Imaging apparatus for imaging a nozzle section of a droplet dispenser device, dispenser apparatus including the imaging apparatus, and applications thereof
US12275027B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2022 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Sep 6, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Imaging apparatus 10 for imaging nozzle section 21 of droplet dispenser device 20 includes illumination device 11 arranged for creating illumination light directed along illumination axis A1 towards an illumination range configured for accommodating nozzle section 21, and camera device 12 having imaging axis A2 directed to the illumination range. Camera device 12 is configured for collecting nozzle image(s) of nozzle section 21 arranged in the illumination range, wherein illumination device 11 and camera device 12 are arranged for dark field illumination of nozzle section 21. Illumination axis A1 and imaging axis A2 are slanted relative to each other and an illumination angle between axes A1 and A2 is selected such that the at least one nozzle image is collected with a dark background. Furthermore, dispenser apparatus 100 for dispensing droplets on a target and an imaging method for imaging nozzle section 21 of droplet dispenser device 20 are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.