F-theta lens element SL series

optical glassfused silicaachromatic

Ronar-Smith® f-theta scan lenses, commonly known as the f-theta lenses, are meticulously designed and crafted for a broad range of laser applications. With over a decade of expertise in optical grade and coating production, Ronar-Smith® f-theta lenses yield some of the world’s finest optical performance in the market. F-Theta Lens - Optical Glass (SL) F-Theta lens is commonly used in galvanometer scanning systems for laser marking, engraving, and cutting; with the ability to deliver a focused spot to many points within a scanning field. We also supply lens adaptors for major scan head providers in the world. F-Theta Lens - Fused Silica (SL-Q) SL-Q Series F-Theta lens is developed for ultrafast lasers with short pulse width and high pulse energy laser applications. These lenses are made with low dispersion Fused Silica with optical design to avoid back reflection and ghost image. Telecentric F-Theta Lens - Optical Glass (TSL) Telecentric F-Theta lens is a special type of lens system whereby the deflected off-axial laser beam can be perpendicularly focused on the workpiece as similar to the on-axial focusing beam. The advantage of the telecentric scan lens is that it is able to flatten the field curvature to the least distortion and yet offering superb spot quality throughout the scan field. Telecentric F-Theta Lens - Fused Silica (TSL-Q) For high powered laser and ultrafast laser sources, we offer TSL-Q series telecentric F-Theta lens to minimize thermal lensing and focal shift.