Acoustic lens arrays for ink printing

Details Acoustic lens arrays for ink printing Acoustic lens arrays for ink printing

B - Operations, Transporting

41

J

234/38, 101/96.0

B41J 2/045 (2006.01) B41J 2/14 (2006.01) B41J 2/155 (2006.01)

Patent

CA 1292384

ABSTRACT To facilitate the fabrication of acoustic printheads, arrays of spherical acoustic lenses are provided for bringing rf acoustic waves to essentially diffraction limited focii at or near the free surface of a pool of ink. These lenses produce focal patterns which are relatively free of localized amplitude variations, so they may be employed to fabricate acoustic printheads having relatively stable characteristics for acoustic printing.

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