JPS60212843A - Recording stylus of high-density recording device - Google Patents
Recording stylus of high-density recording deviceInfo
- Publication number
- JPS60212843A JPS60212843A JP59068634A JP6863484A JPS60212843A JP S60212843 A JPS60212843 A JP S60212843A JP 59068634 A JP59068634 A JP 59068634A JP 6863484 A JP6863484 A JP 6863484A JP S60212843 A JPS60212843 A JP S60212843A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- needle
- electrode
- heating
- electric field
- 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
- G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
- G11B13/06—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for optically and by styli
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
- G11B9/02—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using ferroelectric record carriers; Record carriers therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、高密度記録装置に用いられる記録針、特に、
電界の印加、加熱などによって、非晶質状態から結晶状
態への相変化、または結晶状態から非晶質状態への相変
化が生じるような材料による記録層を備えている記録媒
体の記録媒体面に摺接する記録針に設けられている電極
による電界の変化によって、記録の対象にされている情
報信号が記録媒体の記録層に記録されるようになされて
いる高密度記録装置の記録針に関するものである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a recording needle used in a high-density recording device, in particular,
The recording medium surface of a recording medium that has a recording layer made of a material that undergoes a phase change from an amorphous state to a crystalline state or from a crystalline state to an amorphous state by applying an electric field, heating, etc. Relating to a recording needle of a high-density recording device in which an information signal to be recorded is recorded on a recording layer of a recording medium by changes in the electric field caused by an electrode provided on the recording needle that slides into contact with the recording needle. It is.
（従来技術と問題点）
電界の印加や加熱などによって非晶質状態から結晶状態
への相変化または結晶状態から非晶質状態への相変化が
生じるような材料（例えばＴｅ Ｏｘ）による記録層を
備えている記録媒体を用いて情報信号を記録する際に、
いわゆる電場強化光結晶化現象を利用して、電界の印加
と光照射との双方によって情報信号を記録するという場
合に、従来は電界の印加手段と光の照射手段とが個別に
構成されていたので、構成が複雑であるという点が量販
になっていた。(Prior art and problems) A recording layer made of a material (for example, Te Ox) that undergoes a phase change from an amorphous state to a crystalline state or from a crystalline state to an amorphous state by applying an electric field or heating. When recording an information signal using a recording medium equipped with
When recording information signals by both applying an electric field and irradiating light using the so-called electric field-enhanced photocrystallization phenomenon, conventionally, the means for applying the electric field and the means for irradiating the light were configured separately. Therefore, it was sold in mass quantities due to its complicated structure.
（問題点を解決するための手段）
本発明は、電界の印加、加熱などによって、非晶質状態
から結晶状態への相変化、または結晶状態から非晶質状
態への相変化が生じるような材料による記録層を備えて
いる記録媒体の記録媒体面に摺接する記録針に設けられ
ている電極による電界の変化によって、記録の対象にさ
れている情報信号が記録媒体の記録層に記録されるよう
になされている高密度記録装置の記録針において、前記
した電極が設けられている記録針の内部に加熱用の光を
通すようにした高密度記録装置における記録針、及び、
電極が設けられている記録針に加熱用の光を通過させる
ようにするとともに、記録針の電極の先端部付近に記録
針の内部を通過した加熱用の光が集まるように記録針の
形状を定めてなる高密度記録装置における記録針、なら
びに電極が設けられている記録針に加熱用の光を通過さ
せるようにするとともに、記録針の電極が設けられてい
る面以外の面を光の反射面に構成してなる高密度記録装
置における記録針を提供して従来の問題点を解決したも
のである。(Means for Solving the Problems) The present invention is directed to a method in which a phase change from an amorphous state to a crystalline state or a phase change from a crystalline state to an amorphous state occurs by applying an electric field, heating, etc. An information signal to be recorded is recorded on the recording layer of the recording medium by changes in the electric field caused by an electrode provided on a recording needle that is in sliding contact with the recording medium surface of the recording medium that is equipped with a recording layer made of a material. A recording needle for a high-density recording device configured as described above, in which heating light is passed through the inside of the recording needle provided with the above-mentioned electrode, and
In addition to allowing the heating light to pass through the recording needle where the electrode is provided, the recording needle is shaped so that the heating light that has passed through the recording needle gathers near the tip of the electrode of the recording needle. In addition to allowing heating light to pass through the recording needle in the specified high-density recording device and the recording needle provided with electrodes, it also allows the surface of the recording needle other than the surface provided with the electrodes to reflect light. This invention solves the conventional problems by providing a recording stylus for a high-density recording device having a surface structure.
（実施例）
以下、添付図面を参照して本発明の高密度記録装置にお
ける記録針の具体的な内容について詳細に説明する。(Example) Hereinafter, specific details of the recording needle in the high-density recording device of the present invention will be described in detail with reference to the accompanying drawings.
第１図は、本発明の高密度記録装置における記録針の一
実施例の側面図であり、この第１図において、Ｄは電界
の印加、加熱などによって、非晶質状態から結晶状態へ
の相変化、または結晶状態から非晶質状態への相変化が
生じるような材料による記録層１を基板２上に備えてい
る記録媒体であり、また、３は光学繊維、４は電極、５
は接続線、６はカンチレバーである。FIG. 1 is a side view of one embodiment of the recording needle in the high-density recording device of the present invention, and in this FIG. The recording medium is provided with a recording layer 1 on a substrate 2 made of a material that causes a phase change or a phase change from a crystalline state to an amorphous state, and 3 is an optical fiber, 4 is an electrode, and 5 is an optical fiber.
is a connection line, and 6 is a cantilever.
前記した第１図において、光学繊維３には図示されてい
ない光源からレーザ光が供給されており、また、光学繊
維３の先端部に導電性物質を蒸着するなどの手段によっ
て構成されている電極４には、図示されていない記録信
号源から接続線５を介して記録の対象とされている情報
信号電圧が供給されており、さらに前記した光学繊維３
の先端部付近に一端部が固着されているカンチレバー６
の基端部は、図示されていない移送装置に連結されてい
る。In FIG. 1, the optical fiber 3 is supplied with laser light from a light source (not shown), and an electrode is formed by depositing a conductive material on the tip of the optical fiber 3. 4 is supplied with an information signal voltage to be recorded from a recording signal source (not shown) via a connection line 5, and is further supplied with the optical fiber 3 described above.
A cantilever 6 with one end fixed near the tip of the cantilever 6
The proximal end of is connected to a transfer device, not shown.
前記した第１図示の記録針は、光学繊維３の先端部に電
極４を設けた構成となされているから、光源からのレー
ザ光を光学繊維３に通し、また。The above-mentioned recording needle shown in the first drawing has a structure in which an electrode 4 is provided at the tip of an optical fiber 3, so that a laser beam from a light source is passed through the optical fiber 3.
接続線５を介して記録の対象としている情報信号電圧を
電極４に与えることにより、記録媒体りにおける記録層
１、すなわち、電界の印加、加熱などによって、非晶質
状態から結晶状態への相変化、または結晶状態から非晶
質状態への相変化が生じるような材料、例えばＴｏ、Ｏ
ｘ、Ｇｅ、Ｓｎによる記録層１には、記録の対象とされ
ている情報信号が記録される。前記したレーザ光の強度
は、電界の印加、加熱などによって、非晶質状態から結
晶状態への相変化、または結晶状態から非晶質状態への
相変化が生じるような材料で構成されている記録層１に
、レーザ光の照射だけでは相変化を生じさせ得ない程度
の光強度になされるべきことば当然である。By applying an information signal voltage to be recorded to the electrode 4 via the connection line 5, the recording layer 1 in the recording medium is changed from an amorphous state to a crystalline state by applying an electric field, heating, etc. or a phase change from a crystalline state to an amorphous state, such as To, O
In the recording layer 1 made of x, Ge, and Sn, an information signal to be recorded is recorded. The intensity of the laser beam described above is such that the material is such that a phase change from an amorphous state to a crystalline state or a phase change from a crystalline state to an amorphous state occurs due to the application of an electric field, heating, etc. It goes without saying that the recording layer 1 should be irradiated with a laser beam at such a light intensity that no phase change can be caused by it alone.
次に、第２図は本発明の記録針の他の実施例の斜視図で
あり、また、第３図は第２図に示されている記録針の縦
断側面図である。第２図及び第３図において、７は光学
的に透明な物質で構成された記録針本体であり、この記
録針本体７には導電性物質による電極４が付着形成され
ており、また、記録針本体７は、それに入射されたレー
ザ光を電極４の先端部付近に集光させうるような形状の
ものになされている。第２図及び第３図における符号８
の部分は、記録針本体７に構成させた凸レンズ部分であ
る。第２図及び第３図に示す記録針は、それにカンチレ
バーを固着し、そのカンチレバーを移送体に連結して、
記録媒体の径方向に移動させるようにし、記録針本体７
に構成させた凸レンズ部分８に図示しないレーザ光源か
らレーザ光を入射させ、また、電極４に接続線５を介し
て記録の対象にされている情報信号電圧を供給して記録
媒体に対する記録動作を行なうのである。Next, FIG. 2 is a perspective view of another embodiment of the recording stylus of the present invention, and FIG. 3 is a longitudinal sectional side view of the recording stylus shown in FIG. 2. In FIGS. 2 and 3, reference numeral 7 denotes a recording stylus body made of an optically transparent material, and an electrode 4 made of a conductive material is attached to this recording stylus body 7. The needle body 7 is shaped so that the laser light incident thereon can be focused near the tip of the electrode 4. Reference numeral 8 in Figures 2 and 3
The portion shown in FIG. 1 is a convex lens portion formed on the recording needle main body 7. The recording needle shown in FIGS. 2 and 3 has a cantilever fixed thereto, and the cantilever is connected to a transporting body.
The recording needle main body 7 is moved in the radial direction of the recording medium.
Laser light from a laser light source (not shown) is incident on the convex lens portion 8 configured as shown in FIG. I will do it.
前記した構成の第２図、第３図示の記録針は、それの記
録動作に際して、記録針本体７に供給されたレーザ光が
、それのレンズ部分８によって電極４の先端部付近に集
光されるから、光の利用効率が高く、小さな出力のレー
ザ光源でも有効に使用できる。In the recording needle shown in FIGS. 2 and 3 having the above-described configuration, during recording operation, the laser beam supplied to the recording needle main body 7 is focused near the tip of the electrode 4 by the lens portion 8 of the recording needle. Therefore, the light utilization efficiency is high, and even a small output laser light source can be used effectively.
第４図は本発明の記毒針の他の実施例の斜視図いて、７
は光学的に透明な物質で構成された記録針本体であり、
この記録針本体７には導電性物質による電極４が付着形
成されており、また、記録針本体７における前記した電
極４が付着されている部分以外の外周部分には、光の反
射ｌｌ！９が構成されている。FIG. 4 is a perspective view of another embodiment of the poison needle of the present invention.
is the recording stylus body made of optically transparent material,
An electrode 4 made of a conductive material is attached to the recording stylus body 7, and light is reflected on the outer peripheral portion of the recording stylus body 7 other than the portion to which the electrode 4 is attached. 9 are configured.
第４図及び第５図に示す記録針は、それにカンチレバー
を固着し、そのカンチレバーを移送体に連結して、記録
媒体の径方向に移動させるようにし、記録針本体７に図
示しないレーザ光源からレーザ光を入射させ、また、電
極４に接続線５を介して記録の対象にされている情報信
号電圧を供給して記録媒体に対する記録動作を行なうの
である。The recording stylus shown in FIGS. 4 and 5 has a cantilever fixed to it, and the cantilever is connected to a transporting body so as to move in the radial direction of the recording medium. A recording operation is performed on the recording medium by inputting a laser beam and supplying an information signal voltage to be recorded to the electrode 4 via a connecting line 5.
前記した構成の第４図、第５図示の記録針は、それの記
録動作に際して、記録針本体７に供給されたレーザ光が
、記録針本体７の外周部分に施こされた反射膜９によっ
て電極４の先端部付近に集光されるから、この第４図、
第５図示の本発明の記録針でも光の利用効率が高く、小
さな出力のレーザ光源でも有効に使用できる。In the recording needle shown in FIGS. 4 and 5 having the above-described configuration, during the recording operation, the laser beam supplied to the recording needle body 7 is reflected by the reflective film 9 applied to the outer circumference of the recording needle body 7. Since the light is focused near the tip of the electrode 4, this figure 4,
The recording needle of the present invention shown in FIG. 5 also has high light utilization efficiency, and even a small output laser light source can be used effectively.
（効果）
以上、詳細に説明したところから明らかなように、本発
明の高密度記録装置における記録針は、電極が設けられ
ている記録針自体の中に加熱用のレーザ光を通し、その
レーザ光によって記録媒体の記録層が加熱されるように
したから、記録層に対する電界の印加と、加熱用の光の
照射とが記録針自体によって行なわれ、したがって、装
置の構成が簡単化される。また、記録針の電極の先端部
付近に加熱用の光が集光するように記録針の外形状を定
めたり、記録針における電極の付着部分を除く記録針の
外周部分に光の反射膜を構成することにより、光の利用
効率が良好になり、したがって、小出力のレーザ光源の
使用によっても記録層に対する有効な加熱を実現するこ
とができる。(Effects) As is clear from the detailed explanation above, the recording needle in the high-density recording device of the present invention passes heating laser light into the recording needle itself provided with electrodes. Since the recording layer of the recording medium is heated by light, the application of an electric field to the recording layer and the irradiation of heating light are performed by the recording needle itself, thus simplifying the configuration of the apparatus. In addition, the outer shape of the recording stylus is determined so that heating light is focused near the tip of the recording stylus's electrode, and a light reflective film is applied to the outer periphery of the recording stylus, excluding the area where the electrode is attached. With this structure, the efficiency of light utilization is improved, and therefore, effective heating of the recording layer can be achieved even by using a low-output laser light source.
Claims (1)
晶状態への相変化、または結晶状態から非晶質状態への
相変化が生じるような材料による記録層を備えている記
録媒体の記録媒体面に摺接する記録針に設けられている
電極による電界の変化によって、記録の対象にされてい
る情報信号が記録媒体の記録層に記録されるようになさ
れている高密度記録装置の記録針において、前記した電
極が設けられている記録針の内部に加熱用の光を通すよ
うにした高密度記録装置における記録針２、電界の印加
、加熱などによって、非晶質状態から結晶状態への相変
化、または結晶状態から非晶質状態への相変化が生じる
ような材料による記録層を備えている記録媒体の記録媒
体面に摺接する記録針に設けられている電極による電界
の変−化によって、記録の対象にされている情報信号が
記録媒体の記録層に記録されるようになされている高密
度記録装置の記録針において、前記した電極が設けられ
ている記録針に加熱用の光を通過させるようにするとと
もに、記録針の電極の先端部付近に記録針の内部を通過
した加熱用の光が集まるように記録針の形状を定めてな
る高密度記録装置における記録針 ３、電界の印加、加熱などによって、非晶質状態から結
晶状態への相変化、または結晶状態から非晶質状態への
相変化が生じるような材料による記録層を備えている記
録媒体の記録媒体面に摺接する記録針に設けられている
電極による電界の変化によって、記録の対象にされてい
る情報信号が記録媒体の記録層に記ｆｌ＃−されるよう
になされている高密度記録装置の記録針において、前記
した電極が設けられている記録針に加熱用の光を通過さ
せるようにするとともに、記録針の電極が設けられてい
る面以外の面を光の反射面に構成してなる高密度記録装
置における記録針[Claims] 1. A recording layer made of a material that causes a phase change from an amorphous state to a crystalline state or from a crystalline state to an amorphous state by applying an electric field, heating, etc. The information signal to be recorded is recorded on the recording layer of the recording medium by changes in the electric field caused by the electrode provided on the recording needle that is in sliding contact with the recording medium surface of the recording medium. In the recording needle 2 of a high-density recording device, heating light is passed through the inside of the recording needle in which the above-mentioned electrodes are provided. An electrode provided on a recording needle that comes into sliding contact with the recording medium surface of a recording medium that has a recording layer made of a material that causes a phase change from a crystalline state to a crystalline state or from a crystalline state to an amorphous state. In a recording needle of a high-density recording device, an information signal to be recorded is recorded on a recording layer of a recording medium by a change in an electric field due to a change in an electric field. A high-density recording device in which the shape of the recording needle is determined so that heating light passes through the needle and the heating light that has passed through the interior of the recording needle gathers near the tip of the electrode of the recording needle. The recording needle 3 in the recording device includes a recording layer made of a material that causes a phase change from an amorphous state to a crystalline state or from a crystalline state to an amorphous state by applying an electric field, heating, etc. An information signal to be recorded is recorded on the recording layer of the recording medium by changes in the electric field caused by an electrode provided on a recording needle that is in sliding contact with the surface of the recording medium. In the recording needle of the density recording device, the heating light is allowed to pass through the recording needle provided with the electrode described above, and the surface of the recording needle other than the surface provided with the electrode is made into a light reflecting surface. Recording needle in a high-density recording device made up of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59068634A JPS60212843A (en) | 1984-04-06 | 1984-04-06 | Recording stylus of high-density recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59068634A JPS60212843A (en) | 1984-04-06 | 1984-04-06 | Recording stylus of high-density recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60212843A true JPS60212843A (en) | 1985-10-25 |
Family
ID=13379363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59068634A Pending JPS60212843A (en) | 1984-04-06 | 1984-04-06 | Recording stylus of high-density recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60212843A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0665541A2 (en) * | 1994-01-31 | 1995-08-02 | Matsushita Electric Industrial Co., Ltd. | Information recording and reproducing device |
| EP1026674A1 (en) * | 1999-02-08 | 2000-08-09 | Fuji Photo Film Co., Ltd. | Near-field optical recording apparatus assistively heating recording medium |
| EP1091355A2 (en) * | 1999-09-29 | 2001-04-11 | Kabushiki Kaisha Toshiba | Recording medium, recording apparatus and recording method |
| JP2002197652A (en) * | 2000-12-22 | 2002-07-12 | Korea Electronics Telecommun | High-density information recording and reproducing device |
-
1984
- 1984-04-06 JP JP59068634A patent/JPS60212843A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0665541A2 (en) * | 1994-01-31 | 1995-08-02 | Matsushita Electric Industrial Co., Ltd. | Information recording and reproducing device |
| EP0665541A3 (en) * | 1994-01-31 | 1996-11-20 | Matsushita Electric Ind Co Ltd | Information recording and reproducing device. |
| US6101164A (en) * | 1994-01-31 | 2000-08-08 | Matsushita Electric Industrial Co., Ltd. | High density recording by a conductive probe contact with phase change recording layer |
| EP1026674A1 (en) * | 1999-02-08 | 2000-08-09 | Fuji Photo Film Co., Ltd. | Near-field optical recording apparatus assistively heating recording medium |
| EP1091355A2 (en) * | 1999-09-29 | 2001-04-11 | Kabushiki Kaisha Toshiba | Recording medium, recording apparatus and recording method |
| EP1091355A3 (en) * | 1999-09-29 | 2003-05-07 | Kabushiki Kaisha Toshiba | Recording medium, recording apparatus and recording method |
| JP2002197652A (en) * | 2000-12-22 | 2002-07-12 | Korea Electronics Telecommun | High-density information recording and reproducing device |
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