Optical encoding utilizing selectively refracted light
US5359184A · kind A · utility
12Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1991 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Nov 8, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0256
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Optical encoding of a cuvette or other object is provided by means of multiple facets molded integrally into flanges or other portions of the object, which facets selectively refract light passing therethrough in accordance with a predetermined code. The detector for the coded light includes a separate detector for each code state of the facets, with the detector having a different output when no facets are between a light source and the detectors. The facets are preferably bevels, which are selectively angled in accordance with the code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.