Thanks for visiting Electro Optics.

You're trying to access an editorial feature that is only available to logged in, registered users of Electro Optics. Registering is completely free, so why not sign up with us?

By registering, as well as being able to browse all content on the site without further interruption, you'll also have the option to receive our magazine (multiple times a year) and our email newsletters.

Sill Optics

Share this on social media:

F-Theta lenses are important in material processing applications like cutting, welding, ablation and many more. They are designed to focus laser beams down on a plane scan area with a consistent spot size. Additionally they are available at various focal lengths from UV to IR and some even with telecentricity.

Sill Optics presents the S4LFT4125/075 for lasers with ultraviolet. The scan area has been improved from 35.0 x 35.0mm up to 50.5 x 50.5mm compared to the previous model. Despite the higher focal length a focal diameter of 8 µm (1/e²) can be reached inside the whole scan area with a 10 mm input beam diameter. According our high quality and performance, this lens is made of fused silica, is without internal or external back reflection focus points and furthermore diffraction limited.