Droplet dispensing device, method for providing droplets, and light source for providing UV or X-ray light
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United States of America Patent
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May 28, 2019
Grant Date -
Nov 16, 2017
app pub date -
May 11, 2017
filing date -
May 11, 2016
priority date (Note) -
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Abstract
The invention relates to a droplet dispensing device (4) comprising a reservoir (9) for containing a liquid medium (10), an outlet (11) for dispensing droplets of said liquid medium (10) from said reservoir (9), an actuation means (12) for generating and transmitting a mechanical oscillation at an excitation frequency, and a resonant structure comprising a piston (15) coupled to said actuation means (12) for transmitting said mechanical oscillation to the liquid medium (10) contained in said reservoir (9) such that droplets are formed from said liquid medium (10), wherein a resonance frequency of said resonant structure is sufficiently close to said excitation frequency, such that resonance occurs.
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