JPS58165794U

JPS58165794U - optical information storage medium

Info

Publication number: JPS58165794U
Application number: JP1982061643U
Authority: JP
Inventors: 秀夫安東
Original assignee: 株式会社東芝
Priority date: 1982-04-27
Filing date: 1982-04-27
Publication date: 1983-11-04

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図ないし第３図は従来例を示すもので、第１図は情
報記憶媒体の主要部分を示す概略的斜視図、第２図は第
１図■−■線に沿う断面図、第３図はトラックに沿った
各位置での光反射強度を示す説明図、第４図ないし第６
図は本考案の一実施例を示すもので、第４図は情報記憶
媒体の概略的平面図、第５図は要部の概略的平面図、第
６図は　　　　　′トラックに沿った各位置での光反射
強度を示す説明図、第７図および第８図は本考案の他の
実施例を示すもので第７図は主要部分の概略的斜視図、
第８図は第７図の■−■線に沿う断面図である。1 to 3 show a conventional example, in which FIG. 1 is a schematic perspective view showing the main parts of an information storage medium, FIG. 2 is a sectional view taken along the line ■-■ in FIG. The figures are explanatory diagrams showing the light reflection intensity at each position along the track, Figures 4 to 6.
The figures show one embodiment of the present invention; FIG. 4 is a schematic plan view of the information storage medium, FIG. 5 is a schematic plan view of the main parts, and FIG. 7 and 8 show other embodiments of the present invention, and FIG. 7 is a schematic perspective view of the main parts,
FIG. 8 is a sectional view taken along the line ■-■ in FIG. 7.

Claims

[Scope of utility model registration request]

In an optical information storage medium that has a tracking guide and pre-recorded signal information pits and can read at least information using focused laser light, the tracking guide and Optical information comprising two or more types of signal information pits, including pits that also provide tracking signals by differentiating at least one of the geometrical arrangements between them. storage medium.
,