Method and apparatus for image-based color measurement using a smart phone
US9395292B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2014 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Mar 25, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/065
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for assisting in measuring a color of a target includes an enclosed housing having a first aperture formed in a first end and a second aperture formed in an opposite second end and aligned concentrically with the first aperture, an array of light emitting diodes positioned inside the housing, between the first aperture and the second aperture, and an array of reference colors having known reflectance spectra, the array of reference colors being removably positioned inside the housing, between the array of light emitting diodes and the second aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.