Abstract:
Coded information reader (1) for reading coded information (6) from an object, comprising a first camera assembly (10) having a first resolution, a first frame rate and a first field of view (18), and a second camera assembly (20) having a second resolution, a second frame rate and a second field of view (28), wherein the first resolution is lower than the second resolution and the first frame rate is higher than the second frame rate. The first camera assembly (10) is configured to acquire frames and to process the acquired frames to perform: - detection of object presence, - determination of operating parameters for both the first camera assembly (10) and the second camera assembly (20), - coded information decoding, - in case of failure of said coded information decoding, triggering of the second camera assembly (20) to acquire frames and to process the acquired frames to perform coded information decoding with the operating parameters set as determined by the first camera assembly (10) for the second camera assembly (20).
Abstract:
A scanning device includes: a housing portion defining a scanner head axis and a nose end; an image sensor to capture an indicia; an optics component between the image sensor and the nose end to cooperate with the image sensor to define a scanning device FOV extending along a scanning device optical axis through the nose end and toward an object surface, and to convey light reflected from the object surface within the scanning device FOV to the image sensor; and a light source to illuminate the object surface, wherein the scanning device optical axis is tilted relative to the scanner head axis to cause the scanning device FOV to extend along the scanning device optical axis in a direction tilted away from in parallel with the scanner head axis to prevent including a direct reflection of the light source from the object surface in the scanning device FOV.
Abstract:
A reading apparatus (5) for reading optical information (I) comprises a body (6) provided with a frontal face (7); optical information (I) acquisition means, which is arranged at a distance from the frontal face comprised between a minimum significant work distance, in particular 50mm, and a maximum work distance, in particular 350mm, defining a significant work range; illuminating means for emitting an illuminating pattern (2) such as to enable the optical information to be acquired; aiming means for emitting an aiming pattern (3) such as to indicate to a user a field of view of the apparatus; indicating means for emitting a reading apparatus outcome pattern (4) such as to supply indications to a user relating to the acquisition of the optical information (1). The illuminating means, the aiming means and the indicating means comprise respective non-coherent light sources. At least the illuminating means and/or the aiming means and/or the indicating means of the apparatus (5) are configurable by a plurality of operating parameters, for each of which respective permissible values are selectable that are able to influence the behaviour reading apparatus (5) with an effect that is detectable by said user during operation of the reading apparatus (5), The plurality of operating parameters comprises the wavelength of each of the light sources, the permissible values of the wavelength of the source of the aiming means are comprised in a range from 430 to 470 nm, the permissible values of the wavelength of the source of said illuminating means are comprised in a range from 590 to 650 nm; the permissible values of the wavelength of the source of the indicating means are comprised in a range from 530 to 560 nm. The permissible values of said wavelengths are such that the perception of the illuminating pattern (2), of the aiming pattern (3) and of the reading outcome pattern (4) is optimum to the human eye in consideration of the physiological properties thereof and this perception occurs with reduced visual fatigue to the user over the entire significant work range.
Abstract:
The present invention refers to a fixed position reader (10) of coded information comprising a housing (11) provided with a reading window (15) having a peripheral rim (15a), said housing (11) comprising a device (12) for reading coded information which generates a reading field projecting through the reading window (15) towards the outside of the housing (11), and a device (17) for visually indicating the reading result to a user, which is characterized in that said visual indication device (17) generates a visual indication (18) appearing substantially on the reading window (15) and/or on at least a portion of the peripheral rim (15a) of the reading window (15) and/or on at least a portion (11a) of the housing (11) adjoining laterally the peripheral rim (15a) of the reading window, said housing portion (11a) being on the left and/or right side of the reading window (15) and/or below the reading window (15). The present invention further refers to a camera based checkout security system (20) comprising at least a checkout security camera (21) and a fixed position reader (10) of coded information as described above, wherein the checkout security camera (21) generates a camera field of view directed towards a reading window (15) of the fixed position reader (10) of coded information.