Telecentric Scanning Lenses
Telecentric scanning lenses are a special configuration in which the arrangement of optics are designed to focus
down the beam such that it is always perpendicular to the flat field (Figure 10.41). This is accomplished by
ensuring that the system ‘stop’ is located at the front focal point of the lens system. The ‘stop’ is located at the
position where the beam is deflected from the axis.