Shape measurement apparatus and shape measurement method
US10451410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Aug 6, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30136
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
[Object] To measure the surface height of a rigid body to be measured more accurately even if any one of three types of disturbance of translation in the height direction, rotation around the longitudinal-direction axis, and rotation around the width-direction axis has occurred during conveyance.[Solution] A shape measurement apparatus according to the present invention uses a shape-measuring light-section line that is a light-section line extending in the width direction of a rigid body to be measured and is used to calculate the surface shape of the rigid body to be measured, a first correcting light-section line that is parallel to the longitudinal direction of the rigid body to be measured and crosses the shape-measuring light-section line, and is used to correct the effect of disturbance acting on the rigid body to be measured, and a second correcting light-section line that is parallel to the longitudinal direction of the rigid body to be measured, crosses the shape-measuring light-section line, and exists in a width-direction position of the rigid body to be measured different from the first correcting light-section line. On the basis of the two kinds of correcting light-sec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.