BXZ-355-2-8X-A is a high-performance continuous zoom beam expander specifically designed for 355nm ultraviolet lasers. Manufactured with high-quality UV fused silica (UVFS) optical material and precision coating technology, it delivers excellent transmittance and a high damage threshold in the ultraviolet band, capable of withstanding long-term stable operation in high-power UV laser systems.

The key advantage of this product is its continuous zoom function, offering an adjustable magnification range from 2× to 8×, allowing flexible adjustment of laser beam diameter without the need for lens changes to suit various processing requirements. The beam expander is optimized for the diffraction limit, maintaining excellent beam quality throughout the entire 2× to 8× magnification range, supporting a maximum input beam diameter of approximately 4-6mm depending on magnification.This beam expander adopts a Galilean optical design with no internal focal point, effectively avoiding air ionization risks in high-power UV laser applications, making it particularly suitable for high-power UV laser systems. Optical elements feature high-damage-threshold anti-reflective coating, achieving transmittance exceeding 96%. The zoom ring is engraved with magnification markings, allowing precise beam expansion and collimation by rotating to the corresponding mark—simple and intuitive to operate. Adjustable divergence enables optimal matching with different laser systems, and a locking mechanism maintains stable magnification after focusing adjustment. The "-A" suffix indicates performance optimization based on the standard version.

The BXZ-355-2-8X-A is widely used in UV laser marking, flexible PCB cutting, ceramic drilling, semiconductor wafer dicing, scientific research, and laser measurement applications requiring high flexibility, making it an ideal optical solution for dynamic beam size adjustment in 355nm UV laser systems.