Determination of color characteristics of objects using spatially modulated light
US10451482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2014 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Oct 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1477
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system is configured to determine a color distribution of an object moving along a flow direction relative to a spatial filter. The light emanating from the object is time modulated according to the mask features of the spatial filter. First and second detectors are arranged to sense the modulated light. The first detector senses light having a first wavelength spectrum and generates a first electrical output signal in response to the sensed light. The second detector light senses light having a second wavelength spectrum and generates a second electrical output signal in response to the sensed light. Signals from the first and second detectors include information about color distribution of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.