发明名称 |
Redirecting optical mask for creating re-entrant nozzles |
摘要 |
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.
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申请公布号 |
US6387575(B2) |
申请公布日期 |
2002.05.14 |
申请号 |
US20010865986 |
申请日期 |
2001.05.25 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
CHEN CHIEN-HUA;PATE MICHAEL A |
分类号 |
B41J2/16;(IPC1-7):G03F9/00;B41J2/14 |
主分类号 |
B41J2/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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