摘要:
A device for illuminating a portion of a hand-held scanner to indicate a status of the scanner provides an even distribution of light emission. The device might include various elements that facilitate an even distribution of the light. For instance, in one aspect the device includes a set of reflective surfaces that are positioned throughout the scanner together with light-emitting devices (e.g., LED) in a manner to evenly transmit light emissions. In another aspect, the device includes a light-diffusing translucent member, which smoothly and evenly presents the light emissions that are reflected off of the reflective surfaces.
摘要:
A data reading system, such as for reading optical codes being passed through a read zone, including one or more imagers, and at least one illumination module, all disposed in a reader housing, the illumination module in one configuration having a reflector housing comprised of a cone-shaped structure of generally rectangular cross-section, with a top inner surface and a bottom inner surface, wherein area of the cross-section of the cone-shaped structure increasing from a rear end to a front end, and an illumination source (such as a plurality of light emitting diodes) disposed at the rear end of the reflector housing and operative to generate illumination out through the reflector housing along an outgoing illumination path, the top inner surface of the reflector housing being a surface of high reflectivity relative to the bottom inner surface of the reflector housing which has a surface of relatively low reflectivity. Also disclosed are imager configurations for providing multiple fields of views of multiple imagers co-mounted on a common PCB.
摘要:
Methods and systems are disclosed for improved operation of readers of optical codes presented on electronic display screens or other highly reflective surfaces. Certain configurations include controlling image exposure and illumination pulse timing so as to avoid or minimize the perception of flicker of the pulsed illumination by a user or bystander while implementing methods for reading optical codes presented on electronic display screens or other highly reflective surfaces.
摘要:
A data reading system including one or more imagers, the data reading system having a lower main housing structure with a horizontal surface, across which items to be read are passed, and an upper reader module, such as pole-mounted top down reader (TDR) including an imager configured to provide a top down viewing angle from above the horizontal surface of the item in a read region. In one configuration, the pole-mounted upper reader module includes a one-piece post housing section mounted to the main housing structure and extending therefrom and containing imaging electronics and optics of the upper reader.
摘要:
A data reading system including a lower base section with a generally horizontal surface and a vertical section extending perpendicularly from the lower housing section. The vertical section includes a front face with a first scan window through which a data reader is operable to read encoded data on an item. The data reading system further includes a speaker system having a speaker grille laterally spaced apart from the first scan window on the front face of the vertical section. The speaker system may emit a sound or other message to confirm that the encoded data was (or was not) properly captured by the data reader. The data reading system may further include a second scan window on the front face of the vertical section. In such instances, the speaker grille may be positioned between the scan windows on the front face of the vertical section.
摘要:
A data reader including one or more imagers or imager assemblies that capture two-dimensional images of an object disposed in a view volume, the data reader having fold mirrors and other component arrangement that enable compact and efficient component configuration.
摘要:
An arrangement for a tunnel scanner includes a chassis with a first data reader structure and a second data reader structure attached thereto. The first and second data reader structures include data readers that are pre-positioned before the first and second data reader structures are attached to the chassis. Indexing features of the first and second data reader structures cooperate with corresponding indexing features of the chassis to properly position the data readers relative to the chassis. In one assembly method, one or more data reader structures having pre-positioned data readers are shipped to an assembly location for a tunnel data reader. A chassis is either provided at or shipped to the assembly location. In one configuration, the data reader structures are indexed and attached to the chassis such that each data reader is placed at a desired location and orientation with respect to the chassis.
摘要:
Systems and methods for reducing erroneous weighing of items such as by detecting items extending beyond a periphery of a weigh platter whereby in one configuration, the system employs a light guide for routing a light beam to a detector operative to detect interruption of the beam due to an item encroaching upon or overhanging an edge of the platter. In another configuration, the scale includes a perimeter gap between the platter outer edge and scanner housing frame or checkout counter, a light beam directed angularly upward through the gap is partially obstructed by the frame and platter whereby light exits the gap forming a light plane, wherein an object placed on the platter extending across the gap intersects the light plane thus scattering light rays, some of which are sensed by a detector. Various indicators for alerting the operator of off-scale detection are also described.
摘要:
Methods and systems are disclosed for producing color-image data representative of a color optical code or other color objects, particularly with a monochrome imager. Monochrome image-sensor data is produced by receiving a sequence of colored light emitted by an artificial light source and reflected from the color object. The sequence of colored light may be a red, green, and blue sequence of colored light emitting diode lights according to some embodiments. The monochrome imager produces the monochrome image-sensor data based at least in part on the portion of the reflected sequence of colored light. The monochrome image-sensor data is processed to produce color-image data representing the color optical code.