Method and device to measure the optical transmission factor of a tinted glass panel by reflection
US4925310A · kind A · utility
5Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1988 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Apr 12, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/55
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method and a device for determining the optical transmission factor of a glass panel by identification transmits an incident electromagnetic radiation towards the glass panel and the intensity of the reflected radiation is detected and measured. The reflection coefficient of the panel is compared with reflection coefficient reference values representing the transmission factor of tinted glass reference panels to determine the optical transmission factor of the panel examined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.