Hard copy re-emission color measurement system
US8125625B2 · kind B2 · utility
0Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2009 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Apr 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/468
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Hard copy re-emission color measurement system, comprising a light arrangement for emitting light onto a hard copy, a light detector arranged to detect light re-emitted by the hard copy, and a control circuit configured to process the detected re-emitted light. The light arrangement is arranged to separately and simultaneously emit a first light having wavelengths longer than an ultraviolet wavelength and a second light having wavelengths in the ultraviolet range. The light arrangement is provided with a light guide arranged to guide the first and second light on an at least partly overlapping region on a hard copy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.