System for using optical sensor focus to identify feature heights on objects being produced in a three-dimensional object printer
US10005229B2 · kind B2 · utility
3Cited by
15References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2015 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Nov 11, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A three-dimensional object printer generates image data of an object being formed in the printer with an optical sensor and identifies the heights of object features above a substrate on which the object is being formed. A controller operates one or more actuators to move the optical sensor at a plurality of distances above the object to generate image data of the object at a plurality of heights above the object. The controller identifies the distances of the features of the object with reference to the image data generated by the optical sensor and the focal length of the optical sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.