JPH0420686U - - Google Patents

Info

Publication number
JPH0420686U
JPH0420686U JP1990062932U JP6293290U JPH0420686U JP H0420686 U JPH0420686 U JP H0420686U JP 1990062932 U JP1990062932 U JP 1990062932U JP 6293290 U JP6293290 U JP 6293290U JP H0420686 U JPH0420686 U JP H0420686U
Authority
JP
Japan
Prior art keywords
metal reflective
reflective layer
disk substrate
hologram
pit
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
Application number
JP1990062932U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP1990062932U priority Critical patent/JPH0420686U/ja
Publication of JPH0420686U publication Critical patent/JPH0420686U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP1990062932U 1990-06-14 1990-06-14 Pending JPH0420686U (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990062932U JPH0420686U (en]) 1990-06-14 1990-06-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990062932U JPH0420686U (en]) 1990-06-14 1990-06-14

Publications (1)

Publication Number Publication Date
JPH0420686U true JPH0420686U (en]) 1992-02-20

Family

ID=31592529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990062932U Pending JPH0420686U (en]) 1990-06-14 1990-06-14

Country Status (1)

Country Link
JP (1) JPH0420686U (en])

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