发明名称 |
Method and apparatus for optical scanning capable of reducing a dot position displacement and a dot diameter variation |
摘要 |
An optical scanning apparatus including a pulse modulation mechanism, a laser light source, a light deflecting mechanism, and a scan-imaging device. The pulse modulation mechanism performs a pulse modulation to input image data to output pulse-modulated image data. The laser light source generates a laser light beam according to the pulse-modulated image data. The laser light beam has a wavelength variation smaller than 2.0 nm per one pulse of the laser light beam. The light deflecting mechanism converts the laser light beam into a scanning laser light beam. The scan-imaging device condenses the scanning laser light beam into a scanning light spot on a surface to be scanned.
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申请公布号 |
US6788444(B2) |
申请公布日期 |
2004.09.07 |
申请号 |
US20020278916 |
申请日期 |
2002.10.24 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
SUZUKI SEIZO;YAZAWA JUNICHI;HAYASHI YOSHINORI;SOEDA MASAHIRO |
分类号 |
B41J2/44;G02B13/24;G02B26/10;G02B26/12;H04N1/036;H04N1/113;(IPC1-7):G02B26/08 |
主分类号 |
B41J2/44 |
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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