JPS577506A - Measuring method for convex surface - Google Patents
Measuring method for convex surfaceInfo
- Publication number
- JPS577506A JPS577506A JP8109580A JP8109580A JPS577506A JP S577506 A JPS577506 A JP S577506A JP 8109580 A JP8109580 A JP 8109580A JP 8109580 A JP8109580 A JP 8109580A JP S577506 A JPS577506 A JP S577506A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- convex surface
- profile
- radius vector
- coordinate
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000005259 measurement Methods 0.000 abstract 2
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)
Abstract
PURPOSE:To enable an easy measurement of a profile of a convex surface without making contact, by a method wherein a laser light source 2 and a half mirror 3, which points to a given direction, are united monolithically on a radius vector of an x y coordinate in which a profile of a convex surface to be measured coincides with an x y surface to be pivotably positioned. CONSTITUTION:A laser light source 2 and a half mirror 3 are monolithically united on a radius vector of an x y coordinate in which a profile of a convex surface to be measured coincides with an x y surface, and are located so that they can revolve around the origin 0. The half-mirror 3 crosses the x y surface at right angles, and can move in parallel on the radius vector in a manner to tilt at an angle of 45 deg. to a laser beam (the radius vector) LB. The half-mirror reflects the laser beam which is incident on the profile 1A of the convex surface. Through the parallel movement of the half-mirror 3, the coincidence of an incident beam with a reflection beam is detected by means of a half-mirror 4 and a sensor 5, and a coordinate P (x1, y1) of an incident point is found from values of a current angle theta, and current distance L and l. The repeat of said operations permits the easy measurement of the profile 1A of the convex surface in a noncontact manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109580A JPS577506A (en) | 1980-06-16 | 1980-06-16 | Measuring method for convex surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109580A JPS577506A (en) | 1980-06-16 | 1980-06-16 | Measuring method for convex surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS577506A true JPS577506A (en) | 1982-01-14 |
Family
ID=13736824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8109580A Pending JPS577506A (en) | 1980-06-16 | 1980-06-16 | Measuring method for convex surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS577506A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007218931A (en) * | 2007-06-06 | 2007-08-30 | Ricoh Co Ltd | Optical surface shape measuring method and apparatus, and recording medium |
| CN103776370A (en) * | 2014-01-06 | 2014-05-07 | 湖南丰汇银佳科技有限公司 | Face characteristic detection device and method |
-
1980
- 1980-06-16 JP JP8109580A patent/JPS577506A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007218931A (en) * | 2007-06-06 | 2007-08-30 | Ricoh Co Ltd | Optical surface shape measuring method and apparatus, and recording medium |
| CN103776370A (en) * | 2014-01-06 | 2014-05-07 | 湖南丰汇银佳科技有限公司 | Face characteristic detection device and method |
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