JPS57110908A - Measuring method for shape of object - Google Patents

Measuring method for shape of object

Info

Publication number
JPS57110908A
JPS57110908A JP18766080A JP18766080A JPS57110908A JP S57110908 A JPS57110908 A JP S57110908A JP 18766080 A JP18766080 A JP 18766080A JP 18766080 A JP18766080 A JP 18766080A JP S57110908 A JPS57110908 A JP S57110908A
Authority
JP
Japan
Prior art keywords
point
axis line
projection light
distance
shape
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
JP18766080A
Other languages
Japanese (ja)
Other versions
JPS6248162B2 (en
Inventor
Kazuo Tanie
Kiyoshi Komoriya
Tomoaki Nagasu
Susumu Tate
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP18766080A priority Critical patent/JPS57110908A/en
Publication of JPS57110908A publication Critical patent/JPS57110908A/en
Publication of JPS6248162B2 publication Critical patent/JPS6248162B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

PURPOSE:To measure a shape of an object, by utilizing the fact that, when incident light to a certain point on a surface of an object having a curved shape and to another point and the reflection lights of said incident lights satisfy a geometrical condition, said two points are judged as being located in a contour position. CONSTITUTION:A point P1 and a point P2 in a projection light device on an axis line L in common to a projection light device 10 and a collector 12 are produced, a projection light, which is caused to pass a point P positioned at a distance l1 from the axis line L, is reflected by a point A1 and a point A2, and a reflection light, passing through a point Q located at a distance l1 from the axis line L, is collected at a point Q1 and a point Q2 on a photoelectric conversion surface on the axis line L. In the case of P1P2=Q1Q2, the points A1 and A2 on the object pass PQ, and are positioned at an equal distance from a plane perpendicular to a paper surface. Through the rotation of a projector, P1 and P2 are projected in order at a pitch DELTAx to analyze an image-formation on a photoelectric conversion surface 13, and this obtains a contour line.
JP18766080A 1980-12-27 1980-12-27 Measuring method for shape of object Granted JPS57110908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18766080A JPS57110908A (en) 1980-12-27 1980-12-27 Measuring method for shape of object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18766080A JPS57110908A (en) 1980-12-27 1980-12-27 Measuring method for shape of object

Publications (2)

Publication Number Publication Date
JPS57110908A true JPS57110908A (en) 1982-07-10
JPS6248162B2 JPS6248162B2 (en) 1987-10-13

Family

ID=16209950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18766080A Granted JPS57110908A (en) 1980-12-27 1980-12-27 Measuring method for shape of object

Country Status (1)

Country Link
JP (1) JPS57110908A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152909A (en) * 1984-01-21 1985-08-12 Sanwa Seiki Kk Non-contact type three-dimensional measuring instrument
US6876458B2 (en) * 2002-03-20 2005-04-05 Steinbichler Optotechnik Gmbh Method and device for determining the absolute coordinates of an object

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152909A (en) * 1984-01-21 1985-08-12 Sanwa Seiki Kk Non-contact type three-dimensional measuring instrument
US6876458B2 (en) * 2002-03-20 2005-04-05 Steinbichler Optotechnik Gmbh Method and device for determining the absolute coordinates of an object

Also Published As

Publication number Publication date
JPS6248162B2 (en) 1987-10-13

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