Test plate reader
US4003151A · kind A · utility
4Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1975 |
| Grant date | Jan 18, 1977 |
| Priority date | — |
| Expiry date | Oct 3, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/253
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test plate reader wherein a transparent test plate having a multiplicity of material containing wells is located across a light path, and a target having a pattern of opaque areas corresponding in number and location to the wells is interposed in the light path between the light source and the plate, so that the wells may be viewed against a brighter uniformly lighted background for improved contrast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.