发明名称 |
IMPROVED LASER PATTERN GENERATION APPARATUS |
摘要 |
<p>A beam steering apparatus (502) for use in a laser pattern generation apparatus, having a steering mirror (602) for deflecting the radiant energy beam to a first point in space, a second steering mirror (604) for deflecting the radiant energy beam to a second point in space, and a position detection means (605-608) comprising a first beam splitting means (605) for creating an alignment beam from said radiant energy beam, a second beam splitting means (606) for creating a first positional beam and a second positional beam from said alignment beam, a first sensor (608) to detect the position of said radiant energy beam at said first point in space from said first positional beam, and a second sensor (607) to detect the position of said radiant energy beam at a second point in space from said second positional beam. <IMAGE></p> |
申请公布号 |
EP0670784(B1) |
申请公布日期 |
1999.08.18 |
申请号 |
EP19930924402 |
申请日期 |
1993.10.22 |
申请人 |
ETEC SYSTEMS, INC. |
发明人 |
ALLEN, PAUL, C.;JOLLEY, MATTHEW, J.;TEITZEL, ROBIN, L.;RIEGER, MICHAEL;BOHAN, MICHAEL;THOMAS, TIMOTHY |
分类号 |
G01D15/16;B23K26/04;B23K26/067;G02B26/12;G03F7/20;H01L21/027;H04N1/047;H04N1/113;H04N1/191;(IPC1-7):B41J2/435;H04N1/21 |
主分类号 |
G01D15/16 |
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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