Registers – Coded record sensors – Particular sensor structure
Patent
1996-08-01
1998-05-26
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235472, G06K 0710
Patent
active
057569819
ABSTRACT:
An optical device for reading one- and two-dimensional symbologies at variable depths of field. The device has a light source for projecting emitted light toward the symbol image to be reflected back to an optical assembly, or zoom lens. The zoom gives multiple field of view capability to a CCD detector for detecting the reflected light, and generating a proportional electrical signal. The sensor is aimed for reading the symbology by a frame locator including a light source that emits a beam divided by diffractive optics into beamlets matching the dimensions of the respective field of views. Refractive optics are shifted in response to movement of the zoom lens for aiming the beamlets to form an aiming frame in accordance with the depth of field selected by the zoom lens. The device includes a microcomputer that communicates with a host PC including an API library with downloadable applications for image processing, including segmenting, analyzing, and decoding.
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Bian Long-Xiang
Fisher Donald
Lawrence Roland L.
Lebaschi Ali
Roustaei Alexander R.
Hajec Donald T.
Minh Le Thien
Symbol Technologies Inc.
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