发明名称 |
Method and apparatus for wobble correction using an agile beam polygon ros and all-spherical optics. |
摘要 |
Facet-to-facet pyramidal wobble is corrected without resorting to cylindrical optics by adapting agile beam concepts to provide real-time control of the light beam position on the photoreceptor. The agile beam is provided by either or both of a variable wavelength light source (202) or a variable index of refraction prism (232). The position of the light beam is determined by either or both of a super linear position detector (224) directly detecting the position of the light beam, or a facet detector (234) and a look-up table for indirectly estimating the position of the light beam. By actively compensating for pyramidal wobble, the passive but expensive and difficult-to-position cylindrical optics can be replaced with cheap and easy-to-position spherical optics (204, 218). <IMAGE> |
申请公布号 |
EP0660578(A3) |
申请公布日期 |
1996.01.17 |
申请号 |
EP19940309585 |
申请日期 |
1994.12.20 |
申请人 |
XEROX CORPORATION |
发明人 |
APPEL, JAMES J.;PAOLI, THOMAS L.;BRUEGGEMANN, HARRY P.;FISLI, TIBOR;NACMAN, ARON |
分类号 |
G02B26/10;B41J2/47;G02B26/08;G02B26/12;G02B27/00;G02F1/29;G06K15/12;H04N1/047;H04N1/113;H04N1/12 |
主分类号 |
G02B26/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|