Brewster angle refractometer
US5572314A · kind A · utility
111Cited by
7References
14Claims
0Family size
Inventors
Key dates
| Filing date | Sep 19, 1994 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Sep 19, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/87
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Brewster angle refractometer, based on the principal that reflectivity of light polarized parallel to the plane of incidence is minimized at the Brewster angle, is used to determine the refractive index of a material. The refractometer has a precision mechanical drive arrangement for precisely determining the refractive index over a range of 1.4 to 3.0, with an accuracy of at least .+-.0.02.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.