摘要:
An arrangement for, and a method of, electro-optically reading a target by image capture, employ a scan engine in a handheld housing having a tilted handle. A single tilted printed circuit board (PCB) in the handle has front and rear surfaces that respectively face toward and away from the target during reading. An optical assembly having a pair of fold mirrors is mounted on the rear surface, for receiving return light from the target through an aperture in the PCB along the horizontal, and for directing the return light along a folded path. An imaging lens assembly projects the return light onto a solid-state, two-dimensional, image sensor to enable the return light to be detected over a field of view, and to generate an electrical signal indicative of the detected return light.
摘要:
A plurality of solid-state imagers is mounted in a reader, such as a bi-optical, dual window, point-of-transaction workstation, for capturing images along different fields of view of diverse targets useful for customer identification, customer payment validation, operator surveillance, and coded indicia. The imagers are commonIy mounted on a circuit board for joint installation at, and joint removal from, the reader for ease of serviceability.
摘要:
A compact, low-cost, high-performance, imaging engine for an imaging reader for, and a method of, imaging targets, include a single printed circuit board (PCB), an illumination light assembly supported by the PCB for illuminating a target, a single chassis mounted on the PCB, an imaging lens assembly supported by the chassis for capturing return light from the illuminated target, and a solid-state imager supported by the PCB for detecting the captured return light over a field of view, and for generating an electrical signal indicative of the captured light. A controller is mounted on or off the imaging engine, and is operatively connected to, and controls the operation of, the imager and the illumination light assembly, for processing the electrical signal into data indicative of the target being imaged.
摘要:
Combining one or more elements of a beam shaping assembly in a lens module to, for example, reduce the mechanical tolerances in construction of the assembly. An exemplary lens module comprises a molded plastic lens with alignment features, a cylindrical surface, a focusing surface, and an aperture. The aperture is formed by surface positioned on the lens module at an angle greater than the angle for total internal reflection.
摘要:
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.
摘要:
An imaging module for imaging, and a reader for and a method of electro-optically reading a target, include a support, an imaging assembly including a solid-state imager having an array of image sensors on the support for capturing return light over a field of view at a range of working distances from the target along a folded imaging path, and an illuminating assembly on the support for directing illumination light along a folded illuminating path having a length longer than the folded imaging path to uniformly illuminate the target with the illumination light. The longer length of the folded illuminating path enables the illuminating assembly to illuminate the target with more of the illumination light, and also enables the imaging assembly to capture more of the return light for increased imaging/reading performance.
摘要:
A solid-state imager is mounted in a reader, such as a bi-optical, dual window, point-of-transaction workstation, for capturing light along an optical axis over a field of view from diverse targets useful for customer identification, customer payment validation, operator surveillance, and coded indicia. An optical converter is located within the housing, for optically modifying and asymmetrically magnifying the field of view along mutually orthogonal directions generally perpendicular to the optical axis, and for increasing resolution of the imager along one of these directions.
摘要:
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.