JPH03109123U

JPH03109123U -

Info

Publication number: JPH03109123U
Application number: JP1763390U
Authority: JP
Priority date: 1990-02-23
Filing date: 1990-02-23
Publication date: 1991-11-08

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示す構成説明図
、第２図はこの実施例のインデツクススケール、
ホルダー等の斜視図、第３図は第１図の−断
面図、第４図は第１図の−断面図、第５図は
この考案の第二の実施例の第３図相当図、第６図
はこの考案の第三の実施例の第３図相当図、第７
図は第三の実施例の要部斜視図、第８図は従来例
の第２図相当図、第９図は従来例の第３図相当図
、第１０図は従来例の第４図相当図、第１１図は
第二の従来例の要部斜視図、第１２図は第二の従
来例の第３図相当図、第１３図は第二の従来例の
第４図相当図、第１４図は第三の従来例の第３図
相当図である。１……光学式測定装置、２……メインスケール
、３，４……インデツクススケール、５……発光
素子、６，７，８……受光素子、９……演算手段
、２３，３３……遮蔽部材。 Fig. 1 is a configuration explanatory diagram showing an embodiment of this invention, Fig. 2 is an index scale of this embodiment,
A perspective view of the holder, etc., FIG. 3 is a sectional view taken from FIG. 1, FIG. 4 is a sectional view taken from FIG. 1, and FIG. 5 is a view corresponding to FIG. Figure 6 is a diagram corresponding to Figure 3 of the third embodiment of this invention, and Figure 7
The figure is a perspective view of the main part of the third embodiment, Figure 8 is a diagram equivalent to Figure 2 of the conventional example, Figure 9 is a diagram equivalent to Figure 3 of the conventional example, and Figure 10 is equivalent to Figure 4 of the conventional example. Fig. 11 is a perspective view of the main part of the second conventional example, Fig. 12 is a view equivalent to Fig. 3 of the second conventional example, and Fig. 13 is a view equivalent to Fig. 4 of the second conventional example. FIG. 14 is a diagram corresponding to FIG. 3 of the third conventional example. DESCRIPTION OF SYMBOLS 1... Optical measuring device, 2... Main scale, 3, 4... Index scale, 5... Light emitting element, 6, 7, 8... Light receiving element, 9... Calculating means, 23, 33... Shielding member.

Claims

[Claims for Utility Model Registration] A main scale, an index scale disposed opposite to the main scale, a light-emitting element, a light-receiving element that receives light from the light-emitting element, and a signal from the light-receiving element. Calculating means is provided to calculate the amount of relative positional displacement between the main scale side and the index scale side based on , an optical measuring device in which a shielding member is disposed near an optical path for measurement to prevent light from other than the optical path from reaching a light receiving element.