Patent attributes
Optical indicia reading apparatus can comprise a microprocessor, a memory, and a plurality of wafer level camera (WLC) modules. Each WLC module can comprise an image sensor and a focusing lens, and optionally, an optical band-pass filter (BPF) configured to pass light waves within a pre-defined wavelength range. Each WLC module can be configured to output a signal representative of the light incident on the image sensor. The optical axis of a first WLC module can be spatially disposed relatively to an optical axis of a second WLC module so that the fields of view (FOVs) of the WLC modules at least partially overlap. The depth of field (DOF) of a first WLC module can at least partially overlap with the DOF of a second WLC module. The optical indicia reading apparatus can be configured to generate an image frame by processing two or more signals of the plurality of signals outputted by the WLC modules. The optical indicia reading apparatus can be further configured to output an image frame comprising an image of decodable indicia and/or decoded message corresponding to the decodable indicia.
