JPS61177654A - 光メモリデイスク - Google Patents

光メモリデイスク

Info

Publication number
JPS61177654A
JPS61177654A JP1711385A JP1711385A JPS61177654A JP S61177654 A JPS61177654 A JP S61177654A JP 1711385 A JP1711385 A JP 1711385A JP 1711385 A JP1711385 A JP 1711385A JP S61177654 A JPS61177654 A JP S61177654A
Authority
JP
Japan
Prior art keywords
recording
memory disk
groove
area
optical memory
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.)
Granted
Application number
JP1711385A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0580050B2 (OSRAM
Inventor
Tsutomu Matsui
勉 松井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP1711385A priority Critical patent/JPS61177654A/ja
Publication of JPS61177654A publication Critical patent/JPS61177654A/ja
Publication of JPH0580050B2 publication Critical patent/JPH0580050B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP1711385A 1985-01-31 1985-01-31 光メモリデイスク Granted JPS61177654A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1711385A JPS61177654A (ja) 1985-01-31 1985-01-31 光メモリデイスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1711385A JPS61177654A (ja) 1985-01-31 1985-01-31 光メモリデイスク

Publications (2)

Publication Number Publication Date
JPS61177654A true JPS61177654A (ja) 1986-08-09
JPH0580050B2 JPH0580050B2 (OSRAM) 1993-11-05

Family

ID=11934977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1711385A Granted JPS61177654A (ja) 1985-01-31 1985-01-31 光メモリデイスク

Country Status (1)

Country Link
JP (1) JPS61177654A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6247841A (ja) * 1985-08-26 1987-03-02 Matsushita Electric Ind Co Ltd 光学式情報記憶担体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6247841A (ja) * 1985-08-26 1987-03-02 Matsushita Electric Ind Co Ltd 光学式情報記憶担体

Also Published As

Publication number Publication date
JPH0580050B2 (OSRAM) 1993-11-05

Similar Documents

Publication Publication Date Title
EP0595349B1 (en) Optical disk
JPH01189039A (ja) 光学式情報記録担体
JPH02244445A (ja) 光学的情報記録媒体および光学的情報記録再生装置
JPS6260147A (ja) 光磁気デイスク
JPS61151843A (ja) 光メモリデイスク
EP1043714B1 (en) Optical recording medium
JPH09251639A5 (OSRAM)
JPS61177654A (ja) 光メモリデイスク
JP4088992B2 (ja) 光ディスク
EP1697934A1 (en) Hologram recording medium, and recording apparatus and reproducing apparatus for the same
JPS61126635A (ja) 光メモリデイスク
JPS61178752A (ja) 光デイスク
JPS61187139A (ja) 光学的情報記録方法
JP3304589B2 (ja) 情報記録方法及び情報再生方法
JP2943928B2 (ja) 光情報記録媒体及び光情報記録再生装置
JPH0452995B2 (OSRAM)
JPS6018832A (ja) 光学式情報円盤及びその記録再生装置
JPS58218033A (ja) 光磁気記録装置
JPS61129741A (ja) 光メモリデイスク
JPS59218645A (ja) 光デイスク
JPH03222127A (ja) 記録媒体
JPS6376124A (ja) 光情報記録デイスク
JPS62208445A (ja) 光磁気記録方法
JPS62208444A (ja) 光磁気記録方法
JPH04289539A (ja) 光ディスク