Read head for reading coded data by optical scanning

Details Read head for reading coded data by optical scanning Read head for reading coded data by optical scanning

2009-05-14

2010-11-30

Lee, Michael G (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S435000, C235S439000, C235S493000

Reexamination Certificate

active

07841530

ABSTRACT:
A read head includes a light emitting member outputting a predetermined laser beam to a data recording portion, a light receiving member receiving a return beam reflected by the data recording portion and detecting data included in the return beam, a movable section mounted with the light emitting member and the light receiving member, a support mechanism swingably supporting the movable section, and a driving mechanism swinging the movable section. Here, the driving mechanism includes a magnetic field generator disposed in one of the movable section and a fixed section and a magnetic driver disposed in the other and the magnetic field generator includes a first yoke, a second yoke, and a magnet disposed between the first yoke and the second yoke, the first yoke and the second yoke are opposed to each other, and the magnetic driver includes a plurality of coils. In addition, arm portions protruding in multiple directions from one of the yokes are disposed in the coils with a movement margin, respectively.

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English Translation of JP 2001-264667, Hidekuni, et al., “Optical Scannig Device”.
Search Report for International Application No. PCT/JP2007/072163 dated Feb. 19, 2008.

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