Acoustic printheads with optical alignment

Details Acoustic printheads with optical alignment Acoustic printheads with optical alignment

1994-12-05

1997-05-20

Reinhart, Mark J.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

359619, 347 19, B41J 204

Patent

active

056316780

ABSTRACT:
Acoustic printheads having an optically transparent substrate, at least two optical lenses, which may be part of the substrate, and a first structure, which may also be part of the substrate. The optical lenses focus light which irradiates the substrate into optical focal points at known locations relative to the first structure. The first structure may be part of an acoustic droplet ejector which includes an acoustic lens that is fabricated on the optically transparent substrate. The optical focal points can be used to precisely align the first structure with another structure.

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