JPH0197422U - - Google Patents
Info
- Publication number
- JPH0197422U JPH0197422U JP19415987U JP19415987U JPH0197422U JP H0197422 U JPH0197422 U JP H0197422U JP 19415987 U JP19415987 U JP 19415987U JP 19415987 U JP19415987 U JP 19415987U JP H0197422 U JPH0197422 U JP H0197422U
- Authority
- JP
- Japan
- Prior art keywords
- recording area
- resist plate
- finishing
- mirror
- flat
- 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
Landscapes
- Manufacturing Optical Record Carriers (AREA)
Description
第１図はこの考案の一実施例を示す拡大断面図
、第２図は平面図、第３図は従来例を示す平面図
、第４図はその一部を切欠いて示す正面図である
。
１…細溝、２…ターンテーブル、３…レジスト
板、Ａ…記録領域。
FIG. 1 is an enlarged sectional view showing one embodiment of this invention, FIG. 2 is a plan view, FIG. 3 is a plan view showing a conventional example, and FIG. 4 is a partially cutaway front view. 1... Thin groove, 2... Turntable, 3... Resist plate, A... Recording area.
Claims (1)
イラル状の細溝をレジスト板の記録領域外の両側
領域に形成し、前記記録領域対応部分を鏡面処理
して平坦に形成してなることを特徴とするターン
テーブル。 A turn characterized by forming concentric or spiral thin grooves for vacuum suction of a resist plate on both sides of the resist plate outside the recording area, and mirror-finishing the portion corresponding to the recording area to make it flat. table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19415987U JPH0197422U (en) | 1987-12-22 | 1987-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19415987U JPH0197422U (en) | 1987-12-22 | 1987-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0197422U true JPH0197422U (en) | 1989-06-28 |
Family
ID=31484904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19415987U Pending JPH0197422U (en) | 1987-12-22 | 1987-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0197422U (en) |
-
1987
- 1987-12-22 JP JP19415987U patent/JPH0197422U/ja active Pending
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