JPS6037807U - Optical disc pit measuring device - Google Patents

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はディスク表面を拡大した状態の説明用の平面図
、第２図は従来の透過式測定法を示す説明用の断面図、
第３図は同じく反射式測定法を示す説明用の断面図、第
４図は透過式測定法を採用した従来装置の概略図、第５
図は本考案の光学式ディスクのピット測定器の一実施例
を示した平面図、第６図は側面図である。 ３・・・・・・発光器、１０・・・・・・被測定物、１
１・・・・・・測定台、１４．１５・・・・・・受光器
。Figure 1 is an explanatory plan view of the disk surface in an enlarged state, and Figure 2 is an explanatory cross-sectional view showing the conventional transmission measurement method.
Fig. 3 is an explanatory cross-sectional view showing the reflection measurement method, Fig. 4 is a schematic diagram of a conventional device employing the transmission measurement method, and Fig. 5
The figure is a plan view showing an embodiment of the optical disc pit measuring device of the present invention, and FIG. 6 is a side view. 3... Light emitter, 10... Measured object, 1
1... Measuring table, 14.15... Light receiver.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 測定台の光軸上に設置される光ディスク等の被測定物と
、該被測定物に光を照射するレーザ発光器等の光源と、
前記被測定物を中心に同径に移動自在であると共に前記
測定台の周囲の任意位置に固定される複数の受光器とか
ら形成されたことを特徴とする光学式ディスクのピット
測定器。An object to be measured, such as an optical disk, installed on the optical axis of the measurement table, and a light source, such as a laser emitter, that irradiates the object to be measured,
1. An optical disk pit measuring instrument, characterized in that it is formed of a plurality of light receivers that are movable in the same diameter around the object to be measured and that are fixed at arbitrary positions around the measuring table.