JPH0340621U - - Google Patents
Info
- Publication number
- JPH0340621U JPH0340621U JP1989100656U JP10065689U JPH0340621U JP H0340621 U JPH0340621 U JP H0340621U JP 1989100656 U JP1989100656 U JP 1989100656U JP 10065689 U JP10065689 U JP 10065689U JP H0340621 U JPH0340621 U JP H0340621U
- Authority
- JP
- Japan
- Prior art keywords
- discs
- recording layer
- outer peripheral
- attached
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
図面は本考案による光デイスクの一実施例を示
し、第１図は光デイスクの要部断面図、第２図Ａ
は２枚の円盤の貼り合せ状況を示す破断せる要部
斜視図、同図Ｂはバランスウエイトの拡大斜視図
である。
１……円盤、２……凹凸パターン、３……反射
膜、４……記録層、５……保護膜、６……環状突
部、７……掛止溝、８……小孔、９……粘着剤層
、１０……環状溝、１１……バランスウエイト、
１２……掛止片、１３……突出部、１４……スリ
ツト溝、１５……小ウエイト、１６……レーベル
。
The drawings show an embodiment of the optical disk according to the present invention, and FIG. 1 is a cross-sectional view of the main part of the optical disk, and FIG.
1 is a broken perspective view of a main part showing how two discs are bonded together, and FIG. 1B is an enlarged perspective view of a balance weight. DESCRIPTION OF SYMBOLS 1... Disc, 2... Uneven pattern, 3... Reflective film, 4... Recording layer, 5... Protective film, 6... Annular protrusion, 7... Latching groove, 8... Small hole, 9 ... Adhesive layer, 10 ... Annular groove, 11 ... Balance weight,
12...Latching piece, 13...Protrusion, 14...Slit groove, 15...Small weight, 16...Label.
Claims (1)
の記録層を有する円盤同志又は前記円盤と同一形
状で記録層を有しない円盤を記録層が内側になる
ように貼着剤で貼り合せてなる光デイスクにおい
て、 ２枚の円盤の外周側面に、２枚の円盤の貼り合
せ位置を含む環状溝を設けると共に各円盤の外周
縁に複数の掛止溝を等間隔に環状に設け、両円盤
の貼り合せ方向に対向する掛止溝に嵌合する一対
の掛止片を有するバランスウエイトを具備してな
る光デイスク。[Claims for Utility Model Registration] Discs having a recording layer with a concavo-convex pattern that can be read by laser light, or discs having the same shape as the aforementioned discs but without a recording layer, are attached with an adhesive so that the recording layer is on the inside. In the optical disk formed by combining the two discs, an annular groove including a bonding position of the two discs is provided on the outer peripheral side of the two discs, and a plurality of retaining grooves are provided in an annular shape at equal intervals on the outer peripheral edge of each disc, An optical disc comprising a balance weight having a pair of latching pieces that fit into latching grooves facing each other in the direction in which both discs are attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989100656U JPH0340621U (en) | 1989-08-29 | 1989-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989100656U JPH0340621U (en) | 1989-08-29 | 1989-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0340621U true JPH0340621U (en) | 1991-04-18 |
Family
ID=31649650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989100656U Pending JPH0340621U (en) | 1989-08-29 | 1989-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0340621U (en) |
-
1989
- 1989-08-29 JP JP1989100656U patent/JPH0340621U/ja active Pending
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