JPH01181130U - - Google Patents
Info
- Publication number
- JPH01181130U JPH01181130U JP1988077221U JP7722188U JPH01181130U JP H01181130 U JPH01181130 U JP H01181130U JP 1988077221 U JP1988077221 U JP 1988077221U JP 7722188 U JP7722188 U JP 7722188U JP H01181130 U JPH01181130 U JP H01181130U
- Authority
- JP
- Japan
- Prior art keywords
- film
- adhesive layer
- recording
- substrate
- disc
- 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
- 239000010410 layer Substances 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 229920002284 Cellulose triacetate Polymers 0.000 claims 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 claims 1
- 239000011241 protective layer Substances 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は 本考案の第一の態様である記録再生
盤用保護フイルムの一部断面を含む先方半分の斜
視図、第２図は 本考案の第二の態様である同保
護フイルムの一部分の断面図、第３図は 記録再
生盤の基本的概要を示す上面図、第４図は 記録
再生盤におけるピツトを拡大誇張して示した記録
再生盤の一部切欠断面図である。
図中、１〜６は本考案の保護フイルムに関し、
１は基体フイルム層、２は輪状粘着剤層、３は第
二フイルム層、４は粘着剤層、５は第三フイルム
層、６は粘着剤層であり、１１〜１７は記録再生
盤に関し、１１は円盤状透明基体、１２は溝部、
１３はピツト、１４は反射膜層、１５は保護層、
１６はレーベル、１７はレーザ光、１７ａはその
投射光、１７ｂはその反射光である。
Figure 1 is a perspective view of the front half of a protective film for recording and reproducing discs, which is the first aspect of the present invention, including a partial cross section, and Figure 2 is a partial perspective view of the protective film, which is the second aspect of the present invention. 3 is a top view showing the basic outline of the recording/reproducing disc, and FIG. 4 is a partially cutaway sectional view of the recording/reproducing disc showing the pits in the recording/reproducing disc enlarged and exaggerated. In the figure, 1 to 6 relate to the protective film of the present invention,
1 is a base film layer, 2 is a ring-shaped adhesive layer, 3 is a second film layer, 4 is an adhesive layer, 5 is a third film layer, 6 is an adhesive layer, 11 to 17 relate to a recording/reproducing disc, 11 is a disc-shaped transparent substrate, 12 is a groove,
13 is a pit, 14 is a reflective film layer, 15 is a protective layer,
16 is a label, 17 is a laser beam, 17a is its projected light, and 17b is its reflected light.
Claims (1)
可能な信号が記録されている記録再生盤の形状に
合わせて裁断されており、上記形状の外周及び内
周に対応する周縁に沿つて輪状に設けられ、該基
板に対して着脱可能な粘着剤層を有する三酢酸セ
ルローズフイルムからなる透明な基体フイルム層
、その一面に該粘着剤層を介して積層された第二
フイルム層及びその他面に該基板並びに該基体フ
イルムに対して着脱可能な粘着剤層を有する第三
フイルム層の積層からなることを特徴とする上記
記録再生盤の保護フイルム。 It is cut to match the shape of a recording/reproducing disc in which a signal that can be reproduced by changing the reflection of a light beam is recorded on a disc-shaped substrate, and is provided in a ring shape along the periphery corresponding to the outer and inner peripheries of the above-mentioned shape. a transparent base film layer made of cellulose triacetate film having an adhesive layer that is removable from the substrate, a second film layer laminated on one side of the film via the adhesive layer, and the substrate on the other side. A protective film for a recording/reproducing disc as described above, comprising a third film layer having an adhesive layer that is detachable from the base film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988077221U JPH01181130U (en) | 1988-06-13 | 1988-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988077221U JPH01181130U (en) | 1988-06-13 | 1988-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01181130U true JPH01181130U (en) | 1989-12-27 |
Family
ID=31302216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988077221U Pending JPH01181130U (en) | 1988-06-13 | 1988-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01181130U (en) |
-
1988
- 1988-06-13 JP JP1988077221U patent/JPH01181130U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01181130U (en) | ||
| JP3988236B2 (en) | optical disk | |
| JP3248415B2 (en) | Multi-layer disc | |
| JPH01109875U (en) | ||
| JPH02278519A (en) | Recording method for optical recording medium | |
| JPH0927143A (en) | Multilayered disk | |
| CN2368131Y (en) | Compound optical-disc of CD and DVD | |
| JPS61214244A (en) | Optical disc for double-face recording | |
| JPH0458819U (en) | ||
| JPH025111U (en) | ||
| JPS634270Y2 (en) | ||
| KR940000362Y1 (en) | Optical disk | |
| JPS58135041U (en) | optical recording and reproducing disk | |
| JPH01165917U (en) | ||
| JPH0242221U (en) | ||
| JPH0462519U (en) | ||
| JPH06203381A (en) | Optical disk | |
| JPH035218U (en) | ||
| JPH032481U (en) | ||
| JPS61193526U (en) | ||
| JPS62164626U (en) | ||
| JPS62110724U (en) | ||
| JPS61140429U (en) | ||
| JPS61153128U (en) | ||
| JPH01124928U (en) |