Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2005-11-29
2005-11-29
Frech, Karl D. (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462010, C235S454000
Reexamination Certificate
active
06969005
ABSTRACT:
An optical unit for an optical symbol reader comprises an optical scanner for scanning an optical symbol with the laser beam emitted by a light source, by angularly oscillating a reflection face for reflecting the laser beam owing to an electromagnetic force. The optical scanner comprises a loose bearing structure having a shaft and a bearing bore and supporting a rotor having the reflection face to angularly oscillate freely with respect to a base. A certain bearing gap is formed between an outer diameter of the shaft and an inner diameter of the bearing bore. The optical scanner further comprises a coil spring resiliently for urging the rotor in a predetermined direction so that a part of an outer circumferential face of the shaft may be contacted with an inner circumferential face of a bearing bore.
REFERENCES:
patent: 4387297 (1983-06-01), Swartz et al.
patent: 5559319 (1996-09-01), Peng
patent: 5945659 (1999-08-01), Dvorkis et al.
patent: 6129282 (2000-10-01), Reddersen
patent: 6230976 (2001-05-01), Sautter et al.
patent: 6382514 (2002-05-01), Chung
patent: 6616042 (2003-09-01), Gofman et al.
patent: 2002/0018274 (2002-02-01), Aizawa et al.
patent: 0 653 723 (1995-05-01), None
patent: 0 945 819 (1999-09-01), None
patent: 1 039 409 (2000-09-01), None
patent: 4-186313 (1992-07-01), None
patent: 6-139386 (1994-05-01), None
patent: 7-254041 (1995-10-01), None
patent: 11-326805 (1999-11-01), None
patent: 3074136 (2000-10-01), None
Frech Karl D.
Keyence Corporation
Smith Patent Office
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