JPH028788U - - Google Patents

Info

Publication number

JPH028788U

JPH028788U JP8703088U JP8703088U JPH028788U JP H028788 U JPH028788 U JP H028788U JP 8703088 U JP8703088 U JP 8703088U JP 8703088 U JP8703088 U JP 8703088U JP H028788 U JPH028788 U JP H028788U

Authority

JP

Japan

Prior art keywords

optical disk

hole

optical disc

flexible plate

optical

Prior art date

1988-06-30

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

• Espacenet
• Global Dossier
• Discuss

• 230000003287 optical effect Effects 0.000 claims description 13
• 230000002093 peripheral effect Effects 0.000 claims description 2
• 238000010586 diagram Methods 0.000 description 1
• 238000012986 modification Methods 0.000 description 1
• 230000004048 modification Effects 0.000 description 1