Fiber optic reflectance measurement apparatus
US4636082A · kind A · utility
2Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1983 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Jul 1, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/474
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To be certain of an even illumination of a field of measurement for measuring reflectance and to make it possible to have reflectance measuring heads of small size, the said field is illuminated with a number of discrete beams coming from transmitters, whose emission faces or areas are placed in a plane that is parallel to the plane of the said field. Preferably light guide cables are used for the transmitters and receivers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.