Optical inspection of polymer-based materials
US4802762A · kind A · utility
18Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1986 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Oct 14, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0697
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical inspection system for using laser-induced luminescence to detect deterioration of a polymer-based material. The inspection system comprises an excitation means for illuminating a specimen of the polymer material to cause it to produce fluorescent radiation. The spectral representation of the fluorescence produced by the specimen is compared to the spectrum of a reference sample of known quality in order to obtain an indication of the physical characteristics of the specimen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.