Registers – Coded record sensors – Particular sensor structure
Patent
1994-09-26
1996-07-23
Pitts, Harold
Registers
Coded record sensors
Particular sensor structure
235467, G06K 710
Patent
active
055391923
ABSTRACT:
A bar code reader mirror oscillator is disclosed herein. The oscillator includes a permanent magnet having first and second poles of opposite polarity and an electromagnet having a core with first and second pole locations. The permanent magnet is fastened to a mirror carrier resiliently mounted to a frame to oscillate about a rotational axis, wherein the electromagnetic core is fastened to the frame so that the poles of the permanent magnet are equidistant from the pole locations of the electromagnet. This oscillator configuration directs substantially all of the energy applied to the electromagnet to the production of oscillatory motion in the associated reader mirror.
REFERENCES:
patent: 4387297 (1983-06-01), Swartz
patent: 5115120 (1992-05-01), Eastman
patent: 5304786 (1994-04-01), Pavlidis et al.
Annis Jeffrey R.
Ray Glen
Scofield Robert E.
Allen-Bradley Company Inc.
Horn John J.
Miller John M.
Morrow James G.
Pitts Harold
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