JPS6322620U - - Google Patents
Info
- Publication number
- JPS6322620U JPS6322620U JP11225086U JP11225086U JPS6322620U JP S6322620 U JPS6322620 U JP S6322620U JP 11225086 U JP11225086 U JP 11225086U JP 11225086 U JP11225086 U JP 11225086U JP S6322620 U JPS6322620 U JP S6322620U
- Authority
- JP
- Japan
- Prior art keywords
- optical media
- manufacturing optical
- glass master
- colored
- utility
- 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)
- Surface Treatment Of Glass (AREA)
Description
第１図は本考案の実施例を示す断面斜視図。第
２図は、本考案の第２の実施例を示す断面斜視図
。第３図は、本考案の第３の実施例を示す縦断面
図。第４図は従来の光メデイア製造用ガラス原盤
の縦断面図。
１……ガラス原盤、１ａ，１ｂ，１ｃ……ガラ
ス円盤、２……リング、３……チユーブ、４……
樹脂。
FIG. 1 is a cross-sectional perspective view showing an embodiment of the present invention. FIG. 2 is a cross-sectional perspective view showing a second embodiment of the present invention. FIG. 3 is a longitudinal sectional view showing a third embodiment of the present invention. FIG. 4 is a vertical cross-sectional view of a conventional glass master disk for optical media production. 1...Glass master disc, 1a, 1b, 1c...Glass disk, 2...Ring, 3...Tube, 4...
resin.
Claims (1)
アの製造に用いられる光メデイア製造用ガラス原
盤において、表面の一部に有色かつ不透明部が設
けられていることを特徴とする光メデイア製造用
ガラス原盤。 A glass master disk for manufacturing optical media, which is used for manufacturing optical media such as optical memories and compact disks, characterized in that a colored and opaque portion is provided on a part of the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11225086U JPS6322620U (en) | 1986-07-22 | 1986-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11225086U JPS6322620U (en) | 1986-07-22 | 1986-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6322620U true JPS6322620U (en) | 1988-02-15 |
Family
ID=30992947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11225086U Pending JPS6322620U (en) | 1986-07-22 | 1986-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6322620U (en) |
-
1986
- 1986-07-22 JP JP11225086U patent/JPS6322620U/ja active Pending