Optical fiber type colorimeter
US4948256A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1988 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Sep 6, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0833
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to a optical fiber type colorimeter, and in particularly it refers to a colorimeter which uses optical fibers to transmit light to sample or reference matter. Scattered light reflected from matter surface is received by a optical fiber and then transmitted to a grating which splits light into spectrum. An A/D converter is connected to the driver circuit to communicated signal to computer for analysis of chromatic value, and determination of chrominace of sample, especially for analysis of some solid, products like textile, paper or brick. Since optical fibers are used in this invention, it enables more flexible installation of this invention. Moreover, precision of measurement is no longer affected by testing environment. The fabrication cost is lowered without the use of conventional reflective mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.