Linear motor and image reading apparatus

Details Linear motor and image reading apparatus Linear motor and image reading apparatus

1996-03-28

1998-09-01

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Linear

318135, H04N 1047, H02K 4102

Patent

active

058014624

ABSTRACT:
The invention is directed to a linear motor and a image reading apparatus. The motor comprises a rod-like stator formed of a magnetizable rod-like member provided by magnetization with a drive field magnet and a plurality of magnet portions providing multiple kinds of position information; a movable piece being movable along said stator and having an armature coil opposed to said field magnet; and a sensor reading the position information from the plurality of magnet portions. The apparatus includes motors such as the foregoing linear motors as drive source for sliders to be driven for scanning a document image.

REFERENCES:
patent: 5107157 (1992-04-01), Ito
patent: 5225725 (1993-07-01), Shiraki et al.
patent: 5229670 (1993-07-01), Kagawa
patent: 5325005 (1994-06-01), Denk
patent: 5332955 (1994-07-01), Hopper

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