Refractometer cell with integral lens
US4286873A · kind A · utility
12Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Jun 25, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fused glass refractometer cell is disclosed in which a lens is formed by the front surface of the cell and a reflective surface is applied to the rear surface of the cell. Means are provided to limit the passage of light through the cell to the central portion of the cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.