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.

A code reader for reading an optical code is provided that has a linear image sensor having a plurality of linear arrangements of light reception pixels for recording image data having the code and a control and evaluation unit that is configured to locate and read the code in the image data, wherein the light reception pixels have a different spectral sensitivity. Here, at least one linear arrangement is a white line whose reception pixels are sensitive to white light for recording a gray scale image and the other linear arrangements are color lines whose reception pixels are sensitive to light of only one respective color for recording a color image.

An indicia reading device for decoding decodable indicia includes an illumination subsystem, an aimer subsystem, an imaging subsystem, a memory, and a processor. The illumination subsystem is operative for projecting an illumination pattern. The aimer subsystem is operative for projecting an aiming pattern. The imaging subsystem includes a stereoscopic imager. The memory is in communication with the stereoscopic imager and is capable of storing frames of image data representing light incident on the stereoscopic imager. The processor is in communication with the memory and is operative to decode a decodable indicia represented in at least one of the frames of image data. The stereoscopic imager is configured to capture multiple images at a baseline distance apart to create three-dimensional images with depth information of the decodable indicia.

A distance to a target to be read by image capture over a range of working distances is determined by directing an aiming light spot along an aiming axis to the target, and by capturing a first image of the target containing the aiming light spot, and by capturing a second image of the target without the aiming light spot. Each image is captured in a frame over a field of view having an imaging axis offset from the aiming axis. An image pre-processor compares first image data from the first image with second image data from the second image over a common fractional region of both frames to obtain a position of the aiming light spot in the first image, and determines the distance to the target based on the position of the aiming light spot in the first image.

Disclosed are a method and terminal for scanning. The method for scanning of the terminal, provided by the embodiments of the present disclosure, includes: monitoring whether the terminal opens a bar code identification function or not; if monitoring that the bar code identification function of the terminal is opened, scanning a bar code by utilizing an edge touch area of the terminal; and executing a corresponding operation according to the scanned bar code. The technical solution provided by the embodiments of the present disclosure is used for solving the problems that long time consumption and low bar code scanning efficiency existed in the prior art, which is caused by the bar code being scanned using the camera, the camera needs to be focused first and then the bar code is acquired.

An attachment for use with a mobile device with an imaging device and a mobile-device light source can include one or more of an attachment base and an attachment body. The attachment base can be configured to secure the attachment body to the mobile device via a case for the mobile device. The attachment body can include at least one optical device for use with the imaging device, and an optical sensor to receive optical control signals from the mobile-device light source.

A camera interface circuit for a barcode scanner includes a binary conversion block and a selection module. The binary conversion block receives image signals from a camera, and converts gray levels of each pixel in each image frame into binary codes. The selection module alternately provides binary codes of one image frame and image signals of a consecutive image frame as outputs.

A device comprising: an optical emitter for emitting light having an emitted optical spectrum; an optical sensor for receiving light reflected from a tag attached to an object; and a processor configured to: determine a reflected optical colour spectrum of the light reflected from the tag based on an output of the optical sensor; retrieve an optical signature associated with said object from memory; and determine the authenticity of said object based on comparing the optical signature and the reflected optical colour spectrum.

Image processing for scanning devices based on laser aimer position, wherein a first frame and a second frame of image data related to an object associated with a barcode are captured using a scanning device. A difference between first pixel data for a first grouping of pixels associated with the first frame and second pixel data for a second grouping of pixels associated with the second frame is computed. Additionally, a location of a laser aimer pattern in the first frame or the second frame is determined based on a comparison between respective differences between the first pixel data for the first grouping of pixels and the second pixel data for the second grouping of pixels, where the laser aimer pattern is created by the scanning device.

The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.