Abstract:
Laser power control arrangements interrupt power to a laser used in electro-optical readers upon detection of an over-power condition not conforming to preestablished standards to meet prevalent safety standards.
Abstract:
A target is uniformly illuminated with illumination light without specular reflections from a window and/or from the target in a field of view of a solid-state imager of an imaging reader to improve reader performance.
Abstract:
An imaging lens assembly focuses light from indicia in a working range of distances along an optical path onto a solid-state imager of an imaging reader. The lens assembly includes an axicon and an aperture stop that together are operative for extending the working range.
Abstract:
An imaging lens assembly focuses light from indicia in a working range of distances along an optical path onto a solid-state imager of an imaging reader. The lens assembly includes a negative spherical aberration component and an aperture stop that together are operative for extending the working range.
Abstract:
A target is illuminated with light for image capture by a solid-state imager and an imaging lens of an imaging reader over a wide field of view which is narrowed by a curved folding mirror that enables far-out and close-in targets to be imaged and read.
Abstract:
An imaging system for, and a method of, electro-optically reading targets, utilize an energizable illuminator for illuminating an illuminated target with illumination light, a solid-state, energizable imager having an array of image sensors for capturing return light from the illuminated target over a field of view, and for generating electrical signals indicative of the captured return light, and a controller for energizing the illuminator and the imager to process the electrical signals into data indicative of the illuminated target. A power reducer is operatively connected to the controller, for adaptively reducing electrical power consumption of the illuminator and/or the controller based on system usage.
Abstract:
A method and imaging system (10) is disclosed having a lens assembly (40) adapted for reading a target object (18) comprising an anamorphic lens assembly with first (L3) and second (L4) toroidal lenses adapted for positioning between a target object (18) and a sensor array (32) of an imaging system (10) such that an image received from the target object (18) is anamorphically magnified before impinging onto the sensor array along first and second directions by the anamorphic lens assembly (L3, L4). The anamorphic magnification in the first direction differs from the magnification in the second direction such that the image of the target object (18) projected onto the sensor array (32) appears elongated along the first direction relative to the second direction.
Abstract:
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.