US Patent 7514702 Compact scan engine

A scan engine (15) includes illumination sources (48, 50) for projecting a light beam (40) upon a target object, a focusing lens (44) that receives a reflected light (34) of the target object and focuses a reflected image (35) as it passes through the focusing lens (44) along an optical axis (A-A), and a linear sensor (46) that receives the reflected image (35) from the focusing lens (44). The linear sensor (46) provides a signal (59) representing the reflected image (34). A circuit board (16) is integrally connected to the illumination sources (48, 50) and the linear sensor (46).