Radiation sources for colorants
US11390094B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Oct 30, 2020 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Oct 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/145
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an example, apparatus includes a first radiation source to output radiation at a first waveband and a second radiation source to output radiation at a second waveband, which is different from the first waveband. The apparatus may receive a medium having marked thereon a first colorant and a second colorant and the first and second wavebands may be selected such that an energy absorbance efficiency of the first colorant is higher than that of the second colorant at the first waveband and an energy absorbance efficiency of the second colorant is higher than that of the first colorant at the second waveband.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.