Full-color images produced by white-light interferometry
US9282304B1 · kind B1 · utility
2Cited by
7References
26Claims
0Family size
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Key dates
| Filing date | Jun 2, 2014 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Jul 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/257
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A true-color image of a sample is obtained from interference data captured with a color camera. The irradiance of each color on the respective photo-sensor represents the sum of DC components received from the object and the reference surface and a modulated interference component. The color is determined at each pixel by removing the interference component and the reference-surface component from the irradiance data. The color map so derived is then combined with the height map produced with the same data to yield a true-color 3D map of the sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.