Method for measuring three-dimensional position of object to be captured and method for capturing the object
US5280436A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1991 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Apr 17, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/45034
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring the three-dimensional position of an object to be captured. A laser measuring unit is provided having an image recognition camera confronting the object, first and second laser light emitting sources respectively irradiating from a slant direction a lateral slit light onto the object relative to a vertical axis of a vision coordinate system and irradiating a vertical slit light onto the object relative to a lateral axis of the vision coordinate system, one slit image on the vertical axis of the object and one slit image on the lateral axis of the object and one of the slit images on the vertical and lateral axes formed before and after the laser measuring unit is moved a predetermined amount in a direction of a camera optical axis relative to the object are taken into the camera, and the three-dimensional position is calculated from the relationship between the predetermined moving distance amount and the deviation of the slit images on the vision coordinates of the coordinate system. This method can be used to locate an electric adjustment position of an electronic component and to move the hand of an industrial robot carrying an electric adjustment member t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.