Systems and methods of conducting a bar code scan using an imaging-based bar code scan device

An imaging-based bar code scan device, comprising:

• an optical lens assembly having an image sensor and an optical lens configured with a focused region at a certain distance from the optical lens along an optical axis in the field of view of the optical lens, and a set of light emitting elements configured proximate the optical lens and laterally offset from the optical axis, with each light emitting element being operable to emit a light beam that represents a certain portion of a pattern, processing circuitry and a memory, the memory comprising instructions executable by the processing circuitry whereby the processing circuitry is configured to:
• send, to each light emitting element, an indication to enable that light emitting element to project the light beam that represents the certain portion of the pattern towards the optical axis in the focused region so that the light beams displayed on a surface of a target bar code overlap to form the pattern when the target bar code is in the focused region.