Lasers have been established as universal tools in countless applications and the numbers are steadily increasing.
Variable apertures have an important advantage regarding the optimum imaging setup.
More than 10 years ago Sill Optics has presented as one of the first manufacturers, telecentric lenses with coaxial illumination coupling.
Aspheres offer the great advantage to accomplish monochromatic imaging tasks with one optical element where multiple lens elements would otherwise be needed.
With ongoing improvements in the development of laser systems, laser intensities are still increasing with the goal of enabling faster processing speed. This progress does result in ever increasing requirements for lenses.