JPS5547407A - Automatic measuring instrument for coordinates of edge line - Google Patents

Automatic measuring instrument for coordinates of edge line

Info

Publication number
JPS5547407A
JPS5547407A JP12109378A JP12109378A JPS5547407A JP S5547407 A JPS5547407 A JP S5547407A JP 12109378 A JP12109378 A JP 12109378A JP 12109378 A JP12109378 A JP 12109378A JP S5547407 A JPS5547407 A JP S5547407A
Authority
JP
Japan
Prior art keywords
light
edge
axis
signals
contactlessly
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.)
Granted
Application number
JP12109378A
Other languages
Japanese (ja)
Other versions
JPS6118962B2 (en
Inventor
Hiroshi Ito
Mitsutoshi Maeda
Nobuaki Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Central R&D Labs Inc
Original Assignee
Toyota Central R&D Labs Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Central R&D Labs Inc filed Critical Toyota Central R&D Labs Inc
Priority to JP12109378A priority Critical patent/JPS5547407A/en
Publication of JPS5547407A publication Critical patent/JPS5547407A/en
Publication of JPS6118962B2 publication Critical patent/JPS6118962B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To measure coordinates of edge lines of a three dimensional form matter automatically, precisely and contactlessly by following them automatically and contactlessly by optical means.
CONSTITUTION: A fine beam from a light source 1 repeats polarizations by a wide angle polarizer such as a galvano mirror, etc. which repeats polarizations in the center of the light axis, at right angle to the light axis e.g. in the positive or negative direction of the X-axis, at a fully speedy frequency f1 and cuts the edge line of a measured object 4 at right angles and reflects. The locus 32 of the scanning light by light cutting shows the section of the position and is condensed by a condensing lens 5 and introduced to a trapezoidal prism 6. A counter V image is obtained when the section is of a convex edge and a V image is given when it is of a concave edge. The light through the prism is converted into electrical signals by a light detector 7 as input signals to a phase detector 11. By comparing these signals with the reference signal from the signal source with a frequency f1. Signals are given in response to the X axis direction of the edge top point P to the origin O.
COPYRIGHT: (C)1980,JPO&Japio
JP12109378A 1978-09-30 1978-09-30 Automatic measuring instrument for coordinates of edge line Granted JPS5547407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12109378A JPS5547407A (en) 1978-09-30 1978-09-30 Automatic measuring instrument for coordinates of edge line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12109378A JPS5547407A (en) 1978-09-30 1978-09-30 Automatic measuring instrument for coordinates of edge line

Publications (2)

Publication Number Publication Date
JPS5547407A true JPS5547407A (en) 1980-04-03
JPS6118962B2 JPS6118962B2 (en) 1986-05-15

Family

ID=14802694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12109378A Granted JPS5547407A (en) 1978-09-30 1978-09-30 Automatic measuring instrument for coordinates of edge line

Country Status (1)

Country Link
JP (1) JPS5547407A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59162608U (en) * 1983-04-06 1984-10-31 橋本　宏 Bar bending measuring device
JPH01199102A (en) * 1988-12-26 1989-08-10 Hitachi Ltd Apparatus for inspecting three-dimensional shape

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59162608U (en) * 1983-04-06 1984-10-31 橋本　宏 Bar bending measuring device
JPH01199102A (en) * 1988-12-26 1989-08-10 Hitachi Ltd Apparatus for inspecting three-dimensional shape

Also Published As

Publication number Publication date
JPS6118962B2 (en) 1986-05-15

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