发明名称 |
Method for correcting the beam intensity in an image recording apparatus using a multi-channel light modulator |
摘要 |
<p>In an image recording apparatus 1 which records an image on a recording medium 9 by moving an optical head 10 while rotating the recording medium 9 held by a holding drum 7, a photodetector 2 having a plurality of photodetector elements 21 is provided in a range of movement of the optical head 10. In correcting beam intensity, the optical head 10 is positioned so precisely that the photodetector 2 can receive the signal light beams. This constitution makes it possible to detect signal light beams from the light modulator with high S/N ratio as compared with a conventional case where one photodetector element sequentially receives the signal light beams, and therefore possible to correct the beam intensities with high accuracy. <IMAGE></p> |
申请公布号 |
EP1311108(A2) |
申请公布日期 |
2003.05.14 |
申请号 |
EP20020023813 |
申请日期 |
2002.10.23 |
申请人 |
DAINIPPON SCREEN MFG. CO., LTD. |
发明人 |
KATAOKA,YOSHIKAZU;TAMAKI,EIICHI;HIRAWA, TAKAHIDE |
分类号 |
B41J2/44;G03F7/24;G06K15/12;H04N1/40;(IPC1-7):H04N1/40 |
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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