果がある。In addition, in C, the substrate 1 is located below the recording reflection M2,
On the contrary, board 1 records 1! It is of course possible to place it above I4, but as described above, in the two-information recording disc according to the present invention, a reflective film with high reflectance and a high thermal conductivity film are provided on the base. By forming a composite reflective film with a low reflective film and then depositing a light-absorbing recording film on top of it, the lower layer of the recording film is made of a material with low thermal conductivity and serves as a heat insulating material. Therefore, the focal tube of the light beam can be easily connected to the lower surface of the light-absorbing recording film, and the formation of bits can be satisfactorily achieved.
図は本発明の情報記録媒体の断面図でに。 １・・・基板 ２・壷・第１反射膜層 The figure is a cross-sectional view of the information recording medium of the present invention. 1...Substrate 2.Curn/first reflective film layer
Claims (1)
録媒体において、上記反射膜が８００〜８７０ｎｍの波
長の光において反射率９０チ以上の第１反射膜と８０ト
８７０ ｎｍの波長の光において光吸収がなく該第１の
反射膜よりも熱伝導率の小なと第２反射膜とからなえ複
合反射膜とし、上記第２反射膜上に上記光吸収性記録膜
全形成したことｔ−特徴とすえ光情報記録媒体。In an optical recording medium coated with a reflective film and a light-absorbing recording film as a base, the reflective film has a first reflective film having a reflectance of 90 or more for light with a wavelength of 800 to 870 nm and a wavelength of 80 to 870 nm. A composite reflective film is formed of a second reflective film that does not absorb light in the light and has a lower thermal conductivity than the first reflective film, and the light-absorbing recording film is entirely formed on the second reflective film. What I did - Features and features of optical information recording media.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59051679A JPS60195747A (en) | 1984-03-17 | 1984-03-17 | Optical information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59051679A JPS60195747A (en) | 1984-03-17 | 1984-03-17 | Optical information recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60195747A true JPS60195747A (en) | 1985-10-04 |
Family
ID=12893566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59051679A Pending JPS60195747A (en) | 1984-03-17 | 1984-03-17 | Optical information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60195747A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0233034A2 (en) * | 1986-01-31 | 1987-08-19 | Sharp Kabushiki Kaisha | Optical memory element |
| JPH02252144A (en) * | 1989-03-27 | 1990-10-09 | Mitsui Toatsu Chem Inc | Optical recording medium |
| WO2007083674A1 (en) * | 2006-01-18 | 2007-07-26 | Mitsubishi Kagaku Media Co., Ltd. | Optical recording medium |
| JP2007261670A (en) * | 2006-03-29 | 2007-10-11 | Dainippon Printing Co Ltd | One-touch opening/closing container |
-
1984
- 1984-03-17 JP JP59051679A patent/JPS60195747A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0233034A2 (en) * | 1986-01-31 | 1987-08-19 | Sharp Kabushiki Kaisha | Optical memory element |
| US4956243A (en) * | 1986-01-31 | 1990-09-11 | Sharp Kabushiki Kaisha | Optical memory element |
| JPH02252144A (en) * | 1989-03-27 | 1990-10-09 | Mitsui Toatsu Chem Inc | Optical recording medium |
| WO2007083674A1 (en) * | 2006-01-18 | 2007-07-26 | Mitsubishi Kagaku Media Co., Ltd. | Optical recording medium |
| US7910192B2 (en) | 2006-01-18 | 2011-03-22 | Mitsubishi Kagaku Media Co., Ltd. | Optical recording medium |
| US8158234B2 (en) | 2006-01-18 | 2012-04-17 | Mitsubishi Kagaku Media Co., Ltd. | Optical recording medium |
| JP2007261670A (en) * | 2006-03-29 | 2007-10-11 | Dainippon Printing Co Ltd | One-touch opening/closing container |
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