JPS5587332A - Magnetic light recording medium - Google Patents
Magnetic light recording mediumInfo
- Publication number
- JPS5587332A JPS5587332A JP16483278A JP16483278A JPS5587332A JP S5587332 A JPS5587332 A JP S5587332A JP 16483278 A JP16483278 A JP 16483278A JP 16483278 A JP16483278 A JP 16483278A JP S5587332 A JPS5587332 A JP S5587332A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- films
- mirror
- film
- substrata
- 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
Abstract
PURPOSE: To facilitate the easy detection and thus to reduce both the amount of materials and the cost by providing a thin film of the magnetic and optical material featuring the Faraday effect in adhesion close onto both reflector plates provided on both surfaces of the substrate or via the optical transmission material.
CONSTITUTION: Reflector substrata 2 and 3 are provided through the evaporation or other methods on both surfaces of substrate 1 made of a synthetic resin or glass, and thin films 4 and 5 featurig the Faraday effect are formed on the surface of substrate 2 and 3 each. Furthermore, transparent protective films 6 and 7 are provided on films 4 and 5. Thus the light arrived from linear polarization source 8 and via half-mirror 9 passes through film 4 and then reaches detector 10 from mirror 9 after reflection on substrate 2 to receive detection of the Faraday rotary angle. The rotary angle becomes double by transmission twice through film 4, and furthermore the materials can be saved since both surfaces are used. If the metal substrate the both surfaces of which are polished into the mirror surface is used, films 4 and 5 can be provided directly without using substrata 2 and 3.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16483278A JPS5587332A (en) | 1978-12-25 | 1978-12-25 | Magnetic light recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16483278A JPS5587332A (en) | 1978-12-25 | 1978-12-25 | Magnetic light recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5587332A true JPS5587332A (en) | 1980-07-02 |
Family
ID=15800769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16483278A Pending JPS5587332A (en) | 1978-12-25 | 1978-12-25 | Magnetic light recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5587332A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5724046A (en) * | 1980-07-16 | 1982-02-08 | Matsushita Electric Ind Co Ltd | Photoelectric recording medium and its recorer and reproducer |
| JPS57169996A (en) * | 1981-04-09 | 1982-10-19 | Sharp Corp | Magnetooptic storage element |
| JPS60131660A (en) * | 1984-11-01 | 1985-07-13 | Sharp Corp | Magneto-optical memory element |
| JPH03178062A (en) * | 1989-12-07 | 1991-08-02 | Fujitsu Ltd | Optical disk |
| US5055353A (en) * | 1989-05-16 | 1991-10-08 | Fuji Photo Film Co., Ltd. | Magneto-optical recording medium |
| JPH03228240A (en) * | 1990-09-21 | 1991-10-09 | Sharp Corp | Magneto-optical recording element |
-
1978
- 1978-12-25 JP JP16483278A patent/JPS5587332A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5724046A (en) * | 1980-07-16 | 1982-02-08 | Matsushita Electric Ind Co Ltd | Photoelectric recording medium and its recorer and reproducer |
| JPS57169996A (en) * | 1981-04-09 | 1982-10-19 | Sharp Corp | Magnetooptic storage element |
| JPS6227458B2 (en) * | 1981-04-09 | 1987-06-15 | Sharp Kk | |
| JPS60131660A (en) * | 1984-11-01 | 1985-07-13 | Sharp Corp | Magneto-optical memory element |
| US5055353A (en) * | 1989-05-16 | 1991-10-08 | Fuji Photo Film Co., Ltd. | Magneto-optical recording medium |
| JPH03178062A (en) * | 1989-12-07 | 1991-08-02 | Fujitsu Ltd | Optical disk |
| JPH03228240A (en) * | 1990-09-21 | 1991-10-09 | Sharp Corp | Magneto-optical recording element |
| JPH0512778B2 (en) * | 1990-09-21 | 1993-02-18 | Sharp Kk |
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