JPH01154527U - - Google Patents

Info

Publication number

JPH01154527U

JPH01154527U JP4900588U JP4900588U JPH01154527U JP H01154527 U JPH01154527 U JP H01154527U JP 4900588 U JP4900588 U JP 4900588U JP 4900588 U JP4900588 U JP 4900588U JP H01154527 U JPH01154527 U JP H01154527U

Authority

JP

Japan

Prior art keywords

optical disk

reflected light

recording surface

written

signal

Prior art date

1988-04-12

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 8
• 230000000903 blocking effect Effects 0.000 claims 1
• 230000001678 irradiating effect Effects 0.000 claims 1
• 238000011144 upstream manufacturing Methods 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 2
• 238000001514 detection method Methods 0.000 description 1