Refractometer subassembly method and apparatus
US5355211A · kind A · utility
15Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1993 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Apr 2, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for creating an aligned subassembly of optically critical components of a temperature compensated, hand-held refractometer prior to installing the subassembly in a refractometer housing is disclosed. The preferred embodiment is a plastic subassembly frame with a critical angle prism reference surface, a temperature responsive member fulcrum, a compensating prism mount, an objective lens mount, and a reticle mount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.