Registers – Coded record sensors – Particular sensor structure
Patent
1995-06-26
1997-03-25
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235462, G06K 710
Patent
active
056147058
ABSTRACT:
An information reading apparatus comprises a laser diode, a mirror having a planar emission mirror unit for reflecting a laser beam emitted from the laser diode towards a target optical pattern and a concave condensing mirror unit, formed integral with the emission mirror unit, for condensing a reflection beam from the optical pattern in a predetermined direction, a photodetector, situated in such a position as not to interrupt the reflection beam from the optical pattern, for receiving the condensed reflection beam and converting the same to an electric signal, and a mirror driving apparatus for reflecting the laser beam from the scan mirror in a reciprocal rotational operation by an attractive force of a permanent magnet and a coil and a restoring force of a resilient body clamped by dampers on both sides, and reciprocally scanning the beam over a bar code within a predetermined range.
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Kashima Asako
Kubo Hidenobu
Mashiko Tomomi
Nagano Shinji
Osanai Akira
Frech Karl D.
Hajec Donald T.
Olympus Optical Co,. Ltd.
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