RONAR-SMITH^® LASER OPTICS & IR IMAGING

3-Axis Dynamic Scanning System

As a perfect combination of post-objective scanning system and motorized translator, 3-Axis dynamic scanning system has been widely used in modern laser processing realm (cutting, marking and 3-Axis prototyping, etc.) because of its many advantages.

Different from the pre-objective scanning system, in a 3-Axis dynamic scanning system, the scanning mirrors are placed after the objective lens. This lens system is made of a movable expanding lens and focusing lens unit. The laser beam first enters an expander lens; the expanded beam will enter the focusing lens unit, then go through the scanning mirrors and reach the focal plane finally. Moving the expander lens with a motorized translator induces the change of the distance between the expander lens and the focusing lens, which makes the focused laser spot move within a two or three-dimensional space, so called “3-Axis scanning”.

A 3-Axis dynamic scanning system normally offers the following advantages:

* Adjustable range of scanning field size from 100mmX100mm to 2000mmX2000mm;

* Achieve smaller focused spot size compared to the pre-object scanning systems;

* Enhanced uniformity of the focused spot size from the center to the edge of the scanning field.