Optical calibration tool
US11815445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2020 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Dec 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/144
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical calibration tool includes a first body, a light emitter, a light receiver, a second body, and a light reflecting member. The first body has a first engaging port and a second engaging port. The light emitter and the light receiver are disposed in the first body. The second body has a third engaging port and a channel communicated with each other. The third engaging port is configured to selectively engage one of the first engaging port and the second engaging port. When the third engaging port is engaged with the first engaging port, the light emitter is optically coupled to the light reflecting member. When the third engaging port is engaged with the second engaging port, the light receiver is optically coupled to the light reflecting member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.