Spectrophotometric scanner
US7443508B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2006 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Nov 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spectrophotometric scanner suitable for producing spectral reflectance images of surfaces of samples for a plurality of wavelength bands is disclosed. The spectrophotometric scanner comprises a scanner head for collecting spectral reflectance data, a positioning mechanism for positioning the scanner head in relation to a surface, and a computing device for controlling the mechanism and recording and analyzing the spectral reflectance data. The computing device directs the positioning mechanism to position the scanner head on a row of locations in a grid of locations of the surface; directs the scanner head to measure spectral reflectance data for each location in the row of locations; records and analyzes the spectral reflectance data; and produces spectral reflectance images from the spectral reflectance data. A light source in the scanner head comprises a plurality of sequentially controllable LEDs, each producing light in a different wavelength band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.