Ultraviolet transmittance analyzing method and instrument
US5923039A · kind A · utility
6Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Sep 16, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/59
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultraviolet transmittance analyzer for fabrics, translucent packaging, sunscreen products and the like using an internally pulsed white-light illuminated integrating sphere, exiting sample and reference diffusely reflected beams, and applying them respectively to separate sample and reference spectrographs with light detector arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.