Acoustic lens arrays for ink printing

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

1986-12-19

1988-06-14

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

310335, G01D 1516

Patent

active

047515309

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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