Abstract:
Methods and apparatus for providing a relatively miniature injection molded scan motor, for example, for a retroreflective illumination system. An exemplary scan motor comprises a spring module that includes a static substrate and a dynamic substrate coupled together by an injection molded flexible spring. In an embodiment, the spring can be liquid injection molded. The scan motor also comprises a magnet and a reflective element that extends beyond the static substrate and/or the dynamic substrate.
Abstract:
Barcode fragments of a barcode symbol to be read by an imaging-based presentation workstation are stitched together by capturing a plurality of images, each containing a barcode fragment and a plurality of features located adjacent to the barcode fragment. The features in each captured image are detected and matched. The barcode fragments are stitched together based on the matched features in the captured images. The barcode symbol is read from the stitched barcode fragments.
Abstract:
An optical code reader having means for focusing an imaging optics assembly on a target image. The optical code reader includes a chassis and an imaging optics assembly pivotally mounted on the chassis. The imaging optics assembly is housed within an opto-mechanical barrel assembly. Pivotal movement of the opto-mechanical barrel assembly adjusts the focus of the imaging optics assembly on a target image. The optical code reader further includes an illumination device and an aiming device.
Abstract:
An optical code reader having means for focusing an imaging optics assembly on a target image. The optical code reader includes a chassis and an imaging optics assembly pivotally mounted on the chassis. The imaging optics assembly is housed within an opto-mechanical barrel assembly. Pivotal movement of the opto-mechanical barrel assembly adjusts the focus of the imaging optics assembly on a target image. The optical code reader further includes an illumination device and an aiming device.
Abstract:
An optical code reader (12) having structure for focusing an imaging optics assembly on a target image. The optical code reader includes a chassis (910) and an imaging optics assembly (914) pivotally mounted on the chassis. The imaging optics assembly is housed within an opto-mechanical barrel (934) assembly. Pivotal movement of the opto-mechanical barrel assembly adjusts the focus of the imaging optics assembly on a target image. The optical code reader further includes an illumination device (918) and an aiming device (920). An interface assembly (28) interfaces an imaging engine (14) of the imaging optics assembly to a circuitry assembly of the optical code reader. The imaging engine (14) is removably positioned and/or dimensioned and configured to fit within a predetermined form factor.
Abstract:
Laser power control arrangements interrupt power to a laser used in electro-optical readers upon detection of operating conditions not conforming to preestablished standards, and adjust power to enhance reader performance without violating prevalent safety standards. Dual monitors are used to independently monitor the output power of the laser.
Abstract:
ABSTRACT Methods and apparatus for providing a relatively miniature scan module, for example, a small retroreflective scan engine. An exemplary scan module comprises a chassis, a drive coil, a scan motor, a laser, a mirror module and a sensor. The mirror module can comprise, in an embodiment, a single piece fold/collection mirror module. Additionally, in an embodiment, the scan motor can comprise a molded spring module.
Abstract:
Laser power control arrangements interrupt power to a laser used in electro-optical readers upon detection of operating conditions not conforming to preestablished standards, and adjust power to enhance reader performance without violating prevalent safety standards. Dual monitors are used to independently monitor the output power of the laser.
Abstract:
An optical code reader (12) having structure for focusing an imaging optics assembly on a target image. The optical code reader includes a chassis (910) and an imaging optics assembly (914) pivotally mounted on the chassis. The imaging optics assembly is housed within an opto-mechanical barrel (934) assembly. Pivotal movement of the opto-mechanical barrel assembly adjusts the focus of the imaging optics assembly on a target image. The optical code reader further includes an illumination device (918) and an aiming device (920). An interface assembly (28) interfaces an imaging engine (14) of the imaging optics assembly to a circuitry assembly of the optical code reader. The imaging engine (14) is removably positioned and/or dimensioned and configured to fit within a predetermined form factor.
Abstract:
The combination of a rooftop optical element and a soft edge aperture stop, as well as the introduction of a negative spherical aberration in a positive focusing lens, improve working distance and depth of focus in both moving beam and imaging readers for electro-optically reading indicia such as bar code symbols, especially for close-in symbols, and moreover tend to reduce undesirable light intensity modulation in the beam profile thereby improving reader performance.