JPS5496002A - Information recording plate - Google Patents
Information recording plateInfo
- Publication number
- JPS5496002A JPS5496002A JP199278A JP199278A JPS5496002A JP S5496002 A JPS5496002 A JP S5496002A JP 199278 A JP199278 A JP 199278A JP 199278 A JP199278 A JP 199278A JP S5496002 A JPS5496002 A JP S5496002A
- Authority
- JP
- Japan
- Prior art keywords
- information
- plate
- thin film
- dust
- 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
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
PURPOSE: To make possible stable recording, reproducing and further addition recording without causing missing of information despite deposition of dust, etc. by sealing a photo video disc information recording medium within the recesse of substrate by maintaining a specified spacing.
CONSTITUTION: A metal thin film 2 such as Bi as a recording medium is evaporated on an information plate 3 such as acrylic plate. The plate 3 is bonded by means of an adhesive agent to the portion 4 of a substrate such as glass provided with a recess 5 by maintaining a clearance 6 such as 1 mm in a clean room. Such information recording plate is rotated and is recorded with information by incident light I comprising focusing Ar laser light to the thin film 2 by a lens. Then, the dust in the air deposits on the plate 3 but will not deposit on the thin film 2. Since the focus is matched to the thin film 2, the dust having deposited becomes out of focus and gives no effect at all to the reproduction signal of information.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP199278A JPS5496002A (en) | 1978-01-13 | 1978-01-13 | Information recording plate |
NL7900205A NL7900205A (en) | 1978-01-13 | 1979-01-10 | OPTICAL INFORMATION CARRIER. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP199278A JPS5496002A (en) | 1978-01-13 | 1978-01-13 | Information recording plate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5496002A true JPS5496002A (en) | 1979-07-30 |
Family
ID=11516956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP199278A Pending JPS5496002A (en) | 1978-01-13 | 1978-01-13 | Information recording plate |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5496002A (en) |
NL (1) | NL7900205A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5548837A (en) * | 1978-09-29 | 1980-04-08 | Thomson Csf | Optical disk |
FR2474222A1 (en) * | 1980-01-23 | 1981-07-24 | Thomson Csf | METHOD FOR THERMO-OPTICAL INFORMATION REGISTRATION AND INFORMATION CARRIER FOR IMPLEMENTING SAID METHOD |
JPS5738339U (en) * | 1980-08-06 | 1982-03-01 | ||
JPS5774843A (en) * | 1980-10-24 | 1982-05-11 | Mitsubishi Electric Corp | Optical information recording disk and its recording device |
JPS5774842A (en) * | 1980-10-24 | 1982-05-11 | Mitsubishi Electric Corp | Optical information recording disk |
JPS58171734A (en) * | 1982-03-23 | 1983-10-08 | トムソン−セエスエフ | Optical disc protected from humidity |
JPS58155639U (en) * | 1982-04-13 | 1983-10-18 | ティーディーケイ株式会社 | optical card |
JPS59151345A (en) * | 1983-02-03 | 1984-08-29 | Toshiba Corp | Information storage medium |
JPS6145732U (en) * | 1984-08-30 | 1986-03-26 | パイオニア株式会社 | information recording medium |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4264911A (en) * | 1979-08-20 | 1981-04-28 | Mca Discovision, Inc. | Optical recording disc and related method of manufacture |
FR2474223A1 (en) * | 1980-01-23 | 1981-07-24 | Thomson Csf | METHOD FOR THERMO-OPTICAL INFORMATION REGISTRATION AND INFORMATION CARRIER FOR IMPLEMENTING SAID METHOD |
EP0049821B1 (en) * | 1980-10-09 | 1987-04-15 | Kabushiki Kaisha Toshiba | Data recording medium |
JPS5766540A (en) * | 1980-10-09 | 1982-04-22 | Toshiba Corp | Optical information storage carrier and its manufacture |
US4365257A (en) * | 1981-03-05 | 1982-12-21 | Minnesota Mining And Manufacturing Company | Stretched-film optical recording disc |
JPS57169938A (en) * | 1981-04-10 | 1982-10-19 | Sony Corp | Optical type recording medium |
FR2524186B1 (en) * | 1982-03-23 | 1989-02-24 | Thomson Csf | PROTECTED OPTICAL DISC COMPRISING A FLEXIBLE CLOSING ELEMENT |
NL8300478A (en) * | 1983-02-09 | 1984-09-03 | Philips Nv | OPTICALLY READABLE MEMORY DRIVE. |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS531002A (en) * | 1976-05-13 | 1978-01-07 | Philips Corp | Radiation sensitive record |
-
1978
- 1978-01-13 JP JP199278A patent/JPS5496002A/en active Pending
-
1979
- 1979-01-10 NL NL7900205A patent/NL7900205A/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS531002A (en) * | 1976-05-13 | 1978-01-07 | Philips Corp | Radiation sensitive record |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5548837A (en) * | 1978-09-29 | 1980-04-08 | Thomson Csf | Optical disk |
JPH01199336A (en) * | 1978-09-29 | 1989-08-10 | Thomson Csf | Optical disc |
JPH0132581B2 (en) * | 1978-09-29 | 1989-07-06 | Thomson Csf | |
FR2474222A1 (en) * | 1980-01-23 | 1981-07-24 | Thomson Csf | METHOD FOR THERMO-OPTICAL INFORMATION REGISTRATION AND INFORMATION CARRIER FOR IMPLEMENTING SAID METHOD |
JPS5738339U (en) * | 1980-08-06 | 1982-03-01 | ||
JPS6260737B2 (en) * | 1980-10-24 | 1987-12-17 | Mitsubishi Electric Corp | |
JPS634252B2 (en) * | 1980-10-24 | 1988-01-28 | Mitsubishi Electric Corp | |
JPS5774842A (en) * | 1980-10-24 | 1982-05-11 | Mitsubishi Electric Corp | Optical information recording disk |
JPS5774843A (en) * | 1980-10-24 | 1982-05-11 | Mitsubishi Electric Corp | Optical information recording disk and its recording device |
JPS58171734A (en) * | 1982-03-23 | 1983-10-08 | トムソン−セエスエフ | Optical disc protected from humidity |
JPH0348579B2 (en) * | 1982-03-23 | 1991-07-24 | Thomson Csf | |
JPS58155639U (en) * | 1982-04-13 | 1983-10-18 | ティーディーケイ株式会社 | optical card |
JPS59151345A (en) * | 1983-02-03 | 1984-08-29 | Toshiba Corp | Information storage medium |
JPH0250537B2 (en) * | 1983-02-03 | 1990-11-02 | Tokyo Shibaura Electric Co | |
JPS6145732U (en) * | 1984-08-30 | 1986-03-26 | パイオニア株式会社 | information recording medium |
Also Published As
Publication number | Publication date |
---|---|
NL7900205A (en) | 1979-07-17 |
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