JPH0269702U

JPH0269702U -

Info

Publication number: JPH0269702U
Application number: JP14887188U
Authority: JP
Priority date: 1988-11-15
Filing date: 1988-11-15
Publication date: 1990-05-28

Description

[Brief explanation of drawings]

第１図はこの考案による実施例の構成図、第２
図は平行光による寸法測定装置の構成図、第３図
は被測定物４の寸法が大きい場合の従来技術によ
る測定構成図、第４図と第５図は第３図の構成で
被測定物４Ａの振れを測定する場合の説明図、第
６図は第５図の側面図、第７図と第８図は拡張ユ
ニツト８の動作説明図である。１……光源、２……レンズ、３……平行光、３
Ａ，３Ｂ……平行光、４……被測定物、４Ａ〜４
Ｃ……被測定物、５……光検出器、６……反射ミ
ラー、７Ａ〜７Ｃ……反射ミラー、８……拡張ユ
ニツト、８Ａ……拡張ユニツト、９……基準バー
。 Figure 1 is a configuration diagram of an embodiment according to this invention, Figure 2
The figure is a configuration diagram of a dimension measuring device using parallel light, Figure 3 is a configuration diagram of measurement by conventional technology when the dimension of the object 4 to be measured is large, and Figures 4 and 5 are the configuration diagram of the measurement device using the configuration shown in Figure 3. 6 is a side view of FIG. 5, and FIGS. 7 and 8 are explanatory diagrams of the operation of the expansion unit 8. 1...Light source, 2...Lens, 3...Parallel light, 3
A, 3B...Parallel light, 4...Object to be measured, 4A~4
C...Object to be measured, 5...Photodetector, 6...Reflection mirror, 7A to 7C...Reflection mirror, 8...Extension unit, 8A...Extension unit, 9...Reference bar.

Claims

[Claims for Utility Model Registration] The first parallel light 3 is divided by a first reflecting mirror 6,
A second reflecting mirror 7 depending on the size of the object to be measured 4
The distance between A and the third reflecting mirror 7B is adjusted by the expansion unit, and the second parallel light 3A from the second reflecting mirror 7A and the third parallel light 3B from the third reflecting mirror 7B are made parallel to each other. In a dimension measuring device that measures the shadow of the object to be measured 4 by irradiating the second parallel light beam 3A onto the upper edge of the object to be measured 4 and by irradiating the third parallel beam 3B onto the lower edge of the object to be measured 4, A fourth reflective mirror 7C is provided to receive a part of the first parallel light 3 divided by the first reflective mirror 6, and the fourth reflective mirror 7C is fixed, and the fourth parallel light 3 is reflected by the fourth reflective mirror 7C. Light 3C is converted into third parallel light 3B
A dimension measuring device using parallel light, characterized in that the fourth parallel light 3C is irradiated onto a fixed reference bar 9.