Optical measurement device and method
US11300507B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 1, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Sep 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical measurement device and an optical measurement method are provided. The optical measurement device includes a test backplane, a light emitter, a center point detector and a movement device. The movement device is provided on the test backplane, and configured to carry a to-be-tested sample. The light emitter is configured to display a first center point on the to-be-tested sample, and the first center point corresponds to a center point of the test backplane. The center point detector is configured to detect a second center point and display the second center point on the to-be-tested sample, and the second center point is a center point of the to-be-tested sample. The movement device is further configured to move the to-be-tested sample, such that the first center point and the second center point coincide with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.