Method for manufacturing a printhead with re-entrant nozzles
US6261742A · kind A · utility
3Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Feb 1, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1646
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing ink-jet printheads having nozzles with re-entrant profiles has the following steps. A source of electromagnetic energy is created which is then used with an optical system to produce a source of energy having a constant illumination angle on an process plane. A substrate is then exposed with the electromagnetic source to define the nozzles having the re-entrant profile. Also, apparatus for creating the constant illumination angle include an optical deflecting mask and an afocal optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.