JPS5724809A - Shape detector - Google Patents
Shape detectorInfo
- Publication number
- JPS5724809A JPS5724809A JP9997980A JP9997980A JPS5724809A JP S5724809 A JPS5724809 A JP S5724809A JP 9997980 A JP9997980 A JP 9997980A JP 9997980 A JP9997980 A JP 9997980A JP S5724809 A JPS5724809 A JP S5724809A
- Authority
- JP
- Japan
- Prior art keywords
- pickup element
- height
- slit
- shape
- galvanomirror
- 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
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
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2518—Projection by scanning of the object
-
- 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
Abstract
PURPOSE:To enable the detection of the shape of an object at a high detecting sensitivity, by a method wherein a pickup element, which is positioned in parallel to a slit image, self-scans in the longitudinal direction of the object, and scanning in a direction of a height is performed by means of a galvanomirror. CONSTITUTION:An one-domentional pickup element 13 is located in parallel to a slit image 3, and a galvanomirror 12 is positioned so that a direction of a height of an object 2 can be scanned. In this constitution, a slit light is projected from a slit projector 1, and a bright line 3, formed on the object 2, is detected from the oblique side by means of an image formation lens 8. The pickup element 13 located on a real picture surface is caused to self-scan in a longitudinal direction, and a scanning in a direction of a height is conducted by means of a mirror 12. A video signal from the pickup element 13 is outputted as a shape waveform by means of a shape extract circuit 17. This enables the pickup element 13 to take a sufficient long trigger time, and thereby a detective sensitivity can be improved.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9997980A JPS5724809A (en) | 1980-07-23 | 1980-07-23 | Shape detector |
US06/286,068 US4472056A (en) | 1980-07-23 | 1981-07-23 | Shape detecting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9997980A JPS5724809A (en) | 1980-07-23 | 1980-07-23 | Shape detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5724809A true JPS5724809A (en) | 1982-02-09 |
JPS637321B2 JPS637321B2 (en) | 1988-02-16 |
Family
ID=14261780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9997980A Granted JPS5724809A (en) | 1980-07-23 | 1980-07-23 | Shape detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5724809A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5381181A (en) * | 1976-12-06 | 1978-07-18 | Mitsubishi Rayon Co | Inspecting method and apparatus for running flat articles |
JPS54114264A (en) * | 1978-02-27 | 1979-09-06 | Nippon Steel Corp | Screw inspection method |
-
1980
- 1980-07-23 JP JP9997980A patent/JPS5724809A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5381181A (en) * | 1976-12-06 | 1978-07-18 | Mitsubishi Rayon Co | Inspecting method and apparatus for running flat articles |
JPS54114264A (en) * | 1978-02-27 | 1979-09-06 | Nippon Steel Corp | Screw inspection method |
Also Published As
Publication number | Publication date |
---|---|
JPS637321B2 (en) | 1988-02-16 |
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