| 发明名称 |
OPTICAL INPUT DEVICE FOR MEASURING FINGER MOVEMENT |
| 摘要 |
<p>Measurements on a sheet (12), for example measurement of the movement of the sheet in a printer, can be performed by directing a measuring beam (8) towards the sheet and utilizing the effects of self-mixing in a diode laser (2) and Doppler shift in the measuring beam caused by the movement. The measuring method and a dedicated, cheap and compact, sheet sensor (1) may be used for determining different parameters and in different sheet processing apparatus.</p> |
| 申请公布号 |
EP1334464(B1) |
申请公布日期 |
2010.02.24 |
| 申请号 |
EP20010992980 |
申请日期 |
2001.11.06 |
| 申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
LIESS, MARTIN, D.;DOBRUSSKIN, CHRISTOPH;WEIJERS, ADEGONDA, L. |
| 分类号 |
G02B17/08;G06F3/042;B65H7/14;G01B9/02;G01B11/00;G01B11/26;G01P3/36;G01P13/00;G01S7/481;G01S7/483;G01S17/50;G06F3/033;H01L31/12 |
主分类号 |
G02B17/08 |
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