Photoetching of acoustic lenses for acoustic ink printing
US6136210A · kind A · utility
64Cited by
18References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Nov 2, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1634
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of fabricating a lens comprising providing a photosoluble substrate having opposed first and second surfaces; exposing one of the surfaces of the substrate to a photoactive etchant; and exposing said etchant to patterned light such that a convex or concave, generally semi-spherical bulge or recess is formed in said substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.