发明名称 |
DOUBLE PASS OPTICAL SYSTEM FOR RASTER SCANNERS |
摘要 |
<p>A raster scanner with laser for generating a scanning beam and compact folded optical system for transmitting the beam to the object to be scanned. The optical system includes a first mirror for guiding the laser beam forward along a downwardly inclined slope to the modulator, a second mirror below the modulator for intercepting the beam from the modulator and folding the intercepted beam to guide the beam backwards along a horizontal plane to a third mirror which folds the beam and guides the beam forward along an upwardly inclined slope against the mirrored facets of a rotating polygon, the polygon scanning the beam through a preset scan arc and returning the beam via a focusing lens to the third mirror, the third mirror folding the scan beam and guiding the scan beam forward, and a fourth mirror for intercepting the scan beam and guiding the beam to the object to be scanned.</p> |
申请公布号 |
CA1179536(A) |
申请公布日期 |
1984.12.18 |
申请号 |
CA19830437168 |
申请日期 |
1983.09.20 |
申请人 |
XEROX CORPORATION |
发明人 |
ANTOS, RONALD L.;BRUEGGEMANN, HARRY P.;GRAFTON, DAVID A. |
分类号 |
G02B27/00;(IPC1-7):G02B27/00 |
主分类号 |
G02B27/00 |
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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