A focus module for an optoelectronic sensor is provided that has a focus adjustable optics, a focus adjustment unit for varying a focal position of the optics, and a focus control to move the optics into a focal position corresponding to a distance value by means of the focus adjustment unit. The focus module here furthermore has a distance sensor for determining the distance value and the focus adjustment unit, the focus control, and the distance sensor are parts of the focus module.

Indicia readers may be configured with two illumination light sources: a primary light source for illuminating primary indicia (e.g., a barcode) and a secondary ultraviolet (UV) light source for revealing secondary indicia (e.g., UV fluorescent watermarks) that are used to protect against counterfeit and fraud. Ultraviolet light can be harmful. The present invention embraces methods and a device for controlling the secondary UV light source to limit UV exposure. When an exposure risks is detected, the UV light source is deactivated.

A wireless checkout system includes peripheral stations, a server that stores location information indicating a position coordinate of each of the peripheral stations, one or more base stations, and a mobile point-of-sale (POS) terminal. The mobile POS terminal includes a wireless communication interface configured to receive a wireless signal from the base stations, a display, and a processor. The processor designates one of the peripheral stations as an associated peripheral station, determines a position coordinate of the mobile POS terminal based on the wireless signal, selects, based on the determined position coordinate of the mobile POS terminal and the location information, another of peripheral stations that is closest to the mobile POS terminal to be an alternative peripheral station to be recommended for the checkout, when the associated peripheral station is not available, and then controls the display to display a screen indicating the alternative peripheral station.

A device includes: an image sensor to capture images of an object within an FOV, a guide projector and a processor. The processor is to analyze some of the images to detect entry of an encoded data marking carried by the object into the FOV, and in response to detecting such entry into the FOV: operate the guide projector to project a visual guide onto the object to guide movement of the encoded data marking to a first location indicated by the visual guide within the FOV; analyze more of the images to detect such movement to the first location, and then to a second location within the FOV; and in response to the movement to the second location, interpret the movement to the second location as receipt of manual input; and in response to the manual input, transmit data decoded from the encoded data marking to another device.

A method and apparatus to control optical communication between proximal devices, providing autonomous data transfer sessions that include optically-represented datagram (e.g., QR Code™) presentations, is disclosed. Optical control signals sent between a viewing device and a presenting device enable control of the presenting device without physical contact during initiation, performance, and termination of the transfer session. Advancement between datagrams is provided by control signals indicated by changes in relative orientation, changes in relative position, and gestural relative motion between the proximal devices.

A microcontroller-based code reader and method of reading a machine-readable indicia may include capturing, by an imager, an image of a machine-readable indicia disposed an object. An image subsample of an image captured by the imager may be read from the imager. The image subsample or partial image data may be stored in an embedded memory of a microcontroller in electrical communication with the imager. The machine-readable indicia may be decoded from the image subsample.

Barcode readers and barcode reader assemblies with lift handles are disclosed herein. An example bioptic barcode reader assembly includes a barcode reader having a housing and a metal frame secured to the housing. A retractable first lift handle having an elongated first aperture is positioned on a first side of the housing and a retractable second lift handle having an elongated second aperture is positioned on a second side of the housing, opposite the first side. Each of the first and second lift handles is movable relative to the housing between a retracted position and an extended position and the first and second apertures in the first and second lift handles overlie a first center of gravity of the barcode reader and a second center of gravity of the barcode reader assembly.

Authentication systems, devices, and methods are provided, which may use a scanner configured to capture an image of an authentication pattern in a predetermined target area; and a hologram generator configured to project a holographic target onto free space in the target area. Moreover, there may be provided a controller configured to process the image and output a determination of whether the authentication pattern meets a predetermined criterion.

An optical information reader includes an imaging lens and a lens retainer retaining the imaging lens and assembled, in this state, into the holder. The lens retainer includes a flange bottom surface and end faces as a reference surface that is parallel to an optical axis of the imaging lens. The holder includes a top surface and edge faces as a guide surface. The guide surface is brought into surface contact with the flange bottom surface and the end faces when the lens retainer is assembled into the holder, and is brought into slidable contact with the flange bottom surface and the end faces when the lens retainer is moved along the optical axis. Thus, influence of one-sided blur is minimized in terms of variation in resolution which is measured when obtaining an optimal focus position by changing relative positions of the area sensor and the imaging lens.

Disclosed are scanning equipment, a method, a device and a storage medium thereof. The equipment comprises a rotatable rotating component, a scanning device, and a positioning device, where: the positioning device is used for respectively positioning the rotating component rotated to different predetermined positions, and the scanning device is used for scanning goods held on the rotating component having been positioned.