JPH01124928U - - Google Patents
Info
- Publication number
- JPH01124928U JPH01124928U JP1988018053U JP1805388U JPH01124928U JP H01124928 U JPH01124928 U JP H01124928U JP 1988018053 U JP1988018053 U JP 1988018053U JP 1805388 U JP1805388 U JP 1805388U JP H01124928 U JPH01124928 U JP H01124928U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reflective film
- information
- information recording
- hole
- 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
- 238000000465 moulding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第1図、第2図は本考案になる情報記録円盤を
示す図であり、第1図は平面図、第2図は断面図
である。
1……基板、2……透孔、3……信号記録領域
、4……反射膜、6……信号未記録領域。
1 and 2 are diagrams showing an information recording disk according to the present invention, with FIG. 1 being a plan view and FIG. 2 being a sectional view. DESCRIPTION OF SYMBOLS 1...Substrate, 2...Through hole, 3...Signal recording area, 4...Reflection film, 6...Signal unrecorded area.
Claims (1)
を備え、情報信号が微小のピツトとして形成され
た信号面に反射膜を被着形成した情報記録円盤で
あつて、前記信号が形成された信号記録領域と前
記透孔との間に形成される反射膜の無い信号未記
録領域に成形によつてシボ加工を施したことを特
徴とする情報記録円盤。 An information recording disk having a through hole in the center that fits with the turntable of the device, and a reflective film coated on the signal surface on which information signals are formed as minute pits, and the information recording disk has a reflective film coated on the signal surface, and the information signal is formed as a small pit. 1. An information recording disc characterized in that a signal-unrecorded area without a reflective film formed between a recording area and the through hole is textured by molding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988018053U JPH01124928U (en) | 1988-02-13 | 1988-02-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988018053U JPH01124928U (en) | 1988-02-13 | 1988-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01124928U true JPH01124928U (en) | 1989-08-25 |
Family
ID=31232355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988018053U Pending JPH01124928U (en) | 1988-02-13 | 1988-02-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01124928U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS618782A (en) * | 1984-06-21 | 1986-01-16 | Matsushita Electric Ind Co Ltd | Information carrier disk |
-
1988
- 1988-02-13 JP JP1988018053U patent/JPH01124928U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS618782A (en) * | 1984-06-21 | 1986-01-16 | Matsushita Electric Ind Co Ltd | Information carrier disk |
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