In a scanning optical system that uses a rotating Galvano-mirror or Polygon mirror, the lens is designed so that the height of the

image is proportional to the scanning angle so that the scanning light can be scanned at the same velocity from the top surface.

LASER scan system consists of laser, beam expander, Galvano-mirror(or polygon-mirror), and F-theta lens. 

- Application to LASER marking, labeling system

- Application to LASER cutting system

- Using various of wavelength such as ND:YAG, CO2